Patent ID: 9071162
Filing Date: 2015-06-30
Classification: H02J,H02M,Y02B

Abstract:
1. An AC-AC converter for receiving power from first and second AC input conductors and supplying power to first and second output conductors, comprising: a first semiconductor switch series circuit wherein first semiconductor switches, to each of which a diode is connected in anti-parallel, are connected in series; a second semiconductor switch series circuit wherein second semiconductor switches, to each of which a diode is connected in anti-parallel, are connected in series, a capacitor series circuit wherein capacitors are connected in series, the capacitor series circuit being connected in parallel with the first and second semiconductor switch series circuits; a first inductor connected between the first AC input conductor and a series connection point inside the first semiconductor switch series circuit; a bidirectional switch connected directly to the first AC input conductor and directly to a series connection point inside the second semiconductor switch series circuit; and a second inductor connected between the series connection point inside the second semiconductor switch series circuit and the first AC output conductor, wherein a series connection point inside the capacitor series circuit is connected to the second AC input conductor and to the second AC output conductor.