[Amps] PIV requirement for identical, individual diodes

[Ron Youvan]

   Gary K4FMX Schafer wrote:

>> Just draw a diode bridge circuit and you can easily figure out how much
>> voltage is across each diode. Consider that at any given time one side
>> of the transformer is at ground and the other side is connected to the
>> filter capacitor. Then look at what diodes are reversed biased.

> But the filter capacitor is ALWAYS connected across the transformer with a
> full wave bridge. Any spike from the power line will always be shunted by
> the large filter capacitor. No way for a large spike to reverse bias any of
> the diodes.

   How about when the capacitor is charged to say, +1,600 Volts and the transformer's outingput is 
-1,600 Volts and then an inductive kick causes the transformer outingput to jump to 2,000 Volts or more?
-- 
    73 Ron KA4INM - All E-mail sent to this address shall linger in the Google cloud forever!