(19)
(11)EP 3 687 006 A1

(12)EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(43)Date of publication:
29.07.2020 Bulletin 2020/31

(21)Application number: 18922084.1

(22)Date of filing:  26.11.2018
(51)International Patent Classification (IPC): 
H01R 13/66(2006.01)
(86)International application number:
PCT/CN2018/117467
(87)International publication number:
WO 2020/107163 (04.06.2020 Gazette  2020/23)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(71)Applicant: Guangdong Gopod Group Co., Ltd.
Shenzhen, Guangdong 518108 (CN)

(72)Inventor:
  • The designation of the inventor has not yet been filed
     ()

(74)Representative: Ipside 
7-9 Allées Haussmann
33300 Bordeaux Cedex
33300 Bordeaux Cedex (FR)

  


(54)HUB WITH BUILT-IN MOBILE POWER SOURCE CIRCUIT


(57) The present invention falls within the field of video signal conversion, and discloses a hub in which a mobile power supply circuit is built, the hub comprising the mobile power supply circuit and a hub circuit, wherein the mobile power supply circuit comprises a first connector, a first direct current conversion module, a charging and discharging management module, a second direct current conversion module, and an electric core; and wherein the hub circuit comprises a power supply management module, a second connector, a video signal conversion module, and a third connector. Because the hub is provided with the mobile power supply circuit, power is supplied by means of the mobile power supply circuit when the hub circuit is not connected to a power adapter, thereby improving the convenience of the hub.




Description

Technical Field



[0001] The present invention falls within the field of video signal conversion, and in particular to a hub in which a mobile power supply circuit is built.

Background of the Invention



[0002] A conventional hub comprises a third connector connected to a power adapter and used to switch a third direct current power supply output by the power adapter, a power supply management module used to turn on or turn off the third direct current power supply according to a charging protocol, a second connector used to switch the third direct current power supply and a first video signal, a video signal conversion module used to generate a second video signal according to the first video signal, and a third connector used to switch the second video signal. Because a hub circuit can supply power only by means of the power adapter, there is a defect of poor convenience.

Summary of the Invention



[0003] The present invention provides a hub in which a mobile power supply circuit is built, so as to solve the problems that traditional hubs in which a mobile power supply circuit is built have a low usage efficiency and poor convenience.

[0004] The present invention is implemented by a hub in which a mobile power supply circuit is built, the hub being connected to a notebook computer and a power adapter, and the hub in which the mobile power supply circuit is built comprising the mobile power supply circuit and a hub circuit,
wherein the mobile power supply circuit comprises:

a first connector used to switch a first direct current power supply output by the power adapter or a first power supply;

a first direct current conversion module connected to the first connector and used to generate a second direct current power supply according to the first direct current power supply or generate the first power supply according to a second power supply;

a charging and discharging management module connected to the first direct current conversion module and used to turn on or turn off the second direct current power supply or the second power supply;

a second direct current conversion module connected to the charging and discharging management module and used to generate a fourth power supply and a secondary power supply according to a third power supply,

wherein the charging and discharging management module is further used to generate the third power supply according to the second power supply; and

an electric core connected to the charging and discharging management module and used to store electric energy or output the second power supply according to the second direct current power supply;

and wherein the hub circuit comprises:

a power supply management module connected to the second direct current conversion module and used to turn on or turn off the fourth power supply according to the secondary power supply and a charging protocol;

a second connector connected to the power supply management module and used to switch a first video signal;

a video signal conversion module connected to the second connector and used to generate the first video signal according to a second video signal; and

a third connector connected to the video signal conversion module and the notebook computer and used to switch the second video signal and the fourth power supply.



[0005] In one of the embodiments, the power supply management module comprises:

a mode control module connected to the second direct current conversion module and the third connector and used to perform charging protocol communication and output a switch signal according to the secondary power supply; and

a power supply switch module connected to the second direct current conversion module, the mode control module, and the third connector and used to turn on or turn off the fourth power supply according to the switch signal.



[0006] In one of the embodiments, the mode control module comprises a mode selection and PD power controller, a first crystal oscillator, a first capacitor, and a second capacitor,
wherein a first power supply terminal of the mode selection and PD power controller is connected to a tenth power supply; a second power supply terminal of the mode selection and PD power controller is connected to an eleventh power supply; a crystal oscillator input terminal of the mode selection and PD power controller is connected to a first terminal of the first crystal oscillator and a first terminal of the first capacitor; a crystal oscillator output terminal of the mode selection and PD power controller is connected to a second terminal of the first crystal oscillator and a first terminal of the second capacitor; a first charging UFP configuration terminal of the mode selection and PD power controller and a second charging UFP configuration terminal of the mode selection and PD power controller jointly constitute an upstream facing port configuration terminal of the mode control module; a first charging DRP configuration terminal of the mode selection and PD power controller and a second charging DRP configuration terminal of the mode selection and PD power controller jointly constitute a dual role port configuration terminal of the mode control module; a first universal input/output terminal of the mode selection and PD power controller, a second universal input/output terminal of the mode selection and PD power controller, a third universal input/output terminal of the mode selection and PD power controller, a fourth universal input/output terminal of the mode selection and PD power controller, a fifth universal input/output terminal of the mode selection and PD power controller, a sixth universal input/output terminal of the mode selection and PD power controller, and a seventh universal input/output terminal of the mode selection and PD power controller jointly constitute a switch signal output terminal of the mode control module; and a ground terminal of the mode selection and PD power controller, a second terminal of the first capacitor, and a second terminal of the second capacitor are jointly connected to a power ground.

