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KiCad 8.0KiCad
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DC Motor Speed Controller
💡 12V DC Motor Speed Controller – PCB Design using KiCAD
This project showcases a compact, efficient, and cost-effective DC motor speed controller based on Pulse Width Modulation (PWM) using the NE555 timer IC in astable mode. It uses a power MOSFET (IRFZ44N) to drive a 12V DC motor and is protected by a Schottky diode (SS14). The entire design is implemented in KiCAD and is ideal for DIY projects, robotics, and educational purposes.
✅ This is a pure hardware solution — no microcontroller or software programming is required.
🔧 Key Features
⚙️ PWM speed control for 12V DC motors
🎛️ Adjustable duty cycle using a potentiometer
📐 NE555 timer configured in astable mode to generate PWM
💪 IRFZ44N power MOSFET for efficient and high-current switching
🔄 Flyback diode (SS14) to protect against back EMF
🧾 2-layer PCB design using KiCAD
⚡ Designed for high efficiency and thermal reliability
DC Motor Speed Controller
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
- ✖ | No sharing or redistributing in any way of the 3D files or derivatives
- ✖ | No remixing
- ✖ | Non-commercial Use (only for personal use)
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