[AMPS] PS diode equalizing

[Rich Measures]

>
>Hi Vic, from 1996 ARRL Handbook, DIODES IN SERIES, page 11.9:
>
>"There used to be a general recommendation to place a resistor across each
>diode in the string to equalize PIV drops. With modern diodes, this practice
>is no longer necessary."   It goes on to explain why then concludes with:
>"In fact, shunt resistors can actually create problems..." and why again.
>
>The 1N5408 qualifies.  I use 16 of these in each leg of a fullwave putting
>out 4KV - no probs.
>
With 16 diodes per leg and 4kV out, each diode c. 1/4 of its rated piv. . 
 I would be happy with a bit less safety factor,  Bill


Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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