PWM driver

[rauscher at icst.com]

I can throw together a circuit to do this. I've used PWM for DC motor
control circuits before. How about a low side driver, it would be easier
to do. (This is a switch that grounds the motor).

For input control, just an analog 0-12V for stopped to full on, with
all speeds in-between.

I'll get it together and scanned hopefully before the week is out.

Oh, do fuel pumps really draw 15 Amps? Ouch.

One word of caution thou, PWM is electrically noisy. You will want to
put the controller close to the pump, as not to disrupt every electrical
device in your car.

BobR.



<snip>

Tom Sharpe wrote:

>How do you PWM a 15 amp load??? Someone design a circuit please. Can the driver
>board be mase to work??
>
>TIA  TOM
>
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