Adjustable PWM DC Motor Speed Controller PCB with Potentiometer & Power Terminals

This compact PWM DC motor speed controller PCB is designed for precise speed regulation of small DC motors and resistive loads. Built on a green FR-4 substrate, it features a dedicated PWM control IC, adjustable potentiometers (for speed and sensitivity tuning), and high-power transistors with heat sinks to deliver reliable power switching.

The board includes clearly labeled terminal blocks for power input, load connection, and ground, alongside an external control knob for convenient manual speed adjustment. With optimized circuit design and robust component selection, it ensures smooth and stable speed control across a wide range of DC motor applications, from hobbyist projects to industrial small-load control.

Compliant with RoHS standards, this PCB assembly offers easy installation and reliable performance, making it an ideal solution for DC motor speed regulation, fan control, and light dimming applications.

· DC motor speed control (small motors, fans, pumps)

· Resistive load dimming (LED lights, heating elements)

· Hobbyist robotics & model vehicle speed regulation

· Industrial small-load power control

· DIY electronic projects & educational kits

1. Precise Speed Control: PWM technology delivers smooth, stepless speed adjustment for DC motors.

2. Flexible Tuning: Dual potentiometers allow fine-tuning of speed and control sensitivity.

3. High Power Handling: Power transistors with heat sinks support up to 10A load current.

4. Easy Operation: External control knob enables convenient manual speed adjustment without opening the enclosure.

5. Plug-and-Play: Clearly labeled terminal blocks simplify wiring and installation.

Q: What is the maximum load current this controller can handle?

A: The standard design supports up to 10A continuous current with the included heat sink (customizable for higher current).

Q: Can this controller be used for LED dimming or other resistive loads?

A: Yes, the PWM output is suitable for controlling DC motors, fans, LED lights, and other resistive loads.

Q: Is the speed control knob included?

A: Yes, the package includes an external speed knob with connecting wires for direct manual control.