Glenn2;405302 Wrote: > Hi Sean, > Thanks for the input. > > Under load (before the regulator shuts down) there's still over 11V. > That's enough to feed a 7808->7805 combination I would have thought. > The dropout would be shared among the two regulators, no? (and 3V each > should be fine.) > > I'd be halving the dropout voltage as far as the 7805 was concerned. > Or am I missing something? > > Cheers, > Glenn
I agree, if there's excessive headroom to begin with then I think that would be fine. There may also be some benefit to having a "preregulator". Note that your total power dissipation has not changed - but it is better balanced across the heat sink, and that may help. This sounds like it was a craptastic power supply as delivered. But nothing too hard to fix... -- seanadams ------------------------------------------------------------------------ seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3 View this thread: http://forums.slimdevices.com/showthread.php?t=61090 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
