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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 13, 2017 at 11:46:34:
yes but what was bugging me is that the amp is totally isolated, no connection to earth so this is a virtual gnd. I conclude that there must be a potential difference between the terminals on a cap in order for it to discharge. Education is welcome.
Earth ground is not involved. What you are doing is discharging the DC stored energy in the cap by connecting a load, resistor, across the B+ and B- terminals, leads, of the cap.
The cap is connected in parallel with the B+ and B- rails, legs, of the DC power supply. The power supply, where a metal chassis is used, the B- rail of the power supply is connected to the metal chassis. The metal chassis becomes the ground plane for the power supply.
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Follow Ups
- RE: Discharge across the terminals of the electrolytic cap..... nt. - jea48 08:34:46 01/14/17 (1)
- RE:Thanks Jea nt - jk 11:27:11 01/16/17 (0)
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