The thyristor voltage regulation circuit with the output power of 1-4KvA

Published:2011/7/20 22:15:00 Author:Borg | Keyword: voltage regulation circuit, output power | From:SeekIC

The capacitor C in the circuit is charged by R3 and R4 every half wave. The charge current changes if the resistance of R4 is changed, and the conducting time of the trigger thyristor is changed. The trigger circuit is not sensitive to the power supply voltage deviation. As the LEV of the positive pole A and negative pole Ga of the SCR switch changes when the grid voltage changes, so it doesn't affect the trigger time.



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