PWM DC Motor Speed Regulator (3V / 6V / 12V / 24V / 35V)

The PWM DC Motor Speed Regulator is a compact and high-efficiency electronic speed controller designed to provide smooth, precise, and reliable speed control for brushed DC motors operating over a wide voltage range. Utilizing Pulse Width Modulation (PWM) technology, the controller regulates motor speed by varying the duty cycle of the power supplied to the motor while maintaining high efficiency and minimizing energy loss. Unlike traditional voltage regulators, PWM control reduces heat generation and preserves motor torque even at lower speeds, making it ideal for battery-powered systems and continuous operation.

Supporting an input voltage range of 4.5V to 35V DC, the regulator is compatible with 3V, 6V, 12V, 24V, and 35V DC motors and can handle output currents of up to 5A (depending on cooling and operating conditions). The built-in rotary potentiometer allows users to adjust motor speed smoothly from approximately 0% to 100%, providing accurate control for a wide variety of applications.

Its compact PCB design makes it easy to integrate into robotics, automation systems, conveyor mechanisms, miniature machine tools, cooling fans, pumps, electric vehicles, and DIY electronic projects. The controller is simple to install using screw terminals or solder pads for secure motor and power connections, making it suitable for both beginners and professional developers.

The PWM controller delivers stable motor operation with low electrical noise and improved efficiency, helping extend battery life while reducing power consumption. Its rugged design ensures reliable performance under continuous operation, making it an excellent solution for educational experiments, prototype development, and industrial applications requiring dependable DC motor speed regulation.

Ideal for students, hobbyists, engineers, and automation enthusiasts, the PWM DC Motor Speed Regulator provides an economical and effective method for controlling DC motor speed with precision, efficiency, and reliability.

Key Features

• PWM (Pulse Width Modulation) motor speed control

• Wide input voltage range: 4.5V–35V DC

• Compatible with 3V, 6V, 12V, 24V, and 35V DC motors

• Maximum output current: 5A

• Smooth speed adjustment from approximately 0–100%

• High efficiency with minimal heat generation

• Maintains motor torque at low speeds

• Compact and lightweight design

• Easy-to-use rotary speed control knob

• Simple installation and wiring

• Low power consumption

• Reliable long-term performance

Applications

• DC motor speed control

• Robotics projects

• DIY electronics

• Automation systems

• Conveyor systems

• Mini CNC machines

• Cooling fans

• Water pumps

• Electric vehicles

• Battery-powered equipment

• Laboratory experiments

• Educational projects

• Prototype development

• Industrial control systems

Benefits

• Precise motor speed regulation

• High energy efficiency

• Reduced power loss and heat generation

• Smooth motor operation

• Extends battery runtime

• Preserves motor performance

• Compact and easy to install

• Cost-effective motor control solution

Technical Specifications

• Control Method: Pulse Width Modulation (PWM)

• Input Voltage: 4.5V–35V DC

• Compatible Motor Voltages: 3V, 6V, 12V, 24V, 35V

• Maximum Output Current: 5A

• Speed Adjustment Range: Approximately 0–100%

• Control Interface: Rotary Potentiometer

• Motor Type: Brushed DC Motors

• Cooling: Passive (additional cooling recommended for high-current operation)

Package Includes

• 1 × PWM DC Motor Speed Regulator Module

• 1 × Rotary Speed Control Knob (pre-installed or included)

Advantages

• Wide operating voltage compatibility

• Efficient PWM speed control

• Simple plug-and-play operation

• Stable motor performance

• Compact PCB design

• Suitable for hobby and industrial applications

• Low maintenance

• Reliable and durable construction

The PWM DC Motor Speed Regulator (3V / 6V / 12V / 24V / 35V) is a versatile and efficient motor control module that provides accurate speed regulation for brushed DC motors using advanced PWM technology. Its wide voltage compatibility, compact size, high efficiency, and reliable performance make it an ideal choice for robotics, automation, educational projects, battery-powered devices, and various DIY and industrial motor control applications.