Stimulated simple motor speed control circuit

  
Ic, spread the use of electric comparator LM339c1 / 4), the potentiometer B to set the desired degree of construction, built-degree feedback signal by R., white A strong piece pressure point achieved, assuming a nephew increase the load speed r leaving
Stimulated simple motor speed control circuit - schematic

speed is reduced just A point potential rise. (I) the continued high level output pin LM339, M, conduction increases, L, winding drop by. A point potential F down until the speed reaches a certain level} Shu.




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