Power receiving device and power feeding system
First Claim
1. A power receiving device comprising:
- an antenna configured to receive a first AC power and a modulation signal;
a rectifier circuit configured to rectify the first AC power into a DC power;
a communication control unit to which a second AC power comprising the modulation signal is input; and
a transformer between the antenna and the rectifier circuit,wherein an voltage amplitude of the first AC power is the same as an voltage amplitude of the second AC power, andwherein an intermediate potential of the first AC power is different from an intermediate potential of the second AC power.
0 Assignments
0 Petitions
Accused Products
Abstract
A power receiving device and a power feeding system which are capable of performing communication and power feeding at the same time are provided. Further, a power receiving device and a power feeding system which are capable of stably performing communication during power feeding are provided. One embodiment of the present invention relates to a power receiving device which includes an antenna for communication and power feeding that receives AC power, a rectifier circuit that rectifies the received AC power including the modulation signal into DC power, a smoothing circuit that smoothes the resulting DC power, a power storage device that stores the smoothed DC power, a communication control unit that analyzes the modulation signal included in the AC power, and a transformer that is positioned between the antenna and the rectifier circuit and changes a reference potential of the AC power, and a power feeding device.
18 Citations
15 Claims
-
1. A power receiving device comprising:
-
an antenna configured to receive a first AC power and a modulation signal; a rectifier circuit configured to rectify the first AC power into a DC power; a communication control unit to which a second AC power comprising the modulation signal is input; and a transformer between the antenna and the rectifier circuit, wherein an voltage amplitude of the first AC power is the same as an voltage amplitude of the second AC power, and wherein an intermediate potential of the first AC power is different from an intermediate potential of the second AC power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A car comprising:
-
a car body; and a power receiving device provided inside the car body, wherein the power receiving device comprises; an antenna configured to receive a first AC power and a modulation signal; a rectifier circuit configured to rectify the first AC power into DC power; a communication control unit to which a second AC power comprising the modulation signal is input; and a transformer between the antenna and the rectifier circuit, wherein an voltage amplitude of the first AC power is the same as an voltage amplitude of the second AC power, and wherein an intermediate potential of the first AC power is different from an intermediate potential of the second AC power. - View Dependent Claims (14, 15)
-
Specification