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| sci.electronics.basics | Elementary questions about electronics | 72,318 messages |
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| Message 71,071 of 72,318 |
| Jeroen Belleman to Bob Engelhardt |
| Re: Purpose of cap on ac line of PC powe |
| 04 May 19 17:18:42 |
From: jeroen@nospam.please On 2019-05-04 17:02, Bob Engelhardt wrote: > I am re-purposing a PC power supply and there is a "0.47k" cap across > the incoming AC line. What's that for? Interference suppression. Google 'X-capacitor'. Before you ask, there is also a 'Y-capacitor'. They're a bit special because they have to conform to pretty strict safety standards. Jeroen Belleman --- SoupGate-Win32 v1.05 * Origin: you cannot sedate... all the things you hate (1:229/2) |
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