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Re: (Fwd) bleeder resistors used with MMC



Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

At 12:12 PM 11/2/2006, you wrote:

Terry,

I've spent a lot of time surching the List archives and so far have
not found an answer to my question.  What would you recommend
as the best size (in megohms I would presume), and wattage level
to use with an MMC stack?  I just bought 12 of the CD-942's and
will be using all of them in series for a final cap rating of .012 mfd.

I know many folks have used resistors to equalize the voltage
distribution in these series strings.  Unfortuantely, I never saved
any of those posts to the List.  Any help or advice you can give
will be greatly appreciated.

Best regards,
Bill Wysock.


I have been using DigiKey # 4.7MH-ND. I put two in series to help get enough lead length to go around the cap.

http://drsstc.com/~sisg/files/BigSISGCoil/MMCpics/Inside-0.JPG

So each cap has two 4.7M ohm 1/2 watt resistors in series. The RC time constant is 9.4e6 x 150e-9 = 1.4 seconds

Cheers,

        Terry