[0007] In one of the embodiments, the second direct current conversion module comprises:

a second buck-boost module connected to the charging and discharging management module and used to generate a fifth power supply according to the third power supply; and

a second voltage conversion module connected to the second buck-boost module and used to generate the fourth power supply for the fifth power supply.



[0008] In one of the embodiments, the mobile power supply circuit further comprises:

a third direct current conversion module connected to the charging and discharging management module and used to generate a seventh power supply according to the sixth power supply; and

a fourth connector connected to the third direct current conversion module and switching the seventh power supply,

wherein the charging and discharging management module is further used to generate the sixth power supply according to the second power supply.



[0009] In one of the embodiments, the third direct current conversion module comprises:

a third buck-boost module connected to the charging and discharging management module and used to generate an eighth power supply according to the sixth power supply; and

a third voltage conversion module connected to the third buck-boost module and used to generate the seventh power supply according to the eighth power supply.



[0010] In one of the embodiments, the first direct current conversion module comprises:

a first buck-boost module connected to the charging and discharging management module and used to generate a ninth power supply according to the second power supply or generate the second direct current power supply according to a fourth direct current power supply; and

a first voltage conversion module connected to the first buck-boost module and used to generate the fourth direct current power supply according to the first direct current power supply or generate the first power supply according to the ninth power supply.



[0011] In one of the embodiments, the video signal conversion module comprises a DP to HDMI conversion chip, a second crystal oscillator, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, and a ninth resistor,
wherein a first power supply terminal of the DP to HDMI conversion chip is connected to a twelfth power supply; a second power supply terminal of the DP to HDMI conversion chip is connected to a thirteenth power supply; a crystal oscillator input terminal of the DP to HDMI conversion chip is connected to a first terminal of the second crystal oscillator and a first terminal of the third capacitor; a crystal oscillator output terminal of the DP to HDMI conversion chip is connected to a second terminal of the second crystal oscillator and a first terminal of the fourth capacitor; a first positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the first resistor; a first negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the second resistor; a second positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the third resistor; a second negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the fourth resistor; a third positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the fifth resistor; a third negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the sixth resistor; a fourth positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the seventh resistor; a fourth negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the eighth resistor; a first positive electrode secondary video signal terminal of the DP to HDMI conversion chip, a first negative electrode secondary video signal terminal of the DP to HDMI conversion chip, a second terminal of the first resistor, a second terminal of the second resistor, a second terminal of the third resistor, a second terminal of the fourth resistor, a second terminal of the fifth resistor, a second terminal of the sixth resistor, a second terminal of the seventh resistor, and a second terminal of the eighth resistor jointly constitute a DP signal terminal of the video signal conversion module; an HDMI hot plug detection terminal of the DP to HDMI conversion chip, a first positive electrode HDMI signal terminal of the DP to HDMI conversion chip, a first negative electrode HDMI signal terminal of the DP to HDMI conversion chip, a second positive electrode HDMI signal terminal of the DP to HDMI conversion chip, a second negative electrode HDMI signal terminal of the DP to HDMI conversion chip, a third positive electrode HDMI signal terminal of the DP to HDMI conversion chip, a third negative electrode HDMI signal terminal of the DP to HDMI conversion chip, a positive electrode HDMI clock signal terminal of the DP to HDMI conversion chip, a negative electrode HDMI clock signal terminal of the DP to HDMI conversion chip, and a first terminal of the ninth resistor jointly constitute an HDMI signal terminal of the video signal conversion module; a second terminal of the ninth resistor is connected to a fifth power supply; and a ground terminal of the DP to HDMI conversion chip is connected to the power ground.

[0012] In one of the embodiments, the hub circuit further comprises:

a USB controller connected to the third connector and used to generate a plurality of second USB signals according to a first USB signal or generate the first USB signal according to the plurality of second USB signals; and

a plurality of USB connectors connected to the USB controller and used to switch the second USB signals,

wherein the third connector is further used to switch the first USB signal.



