A bridge-router motor consisting of two thyristors and two silicon rectifiers provides full-wave current. Diodes D 3 and D 5 are supplied to the flip-flop circuit through a step-down resistor R 1 , and the voltage developed by the Zener diode charges the capacitor C 2 through resistors R 3 and R 4 . Provides a delay for the triggering of the thyristor. The tube is triggered when C 2 is charged to the trigger voltage of the transistor. When C 2 is fully discharged, the transistor is turned off, and the resistance of the resistor R F depends on the amount of feedback required for the size of the motor.
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