Patent ID: 9397582
Filing Date: 2016-07-19
CPC Classification: H02M,Y02B

Claim Text:
1. A power converter, comprising: first and second switching elements, to each of which a diode is connected in anti-parallel, connected in series to either end of a direct current power supply; and a bidirectional switch, configured by first and second switch elements being connected in anti-series or anti-parallel, of which one end is connected to a connection point of the first and second switching elements, wherein, in an operating mode wherein alternating current voltage is output using positive voltage of the direct current power supply input via the first switching element, negative voltage of the direct current power supply input via the second switching element, and voltage input via the bidirectional switch, a period in which polarities of output voltage and output current differ is such that, by the first and second switching elements being turned off, one switch element of the bidirectional switch being turned on in accordance with the polarities of the output voltage and output current, and the other switch element of the bidirectional switch being turned on and off based on an inverted signal of a signal pulse width modulated in accordance with an output voltage command, alternating current voltage obtained by synthesizing voltage input into the other end of the bidirectional switch and a pulse train voltage, which is voltage generated in accordance with the pulse width modulated signal whose amplitude corresponds to the positive voltage or negative voltage of the direct current power supply, is output.