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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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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: Discharge across the terminals of the electrolytic cap..... nt. posted by jk on January 12, 2017 at 13:51:46:
Think of it this way, in a charged capacitor, there is "charge" accumulated on the plate we think of as the positive terminal. There is a similar "lack of charge" (for want of a better way of saying it and without getting too technical) on the negative terminal. If you were to connect these two terminals directly, there would be an explosive and instantaneous transfer of charge toward an equilibrium state. If you connect the two terminals via a large value resistor (e.g., 270K ohms or so), then the equilibrium state is reached in a more controllable manner over a longer period of time. If you don't provide for that, the charge just sits there and the capacitor is a potential source of a dangerous jolt. Ground has nothing to do with this. The capacitor is a self-contained system.
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Follow Ups
- RE: Discharge across the terminals of the electrolytic cap..... nt. - Lew 17:54:59 01/15/17 (1)
- RE: Discharge across the terminals of the electrolytic cap..... nt. - jk 11:26:06 01/16/17 (0)
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