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#22
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Holy Moly -- Residual Electricity????
Gordon wrote:
wrote in message news Capacitors. capacitors usually discharge when the current is switched off - their main job is to smooth current, not to store volts.... What utter crap. John. |
#23
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Holy Moly -- Residual Electricity????
"John" wrote in message ... : Gordon wrote: : wrote in message : news : Capacitors. : : : : capacitors usually discharge when the current is switched off - their main : job is to smooth current, not to store volts.... : : : : What utter crap. : : John. Not only is it utter crap, the arrogant little prick gets bent out of shape when you call him on it. |
#24
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Holy Moly -- Residual Electricity????
Tom Lake wrote:
"RnR" wrote in message ... On Mon, 5 Nov 2007 16:36:06 -0500, "Tom Lake" wrote: You can get some nasty burns from a TV that's unplugged due to those things! Tom Lake Almost sounds like you speak from experience grin. Yes, I have indeed supped at Zeus' table and tasted his electronic wrath! 8^) Tom "Black Hand" Lake Ever charged up a nice sized unit and tossed it to a "friend".... How about plugging one into AC and seeing how bright a flash you can make? The fun of electronics education.... -- Steve W. Near Cooperstown, New York NRA Member Pacifism - The theory that if they'd fed Jeffrey Dahmer enough human flesh, he'd have become a vegan. |
#25
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Holy Moly -- Residual Electricity????
In article ,
says... Another spoof! Not at all, if the system won't come out of suspend properly, since it's not a Windows issue, it's almost always the result of bad quality of the motherboard / BIOS. Seen it hundreds of times, and that's one reason to not buy cheap crap. -- Leythos - Igitur qui desiderat pacem, praeparet bellum. - Calling an illegal alien an "undocumented worker" is like calling a drug dealer an "unlicensed pharmacist" (remove 999 for proper email address) |
#26
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Holy Moly -- Residual Electricity????
On Nov 6, 10:50 am, "Androcles" wrote:
"Gordon" wrote in message ...: wrote in message :news : : Capacitors. : : : : capacitors usually discharge when the current is switched off - their main : job is to smooth current, not to store volts.... That shows how much you know -- which is zilch. He's right. In a computer that's what they're for. Sure they can still store charge without any current flowing, but that's not their intended purpose. Many of them will automatically discharge straight away into the heavy loads they're connected to. But in the power supply are capacitors which do retain their charge after switching off. Not sure what this has to do with stopping the computer from working, clearly there's an actual problem that should be fixed to prevent it happening again. |
#27
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Holy Moly -- Residual Electricity????
No he's not. Capacitors do NOT smooth current. They reduce or eliminate
voltage fluctuations. wrote in message oups.com... On Nov 6, 10:50 am, "Androcles" wrote: "Gordon" wrote in message ...: wrote in message :news : : Capacitors. : : : : capacitors usually discharge when the current is switched off - their main : job is to smooth current, not to store volts.... That shows how much you know -- which is zilch. He's right. In a computer that's what they're for. Sure they can still store charge without any current flowing, but that's not their intended purpose. Many of them will automatically discharge straight away into the heavy loads they're connected to. But in the power supply are capacitors which do retain their charge after switching off. Not sure what this has to do with stopping the computer from working, clearly there's an actual problem that should be fixed to prevent it happening again. |
#28
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Holy Moly -- Residual Electricity????
Where have you seen it hundreds of times? Give facts not emotions.
"Leythos" wrote in message . .. In article , says... Another spoof! Not at all, if the system won't come out of suspend properly, since it's not a Windows issue, it's almost always the result of bad quality of the motherboard / BIOS. Seen it hundreds of times, and that's one reason to not buy cheap crap. -- Leythos - Igitur qui desiderat pacem, praeparet bellum. - Calling an illegal alien an "undocumented worker" is like calling a drug dealer an "unlicensed pharmacist" (remove 999 for proper email address) |
#29
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Holy Moly -- Residual Electricity????
"Unknown" wrote:
No he's not. Capacitors do NOT smooth current. They reduce or eliminate voltage fluctuations. A power supply in any electronic gizmo changes 110V (usually) AC to one or more voltages of DC, generally something like 5V - 20V, I think. Anyway, the voltage changing is done by a transformer. The lower-voltage AC from the secondary coil of the transformer is then fed to one (or sometimes more) rectifiers. That's a circuit component that allows current to flow in only one direction. Now you have DC, but very lumpy DC: it oscillates between no current at all and the required voltage. Not much equipment can use the juice in that state. So it needs to be "smoothed" (that is the term that's used). That is accomplished by putting a capacitor - usually a pretty large electrolytic capacitor - across the line. The capacitor stores charge when the voltage goes up and releases it as the voltage drops, thereby smoothing out the peaks and valleys. -- Tim Slattery MS MVP(Shell/User) http://members.cox.net/slatteryt |
#30
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Holy Moly -- Residual Electricity????
Even more amusing is dynamic RAM that uses the charge on
a capacitor to store bits. http://en.wikipedia.org/wiki/Dynamic..._access_memory "Unknown" wrote in message et... : No he's not. Capacitors do NOT smooth current. They reduce or eliminate : voltage fluctuations. : wrote in message : oups.com... : On Nov 6, 10:50 am, "Androcles" wrote: : "Gordon" wrote in message : : ...: wrote : in message : : :news : : : : Capacitors. : : : : : : : : capacitors usually discharge when the current is switched off - their : main : : job is to smooth current, not to store volts.... : : That shows how much you know -- which is zilch. : : He's right. In a computer that's what they're for. Sure they can still : store charge without any current flowing, but that's not their : intended purpose. Many of them will automatically discharge straight : away into the heavy loads they're connected to. But in the power : supply are capacitors which do retain their charge after switching : off. : : Not sure what this has to do with stopping the computer from working, : clearly there's an actual problem that should be fixed to prevent it : happening again. : : : : |
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