[0013] In one of the embodiments, the USB controller comprises a USB hub controller, a third crystal oscillator, a fifth capacitor, a sixth capacitor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor,
wherein a first power supply terminal VCC33 of the USB hub controller, a first terminal of the tenth resistor, and a first terminal of the sixteenth resistor are jointly connected to a sixth power supply; a second terminal of the sixteenth resistor is connected to a power supply detection terminal of the USB hub controller; a second terminal of the tenth resistor is connected to a first terminal of the eleventh resistor and an external power supply state terminal of the USB hub controller; a second power supply terminal of the USB hub controller, a first terminal of the twelfth resistor, and a first terminal of the thirteenth resistor are jointly connected to a seventh power supply; the first terminal of the twelfth resistor is connected to a power supply feedback terminal of the USB hub controller; the first terminal of the thirteenth resistor is connected to a power supply adjustment terminal of the USB hub controller; a crystal oscillator input terminal of the USB hub controller is connected to a first terminal of the third crystal oscillator and a first terminal of the fifth capacitor; a crystal oscillator output terminal of the USB hub controller is connected to a second terminal of the third crystal oscillator and a first terminal of the sixth capacitor; a USB2.0 UFP positive electrode signal terminal of the USB hub controller, a USB2.0 UFP negative electrode signal terminal of the USB hub controller, a USB3.1 UFP positive electrode signal receiving terminal of the USB hub controller, a USB3.1 UFP negative electrode signal receiving terminal of the USB hub controller, a USB3.1 UFP positive electrode signal transmitting terminal of the USB hub controller, and a USB3.1 UFP negative electrode signal transmitting terminal of the USB hub controller jointly constitute an upstream facing signal terminal of the USB controller; a first USB2.0 DFP positive electrode signal terminal of the USB hub controller, a first USB2.0 DFP negative electrode signal terminal of the USB hub controller, a first USB3.1 DFP positive electrode signal receiving terminal of the USB hub controller, a first USB3.1 DFP negative electrode signal receiving terminal of the USB hub controller, a first USB3.1 DFP positive electrode signal transmitting terminal of the USB hub controller, and a first USB3.1 DFP negative electrode signal transmitting terminal of the USB hub controller jointly constitute a first downstream facing signal terminal of the USB controller; a second USB2.0 DFP positive electrode signal terminal of the USB hub controller, a second USB2.0 DFP negative electrode signal terminal of the USB hub controller, a second USB3.1 DFP positive electrode signal receiving terminal of the USB hub controller, a second USB3.1 DFP negative electrode signal receiving terminal of the USB hub controller, a second USB3.1 DFP positive electrode signal transmitting terminal of the USB hub controller, and a second USB3.1 DFP negative electrode signal transmitting terminal of the USB hub controller jointly constitute a second downstream facing signal terminal of the USB controller; a power supply enable terminal of the USB hub controller is connected to a first terminal of the fifteenth resistor; an external resistor of the USB hub controller is connected to a first terminal of the fourteenth resistor; a second terminal of the fifth capacitor, a second terminal of the sixth capacitor, a second terminal of the fourteenth resistor, a second terminal of the fifteenth resistor, and a ground terminal of the USB hub controller are jointly connected to a power ground.

[0014] In the embodiments of the present invention, a mobile power supply circuit and a hub circuit are comprised, wherein the mobile power supply circuit comprises a first connector, a first direct current conversion module, a charging and discharging management module, a second direct current conversion module, and an electric core; and wherein the hub circuit comprises a power supply management module, a second connector, a video signal conversion module, and a third connector. Because the hub circuit is provided with the mobile power supply circuit, power is supplied by means of the mobile power supply circuit when the hub is not connected to a power adapter, thereby improving the convenience of the hub.

Brief description of the Drawings



[0015] In order to more clearly explain the technical invention in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description show merely some embodiments of the present invention, and those of ordinary skill in the art may still obtain other drawings according to the drawings without any creative effort.

FIG. 1 is a modular structure diagram of a hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention;

FIG. 2 is a modular structure diagram of a power supply management module in the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention;

FIG. 3 is a modular structure diagram of a second direct current conversion module in the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention;

FIG. 4 is another modular structure diagram of the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention;

FIG. 5 is a modular structure diagram of a third direct current conversion module in the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention;

FIG. 6 is a modular structure diagram of a first direct current conversion module in the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention;

FIG. 7 is another modular structure diagram of the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention; and

FIG. 8 is an exemplary circuit structure diagram of the hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention.


Detailed Description of Embodiments



[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] FIG. 1 shows a modular structure of a hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention, and in order to facilitate illustration, only portions related to this embodiment of the present invention are shown, which is described in detail as follows:
the above-mentioned hub in which the mobile power supply circuit is built is connected to a notebook computer 001 and a power adapter 002, and comprises the mobile power supply circuit and a hub circuit.

[0018] The mobile power supply circuit comprises a first connector 01, a first direct current conversion module 02, a charging and discharging management module 03, a second direct current conversion module 04, and an electric core 06.

[0019] The first connector 01 is used to switch a first direct current power supply output by the power adapter or a first power supply; the first direct current conversion module 02 is connected to the first connector 01 and used to generate a second direct current power supply according to the first direct current power supply or generate the first power supply according to a second power supply; the charging and discharging management module 03 is connected to the first direct current conversion module 02 and used to turn on or turn off the second direct current power supply or the second power supply; the second direct current conversion module 04 is connected to the charging and discharging management module 03 and used to generate a fourth power supply and a secondary power supply according to a third power supply; the charging and discharging management module 03 is further used to generate the third power supply according to the second power supply; and the electric core 06 is connected to the charging and discharging management module 03 and used to store electric energy or output the second power supply according to the second direct current power supply.

[0020] The hub circuit comprises a power supply management module 09, a second connector 10, a video signal conversion module 11, and a third connector 12.

[0021] The power supply management module 09 is connected to the second direct current conversion module 04 and used to turn on or turn off the fourth power supply according to the secondary power supply and a charging protocol; the second connector 10 is connected to the power supply management module 09 and used to switch a first video signal; the video signal conversion module 11 is connected to the second connector 10 and used to generate the first video signal according to a second video signal; and the third connector 12 is connected to the video signal conversion module 11 and the notebook computer 001 and used to switch the second video signal and the fourth power supply.

[0022] In specific implementation, the first connector and the third connector 12 may be Type-C females. The electric core 06 may be a lithium electric core. The power adapter 002 may be a PD power adapter. The second connector 10 may be an HDMI connector.

[0023] As shown in FIG. 2, the power supply management module 09 comprises a mode control module 091 and a power supply switch module 092.

