Voltage limiting w/ C40 [RE-wrenches]

[Windy Dankoff, Dankoff Solar]

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Brad,

A voltage regulator chip is a cheap and simple way to drop the 
voltage. Unlike a true voltage converter, it drops the excess volts 
by dissipating heat (wasting the energy), but in this case, so what?

These chips are available from electronic parts suppliers for just a 
few bux. You wire in a small control resistor according to a chart 
(or use a pot) to set the regulating voltage. The ones I've seen take 
up to 35V input.

You'll need to multiply the max. volts that you drop by the current = 
watts of heat to dissipate. Then, bolt it to a heat sink sufficient 
to dissipate that many watts.

Windy


At 10:52 PM +0000 2/9/04, Brad Bassett wrote:
>Thanks for the clarification on decoupling. Since mine doesn't have a
>problem until it's over 30v I expect the pump is just fine, I just need
>less voltage to it. I approached Zane but they do not want any of their
>products used with pumps. I have an old C-40 in my possesion, hence the
>question if it would work. It may be overkill, but I need something
>soon, then can put together something else later.
>
>Thanks,
>Brad
>AEE

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