Capacitor - Revision history

Carlb: /* Capacitors */

2009-09-19T08:40:53Z

Capacitors

← Older revision		Revision as of 01:40, 19 September 2009
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	A capacitor, also known as a condenser, is a device that stores energy in an electrical field. Capacitors are open circuits to DC current, but their [[impedance]] drops as AC current passing through them has its frequency increased. Extremely high frequency currents see capacitors as short circuits.		A capacitor, also known as a condenser, is a device that stores energy in an electrical field. Capacitors are open circuits to DC current, but their [[impedance]] drops as AC current passing through them has its frequency increased. Extremely high frequency currents see capacitors as short circuits.

	In some ways, capacitors behave as the opposite of [[inductor]]s. This property is critically important to the circuit design of [[~~oscillators~~]].		In some ways, capacitors behave as the opposite of [[inductor]]s. This property is critically important to the circuit design of [[oscillator]]s.

	Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.		Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.

Carlb: /* Capacitors */

2009-09-19T08:40:28Z

Capacitors

← Older revision		Revision as of 01:40, 19 September 2009
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	A capacitor, also known as a condenser, is a device that stores energy in an electrical field. Capacitors are open circuits to DC current, but their [[impedance]] drops as AC current passing through them has its frequency increased. Extremely high frequency currents see capacitors as short circuits.		A capacitor, also known as a condenser, is a device that stores energy in an electrical field. Capacitors are open circuits to DC current, but their [[impedance]] drops as AC current passing through them has its frequency increased. Extremely high frequency currents see capacitors as short circuits.

	In some ways, capacitors behave as the opposite of [[~~inductors~~]]. This property is critically important to the circuit design of [[oscillators]].		In some ways, capacitors behave as the opposite of [[inductor]]s. This property is critically important to the circuit design of [[oscillators]].

	Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.		Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.

Carlb: Capacitors moved to Capacitor

2009-04-11T01:47:50Z

Capacitors moved to Capacitor

← Older revision	Revision as of 18:47, 10 April 2009
(No difference)

Carlb: /* Fixed capacitor comparisons */

2009-04-09T01:20:29Z

Fixed capacitor comparisons

← Older revision		Revision as of 18:20, 8 April 2009
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	\|Vacuum capacitors use highly evacuated glass or ceramic chamber with concentric cylindrical electrodes.\|\|Extremely low loss. Used for high voltage high power RF applications, such as transmitters and induction heating where even a small amount of dielectric loss would cause excessive heating. Can be self-healing if arc-over current is limited.\|\|Very high cost, fragile, physically large, and relatively low capacitance.		\|Vacuum capacitors use highly evacuated glass or ceramic chamber with concentric cylindrical electrodes.\|\|Extremely low loss. Used for high voltage high power RF applications, such as transmitters and induction heating where even a small amount of dielectric loss would cause excessive heating. Can be self-healing if arc-over current is limited.\|\|Very high cost, fragile, physically large, and relatively low capacitance.
	\|}		\|}


			{{electronics}}

TimVK4YEH: added capacitive reactance formula

2008-10-31T20:39:10Z

added capacitive reactance formula

← Older revision		Revision as of 13:39, 31 October 2008
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	Where <math>C</math> is the capacitance, <math>\omega</math> is <math>2 \pi f</math>, and <math>f</math> is the frequency. <math>j</math> is "operator j" from [[phasor analysis]].		Where <math>C</math> is the capacitance, <math>\omega</math> is <math>2 \pi f</math>, and <math>f</math> is the frequency. <math>j</math> is "operator j" from [[phasor analysis]].

