I've just been doing some what-ifs with psud and it reports piv exceeded with 1008 at 0.25 secs for some 1000piv diodes....
should I re-jig to get rid of this?
diet : sorted...I put the secondary Tx impedance right and the problem disappeared
PIV
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pre65
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#2
Is there not an option to use two diodes in series ?
Just checked, 2 x 1N4007 = 2,000v
Just checked, 2 x 1N4007 = 2,000v
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Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
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Paul Barker
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#3
Don't worry about it.
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Mike H
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#4
Sounds to me like it's doing a big peak when it's starting up? Took me a long time to learn this usually means "bad step response" (very resonant PSU). Possibly 
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
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Mike H
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#5
PS: but if you put a more realisitc winding resistance in that's probably what it was.
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."