POWER FEED DEVICE OF INDUCTIVE CHARGING DEVICE

摘要

A power feeding device (2) of a non-contact charging device (1) includes a power factor improvement circuit (10) which converts an AC power supply (3) to DC, and improves a power factor, a smoothing capacitor (16) connected to an output end of the power factor improvement circuit, an inverter circuit (20) which includes a plurality of switching elements (21, 23, 26, 28), and generates an AC signal using a voltage of the smoothing capacitor as a power supply, a power feeding section (9) which feeds power based on the AC signal to a power receiving device (50), and a control circuit (6) which modulates at least one of a duty factor or an operation frequency of each of the switching elements of the inverter circuit in synchronization with the AC power supply.