US 12,149,065 B2
Over voltage protection for a wireless power transfer system
Kapil Jha, Bangalore (IN); Arvind Kumar Tiwari, Bangalore (IN); Yash Veer Singh, Bangalore (IN); and Olive Ray, Bangalore (IN)
Assigned to General Intellectual Property Licensing, LLC, Niskayuna, NY (US)
Filed by GE Intellectual Property Licensing, LLC, Niskayuna, NY (US)
Filed on May 27, 2020, as Appl. No. 16/884,338.
Application 16/884,338 is a continuation of application No. 15/717,855, filed on Sep. 27, 2017, granted, now 10,700,510.
Claims priority of application No. 201641033404 (IN), filed on Sep. 30, 2016.
Prior Publication US 2020/0287375 A1, Sep. 10, 2020
Int. Cl. H02H 3/20 (2006.01); H02H 1/00 (2006.01); H02H 7/22 (2006.01); H02J 50/10 (2016.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); H02M 3/335 (2006.01)
CPC H02H 3/20 (2013.01) [H02H 1/0007 (2013.01); H02H 7/22 (2013.01); H02J 50/10 (2016.02); H02J 50/80 (2016.02); H02M 3/335 (2013.01); H02J 50/12 (2016.02); H02M 3/33576 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An apparatus for receiving wireless power, comprising:
a secondary coil configured to wirelessly receive an induced power from a primary coil of a contactless power transfer unit;
a converting unit configured to convert the induced power from an AC voltage to an output power having an output DC voltage and provide the output power to an electric load;
a transceiver configured to communicate a voltage signal to a corresponding transceiver of the contactless power transfer unit, the voltage signal representative of the output DC voltage across the electric load; and
a switching unit coupled in an electrical path between the secondary coil and the electric load, the switching unit configured to:
regulate the output DC voltage when the output DC voltage is above a voltage reference value and below a second threshold value, and
decouple the electric load to protect one or more components of the apparatus from over voltage damage and transmit, via the transceiver, a signal to the corresponding transceiver of the contactless power transfer unit indicating the decoupling of the electric load when the output DC voltage exceeds a first threshold value greater than the second threshold value.