Single phase electromotor thyristor stepless speed regulation circuit

Published:2011/5/26 8:43:00 Author:Christina | Keyword: Single phase, electromotor, thyristor, stepless, speed regulation | From:SeekIC

As the figure shows, the adjusting potentiometer RP can adjust the conduction angle of the thyristor to change the output voltage, so it achieves the purpose of the electromotor revolving speed stepless adjusting. If the RP resistance value is small, the VS conduction angle is big, the output voltage is high, so the electromotor revolving speed is high; on the contrary, if the RP resistance value is big, the electromotor revolving speed is low.



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