home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 71,082 of 72,318   
   Jeroen Belleman to Cursitor Doom   
   Re: Purpose of cap on ac line of PC powe   
   05 May 19 22:37:25   
   
   From: jeroen@nospam.please   
      
   On 2019-05-05 18:29, Cursitor Doom wrote:   
   > On Sat, 04 May 2019 17:18:42 +0200, Jeroen Belleman wrote:   
   >   
   >> 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.   
   >   
   > *Part of* interference suppression. Their should be some proper filtering   
   > in there besides.   
   >   
      
   If you have something truly useful to contribute, do so.   
   Otherwise you don't matter.   
      
   Jeroen Belleman   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca