Wireless power receiving device
First Claim
1. A wireless power receiving device comprising:
- a power receiving unit configured to wirelessly receive power from a power transmitting unit of a power transmitting device;
a rectifier circuit configured to rectify the power received by the power receiving unit and output the rectified power to a power storage device;
a charging relay provided between the rectifier circuit and the power storage device;
a voltage sensor configured to sense a voltage on a power line between the power receiving unit and the rectifier circuit; and
a controller configured to wirelessly communicate with the power transmitting device via a communication device,the controller being configured to, after wireless communication with the power transmitting device is established before a power transmission request signal as a signal for requesting the power transmitting device to transmit power is output to the power transmitting device, close the charging relay, and also perform a short-circuit determination process, by using a value of a voltage sensed by the voltage sensor with the charging relay closed, to determine whether the rectifier circuit has a short circuit fault.
1 Assignment
0 Petitions
Accused Products
Abstract
A power receiving device includes: a power receiving unit configured to wirelessly receive power from a power transmitting unit of a power transmitting device; a rectifier circuit; a charging relay provided between the rectifier circuit and the power storage device; a voltage sensor configured to sense a voltage applied from the power receiving unit to the rectifier circuit; and a charging ECU configured to wirelessly communicate with the power transmitting device via a communication device. After wireless communication with the power transmitting device is established before a power request is output to the power transmitting device, the charging ECU closes the charging relay and also performs a short-circuit determination process, by using a value of a voltage sensed by the voltage sensor with the charging relay closed, to determine whether the rectifier circuit has a short circuit fault.
-
Citations
3 Claims
-
1. A wireless power receiving device comprising:
-
a power receiving unit configured to wirelessly receive power from a power transmitting unit of a power transmitting device; a rectifier circuit configured to rectify the power received by the power receiving unit and output the rectified power to a power storage device; a charging relay provided between the rectifier circuit and the power storage device; a voltage sensor configured to sense a voltage on a power line between the power receiving unit and the rectifier circuit; and a controller configured to wirelessly communicate with the power transmitting device via a communication device, the controller being configured to, after wireless communication with the power transmitting device is established before a power transmission request signal as a signal for requesting the power transmitting device to transmit power is output to the power transmitting device, close the charging relay, and also perform a short-circuit determination process, by using a value of a voltage sensed by the voltage sensor with the charging relay closed, to determine whether the rectifier circuit has a short circuit fault. - View Dependent Claims (2, 3)
-
Specification