Power conversion circuit
View Patent ↗A power conversion circuit which receives a high potential, a low potential, and a neutral potential intermediate between the high and low potentials includes an AC switch connected so as to receive the neutral potential and a switching device receiving the high potential. The AC switch includes a diode and an inductance is connected to the diode and the switching device.
1. A power conversion circuit which receives a high potential, a low potential, and a neutral potential intermediate between said high and low potentials, said power conversion circuit comprising:
an AC switch connected so as to receive said neutral potential; and
a switching device receiving said high potential at its collector and further receiving said neutral potential at its emitter through said AC switch;
wherein said AC switch includes a diode; and
wherein an inductance is connected between said diode and said switching device.
2. The power conversion circuit according to claim 1 , wherein:
said AC switch further includes an intra-AC-switch switching device therein; and
said AC switch further includes a snubber circuit for absorbing or suppressing a surge voltage appearing across both ends of said intra-AC-switch switching device.