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Old 09-06-2009, 11:24 PM
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MrB (Simon)
Old Man Yells at Cloud

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Join Date: Jan 2007
Location: Rockingham WA
Posts: 3,435
Yes, exactly that, a buck converter.
Shouldn't be any more complex than what is already being discussed here.
The uC is already being discussed to generate the PWM.
The switching MOSFET is already there too, all that is needed is a freewheel diode, a cap and inductor(or more) for the filter network and it's done.
The purely resistive load simplifies things.
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