EP 3741190 A1 20201125 - RIPPLE SUPPRESSION CIRCUIT, CONTROLLING METHOD AND DRIVING EQUIPMENT
Title (en)
RIPPLE SUPPRESSION CIRCUIT, CONTROLLING METHOD AND DRIVING EQUIPMENT
Title (de)
SCHALTUNG ZUR UNTERDRÜCKUNG VON WELLIGKEIT, STEUERVERFAHREN UND ANTRIEBSVORRICHTUNG
Title (fr)
CIRCUIT DE SUPPRESSION D'ONDULATIONS, PROCÉDÉ DE COMMANDE ET ÉQUIPEMENT D'ACTIVATION
Publication
Application
Priority
CN 2018077508 W 20180228
Abstract (en)
[origin: WO2019165589A1] A ripple suppression circuit, a controlling method and a driving equipment. The ripple suppression circuit includes: a first input port and a second input port, configured to receive an input signal; a first output port and a second output port, configured to output an output signal, the second input port connects with the second output port; at least one capacitor, configured to connect between the first input port and the second input port; a main transistor, configured to connect between the first input port and the first output port, and suppress ripples in the input signal; and a protection circuit, configured to connect between the first input port and the first output port, the protection circuit connects the first input port with the first output port when there is a short circuit between the first output port and the second output port. Therefore, the main transistor can be protected.
IPC 8 full level
H05B 45/50 (2022.01); H05B 45/59 (2022.01)
CPC (source: EP US)
H05B 45/36 (2020.01 - EP US); H05B 45/3725 (2020.01 - EP US); H05B 45/50 (2020.01 - EP US); H05B 45/59 (2022.01 - EP US); H05B 47/10 (2020.01 - EP US); H05B 47/20 (2020.01 - EP US); Y02B 20/30 (2013.01 - EP)
Designated contracting state (EPC)
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 state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019165589 A1 20190906; CN 111742618 A 20201002; EP 3741190 A1 20201125; EP 3741190 A4 20210901
DOCDB simple family (application)
CN 2018077508 W 20180228; CN 201880089858 A 20180228; EP 18907985 A 20180228