[AUUG-Talk]: Re: [BUGA] Replacing/repairing Apple Powerbook power supply?

Brett Lymn blymn at baesystems.com.au
Mon Jan 16 12:50:05 EST 2006

On Mon, Jan 16, 2006 at 06:46:07AM +1030, Daryl Tester wrote:
> Typically that's the over voltage protection kicking in, specifically
> to avoid the nasty brown smells.  :-) 

I was thinking more of the nasty ones that require a load to start the
oscillator going (I vaguely recall something about the back-emf from
the load being used to turn the main switching transistor off but I
may be mis-remembering)

> Bear in mind I haven't touched
> a switch mode internals for 10+ years, so the state of the art may
> have changed some since then. 

same here...

Brett Lymn

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