ESP32 38-Pin WiFi + Bluetooth NodeMCU Development Board
12V 10A PWM DC Motor Speed Controller
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The 12V 10A PWM DC Motor Speed Controller provides smooth, adjustable speed control for compatible brushed DC motors and other suitable DC loads. Instead of regulating the motor by simply reducing voltage, it uses Pulse Width Modulation (PWM) to vary the amount of power delivered to the load. The adjustable PWM duty cycle ranges from 10% to 100%, allowing the motor speed to be tuned for different operating requirements.
With an input supply range of 12V to 40V DC and a maximum load capacity of up to 10A, this compact motor speed controller is suitable for robotics, automation systems, fans, pumps, conveyors and DIY electronics projects. Its fixed 13kHz PWM frequency supports consistent speed regulation, while the barrier terminal blocks make power and motor connections straightforward.
The controller includes a 10A fuse and protection features intended to help handle overload and short-circuit conditions. The compact 60 × 55 × 28 mm enclosure makes it practical for integrating into project boxes and equipment where adjustable DC motor speed is required.
Note: This cannot be used for the brushless motor. The controller is not reverse-polarity protected and will be damaged if it connects the supply voltage with the wrong polarity.
| Input supply voltage | 12V - 40V DC |
| Control Power | 0.01 – 400W |
| Static Current | 0.02A (Standby) |
| PWM Duty Cycle | 10% - 100% |
| PWM frequency | 13kHz |
| Dimensions(LxWxH) | 6x5.5x2.8 cm |
| Weight | 69gm |
The controller accepts a 12V to 40V DC input supply. Always operate it within this specified voltage range and make sure the power supply can provide the current required by the connected motor.
It is rated for up to 10A continuous current. However, the motor's starting and stall current can be considerably higher than its normal running current. Choose a motor and power supply that remain within the controller's rated limits during operation.
No. This module is intended for brushed DC motors and compatible DC loads. It should not be used as a BLDC motor controller or as a replacement for a brushless motor ESC.
The adjustable PWM duty cycle is 10% to 100%. Changing the duty cycle changes the average power delivered to the motor, allowing its operating speed to be adjusted.
The controller operates at a fixed 13kHz PWM frequency. This is the switching frequency used for PWM-based motor speed regulation.
No. This module is primarily a PWM speed controller. It should not be described as a forward/reverse motor controller unless the specific hardware provides a separate direction-control circuit.
The product information currently contains conflicting statements about reverse-polarity protection. To avoid a misleading claim, users should always verify the supply polarity before powering the module. Incorrect polarity may damage the controller.
Typical uses include robotics, DIY automation, fans, pumps, conveyors and other compatible brushed DC motor applications where adjustable speed control is required.