[AMPS] Re: PS diode equalizing

[Rich Measures]

>
>Rich says:
>
>
>>>You may well need to use diodes from adjacent sites
>> >>on the same wafer if you are going to push to the rated voltage  limit,
>>>because of the requirement to get capacities equal. 
>
>
>>?   at 35 or so kHz, this could be important. 
>
>
>With 10pf of reverse capacity, that's 260Mohms of reactance at 60Hz. But at
>1 kV, that's 3.8 microamps of ac. That's of the same order of magnitude,
>perhaps an order higher, than the leakage current. So you can't ignore it.
>
>Same with applying DC.
>
>Never had these problems with 866's!!  Actually, I guess we'd need 872's for
>the currents we're talking about, but they look nice, and you don't need an
>indicator light to tell you that they're on.
>
The smell of ozone would tell you when they were on.  
>
-  cheers, Peter


Rich...

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


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