Controlling the speed of a DC motor is a key requirement in many household and industrial applications such as fans, mixers, pumps, and sewing machines. This project presents a simple and effective circuit to regulate motor speed using a MOSFET and a potentiometer. By adjusting the resistance, we can vary the voltage supplied to the motor, thereby controlling its speed.
The project involved the following main steps:
- Simulation: Circuit was designed and simulated using Proteus.
- Implementation: Real-life circuit built using a breadboard and electronic components.
- Testing: Functionality confirmed via simulation and physical trial.
- Documentation: All work recorded and analyzed in a technical report.
| Component | Purpose |
|---|---|
| 9V Battery | Powers the circuit |
| 50kΩ Potentiometer | Adjusts resistance to control speed |
| DC Motor | Converts electrical energy into mechanical motion |
| nMOS Transistor (MOSFET) | Controls current flow based on input signal |
| Breadboard & Wires | Connects and holds the circuit components |
This project demonstrates how a DC motor's speed can be precisely and efficiently controlled using basic electronic components. The design is simple, reliable, and easily adaptable to real-world applications. The combination of simulation (Proteus) and physical modeling (Tinkercad and real hardware) ensured accuracy and a deeper understanding of the circuit behavior.
Project.pdsprj: Proteus simulation file for the circuit.Documentation.pdf: Full technical report including circuit diagrams and screenshots.README.md: Project overview and key information.
- Amr Yasser Badr Hussein – 932230126
- Mennallah Mohammed Helmy Gouda – 932230210
- Youssef Mahmoud Younis Abouzaif – 932230242
- Youssef El-Sayed Mohamed Sayed – 932230230