A simple yet powerful PWM controller for DC motors and LEDs!
This project is a Pulse Width Modulation (PWM) controller using the NE555 timer and IRFZ44 MOSFET. The circuit allows smooth speed control for DC motors and brightness adjustment for LEDs.
🔹 Adjustable PWM Signal - Control via a potentiometer.
🔹 Efficient Switching - IRFZ44 MOSFET for high power handling.
🔹 Protection Circuitry - Diodes prevent voltage spikes.
🔹 Stable Performance - High-voltage ceramic capacitors included.
🖼️ Circuit Diagram:
| Component | Value/Type | Description |
|---|---|---|
| IC | NE555 | Timer for PWM generation |
| MOSFET | IRFZ44 | High-power switching |
| Diodes | 1N4148, 1N4007 | Protection components |
| Capacitors | 2KV Ceramic | Stabilization |
| Resistors | 1KΩ, 100Ω | Current limiting |
| Potentiometer | 50KΩ | Adjusts PWM duty cycle |
| LED | Indicator LED | PWM signal visualization |
1️⃣ The NE555 timer generates a PWM signal.
2️⃣ The potentiometer adjusts the duty cycle.
3️⃣ The IRFZ44 MOSFET switches the load based on the PWM signal.
4️⃣ Diodes protect against voltage spikes and back EMF.
🔌 Assemble the circuit following the schematic.
🎚️ Turn the potentiometer to adjust the output.
📟 Monitor PWM output using an oscilloscope, LED, or motor.
✔️ DC motor speed control
✔️ LED dimming
✔️ Power regulation circuits
✔️ DIY electronics projects
🆓 This project is open-source under the MIT License.
Feel free to modify, improve, and contribute!
💡 Contributions are welcome! Create a pull request or open an issue for any suggestions.
🌟 If you like this project, don't forget to ⭐ star this repository!