Composed of trigger and switch tube motor automatic speed governor circuit diagram

Published:2011/4/12 2:52:00 Author:Rebekka | Keyword: trigger and switch tube , motor automatic governor | From:SeekIC

Motor automatic speed governor circuit is composed of 555 trigger and a switch. The sample circuit is composed of R7 and motor in series. When the operation runs within the specified speed, sample voltage VA<1/3VDD, 555 resets, VT1 is conducted, motor runs with power; When the speed overrun, VA>1/3VDD, the connection of R1 makes 555 reset and VT1 stop, the motor power-off, inertial rotation. When VA<1/3VDD, it makes 555 resets again, VT1 will be conducted and the motor works. It controlls the speed of motor all day long. RP1 is used for adjusting the control trigger level.



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