PWM DC Motor Governor 5V-35V Speed Regulation 5A Switch Function 90W 20kHz 30mm x 26mm Motor Speed Controller for DC Brushed Motor Speed Adjustment
PWM DC Motor Governor 5V-35V Speed Regulation 5A Switch Function 90W 20kHz 30mm x 26mm Motor Speed Controller for DC Brushed Motor Speed Adjustment
PWM DC Motor Governor 5V-35V 5A Speed Controller for Brushed DC Motors
This PWM DC motor governor offers reliable speed regulation for brushed DC motors across a wide operating voltage range of 4.5V to 35V. With a continuous output current capacity of 0-5A and a maximum output power of 90W, it is suitable for a variety of DC-powered applications such as small conveyors, fans, pumps, and hobbyist projects. The 20kHz PWM frequency ensures smooth and near-silent speed variation. The unit is compact, measuring just 30mm x 26mm x 14mm, making it easy to integrate into tight spaces. Note that this device operates on direct current only and must never be connected to AC mains power. Correct polarity of the DC input is essential to prevent damage.
Features and Construction
The governor is built around a standard PWM controller circuit with a manual potentiometer for duty cycle adjustment. Its compact PCB design keeps the footprint small while delivering reliable performance within its rated specifications.
Operating Voltage and Current
The governor accepts DC input from 4.5V to 35V, covering common battery and power supply voltages such as 5V, 12V, and 24V. It can handle a continuous output current of up to 5A, allowing control of moderate-power DC motors up to 90W.
PWM Frequency and Control
The fixed 20kHz PWM frequency provides smooth motor speed adjustment with minimal audible noise. The potentiometer knob allows the user to vary the duty cycle from 1% to 100%, giving fine control over motor speed.
Compact Dimensions and Mounting
The circuit board measures only 30mm in length and 26mm in width, with a height of 14mm excluding the control handle. This compact size allows the governor to be installed in enclosures or mounted directly within equipment.
Uses and Placement
This speed controller is designed for use with DC brushed motors in a range of settings where adjustable speed is required. It is commonly employed in DIY electronics, model making, automation, and small machinery.
Hobbyist and DIY Projects
Enthusiasts can use this governor to control motor speed in model cars, boats, fans, or small lathes. The wide voltage range makes it adaptable to common battery packs and bench power supplies.
Industrial and Automation Use
In light industrial settings, the governor can regulate conveyor belt speed, pump flow, or fan speed. Its 5A rating is adequate for many small motors used in automation systems.
Educational and Prototyping
For electronics students and engineers, the governor provides a simple and effective way to demonstrate PWM motor control principles. Its low cost and small size make it ideal for prototyping.
Benefits and Buying Value
This PWM DC motor governor offers straightforward speed control with minimal setup. Its wide input voltage range and 5A output capacity provide flexibility across many applications.
Simple Adjustment
The rotary potentiometer gives direct, intuitive control over motor speed. There are no complex menus or programming steps required, making it easy to use for beginners and experienced users alike.
Low Power Standby
With a standby current of only 7uA, the governor draws negligible power when the motor is not running, which is helpful for battery-powered projects where energy efficiency is a concern.
Reliable Operation Within Specs
When used within its rated voltage and current limits and with correct polarity, the governor provides consistent PWM speed control. The 20kHz frequency reduces motor whine compared to lower-frequency controllers.
