![]() ![]() the resistor dissipates the excess energy as heat. we can adjust the speed of a DC Motor by using a variable resistance in series with the motor.īut this method is usually not prepared for two reasons. The simplest way to achieve this is with the help of a variable resistor i.e. There are multiple ways to adjust the speed of a DC Motor manually. How Speed Control of DC Motor is implemented? So, we will have to adjust the speed of the DC Motor ourselves occasionally. But for normal usage like editing documents, the speed of the fan can be reduced.Īlthough some systems have an automatic adjustment system for fan speed, not all systems possess this functionality. Most of the times we will have to adjust the speed of the motors as per our requirement.Ī CPU Fan for example, must be operated at high speed when the CPU is preforming heavy tasks like games or video editing. are all DC Motors which are operated by DC power supply. For example, CPU fans, fume extinguishers, toy cars etc. We use DC Motors in many systems in our day to day life. In this project, I will show How Speed Control of DC Motor can be implemented using 555 and Pulse Width Modulation (PWM). How Speed Control of DC Motor Circuit Works?.Circuit Diagram of PWM Based DC Motor Speed Control.How Speed Control of DC Motor is implemented?. ![]()
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