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I got this to control the speed of a 24v PWM fan in a theatre amplifier I'm using for domestic use... though I have another I use for PC fan control. Its very small easily mounted and controls the spin RMS very well indeed. A lovely wide range of control and very effective. I can't fault it, and though I can't speak to durability as I've only had it a few months, so far it has done exactly what it says effortlessly. Doesn't get hot or even warm and certainly seems to handle the demands well. Cons: There is no voltage limit you can set, so you may be in danger of over-volting your fans and killing them if your not careful, a jumper or switch to limit 12v - 24v- 35v would be good, but that would of course increase the cost a bit. Anyway, great device which I definitely recommend
Verified purchase: Yes | Condition: New
This circuit was purchased to run a 1,6 Amp motor from a 5 V supply. On setting up the PWM (pulse width modulation) signal was seem at the output terminals so after switching off the circuit I connected the motor and switched on again. Nothing. Checked for signal at the output terminals, no signal. Disconnected the motor - PWM signals appeared at the output terminal again. My guess is the circuit can't supply 1.6 Amps, never mind the 5 Amps it was supposed to supply. If I can find some details on the output MOSFET I might try changing it to a different type, otherwise the circuit will end up as scrap.
Verified purchase: Yes | Condition: New
This motor controller works well - but a star knocked off for some minor niggles 1 - Mounting it - the single mounting screw hole is not really usable as it is under the capacitor. 2 - As the vendor listing says connect the power back to front and it will fry the board, and could take your PSU out. This board is not diode protected. I tested this as my 3D printer main board has the fan power wiring reversed red&black - managed to blow the 10Amp fuse on the main board 12V rail.
Verified purchase: Yes | Condition: New
Great price for a nicely made item. Can't say how it would handle top voltage and current rating but using it as a model railway controller for n gauge it works fine. The addition of a switch to change direction gives a workable controller at a fraction of the cost of a commercial item. Also has a self resetting fuse for those inevitable short circuits.
Verified purchase: Yes | Condition: New
Really good control of small DC motors. I used mine to set a constant speed on the other lane of the Scalextric set. Good consistent results and so compact.
Verified purchase: Yes | Condition: New