[0024] The mode control module 091 is connected to the second direct current conversion module 04 and the third connector 12 and used to perform charging protocol communication and output a switch signal according to the secondary power supply; and the power supply switch module 092 is connected to the second direct current conversion module 04, the mode control module 091, and the third connector 12 and used to turn on or turn off the fourth power supply according to the switch signal.

[0025] In specific implementation, the mode control module 091 is used to perform PD3.0 charging protocol communication and output a switch signal according to a third direct current power supply to implement PD power supply management.

[0026] As shown in FIG. 3, the second direct current conversion module 04 comprises a second buck-boost module 041 and a second voltage conversion module 042.

[0027] The second buck-boost module 041 is connected to the charging and discharging management module 03 and used to generate a fifth power supply according to the third power supply; and the second voltage conversion module 042 is connected to the second buck-boost module 041 and used to generate the fourth power supply for the fifth power supply.

[0028] In specific implementation, the second voltage conversion module may comprise a PD3.0 protocol chip, so as to convert the fifth power supply into a fourth power supply complying with a PD3.0 protocol.

[0029] As shown in FIG. 4, the mobile power supply circuit further comprises a third direct current conversion module 13 and a fourth connector 14.

[0030] The third direct current conversion module 13 is connected to the charging and discharging management module 03 and used to generate a seventh power supply according to a sixth power supply; and the fourth connector 14 is connected to the third direct current conversion module 13 and switches the seventh power supply. The charging and discharging management module 03 is further used to generate the sixth power supply according to the second power supply.

[0031] The fourth connector 14 may be a USB female.

[0032] As shown in FIG. 5, the third direct current conversion module 13 comprises a third buck-boost module 131 and a third voltage conversion module 132.

[0033] The third buck-boost module 131 is connected to the charging and discharging management module 03 and used to generate an eighth power supply according to the sixth power supply; and the third voltage conversion module 132 is connected to the third buck-boost module 131 and used to generate the seventh power supply according to the eighth power supply.

[0034] In specific implementation, the third voltage conversion module may comprise a QC3.0 protocol chip, so as to convert the eighth power supply into a seventh power supply complying with a QC3.0 protocol.

[0035] As shown in FIG. 6, the first direct current conversion module 02 comprises a first buck-boost module 021 and a first voltage conversion module 022.

[0036] The first buck-boost module 021 is connected to the charging and discharging management module 03 and used to generate a ninth power supply according to the second power supply or generate the second direct current power supply according to a fourth direct current power supply; and the first voltage conversion module 022 is connected to the first buck-boost module 021 and used to generate the fourth direct current power supply according to the first direct current power supply or generate the first power supply according to the ninth power supply.

[0037] In specific implementation, the first voltage conversion module may comprise a PD3.0 protocol chip, so as to perform PD3.0 protocol conversion on the first direct current power supply and the ninth power supply.

[0038] As shown in FIG. 7, the hub circuit further comprises a USB controller 15 and a plurality of USB connectors 16i.

[0039] The USB controller 15 is connected to the third connector 12 and used to generate a plurality of second USB signals according to a first USB signal or generate the first USB signal according to the plurality of second USB signals; the plurality of USB connectors 16i are connected to the USB controller 15 and used to switch the second USB signals; and the third connector 12 is further used to switch the first USB signal.

[0040] The hub circuit further comprises the USB controller 15 and the plurality of USB connectors 16i, so that the hub circuit may be externally connected to a plurality of USB devices to implement data communication between the USB devices and the notebook computer.

[0041] FIG. 8 shows an exemplary circuit structure of a hub in which a mobile power supply circuit is built, provided in an embodiment of the present invention, and in order to facilitate illustration, only portions related to this embodiment of the present invention are shown, which is described in detail as follows:
the mode control module 091 comprises a mode selection and power delivery (PD) power controller U1, a first crystal oscillator X1, a first capacitor C1, and a second capacitor C2.

[0042] A first power supply terminal VDD33 of the mode selection and PD power controller U1 is connected to a tenth power supply VAA; a second power supply terminal VDD5V of the mode selection and PD power controller U1 is connected to an eleventh power supply VBB; a crystal oscillator input terminal SSXI of the mode selection and PD power controller U1 is connected to a first terminal of the first crystal oscillator X1 and a first terminal of the first capacitor C1; a crystal oscillator output terminal SSXO of the mode selection and PD power controller U1 is connected to a second terminal of the first crystal oscillator X1 and a first terminal of the second capacitor C2; a first charging upstream facing port (UFP) configuration terminal CC1U of the mode selection and PD power controller U1 and a second charging UFP configuration terminal CC2U of the mode selection and PD power controller U1 jointly constitute an upstream facing port configuration terminal of the mode control module 091; a first charging dual role port (DRP) configuration terminal CC1D of the mode selection and PD power controller U1 and a second charging DRP configuration terminal CC2D of the mode selection and PD power controller U1 jointly constitute a dual role port configuration terminal of the mode control module 091; a first universal input/output terminal GPIO1 of the mode selection and PD power controller U1, a second universal input/output terminal GPIO2 of the mode selection and PD power controller U1, a third universal input/output terminal GPIO3 of the mode selection and PD power controller U1, a fourth universal input/output terminal GPIO5 of the mode selection and PD power controller U1, a fifth universal input/output terminal GPIO6 of the mode selection and PD power controller U1, a sixth universal input/output terminal GPIO8 of the mode selection and PD power controller U1, and a seventh universal input/output terminal GPIO9 of the mode selection and PD power controller U1 jointly constitute a switch signal output terminal of the mode control module 091; and a ground terminal GND of the mode selection and PD power controller U1, a second terminal of the first capacitor C1, and a second terminal of the second capacitor C2 are jointly connected to a power ground.

