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Re: Diode Rectifier stacks

Original poster: "Jim Lux" <jimlux@xxxxxxxxxxxxx>


----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, March 04, 2005 9:12 PM
Subject: Diode Rectifier stacks


> Original poster: tesla <tesla@xxxxxxxxxxxxxxx>
>
> Team
> Building a DC coil from MOT with resonant charging thru choke.
>
> Not planning to use equalising caps and resistors across the 1N4007's but
> rather adding enough diodes so that each is running at 45% of rated PIV.
> Anybody had success with this approach or otherwise

Assuming your diodes are coming from the same mfr lot, (and probably even if
not), just using lots more diodes (rather than R and C) is the preferred
technique.
The "equalizing r and c" technique is really a holdover from the days when
semiconductor parameter variations were greater, when diodes were more
expensive than resistors and capacitors, etc.

> Best
> Ted L in NZ
>
>