Spehro Pefhany wrote:
>
> At 08:32 PM 3/7/2003 -0800, you wrote:
> >Is there a way to get regulated 15 V from a 7812 12 V regulator ?
>
> The easiest way is to trade it for a 7815. You could also put a
> zener (e.g. 2.7V or 3.3V) from the "GND" pin to ground.


How stable is the quiescent current through the
ground pin throughout the target current range?
If it stays close to 5mA through the whole range
it *may* be possible just to use a resistor to
lift the ground pin 3v above ground and stay
within a couple % of 15v regulation.
-Roman

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