[0043] The video signal conversion module 11 comprises a display port (DP) to high definition multimedia interface (HDMI) conversion chip U2, a second crystal oscillator X2, a third capacitor C3, a fourth capacitor C4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9.

[0044] A first power supply terminal VDD33 of the DP to HDMI conversion chip U2 is connected to a twelfth power supply VCC; a second power supply terminal VDD12 of the DP to HDMI conversion chip U2 is connected to a thirteenth power supply VDD; a crystal oscillator input terminal SSXI of the DP to HDMI conversion chip U2 is connected to a first terminal of the second crystal oscillator X2 and a first terminal of the third capacitor C3; a crystal oscillator output terminal SSXO of the DP to HDMI conversion chip U2 is connected to a second terminal of the second crystal oscillator X2 and a first terminal of the fourth capacitor C4; a first positive electrode DP signal DRX0P of the DP to HDMI conversion chip U2 is connected to a first terminal of the first resistor R1; a first negative electrode DP signal DRX0N of the DP to HDMI conversion chip U2 is connected to a first terminal of the second resistor R2; a second positive electrode DP signal DRX1P of the DP to HDMI conversion chip U2 is connected to a first terminal of the third resistor R3; a second negative electrode DP signal DRX1N of the DP to HDMI conversion chip U2 is connected to a first terminal of the fourth resistor R4; a third positive electrode DP signal DRX2P of the DP to HDMI conversion chip U2 is connected to a first terminal of the fifth resistor R5; a third negative electrode DP signal DRX2N of the DP to HDMI conversion chip U2 is connected to a first terminal of the sixth resistor R6; a fourth positive electrode DP signal DRX3P of the DP to HDMI conversion chip U2 is connected to a first terminal of the seventh resistor R7; a fourth negative electrode DP signal DRX3N of the DP to HDMI conversion chip U2 is connected to a first terminal of the eighth resistor R8; a first positive electrode secondary video signal terminal AUXDCP of the DP to HDMI conversion chip U2, a first negative electrode secondary video signal terminal AUXDCN of the DP to HDMI conversion chip U2, a second terminal of the first resistor R1, a second terminal of the second resistor R2, a second terminal of the third resistor R3, a second terminal of the fourth resistor R4, a second terminal of the fifth resistor R5, a second terminal of the sixth resistor R6, a second terminal of the seventh resistor R7, and a second terminal of the eighth resistor R8 jointly constitute a DP signal terminal of the video signal conversion module 11; an HDMI hot plug detection terminal HDMI_HPD of the DP to HDMI conversion chip U2, a first positive electrode HDMI signal terminal HDMID0P of the DP to HDMI conversion chip U2, a first negative electrode HDMI signal terminal HDMID0N of the DP to HDMI conversion chip U2, a second positive electrode HDMI signal terminal HDMID1P of the DP to HDMI conversion chip U2, a second negative electrode HDMI signal terminal HDMID1N of the DP to HDMI conversion chip U2, a third positive electrode HDMI signal terminal HDMID2P of the DP to HDMI conversion chip U2, a third negative electrode HDMI signal terminal HDMID2N of the DP to HDMI conversion chip U2, a positive electrode HDMI clock signal terminal HDMICKP of the DP to HDMI conversion chip U2, a negative electrode HDMI clock signal terminal HDMICKN of the DP to HDMI conversion chip U2, and a first terminal of the ninth resistor R9 jointly constitute an HDMI signal terminal of the video signal conversion module 11; a second terminal of the ninth resistor R9 is connected to a fifth power supply VEE; and a ground terminal GND of the DP to HDMI conversion chip U2 is connected to the power ground.

[0045] The USB controller 15 comprises a USB hub controller U3, a third crystal oscillator X3, a fifth capacitor C5, a sixth capacitor C6, s tenth resistor R10, an eleventh resistor R11 , a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, and a sixteenth resistor R16.

