FW: PSU smoothing caps

Clive Jones CJones at sni.co.uk
Thu Feb 29 20:27:00 CET 1996

Hi Chaps

I'm wracking my brains here trying to remember how to work out the value   
of the smoothing capacitor *before* the voltage regulator for a PSU I'm   
building, the parameters are

mains freq=50Hz supply voltage 240vac, transformer winding output 11.9v   

The PSU design provides +5 volts via a LM323 - max current pull is 3 Amps   
 - primary smoothing cap value=???????

any help appreciated


/<c.jones at sni.co.uk> / ...and on the 8th day
/01344 850213 Work   / God made Synthesizers
/01344 850209/291 Fax/ ...and God was called
/01628 602106 Home   /   ' Tom Oberheim '

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