[sdiy] power supply reverse polarity protection

[Neil Johnson]

Hi,

Why not use the usual trick of a MOSFET?

For example, see
	http://www.maxim-ic.com/appnotes.cfm/appnote_number/2012

Just need another one for the -ve rail.  Only one transistor per rail,
nothing gets hot.  Especially good for battery-powered circuits as you
don't lose any volts across the diode.

Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
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