PE-B11: DC Motor Speed Control Circuit

Dr. Dattaraj Vidyasagar
March 28, 2023
January 20, 2024

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

Basic Electronic Circuits

PE-B1: LED on/off Circuit
PE-B11: DC Motor Speed Control Circuit
PE-B13: Automatic Street Light Control Circuit

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.

Page Contents show

Details of material required

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

Circuit Diagram

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.

Series Navigation<< PE-B1: LED on/off Circuit PE-B13: Automatic Street Light Control Circuit >>

Dr. Dattaraj Vidyasagar

M.S. Electronics & Telecomm. (Cleveland Institute of Electronics, Ohio), Associate Member (IETE, Kolkata), Panelist on Dr. Homi Bhabha Foundation, Google certified educator (Level-1), Mentor of Change (MoC-1619) Niti Ayog, Government of India, International Robotics Trainer, Veteran of Applied Electronics since 35+ years.