[0046] A first power supply terminal VCC33 of the USB hub controller U3, a first terminal of the tenth resistor R10, and a first terminal of the sixteenth resistor R16 are jointly connected to a sixth power supply VFF; a second terminal of the sixteenth resistor R16 is connected to a power supply detection terminal USBOC of the USB hub controller U3; a second terminal of the tenth resistor R10 is connected to a first terminal of the eleventh resistor R11 and an external power supply state terminal EXTPWRON of the USB hub controller U3; a second power supply terminal VCC11 of the USB hub controller U3, a first terminal of the twelfth resistor R12, and a first terminal of the thirteenth resistor R13 are jointly connected to a seventh power supply VGG; the first terminal of the twelfth resistor R12 is connected to a power supply feedback terminal VCC11 FB of the USB hub controller U3; the first terminal of the thirteenth resistor R13 is connected to a power supply adjustment terminal LX of the USB hub controller U3; a crystal oscillator input terminal SSXI of the USB hub controller U3 is connected to a first terminal of the third crystal oscillator X3 and a first terminal of the fifth capacitor C5; a crystal oscillator output terminal SSXO of the USB hub controller U3 is connected to a second terminal of the third crystal oscillator X3 and a first terminal of the sixth capacitor C5; a USB2.0 UFP positive electrode signal terminal HSD0+ of the USB hub controller U3, a USB2.0 UFP negative electrode signal terminal HSD0- of the USB hub controller U3, a USB3.1 UFP positive electrode signal receiving terminal SSRX0+ of the USB hub controller U3, a USB3.1 UFP negative electrode signal receiving terminal SSRX0- of the USB hub controller U3, a USB3.1 UFP positive electrode signal transmitting terminal SSTX0+ of the USB hub controller U3, and a USB3.1 UFP negative electrode signal transmitting terminal SSTX0- of the USB hub controller U3 jointly constitute an upstream facing signal terminal of the USB controller 15; a first USB2.0 downstream facing port (DFP) positive electrode signal terminal HSD3+ of the USB hub controller U3, a first USB2.0 DFP negative electrode signal terminal HSD3- of the USB hub controller U3, a first USB3.1 DFP positive electrode signal receiving terminal SSRX3+ of the USB hub controller U3, a first USB3.1 DFP negative electrode signal receiving terminal SSRX3-of the USB hub controller U3, a first USB3.1 DFP positive electrode signal transmitting terminal SSTX3+ of the USB hub controller U3, and a first USB3.1 DFP negative electrode signal transmitting terminal SSTX3- of the USB hub controller U3 jointly constitute a first downstream facing signal terminal of the USB controller 15; a second USB2.0 downstream facing port (DFP) positive electrode signal terminal HSD3+ of the USB hub controller U3, a second USB2.0 DFP negative electrode signal terminal HSD3- of the USB hub controller U3, a second USB3.1 DFP positive electrode signal receiving terminal SSRX3+ of the USB hub controller U3, a second USB3.1 DFP negative electrode signal receiving terminal SSRX3- of the USB hub controller U3, a second USB3.1 DFP positive electrode signal transmitting terminal SSTX3+ of the USB hub controller U3, and a second USB3.1 DFP negative electrode signal transmitting terminal SSTX3-of the USB hub controller U3 jointly constitute a second downstream facing signal terminal of the USB controller 15; a power supply enable terminal USBPE of the USB hub controller U3 is connected to a first terminal of the fifteenth resistor R15; an external resistor SSREXT of the USB hub controller U3 is connected to a first terminal of the fourteenth resistor R14; and a second terminal of the fifth capacitor C5, a second terminal of the sixth capacitor C6, a second terminal of the fourteenth resistor R14, a second terminal of the fifteenth resistor R15, and a ground terminal GND of the USB hub controller U3 are jointly connected to a power ground.

[0047] Because the USB controller 15 is a USB3.1 controller and supports a USB3.0 protocol and a USB2.0 protocol, the data transmission rate is enhanced.

[0048] What is shown in FIG. 8 will be further described below with reference to a working principle.

[0049] In a specific implementation process,
the second direct current conversion module 04 in the mobile power supply circuit outputs the fourth power supply; the first charging UFP configuration terminal CC1U of the mode selection and PD power controller U1 and the second charging UFP configuration terminal CC2U of the mode selection and PD power controller U1 perform charging protocol communication with the notebook computer 001 by means of the third connector 12; the first charging DRP configuration terminal CC1D of the mode selection and PD power controller U1 and the second charging DRP configuration terminal CC2D of the mode selection and PD power controller U1 perform charging protocol communication with the second direct current conversion module 04 in the mobile power supply circuit; and the mode selection and PD power controller U1 outputs a switch signal according to a result of the charging protocol communication, so that the power supply switch module 092 turns on or turns off the fourth power supply according to the switch signal.

[0050] The third connector 12 switches the fourth power supply.

[0051] The third connector 12 switches a first video signal; a first positive electrode DP signal DRX0P of the DP to HDMI conversion chip U2, a first negative electrode DP signal DRX0N of the DP to HDMI conversion chip U2, a second positive electrode DP signal DRX1 P of the DP to HDMI conversion chip U2, a second negative electrode DP signal DRX1N of the DP to HDMI conversion chip U2, a third positive electrode DP signal DRX2P of the DP to HDMI conversion chip U2, a third negative electrode DP signal DRX2N of the DP to HDMI conversion chip U2, a fourth positive electrode DP signal DRX3P of the DP to HDMI conversion chip U2, a fourth negative electrode DP signal DRX3N of the DP to HDMI conversion chip U2, a first positive electrode secondary video signal terminal AUXDCP of the DP to HDMI conversion chip U2, and a first negative electrode secondary video signal terminal AUXDCN of the DP to HDMI conversion chip U2 accept a second video signal; the DP to HDMI conversion chip U2 generates the first video signal according to the second video signal, and the first video signal is sent to the second connector 10 by means of an HDMI signal terminal of the video signal conversion module 11; and the second connector 10 switches the first video signal.

[0052] The plurality of USB connectors 161 switch second USB signals; and the third connector 12 further switches a first USB signal. The upstream facing signal terminal of the USB controller 15 receives or sends a first USB signal; the first downstream facing signal terminal of the USB controller 15 and the second downstream facing signal terminal of the USB controller 15 receive or send a second USB signal; and the USB controller 15 and the USB hub controller U3 generate a plurality of second USB signals according to the first USB signal or generate the first USB signal according to the plurality of second USB signals.

[0053] In the embodiments of the present invention, a mobile power supply circuit and a hub circuit are comprised, wherein the mobile power supply circuit comprises a first connector, a first direct current conversion module, a charging and discharging management module, a second direct current conversion module, and an electric core; and wherein the hub circuit comprises a power supply management module, a second connector, a video signal conversion module, and a third connector. Because the hub circuit is provided with the mobile power supply circuit, power is supplied by means of the mobile power supply circuit when the hub is not connected to a power adapter, thereby improving the convenience of the hub circuit.

