Commutation circuit and applications thereof

摘要

The disclosed circuit comprises a thyristor, a diode connected across the thyristor with the opposite polarity, and a commutation capacitor connected across the thyristor through a primary winding of a saturable transformer. The transformer responds to a load current flowing from the thyristor through its secondary winding to produce a reverse current for the thyristor to turn it off. Also there is disclosed the application of the circuit to uni- and bi-directional power control systems.