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19th July 2004, 08:52 AM
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#1 |
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Account Disabled
Join Date: Mar 2003
Location: Vancouver
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Bipolar PSU capacitor
In power supplies with + and - rails, sometimes I've seen schematics where a capacitor instead of going from the rail to ground, goes between the two rails. What's the difference, and which is the best practice?
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26th July 2004, 06:31 PM
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#3 |
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diyAudio Member
Join Date: Dec 2003
Location: Orange County, CA
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Best Practice
Best practice is to use two caps, each connected to ground. A signle cap does not give you a low impedance ground path and most all electronic circuits depend on the power supply acting as an AC ground.
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Dan Fraser |
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