EP 4143948 A4 20240724 - WIRELESS POWER TRANSMITTERS AND ASSOCIATED BASE STATIONS FOR TRANSMITTING POWER AT EXTENDED SEPARATION DISTANCES
Title (en)
WIRELESS POWER TRANSMITTERS AND ASSOCIATED BASE STATIONS FOR TRANSMITTING POWER AT EXTENDED SEPARATION DISTANCES
Title (de)
DRAHTLOSE STROMSENDER UND ZUGEHÖRIGE BASISSTATIONEN ZUR ÜBERTRAGUNG VON STROM IN ERWEITERTEN TRENNABSTÄNDEN
Title (fr)
ÉMETTEURS D'ÉNERGIE SANS FIL ET STATIONS DE BASE ASSOCIÉES SERVANT À TRANSMETTRE DE L'ÉNERGIE À DE LONGUES DISTANCES DE SÉPARATION
Publication
Application
Priority
- US 202016863682 A 20200430
- US 202016863691 A 20200430
- US 202016863698 A 20200430
- US 202016863703 A 20200430
- US 202016863706 A 20200430
- US 202016863710 A 20200430
- US 2021030315 W 20210430
Abstract (en)
[origin: WO2021222843A1] A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face. The power transmitter further includes a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
IPC 8 full level
H02J 50/10 (2016.01); H01F 27/26 (2006.01); H01F 27/28 (2006.01); H01F 27/36 (2006.01); H01F 38/14 (2006.01); H02J 50/00 (2016.01); H02J 50/12 (2016.01); H02J 50/70 (2016.01); H02J 50/80 (2016.01); H04B 5/00 (2024.01); H04B 5/43 (2024.01); H04B 5/79 (2024.01)
CPC (source: EP)
H01F 27/2823 (2013.01); H01F 27/366 (2020.08); H01F 38/14 (2013.01); H02J 50/12 (2016.02); H02J 50/70 (2016.02); H02J 50/80 (2016.02); H04B 5/43 (2024.01); H04B 5/79 (2024.01)
Citation (search report)
- [Y] WO 2019148070 A2 20190801 - INDIGO TECH INC [US], et al
- [Y] US 2006209487 A1 20060921 - SCHMIDT JOSEF [DE], et al
- [A] US 2017331335 A1 20171116 - BROOKS ROBERT C [US], et al
- [IY] US 2017310117 A1 20171026 - NIRANTARE PRASANNA SHARADCHANDRA [IN], et al
- See also references of WO 2021222843A1
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
DOCDB simple family (publication)
WO 2021222843 A1 20211104; CN 115699513 A 20230203; EP 4143948 A1 20230308; EP 4143948 A4 20240724
DOCDB simple family (application)
US 2021030315 W 20210430; CN 202180036348 A 20210430; EP 21797787 A 20210430