Summary of Speed control of DC motor by PWM in Proteus simulation
Summary: This article describes a Proteus simulation demonstrating DC motor speed control using PWM generated by an 8051 microcontroller. Two push buttons adjust PWM duty cycle to increase or decrease motor speed; the PWM waveform can be observed on an oscilloscope in the simulation. The author used single-transistor switching instead of a full H-bridge and provides download links for the Proteus files, C source, and debug file.
Parts used in the Speed control of DC motor by PWM in Proteus simulation:
- Proteus simulation software (Proteus 8 demo mentioned)
- 8051 microcontroller
- DC motor (simulated)
- Single switching transistor (for motor drive)
- Two push buttons (for duty cycle increase/decrease)
- Oscilloscope (for viewing PWM waveform)
- Proteus project files, C program, and debug file (downloads provided)
Hello friends here is a proteus simulation of speed control of DC motor with the help of Pulse width modulation (PWM) control, PWM signals are generated by 8051 microcontroller.
As we have discussed earlier that proteus is a really good simulation software for beginners and 8051 is the most basic among all microcontroller so this can be a very good project of motor control if you are doing it for first time.
Originally this simulation was given in demo file of Proteus 8, but full H- bridge control was used there but i have used only one transistor switching to transfer PWM to motor.
Here two push buttons are used to control the duty cycle of PWM signal generated by 8051. You can see the PWM signal changing on oscilloscope when we press the buttons. (You can use these buttons to increase or decrease pulse width.)
Here is the link to download simulation files, C program and debug file for PWM generation by 8051 microcontroller.
If you have any query or suggestions you can always comment below. 
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Source : Speed control of DC motor by PWM in Proteus simulation
- How is PWM generated in this project?
PWM is generated by the 8051 microcontroller as described in the article. - Can the PWM duty cycle be changed during simulation?
Yes, two push buttons are used to increase or decrease the PWM duty cycle during simulation. - Does the simulation use a full H-bridge for motor control?
No, the article states a single transistor switching is used instead of a full H-bridge. - What software is used for the simulation?
Proteus (Proteus 8 demo file is mentioned) is used for the simulation. - Is there a way to observe the PWM signal in the simulation?
Yes, the PWM signal can be observed on the oscilloscope within the Proteus simulation. - Are source code and project files available?
Yes, the article provides a link to download simulation files, the C program, and the debug file. - Is this project suitable for beginners?
Yes, the article suggests Proteus is good for beginners and 8051 is a basic microcontroller, making this a suitable introductory project. - Can this simulation be adapted to use other microcontrollers like Arduino?
The article lists related search terms including Arduino, but it only describes the 8051-based Proteus simulation itself.
