Ignition coil - Revision history

Benstern: added links

2008-06-01T16:36:23Z

added links

← Older revision		Revision as of 11:36, 1 June 2008
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	An '''ignition coil''' is the ignition source used in most ~~gas~~ engines, and can be adapted for use as a spudgun ignition. Almost any coil will work as long as it's in good condition. Ignition coils will give powerful sparks, which means most circuits will also require a lot of power (the camera flash circuit is an exception).		An '''ignition coil''' is the [[ignition source]] used in most [[gasoline]] engines, and can be adapted for use as a spudgun ignition. Almost any coil will work as long as it's in good condition. Ignition coils will give powerful sparks, which means most circuits will also require a lot of power (the camera flash circuit is an exception).

	===Driving circuits===		===Driving circuits===

DK at 05:47, 20 June 2006

2006-06-20T05:47:13Z

← Older revision		Revision as of 00:47, 20 June 2006
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	An '''ignition coil''' is the ignition source used in most gas engines, and can be adapted for use as a spudgun ignition. Almost any coil will work as long as it's in good condition. ~~Ingition~~ coils will give powerful sparks, which means most circuits will also require a lot of power (the camera flash circuit is an exception).		An '''ignition coil''' is the ignition source used in most gas engines, and can be adapted for use as a spudgun ignition. Almost any coil will work as long as it's in good condition. Ignition coils will give powerful sparks, which means most circuits will also require a lot of power (the camera flash circuit is an exception).

	===Driving circuits===		===Driving circuits===

GalFisk: /* Manual switch */ +file

2006-03-25T13:50:18Z

Manual switch: +file

← Older revision		Revision as of 08:50, 25 March 2006
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	====Manual switch====		====Manual switch====

	If the current through the ignition coil is switched on and off manually, the coil will produce a spark every time the current is shut off.		If the current through the ignition coil is switched on and off manually, the coil will produce a spark every time the current is shut off. A crude way to create many sparks in rapid succession consists of using the surface of a file, when one wire is connected to the file and the other raked over its surface, the current will be interrupted many times in rapid succession.

	====Mains dimmer====		====Mains dimmer====

GalFisk: +cat

2006-03-23T16:45:50Z

+cat

← Older revision		Revision as of 11:45, 23 March 2006
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	An ignition coil can be driven by mains power, by connecting it in series with a light dimmer and a motor start capacitor. The dimmer should be set at about 50% for maximum voltage. The dimmer will chop the mains power and discharge the capacitor through the coil. This circuit is dangerous since it carries mains voltage on all parts, and should NOT be used for spudgun ignition.		An ignition coil can be driven by mains power, by connecting it in series with a light dimmer and a motor start capacitor. The dimmer should be set at about 50% for maximum voltage. The dimmer will chop the mains power and discharge the capacitor through the coil. This circuit is dangerous since it carries mains voltage on all parts, and should NOT be used for spudgun ignition.
			[[Category:Ignition sources]]

GalFisk: /* Camera flash */ fixed link

2006-03-23T16:44:38Z

Camera flash: fixed link

← Older revision		Revision as of 11:44, 23 March 2006
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	====Camera flash====		====Camera flash====

	The voltage from the storage capacitor of a camera flash is dumped through the ignition coil. See the [[[camera flash]] article for circuit details.		The voltage from the storage capacitor of a camera flash is dumped through the ignition coil. See the [[camera flash]] article for circuit details.

	====Manual switch====		====Manual switch====

GalFisk: +dimmer, editing, etc

2006-03-23T16:44:17Z

+dimmer, editing, etc

← Older revision		Revision as of 11:44, 23 March 2006
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	An '''ignition coil''' is the ignition source used in most gas engines, and can be adapted for use as a spudgun ignition. ~~To generate~~ a ~~high voltage pulse,~~ the current ~~in the~~ primary ~~coil needs~~ to be ~~pulsed~~.		An '''ignition coil''' is the ignition source used in most gas engines, and can be adapted for use as a spudgun ignition. Almost any coil will work as long as it's in good condition. Ingition coils will give powerful sparks, which means most circuits will also require a lot of power (the camera flash circuit is an exception).

			===Driving circuits===

			An ignition coil needs a pulsed current through its primary winding to generate the high voltage, so it cannot simply be connected to a car battery. These are the most common ways to drive an ignition coil:

	~~===Driving circuits:===~~
	====Buzzer relay====		====Buzzer relay====

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	If the current through the ignition coil is switched on and off manually, the coil will produce a spark every time the current is shut off.		If the current through the ignition coil is switched on and off manually, the coil will produce a spark every time the current is shut off.

			====Mains dimmer====

			An ignition coil can be driven by mains power, by connecting it in series with a light dimmer and a motor start capacitor. The dimmer should be set at about 50% for maximum voltage. The dimmer will chop the mains power and discharge the capacitor through the coil. This circuit is dangerous since it carries mains voltage on all parts, and should NOT be used for spudgun ignition.

GalFisk: +more info, -stub (though it can still use more work ,and a nice pic)

2006-03-23T16:34:07Z

+more info, -stub (though it can still use more work ,and a nice pic)

← Older revision		Revision as of 11:34, 23 March 2006
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	===Driving circuits:===		===Driving circuits:===
	====Buzzer relay====		====Buzzer relay====

			A relay is connected so that when it activates, it will cut its own current. This will cause it to oscillate, and the resulting pulsed current can be fed to the ignition coil.

			There are several ways to set up this circuit depending on the configuration of the relay. The most reliable and powerful design uses a relay with two normally closed contacts, where one is connected in series with the relay solenoid to make it oscillate, and the other contact is connected in series with the ignition coil. The contact that closes first upon return should be connected to the ignition coil, so the contacts should be swapped during testing to see which configuration gives the most consistent spark.

	====Electronic oscillator circuit====		====Electronic oscillator circuit====

	An oscillator circuit, typically made up of a [[555 timer]] circuit and switching transistor, is used to interrupt the current through the coil with a frequency of 5-20 kHz.		An oscillator circuit, typically made up of a [[555 timer]] circuit and switching transistor, is used to interrupt the current through the coil with a frequency of 5-20 kHz.
	====[[Camera flash]]====
	The voltage from the storage capacitor of a camera flash is dumped through the ignition coil.		====Camera flash====

			The voltage from the storage capacitor of a camera flash is dumped through the ignition coil. See the [[[camera flash]] article for circuit details.

	====Manual switch====		====Manual switch====

			If the current through the ignition coil is switched on and off manually, the coil will produce a spark every time the current is shut off.
	~~{{stub}}~~

Benstern: duplicate

2005-12-21T03:55:13Z

duplicate

← Older revision		Revision as of 22:55, 20 December 2005
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	{{stub}}		{{stub}}
	~~[[Category:Ignition sources]]~~

GalFisk at 19:50, 3 November 2005

2005-11-03T19:50:13Z

New page

An '''ignition coil''' is the ignition source used in most gas engines, and can be adapted for use as a spudgun ignition. To generate a high voltage pulse, the current in the primary coil needs to be pulsed.

===Driving circuits:===
====Buzzer relay====

====Electronic oscillator circuit====
An oscillator circuit, typically made up of a [[555 timer]] circuit and switching transistor, is used to interrupt the current through the coil with a frequency of 5-20 kHz.
====[[Camera flash]]====
The voltage from the storage capacitor of a camera flash is dumped through the ignition coil.
====Manual switch====

{{stub}}
[[Category:Ignition sources]]