Patent ID: 7813152
Filing Date: 2010-10-12
Classification: H02M,H03K

Abstract:
1. A power converter comprising: a pair of main circuit switching elements connected to a direct-current voltage source and supplying power to an inductive load by ON/OFF drive, at least one main circuit switching element of the pair being configured of an FET; a diode connected in antiparallel with each of the pair of main circuit switching elements; a reverse voltage application means that applies a reverse voltage lower than a voltage of the direct-current power source to the diode connected in antiparallel with the FET; a first PWM basic-signal generating means that generates a first PWM basic signal for ON/OFF-driving the pair of main circuit switching elements; a second PWM basic-signal generating means that generates a second PWM basic signal having a phase lead with respect to the first PWM basic signal; and a one-shot pulse generating means that generates a reverse voltage application signal based on the second PWM basic signal, the reverse voltage application signal being for driving the reverse voltage application means for a predetermined period.