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Series-excited motor conditioning speed circuit with two-way

2016-09-02 05:06  
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Series-excited motor conditioning speed circuit with two-way trigger tube
When Capacitor voltageis isover two-way trigger tube Dc turning voltage, the bidirectional thyristor will be connected. Change potentiometer R1's value can control the angle of thyristor, then change the speed of motor. Resistors R2 + R1 can be chosen several hundred kΩ, and Capacitor C is about 0.1μF.