[0054] The above-mentioned descriptions are merely preferred embodiments of the present invention but not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present solution.


Claims

1. A hub in which a mobile power supply circuit is built, the hub being connected to a notebook computer and a power adapter, characterized in that the hub in which the mobile power supply circuit is built comprises the mobile power supply circuit and a hub circuit,
wherein the mobile power supply circuit comprises:

a first connector used to switch a first direct current power supply output by the power adapter or a first power supply;

a first direct current conversion module connected to the first connector and used to generate a second direct current power supply according to the first direct current power supply or generate the first power supply according to a second power supply;

a charging and discharging management module connected to the first direct current conversion module and used to turn on or turn off the second direct current power supply or the second power supply;

a second direct current conversion module connected to the charging and discharging management module and used to generate a fourth power supply and a secondary power supply according to a third power supply,

wherein the charging and discharging management module is further used to generate the third power supply according to the second power supply; and

an electric core connected to the charging and discharging management module and used to store electric energy or output the second power supply according to the second direct current power supply;

and wherein the hub circuit comprises:

a power supply management module connected to the second direct current conversion module and used to turn on or turn off the fourth power supply according to the secondary power supply and a charging protocol;

a second connector connected to the power supply management module and used to switch a first video signal;

a video signal conversion module connected to the second connector and used to generate the first video signal according to a second video signal; and

a third connector connected to the video signal conversion module and the notebook computer and used to switch the second video signal and the fourth power supply.


 
2. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the power supply management module comprises:

a mode control module connected to the second direct current conversion module and the third connector and used to perform charging protocol communication and output a switch signal according to the secondary power supply; and

a power supply switch module connected to the second direct current conversion module, the mode control module, and the third connector and used to turn on or turn off the fourth power supply according to the switch signal.


 
3. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the mode control module comprises a mode selection and PD power controller, a first crystal oscillator, a first capacitor, and a second capacitor,
wherein a first power supply terminal of the mode selection and PD power controller is connected to a tenth power supply; a second power supply terminal of the mode selection and PD power controller is connected to an eleventh power supply; a crystal oscillator input terminal of the mode selection and PD power controller is connected to a first terminal of the first crystal oscillator and a first terminal of the first capacitor; a crystal oscillator output terminal of the mode selection and PD power controller is connected to a second terminal of the first crystal oscillator and a first terminal of the second capacitor; a first charging UFP configuration terminal of the mode selection and PD power controller and a second charging UFP configuration terminal of the mode selection and PD power controller jointly constitute an upstream facing port configuration terminal of the mode control module; a first charging DRP configuration terminal of the mode selection and PD power controller and a second charging DRP configuration terminal of the mode selection and PD power controller jointly constitute a dual role port configuration terminal of the mode control module; a first universal input/output terminal of the mode selection and PD power controller, a second universal input/output terminal of the mode selection and PD power controller, a third universal input/output terminal of the mode selection and PD power controller, a fourth universal input/output terminal of the mode selection and PD power controller, a fifth universal input/output terminal of the mode selection and PD power controller, a sixth universal input/output terminal of the mode selection and PD power controller, and a seventh universal input/output terminal of the mode selection and PD power controller jointly constitute a switch signal output terminal of the mode control module; and a ground terminal of the mode selection and PD power controller, a second terminal of the first capacitor, and a second terminal of the second capacitor are jointly connected to a power ground.
 
4. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the second direct current conversion module comprises:

a second buck-boost module connected to the charging and discharging management module and used to generate a fifth power supply according to the third power supply; and

a second voltage conversion module connected to the second buck-boost module and used to generate the fourth power supply for the fifth power supply.


 
5. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the mobile power supply circuit further comprises:

a third direct current conversion module connected to the charging and discharging management module and used to generate a seventh power supply according to the sixth power supply; and

a fourth connector connected to the third direct current conversion module and switching the seventh power supply,

wherein the charging and discharging management module is further used to generate the sixth power supply according to the second power supply.


 
6. The hub in which the mobile power supply circuit is built of claim 5, characterized in that the third direct current conversion module comprises:

a third buck-boost module connected to the charging and discharging management module and used to generate an eighth power supply according to the sixth power supply; and

a third voltage conversion module connected to the third buck-boost module and used to generate the seventh power supply according to the eighth power supply.


 
7. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the first direct current conversion module comprises:

a first buck-boost module connected to the charging and discharging management module and used to generate a ninth power supply according to the second power supply or generate the second direct current power supply according to a fourth direct current power supply; and

a first voltage conversion module connected to the first buck-boost module and used to generate the fourth direct current power supply according to the first direct current power supply or generate the first power supply according to the ninth power supply.


