[time-nuts] Parallel voltage regulators
brooke at pacific.net
Thu Oct 25 00:02:33 EDT 2007
When I had that problem a work around was to parallel a battery with the power
supply (using a diode). The battery supplies the extra current while the oven
warms up. If the power supply voltage is a little higher than the battery
voltage when the oven is warmed up then the diode disconnects the battery. A
resistor shunting the diode will then set a small charging current.
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Tom Clifton wrote:
> Thanks for all the good feedback! Looks like the LM388
> is the way I'm to go. Got to toddle off to the local
> surplus shop in the morning to see what they have in
> the goodie bin. If they don't have it eBay is full of
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