US 12,107,438 B2
Power receiving device
Hideki Seki, Kiyosu (JP); Shinichiro Fuki, Kiyosu (JP); and Teppei Yamakoshi, Kiyosu (JP)
Assigned to TOYODA GOSEI CO., LTD., Aichi-pref. (JP)
Filed by TOYODA GOSEI CO., LTD., Kiyosu (JP)
Filed on Feb. 22, 2023, as Appl. No. 18/172,474.
Claims priority of application No. 2022-031881 (JP), filed on Mar. 2, 2022.
Prior Publication US 2023/0283113 A1, Sep. 7, 2023
Int. Cl. H02J 50/27 (2016.01); H02J 7/00 (2006.01)
CPC H02J 50/27 (2016.02) [H02J 7/007192 (2020.01); H02J 2207/20 (2020.01)] 4 Claims
OG exemplary drawing
 
1. A power receiving device used in radio wave wireless power supply, the power receiving device comprising:
a power receiving antenna that is configured to receive radio waves for supplying power;
a rectifier circuit that includes a rectifier diode and is configured to convert radio waves received by the power receiving antenna into a DC power; and
a bias circuit that is configured to apply a DC bias to the rectifier diode, wherein:
the bias circuit includes a voltage dividing resistance circuit that includes a first resistor and a second resistor,
the first resistor connects a power source of the rectifier circuit and an anode of the rectifier diode to each other, and
the second resistor connects a ground of the rectifier circuit and the anode of the rectifier diode to each other.