Wireless power receiving apparatus
AssigneeAdvantest Corporation
InventorsYuki Endo, Yasuo Furukawa
Life of this patent
Estimating the term…
Abstract
In a wireless power supply system, a first capacitor is arranged in series with an antenna. A second capacitor and a switch are arranged in series on a path arranged in parallel with the first capacitor. A control unit adjusts the duty ratio of the switch according to the frequency of an electric power signal.
Claims8
A wireless power receiving apparatus configured to receive an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, transmitted from a wireless power supply apparatus, the wireless power receiving apparatus comprising:
- a reception coil configured to receive the electric power signal;
- an auxiliary coil and a capacitor arranged in series with the reception coil;
- a switch arranged in parallel with the auxiliary coil;
- and
- a control circuit for controlling an ON/OFF operation of the switch with a duty ratio that corresponds to the frequency of the electric power signal.
A wireless power supply apparatus configured to transmit an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, the wireless power supply apparatus comprising:
- a transmission coil configured to transmit the electric power signal;
- an auxiliary coil and a capacitor arranged in series with the transmission coil;
- a switch arranged in parallel with the auxiliary coil;
- and
- a control circuit for controlling an ON/OFF operation of the switch with a duty ratio that corresponds to the frequency of the electric power signal.
Dependencies are inferred from the claim text.