 
8. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the video signal conversion module comprises a DP to HDMI conversion chip, a second crystal oscillator, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, and a ninth resistor,
wherein a first power supply terminal of the DP to HDMI conversion chip is connected to a twelfth power supply; a second power supply terminal of the DP to HDMI conversion chip is connected to a thirteenth power supply; a crystal oscillator input terminal of the DP to HDMI conversion chip is connected to a first terminal of the second crystal oscillator and a first terminal of the third capacitor; a crystal oscillator output terminal of the DP to HDMI conversion chip is connected to a second terminal of the second crystal oscillator and a first terminal of the fourth capacitor; a first positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the first resistor; a first negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the second resistor; a second positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the third resistor; a second negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the fourth resistor; a third positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the fifth resistor; a third negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the sixth resistor; a fourth positive electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the seventh resistor; a fourth negative electrode DP signal of the DP to HDMI conversion chip is connected to a first terminal of the eighth resistor; a first positive electrode secondary video signal terminal of the DP to HDMI conversion chip, a first negative electrode secondary video signal terminal of the DP to HDMI conversion chip, a second terminal of the first resistor, a second terminal of the second resistor, a second terminal of the third resistor, a second terminal of the fourth resistor, a second terminal of the fifth resistor, a second terminal of the sixth resistor, a second terminal of the seventh resistor, and a second terminal of the eighth resistor jointly constitute a DP signal terminal of the video signal conversion module; an HDMI hot plug detection terminal of the DP to HDMI conversion chip, a first positive electrode HDMI signal terminal of the DP to HDMI conversion chip, a first negative electrode HDMI signal terminal of the DP to HDMI conversion chip, a second positive electrode HDMI signal terminal of the DP to HDMI conversion chip, a second negative electrode HDMI signal terminal of the DP to HDMI conversion chip, a third positive electrode HDMI signal terminal of the DP to HDMI conversion chip, a third negative electrode HDMI signal terminal of the DP to HDMI conversion chip, a positive electrode HDMI clock signal terminal of the DP to HDMI conversion chip, a negative electrode HDMI clock signal terminal of the DP to HDMI conversion chip, and a first terminal of the ninth resistor jointly constitute an HDMI signal terminal of the video signal conversion module; a second terminal of the ninth resistor is connected to a fifth power supply; and a ground terminal of the DP to HDMI conversion chip is connected to the power ground.
 
9. The hub in which the mobile power supply circuit is built of claim 1, characterized in that the hub circuit further comprises:

a USB controller connected to the third connector and used to generate a plurality of second USB signals according to a first USB signal or generate the first USB signal according to the plurality of second USB signals; and

a plurality of USB connectors connected to the USB controller and used to switch the second USB signals,

wherein the third connector is further used to switch the first USB signal.


 
10. The hub in which the mobile power supply circuit is built of claim 9, characterized in that the USB controller comprises a USB hub controller, a third crystal oscillator, a fifth capacitor, a sixth capacitor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor,
wherein a first power supply terminal VCC33 of the USB hub controller, a first terminal of the tenth resistor, and a first terminal of the sixteenth resistor are jointly connected to a sixth power supply; a second terminal of the sixteenth resistor is connected to a power supply detection terminal of the USB hub controller; a second terminal of the tenth resistor is connected to a first terminal of the eleventh resistor and an external power supply state terminal of the USB hub controller; a second power supply terminal of the USB hub controller, a first terminal of the twelfth resistor, and a first terminal of the thirteenth resistor are jointly connected to a seventh power supply; the first terminal of the twelfth resistor is connected to a power supply feedback terminal of the USB hub controller; the first terminal of the thirteenth resistor is connected to a power supply adjustment terminal of the USB hub controller; a crystal oscillator input terminal of the USB hub controller is connected to a first terminal of the third crystal oscillator and a first terminal of the fifth capacitor; a crystal oscillator output terminal of the USB hub controller is connected to a second terminal of the third crystal oscillator and a first terminal of the sixth capacitor; a USB2.0 UFP positive electrode signal terminal of the USB hub controller, a USB2.0 UFP negative electrode signal terminal of the USB hub controller, a USB3.1 UFP positive electrode signal receiving terminal of the USB hub controller, a USB3.1 UFP negative electrode signal receiving terminal of the USB hub controller, a USB3.1 UFP positive electrode signal transmitting terminal of the USB hub controller, and a USB3.1 UFP negative electrode signal transmitting terminal of the USB hub controller jointly constitute an upstream facing signal terminal of the USB controller; a first USB2.0 DFP positive electrode signal terminal of the USB hub controller, a first USB2.0 DFP negative electrode signal terminal of the USB hub controller, a first USB3.1 DFP positive electrode signal receiving terminal of the USB hub controller, a first USB3.1 DFP negative electrode signal receiving terminal of the USB hub controller, a first USB3.1 DFP positive electrode signal transmitting terminal of the USB hub controller, and a first USB3.1 DFP negative electrode signal transmitting terminal of the USB hub controller jointly constitute a first downstream facing signal terminal of the USB controller; a second USB2.0 DFP positive electrode signal terminal of the USB hub controller, a second USB2.0 DFP negative electrode signal terminal of the USB hub controller, a second USB3.1 DFP positive electrode signal receiving terminal of the USB hub controller, a second USB3.1 DFP negative electrode signal receiving terminal of the USB hub controller, a second USB3.1 DFP positive electrode signal transmitting terminal of the USB hub controller, and a second USB3.1 DFP negative electrode signal transmitting terminal of the USB hub controller jointly constitute a second downstream facing signal terminal of the USB controller; a power supply enable terminal of the USB hub controller is connected to a first terminal of the fifteenth resistor; an external resistor of the USB hub controller is connected to a first terminal of the fourteenth resistor; a second terminal of the fifth capacitor, a second terminal of the sixth capacitor, a second terminal of the fourteenth resistor, a second terminal of the fifteenth resistor, and a ground terminal of the USB hub controller are jointly connected to a power ground.
 




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