[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Bleed resistors for MMC caps
Original poster: "Harold Weiss" <hweiss-at-new.rr-dot-com>
I recently was at Dr. R's shop and he was working on a pair of large
multipliers using Geek MMC strings for the caps. They were picking up
charge on their own, and every cap had to be grounded as they worked on it.
I think the caps were picking up the charge from the PE they were mounted
on. I'm not sure if bleeders can be used with a multiplier circuit, but
for any other use, put them in.
David E Weiss
> Original poster: "Mark Broker" <mbroker-at-thegeekgroup-dot-org>
> Each capacitor needs its own bleeder resistor. Placing one large resistor
> across the MMC could lead to a condition in which capacitors in a string
> could be individually charged but yet maintains a net charge of zero. I'm
> not certain what conditions these are, but I still think it's a very good
> idea to use individual bleeder resistors.
> The transformer will actually short the entire capacitor when the power is
> removed anyway, so your relay wouldn't have much effect.
> Mark Broke
> Chief Engineer, The Geek Group