So if I have a DC-DC voltage regulator that expects 7 to 13.8V on the input, will I fry anything by feeding it 17 volts?
Not sure what the voltage regulator output is (this is a consumer electronics device that uses about 500mW). The 17V input is coming from an unregulated wall wart rated for 12V @ 1000mA, so I imagine the voltage drops a little bit when the device is turned on.
Thanks!
from
if 13.8v is the upper limit of its acceptabel input, quite likely. Use one suitably rated.
NT
Put a dummy load on the walwart, to simulate your regulator, measure the V and take it from there.
Without knowing more about the design of your reg............
martin
Opinions are like assholes -- everyone has one
It looks like the wall wart is unregulated, and droops to 12V at rated current - a shunt regulator at 13.75 or so volts would make the wall wart usable, although it might be more hassle than it's worth.
Cheers! Rich
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