US 12,237,694 B2
Power reception device and non-contact power transmission system
Ryosuke Ikemura, Susono (JP); Shogo Tsuge, Fuji (JP); Masato Maemura, Nisshin (JP); and Toshiya Hashimoto, Miyoshi (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Sep. 21, 2023, as Appl. No. 18/471,387.
Claims priority of application No. 2022-152730 (JP), filed on Sep. 26, 2022.
Prior Publication US 2024/0106275 A1, Mar. 28, 2024
Int. Cl. H02J 50/12 (2016.01)
CPC H02J 50/12 (2016.02) 4 Claims
OG exemplary drawing
 
1. A power reception device, comprising:
a power reception coil that receives power transmitted from a power transmission coil in a non-contact manner; and
a control device that executes a short-circuit mode in which a plurality of switching elements provided between the power reception coil and a load are caused to perform switching operations to short-circuit between output terminals of the power reception coil, wherein
when a phase of a current and a phase of a voltage in the power reception device are deviated from each other, the control device sets switching timings of the switching elements to the short-circuit mode in a manner that the phase of the voltage is shifted in a direction in which a power factor of power supplied to the load is deteriorated.