The DC 8V-24V Brushless DC Motor Speed Controller is a compact and reliable PWM speed control board designed for controlling the speed of brushless DC (BLDC) motors that already have a built-in driver and PWM control input. It provides smooth speed adjustment, forward and reverse direction control, and start/stop functionality, making it ideal for DIY electronics, industrial automation, robotics, cooling systems, CNC equipment, and laboratory projects.

This controller generates a stable PWM signal at approximately 18kHz, allowing efficient motor speed regulation with minimal noise and smooth operation. The speed can be adjusted continuously from 0% to 100% duty cycle using the onboard 10K potentiometer. Built with high-quality PCB material and premium electronic components, it offers stable performance, simple wiring, and long service life.

Important: This controller is designed only for brushless DC motors that support external PWM speed control and direction control. It cannot directly drive standard 3-phase sensorless BLDC motors without a compatible driver.

BDTronics supplies quality motor controllers, PWM controllers, BLDC drivers, and electronic components for industrial, educational, and DIY applications in Bangladesh.

Features:

• Supports DC input voltage from 8V to 24V

• Designed for brushless DC motors with built-in driver and PWM input

• Smooth PWM motor speed control

• Adjustable speed from 0% to 100%

• PWM frequency approximately 18kHz for quiet operation

• Built-in Start/Stop switch

• Forward and Reverse direction control

• Stable and reliable performance

• High-quality PCB construction

• Premium electronic components

• 10K potentiometer for precise speed adjustment

• LED power indicator

• Easy screw terminal wiring

• Compact and lightweight design

• Simple installation

• Suitable for DIY and industrial applications

Specifications:

• Product Type: Brushless DC Motor Speed Controller

• Motor Type: Brushless DC Motor (BLDC) with Driver

• Input Voltage: DC 8V–24V

• Output Signal: 5V PWM

• PWM Frequency: Approximately 18kHz

• Duty Cycle: 0%–100%

• Speed Adjustment: 10K Potentiometer

• Direction Control: Forward / Reverse

• Start/Stop Control: Yes

• LED Indicator: Yes

• Wiring Method: Screw Terminal

• PCB Color: Green

• Available Versions: Front Switch / Side Switch

Applications

• Brushless DC motor speed control

• BLDC motors with PWM interface

• Robotics projects

• DIY electronics

• Industrial automation

• Cooling fan speed control

• Laboratory equipment

• Small machine automation

• Conveyor systems

• Electric tools

• Educational projects

• Prototype development

• Automation control systems

• CNC equipment

• Embedded system development

How to Use

• Connect a DC power supply between 8V and 24V.

• Connect the controller to the BLDC motor driver's PWM input terminals.

• Ensure the motor driver supports external PWM speed control.

• Use the onboard potentiometer to adjust motor speed.

• Press the Start/Stop switch to control motor operation.

• Use the Forward/Reverse switch if supported by the motor driver.

• Verify wiring polarity before applying power.

• Install the board in a dry and ventilated environment.

Important Notes

• Compatible only with BLDC motors that have a built-in driver and PWM control input.

• Does not directly drive bare three-phase brushless motors.

• Forward and reverse functions require motor driver support.

• Use a regulated DC power supply within the specified voltage range.

• Disconnect power before wiring or changing connections.

Package Includes

• 1 × DC 8V–24V Brushless DC Motor PWM Speed Controller Board

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