Bi-directional thyristor AC voltage adjustment circuit

Published:2011/8/28 21:17:00 Author:Jessie | Keyword: Bi-directional thyristor, AC, voltage adjustment | From:SeekIC

This circuit uses bi-directional thyristor to control heater load RL. Trigger circuituses a single junction transistor oscillator. It's supplied by AC power, resistor R1 and regulator tube V2. Single junction transistor output is sent to bi-directional thyristor circuit by bi-directional thyristor. If you want to control the speed of DC motor M, you can connect the two-way thyristor to the motor in series according to the dotted line in the figure. Parallel resistor is mainly used to absorb the possible over-voltage on the TRIAC caused by inductive load discharging.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Bi_directional_thyristor_AC_voltage_adjustment_circuit.html

Print this Page | Comments | Reading(3)