Back to results
US 10,256,675 B2Granted
Power-supplying device and wireless power supply system
AssigneeIHI Corporation
InventorTakahiko Murayama
Life of this patent
Estimating the term…
Abstract
A power-supplying device and a wireless power supply system of the present disclosure include an inverter circuit configured to convert direct current power into alternating current (AC) power, a resonance circuit configured to wirelessly transmit power toward a power-receiving device based on the AC power, and a control unit configured to control the inverter circuit at a switching frequency based on state information of predetermined elements.
Claims8
A power-supplying device comprising:
- an inverter circuit that converts direct current (DC) power into alternating current (AC) power, wherein the inverter circuit includes a switching element, an inverter capacitor and an inverter coil;
- a resonance circuit that is connected to the inverter circuit and wirelessly transmits power toward a power-receiving device based on the AC power, wherein the resonance circuit includes a resonance capacitor and a resonance coil;
- and
- a control unit communicatively coupled to the inverter circuit that controls the switching element at a switching frequency based on state information of predetermined elements,
- wherein the predetermined elements are either (A) the inverter capacitor and the inverter coil or (B) the resonance capacitor and the resonance coil;
- and
- wherein the state information is at least one of (X) values of temperatures of the predetermined elements and (Y) values of currents and voltages of the predetermined elements.
4 more elements
A power-supplying device comprising:
- an inverter circuit that converts direct current (DC) power into alternating current (AC) power, wherein the inverter circuit includes a switching element, an inverter capacitor and an inverter coil;
- a power-supplying side resonance circuit that is connected to the inverter circuit and wirelessly transmits power toward a power-receiving device based on the AC power, wherein the power-receiving device includes a power-receiving side resonance circuit that has a resonance capacitor and a resonance coil and a rectifier circuit that has a rectifier capacitor and a rectifier coil;
- a communication unit that receives state information of predetermined elements;
- a control unit that controls the switching element of the inverter circuit at a switching frequency based on the state information,
- wherein the predetermined elements are either (A) the resonance capacitor and the resonance coil or (B) the rectifier capacitor and the rectifier coil, and
- wherein the state information is values based on at least one of (X) values of temperature of the predetermined elements and (Y) values of currents and voltages of the predetermined elements.
3 more elements
A power-supplying device comprising:
- a rectifier circuit to be connected to a commercial power supply;
- a voltage converter connected to the rectifier circuit, wherein the voltage converter includes a converter capacitor and a converter coil;
- an inverter circuit that converts direct current (DC) power into alternating current (AC) power from the voltage converter, wherein the inverter circuit includes an inverter capacitor and an inverter coil;
- a resonance circuit connected to the inverter circuit and configured to wirelessly transmit the power toward a power-receiving device based on the AC power, wherein the resonance circuit includes a resonance capacitor and a resonance coil;
- and
- a control unit that controls a switching element of the inverter circuit at a switching frequency based on state information of predetermined elements, wherein the predetermined elements are either:
- (A) the converter capacitor and the converter coil,
- (B) the inverter-capacitor and the inverter coil, or
- (C) the resonance capacitor and the resonance coil;
- wherein the state information is at least one of (X) values of temperatures of the predetermined elements and (Y) values of currents and voltages of the predetermined elements.
7 more elements
Dependencies are inferred from the claim text.