Control of a composite bridge at zero voltage

Details Control of a composite bridge at zero voltage Control of a composite bridge at zero voltage

1997-03-27

1999-11-30

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363128, H02M 7162

Patent

active

059953950

ABSTRACT:
The present invention relates to a device for controlling a composite bridge including two anode-gate thyristors, the cathodes of which are connected together to a positive output terminal, the gates of the two thyristors being interconnected. The device includes a single-throw switch, controllable to be turned off and on, connected on the one hand to the two thyristors and on the other hand to a reference potential, and control means to turn on the switch only in a predetermined voltage range around the zero voltage of an a.c. voltage of the composite bridge.

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