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DC Motor Speed Controller allows controlling the direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 0%-100%.
The motor speed controller is with a self-recovery fuse 2A and a Power-On LED light. It can easily provide a continuous current of 2A to your DC motor or other DC load.
Main technical parameters:
- Input supply voltage: 1.8V-15V DC
- The maximum output power: 24W
- The maximum continuous output Current :2A
- Duty Cycle adjustable: 0%-100%.
Specifications:
- Item size: 32*32*15mm.
Operating instruction:
1. Connect your DC motor (or DC load) to the motor terminals as indicated on the wiring diagram.
2. Connect a voltage of 1.8V-15V DC to the circuit making sure of the correct polarity of the connection. Note that the voltage applied to the motor will be supply voltage applied to the circuit. It is recommended to add an appropriately rated fuse in line with the positive supply in order to protect the circuit from any possible short circuits.
3. You can now control the speed of the motor through potentiometer.
Important Notes： An appropriately rated fuse (rated a little higher than the maximum current you expect to draw) is recommended to ensure safe operation. The controller is safe with a self-recovery fuse 2A. It will be damaged if connect the supply voltage with wrong polarity. Double check all connections before applying power and always turn off the power supply before making any wiring changes
randy
Reviewed in the United States on January 12, 2025
works as expected
Customer
Reviewed in the United States on February 16, 2024
These little things worked great. Use them to drop 5 volt USB down to the 1.5 that I needed to slow a motor. The adjustability was fantastic. Super compact package. I would not overdrive the current on these because I don't see any heat sinks. The only downside was the shaft could have been a little longer. Used it to go through a fairly thin piece of plastic and didn't have any extra thread.
David Nelson
Reviewed in the United States on January 22, 2024
got the two pack. with no load applied, both worked. when i added the load (a PC fan bank), they stopped regulating and went to straight pass through. i tested my current for the fans using a DMM and it was only 0.8A, well below the 2A capacity of the regulator.
Be Be
Reviewed in the United States on September 3, 2023
The images don't match the product that's shipped.The side of the PCB where the dial control is, extends too far out, such that it's not possible to secure the controller in a device using the nut provided. That is, the threading doesn't extend through the hole in my device because the PCB prevents it from fully going through the hole.
dave
Reviewed in the United States on September 18, 2023
They worked well
pidloop
Reviewed in the United States on August 19, 2023
I'm using one of these as the power controller for a Z scale model train. For power I am using a 3S lipopoly battery at around 11.1V nominal. Everything works well, I get fine speed control and I appreciate the full off position on the rotary control. Of course for direction control I had to add a DPDT switch but I enjoy DYI anyway. For a more complete picture, I put a 'scope on the output. The PWM is a clean 13.3 kHz (75.2 us period) pulse train ranging from 1.2V minimum (it never drops all the way down to 0) to 11.1V max (no dropout). At the minimum setting the pulse width is 1.4 uS or about 1.9% duty cycle. At full it is 100% (constant DC). Combining the min pulse width and 1.2V minimum voltage, the overall minimum mean voltage is 1.49V and the max mean is 11.1V. The board is nicely constructed. I can see a typical NE555 doing the timing and APM9926A driver FET for the output. Recommended if you need a simple PWM controller.
Luke I.
Reviewed in the United States on November 20, 2023
I bought these little boards to run a small model train test track. They are nice for what they are, and the price is right, but you need to pay attention before you pass power through them. First one of the 2-pack I got just dumped straight source voltage to the output, regardless of where the knob was. Tried the other one and it worked as I expected. Compared the two, and the first had some bad solder work between two pins. I cut what I thought might be the excess off the pins, and the board worked as I thought it should. Now both boards I bought are good. I would buy these again, but don't hook them up to critical components without bench testing first.
T.R.
Reviewed in the United States on April 7, 2023
The potential difference between negative in and out is from 0v to 11,7v. I used a 12v power supply.
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