B11: DC Motor Speed Control Circuit 

PE-B11: DC Motor Speed Control Circuit 

This entry is part 2 of 3 in the series Basic Electronic Circuits

In this circuit when we rotate the variable resistor clockwise, the speed of motor increases and when we rotate it anti-clockwise the speed of motor decreases.

Download the set of Practical Electronics Notes & Workbook and start constructing interesting circuits at home.

Details of material required

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About Components

  • Resistor: It protects the LED from burning.
  • Buzzer: It produces alarm when it is ON.
  • Transistor: It has 3 terminals – collector, base and emitter. The emitter is shown with arrow in the symbol.

Circuit diagram & Working

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Circuit Diagram

DC Motor speed control bb Vidyasagar Academy Akola

Buy complete workbook of Practical Electronics just for Rs.49. The downloadable PDF copy contains 15 basic projects of practical electronics with complete details. It will help you construct more advanced circuits in practical electronics.

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Dattaraj Vidyasagar
Dattaraj Vidyasagar

Author on this website. He is veteran of Core Electronics since last 36+ years. ATL Mentor of Change, Niti Ayog, Govt. of India, Google Certified Educator, International Robotics Trainer and author of 18 books on electronics, robotics, programming languages and web designing... ➤➤

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