Notch cutting circuit with minimal power dissipation

Details Notch cutting circuit with minimal power dissipation Notch cutting circuit with minimal power dissipation

1988-08-31

1990-08-07

Mis, David

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Plural discharge devices and/or rectifiers in the supply...

315226, 315248, 315DIG4, H05B 4114, H01J 1736

Patent

active

049470795

ABSTRACT:
A circuit for cutting a "notch" in an alternating current supply waveform with the minimization of dissipated power comprising a pair of GTO's so poled to conduct current therethrough and also through a pair of power consuming diodes when the switches are "on" during alternate half cycles, the switches being turned "off" at the start of the "notches", and the current is resumed thereafter by a pair of oppositely poled SCR's which are turned "on" and which bypass power diodes so as to conserve power.

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