			In practical terms this leads to:

			<math> X_c = \frac {1} {2\pi F C} </math> where

			*<math> X_c </math> is capacitive reactacnce
			* F is the frequency of operation in Hertz
			* C id the capacitance in Farads

	== Capacitor circuit symbols ==		== Capacitor circuit symbols ==

TimVK4YEH: Protected "Capacitors" [edit=autoconfirmed:move=autoconfirmed]

2008-08-21T19:28:26Z

Protected "Capacitors" [edit=autoconfirmed:move=autoconfirmed]

← Older revision	Revision as of 12:28, 21 August 2008
(No difference)

TimVK4YEH: Reverted edits by 93.174.93.220 (Talk); changed back to last version by YL

2008-08-21T19:27:37Z

Reverted edits by 93.174.93.220 (Talk); changed back to last version by YL

← Older revision		Revision as of 12:27, 21 August 2008
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	Related wiki pages: [[Inductors]], [[Resistors]], [[Transformers]]		Related wiki pages: [[Inductors]], [[Resistors]], [[Transformers]]

	~~SqvFXg <~~a ~~href="http://tilyqygxknmj~~.~~com/">tilyqygxknmj</a>~~, [~~url=http://fqhdsmlzunjv.com/~~]~~fqhdsmlzunjv[/url~~], [~~link=http://rvithbosgibr~~.~~com/~~]~~rvithbosgibr[/link~~], ~~http://llbprlpiupoh~~.~~com/~~		== Capacitors ==

			A capacitor, also known as a condenser, is a device that stores energy in an electrical field. Capacitors are open circuits to DC current, but their [[impedance]] drops as AC current passing through them has its frequency increased. Extremely high frequency currents see capacitors as short circuits.

			In some ways, capacitors behave as the opposite of [[inductors]]. This property is critically important to the circuit design of [[oscillators]].

			Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.

			Dielectric materials commonly used in capacitors include air, glass, ceramic, paper, polycarbonate, and polyester.

	== Capacitance ==		== Capacitance ==

93.174.93.220: /* Capacitors */

2008-08-21T16:07:37Z

Capacitors

← Older revision		Revision as of 09:07, 21 August 2008
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	Related wiki pages: [[Inductors]], [[Resistors]], [[Transformers]]		Related wiki pages: [[Inductors]], [[Resistors]], [[Transformers]]

	=~~= Capacitors ==~~		SqvFXg <a href="http://tilyqygxknmj.com/">tilyqygxknmj</a>, [url=http://fqhdsmlzunjv.com/]fqhdsmlzunjv[/url], [link=http://rvithbosgibr.com/]rvithbosgibr[/link], http://llbprlpiupoh.com/

	~~A capacitor, also known as~~ a ~~condenser~~, ~~is a device that stores energy in an electrical field~~. ~~Capacitors are open circuits to DC current, but their~~ [~~[impedance~~]~~] drops as AC current passing through them has its frequency increased. Extremely high frequency currents see capacitors as short circuits.~~

	~~In some ways~~, ~~capacitors behave as the opposite of~~ [~~[inductors~~]~~]. This property is critically important to the circuit design of [~~[~~oscillators]~~].

	~~Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.~~

	~~Dielectric materials commonly used in capacitors include air, glass, ceramic, paper, polycarbonate~~, ~~and polyester~~.

	== Capacitance ==		== Capacitance ==

YL: Rephrased dielectric statement.

2008-03-13T22:05:32Z

Rephrased dielectric statement.

← Older revision		Revision as of 15:05, 13 March 2008
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	Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.		Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.

	~~The dielectric~~ materials commonly used in capacitors ~~are~~ air, glass, ceramic, paper, polycarbonate, polyester ~~amongst others~~.		Dielectric materials commonly used in capacitors include air, glass, ceramic, paper, polycarbonate, and polyester.

	== Capacitance ==		== Capacitance ==

YL: /* Capacitors */

2008-03-13T22:04:31Z

Capacitors

← Older revision		Revision as of 15:04, 13 March 2008
Line 7:		Line 7:
	In some ways, capacitors behave as the opposite of [[inductors]]. This property is critically important to the circuit design of [[oscillators]].		In some ways, capacitors behave as the opposite of [[inductors]]. This property is critically important to the circuit design of [[oscillators]].

	Fundamentally, ~~they~~ consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.		Fundamentally, capacitors consist of two conducting plates separated by an insulating material. The insulating material is known as the '''dielectric'''.

	The dielectric materials commonly used in capacitors are air, glass, ceramic, paper, polycarbonate, polyester amongst others.		The dielectric materials commonly used in capacitors are air, glass, ceramic, paper, polycarbonate, polyester amongst others.


	== Capacitance ==		== Capacitance ==