Power conversion apparatus

H - Electricity – 02 – M

Patent

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321/42

H02M 1/08 (2006.01) H02M 7/523 (2006.01) H02M 7/48 (2006.01) H02M 7/515 (2006.01)

Patent

CA 1126812

ABSTRACT OF THE DISCLOSURE When a power conversion apparatus such as inverter or chopper comprises gate turn-off thyristors (GTO's), current limiting reactors are connected to cathodes of the GTO's and opposite ends of each of the reactors are connected to positive and negative terminals, respectively, of a gate power supply which supplies a turn-on current and a turn-off current to the respective GTO. With this arrangement, an energy stored in each of the reactors at the turn-off of the GTO is absorbed by the gate power supply.

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