4.5-35V 5A PWM Adjustable DC Motor Speed Regulator

4.5–35V 5A PWM Adjustable DC Motor Speed Regulator is a versatile motor controller designed to handle high current loads and wide input voltage ranges. Using pulse-width modulation (PWM), it efficiently regulates the speed of DC motors without sacrificing torque. Ideal for robotics, automotive, and DIY electronics where smooth control and high current delivery are required.

Key Features:

• Wide Voltage Range: Operates from 4.5V to 35V DC input.
• High Current Handling: Supports up to 5A continuous current output.
• Efficient PWM Control: Adjust motor speed with minimal power loss.
• Large Control Knob: Ergonomic knob for smooth and precise speed adjustment.
• Simple Interface: Clearly labeled screw terminals for easy connections.

Technical Specifications:

• Input Voltage: 4.5V – 35V DC
• Output Current: Up to 5A (with heat dissipation)
• Control Method: PWM (Pulse Width Modulation)
• Adjustable Duty Cycle: 0% to 100%
• PWM Frequency: ~13kHz
• Efficiency: >90% under typical loads

Mechanical Specifications:

• Board Dimensions: Approx. 32mm × 24mm
• Knob: Rotary with pointer for visual feedback
• Connectors: 2 input terminals, 2 output terminals (screw type)
• Cooling: Aluminum electrolytic capacitor for voltage smoothing

Wiring and Connections:

• Power Input: Connect to a DC power supply between 4.5V and 35V
• Motor Output: Connect to brushed DC motor respecting polarity
• Knob Function: Clockwise to increase, counterclockwise to reduce speed

Datasheet and Documentation:

• Download 4.5–35V 5A PWM Motor Controller Datasheet (PDF)

Applications:

• RC Vehicles: Speed control for brushed motors in cars or boats.
• Mini CNC or Drill Machines: Variable-speed control for compact tools.
• Fan Controllers: Smoothly adjust fan speed in enclosures or cooling systems.
• DIY Projects: Useful in homemade motorized devices or Arduino-based projects.

Equivalent Modules:

• HW-687: Common compact PWM speed controller for brushed motors
• XY-PWM: Digital adjustable PWM control module
• Mini 5A PWM: Basic analog speed regulator with knob control

Package Includes:

• 1 x 4.5–35V HW-687 5A PWM Adjustable DC Motor Speed Regulator Module