Wireless power-supplying system, power-receiving device, and power-transmitting device
First Claim
1. A wireless power-supplying system comprising:
- a power-transmitting device that transmits power in a wireless manner; and
a power-receiving device that receives the power and supplies the received power to a load,wherein the power-receiving device includesa switch that switches connection to the load, anda load circuit that is supplied with the power when the switch is in an open state,wherein the wireless power-supplying system includes a control unit that performs a position determining process of determining whether the power-transmitting device and the power-receiving device have a positional relationship in which power is suppliable to the load on the basis of at least one of power, voltage, and current in at least one of the power-transmitting device and the power-receiving device when the power is supplied to the load circuit,wherein the power-transmitting device includes;
a transmitting-side power converter that converts power supplied from the outside into DC power, andan inverter circuit that converts the DC power from the transmitting-side power converter into AC power,wherein the control unit performs the position determining process on the basis of at least one of power, voltage, and current in the transmitting-side power converter or the inverter circuit, andwherein the control unit calculates transmitting-side input impedance on the basis of a voltage and a current input to the inverter circuit and performs the position determining process on the basis of the transmitting-side input impedance.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless power-supplying system includes a power-transmitting device that transmits power in a wireless manner and a power-receiving device that receives the power and supplies the received power to a load, the power-receiving device includes a switch that switches the connection to the load and a load circuit that is supplied with the power when the switch is in an open state, and the wireless power-supplying system includes a control unit that performs a position determining process of determining whether the power-transmitting device and the power-receiving device have a positional relationship in which power is suppliable to the load on the basis of at least one of power, voltage, and current in at least one of the power-transmitting device and the power-receiving device when the power is supplied to the load circuit.
29 Citations
11 Claims
-
1. A wireless power-supplying system comprising:
-
a power-transmitting device that transmits power in a wireless manner; and a power-receiving device that receives the power and supplies the received power to a load, wherein the power-receiving device includes a switch that switches connection to the load, and a load circuit that is supplied with the power when the switch is in an open state, wherein the wireless power-supplying system includes a control unit that performs a position determining process of determining whether the power-transmitting device and the power-receiving device have a positional relationship in which power is suppliable to the load on the basis of at least one of power, voltage, and current in at least one of the power-transmitting device and the power-receiving device when the power is supplied to the load circuit, wherein the power-transmitting device includes; a transmitting-side power converter that converts power supplied from the outside into DC power, and an inverter circuit that converts the DC power from the transmitting-side power converter into AC power, wherein the control unit performs the position determining process on the basis of at least one of power, voltage, and current in the transmitting-side power converter or the inverter circuit, and wherein the control unit calculates transmitting-side input impedance on the basis of a voltage and a current input to the inverter circuit and performs the position determining process on the basis of the transmitting-side input impedance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification