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Rectify ac input?




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From:  Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent:  Wednesday, March 04, 1998 11:49 PM
To:  Tesla List
Subject:  Re: Rectify ac input?

Hi Matt,

> From:  Matthew Mills [SMTP:mattmills-at-mindless-dot-com]
> Sent:  Wednesday, March 04, 1998 2:13 PM
> To:  Tesla List
> Subject:  Re: Rectify ac input?
> 
> Correct me If I'm wrong but I would expect the best way to make a High Voltager
> Rectifier would be to use Microwave Diodes (approx. $3) as these are rated between
> 6 and 12kV  and -at-450mA each and so 12 of them set into a bridge arrangement (3 in
> series on each leg) and set in potting tar would make a rather dandy HV rectifier.
> 
> Matt
> (Just fiddling with sparks and arcs in Hamilton New Zealand)
<snip>

Only for mains type frequencies. They behave as resistors at higher 
frequencies because their recovery time is abysmal. I nearly cooked 
some when I tried using them to rectify a rather low power flyback 
supply.

Malcolm