Hi,

I am a mere underling, and am amazed by the things you guys (& gals) on here know!

I wondered if I could get some help with a simple 12v DC 7amp Motor (100psi water pump) I want to control;

I would like to adjust the speed of the pump so the battery lasts longer, and to adjust the flow. I'm guessing a PWM is what I'd need.

I've seen this on eBay, but wondered if it would be worth buying?
>>> eBay Motor Control PWM <<<

What do you guys think?

Any advice welcomed!!

 

Just wild guess: US $ 3 in parts should do it, but the one illustrated should work fine.

 

For what it is, the price is fair. I'd rather build one.

 

Thanks Dudes...

there any way of telling if it work with my pump??

I.E. frequency of PWM etc? Does this have to be specific, or do you just have to make sure the amperage is enough??

Sorry for dumb Q's...

Thanks..

 

Bump..



Anyhelp guys???

Cheers

 

Only issue you may have (and may not) is that the starting current of a motor is often two or three times the running current. If you motor "runs" at 7A, and the controller is rated at 15A continuous, hopefully it will handle the brief starting current.

Ken