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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Please explain doubling posted by Jon Risch on July 15, 2000 at 19:54:17:
I thought that two opposite and equal voltages cancled each other out. (+2) + (-2) = 0 .As an example, the plus and minus voltage rails in an amp give you zero volts on the output.Were would you place your test equipment probes on a common-mode choke to measure this doubled voltage? I know you cannot measure line voltage as most chokes core material will not support 60cy transformer action from the one winding into the other.
Is not the canceling out effect of a C-M choke the real reason it is used in the first place. It looks like almost no inductance to diff. signals (low Z) and its rated value of inductance to C-M signals (high z).
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Follow Ups
- Re: Please explain doubling - Ed Sommer 09:54:14 07/16/00 (14)
- Re: Please explain doubling - Jon Risch 22:21:38 07/16/00 (13)
- No doubling measured - Ed Sommer 18:40:17 07/17/00 (7)
- Re: No doubling measured - Jon Risch 19:09:10 07/18/00 (6)
- The "Big Thing" - Ed Sommer 10:47:16 07/20/00 (4)
- Re: The "Big Thing" - Jon Risch 16:58:10 07/21/00 (3)
- Re: The "Big Thing" - Ed Sommer 10:47:23 07/22/00 (2)
- Examples - Pete Fleming 18:32:28 07/22/00 (1)
- Re: Examples - Ed Sommer 10:30:15 07/23/00 (0)
- Re: No doubling measured - Ed Sonner 10:38:31 07/19/00 (0)
- Re: Please explain doubling - john curl 10:58:22 07/17/00 (1)
- Mr. Curl - Ed Sommer 10:31:15 07/18/00 (0)
- Still can't see doubling - Ed Sommer 10:30:34 07/17/00 (2)
- Re: Still can't see doubling - Allan Moyse 22:25:49 07/18/00 (1)
- Re: Still can't see doubling - madalo 16:34:30 07/21/00 (0)
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