| 摘要 |
<p>Provided is a non-contact power feed device that supplies electrical power, without contact, between a power transmission coil and a power receiving coil by at least magnetic coupling, wherein the device has a plurality of switching elements (15a-15d) and is provided with the following: an inverter (15) that converts electrical power from a power source and supplies the same to the transmission coil, an inverter output current detection means that detects output current of the inverter (15); and an inverter control means that sets a target value pulse width for an output voltage of the inverter (15) in accordance with an output current and controls the inverter (15). The inverter control means sets a pulse width that makes the effective current ratio, which indicates the ratio in respect to the output current of the current of the fundamental wave component included in the output current, higher than a prescribed effective current ratio.</p> |
