Power supply device

Abstract

This prevents power from being supplied to the vehicle when there is a malfunction in the power transmission module of the power supply device. [Solution] The power supply device 100 includes a power transmission module 130 that includes the primary side of a transformer 300 and supplies power to the vehicle 200 without contact, an inverter 120 that outputs voltage to the power transmission module 130, a sensor 140 that detects a physical quantity dependent on the current flowing through the power transmission module 130, and a controller 20 that controls the operation of the inverter 120 based on the detected value of the sensor 140. Before the power supply operation of the inverter 120 that supplies power from the power transmission module 130 to the vehicle 200 is started, the controller 20 outputs voltage from the inverter 120 to the power transmission module 130 and prohibits the power supply operation if the detected value of the sensor 140 exceeds a threshold.

Claims

1. A power transmission module that includes the primary side of a transformer and supplies power to the vehicle in a contactless manner, The aforementioned power transmission module includes an inverter that outputs voltage, A sensor that detects a physical quantity dependent on the current flowing through the power transmission module, The system includes a control device that controls the operation of the inverter based on the detected value of the sensor, The control device is Before the power supply operation of the inverter that supplies the power from the power transmission module to the vehicle begins, the inverter outputs a voltage to the power transmission module. A power supply device that prohibits the power supply operation when the detected value of the sensor exceeds a threshold.

2. The power supply device according to claim 1, wherein the control device controls the inverter so that an AC voltage lower than the AC voltage output to the power transmission module by the power supply operation is output to the power transmission module before the power supply operation is started.

3. The power supply device according to claim 1 or 2, wherein the sensor is a current sensor electrically connected between the inverter and the power transmission module, and detects the current value output from the inverter to the power transmission module as the physical quantity.

4. The power supply device according to claim 1 or 2, wherein the sensor is a current sensor that detects the current value input to the inverter as the physical quantity.

5. The power supply device according to claim 1 or 2, wherein the sensor is a temperature sensor that detects the temperature of the power transmission module as the physical quantity.

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