| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact power supply device capable of accurately detecting installation of a power supply target device.SOLUTION: The non-contact power supply device comprises: a power supply coil 22 for supplying power to a power supply target device (remote control 3); an oscillation circuit 5 for driving the power supply coil 22; a current detection circuit 4 for detecting a value of current input to the power supply coil 22; a reception unit (wireless communication unit 11) for receiving power reception notification to be transmitted by the power supply target device when the power supply target device starts power reception; and a control unit (MCU17). The control unit drives the oscillation circuit 5 at a first duty ratio when the current value is equal to or smaller than a first threshold or when the current value exceeds a second threshold larger than the first threshold. When the current value exceeds the first threshold and is equal to or smaller than the second threshold, the control unit drives the oscillation circuit 5 at a second duty ration larger than the first duty ratio over a predetermined period of time, and when the reception unit receives the power reception notification before the predetermined period of time has passed, further drives the oscillation circuit 5 at the second duty ratio after the predetermined period of time has passed. |
