On Sun, 07 Oct 2012 20:45:01 -0700, Jim Thompson
wrote:

On Sun, 07 Oct 2012 19:26:05 -0700, John Larkin
wrote:

On Sun, 07 Oct 2012 18:21:58 -0700, Jim Thompson
wrote:

On 08 Oct 2012 01:09:30 GMT, Jim Mueller wrote:

On Sun, 07 Oct 2012 15:59:17 -0700, Jim Thompson wrote:

Critiques, suggestions welcome...

http://www.analog-innovations.com/SE...ype_Supply.pdf

Sand in air ignored.

...Jim Thompson

Your simulation doesn't include your power input source, presumably a
rectifier, based on your label.

Full-wave rectified, straight off AC line. +VRECT to -VDC

You didn't show the Vrect waveform. What pulls it down? A bridge
rectifier without some pulldown can't keep sloshing charge into/out of
the current limiting capacitor.

Replace Vrect with a floating AC supply and a bridge rectifier, and it
won't work.

Says the fraud. There's lots of pulldown... it's a PFC supply.

...Jim Thompson

Is the PFC supply on all the time? If so, what is this circuit needed
for? It certainly can't be used to start up the PFC, if it needs the
PFC for pulldown.


--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

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