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Total 9 documents matching your query.

1. [FOT] alternators (score: 1): Author: "Jack W. Drews" <vinttr4@geneseo.net>; Date: Mon, 14 Aug 2006 16:44:31 -0500; I have a new alternator that charges the battery okay but it creates so much static that it interferes with the electronic ignition and the electronic tach. Just out of curiosity, what goes wrong wit; /html/fot/2006-08/msg00214.html (6,647 bytes)
2. RE: [FOT] alternators (score: 1): Author: "John Herrera" <jrherrera90@hotmail.com>; Date: Mon, 14 Aug 2006 18:10:47 -0400; Dunno about car alternators, but an Avionics guy once told me that if the capacitor in or on an airplane alternator goes south, the ripple frequency that is the "tops" of the rectified three phase s; /html/fot/2006-08/msg00215.html (7,314 bytes)
3. RE: [FOT] alternators (score: 1): Author: Bill Babcock <BillB@bnj.com>; Date: Mon, 14 Aug 2006 15:56:39 -0700; Alternators are high frequency transmitters--it's surprising that anything electronic works close to them. They have a full wave rectifier that converts the relatively low frequency sine wave into sq; /html/fot/2006-08/msg00216.html (7,463 bytes)
4. Re: [FOT] alternators (score: 1): Author: "Tim Murphy" <timmurph@fastbytes.com>; Date: Fri, 18 Aug 2006 17:39:05 -0500; Been out of town so I'm a little late in weighing in on this one but being an Electrical Engineer I had comment. The alternator puts out a 3 phase sine wave, not a square wave. The 3 phase rectifier,; /html/fot/2006-08/msg00317.html (10,730 bytes)
5. RE: [FOT] alternators (score: 1): Author: "Randall Young" <ryoung@navcomtech.com>; Date: Fri, 18 Aug 2006 16:19:38 -0700; Tim, you're assuming the alternator only has two poles. Real units have more than two poles, typically 10 or 14. I have had to add capacitors to auto stereos, to eliminate "alternator whine". Recent; /html/fot/2006-08/msg00318.html (8,080 bytes)
6. RE: [FOT] alternators (score: 1): Author: Bill Babcock <BillB@bnj.com>; Date: Fri, 18 Aug 2006 23:25:17 -0700; If they were sine waves you'd be right (even given lots of alternator poles), but when you whack the top off a sine wave you get a kind of square wave that includes lots of frequencies. They'll radia; /html/fot/2006-08/msg00324.html (9,086 bytes)
7. RE: [FOT] alternators (score: 1): Author: Bill Babcock <BillB@bnj.com>; Date: Fri, 18 Aug 2006 23:29:01 -0700; Actually, you don't get nice sine waves--the regulator lops off the top of the sine waves which would otherwise rise to 40-100 volts in a lightly loaded circuit. Been out of town so I'm a little late; /html/fot/2006-08/msg00325.html (11,017 bytes)
8. RE: [FOT] alternators (score: 1): Author: Bill Babcock <BillB@bnj.com>; Date: Sat, 19 Aug 2006 08:22:06 -0700; I certainly could be wrong, it's a long time since I've physically looked at this, and then it was a motorcycle. Maybe we're talking about two different things here. I thought all the regulator did w; /html/fot/2006-08/msg00328.html (8,104 bytes)
9. Re: [FOT] alternators (score: 1): Author: "Tim Murphy" <timmurph@fastbytes.com>; Date: Sat, 19 Aug 2006 11:18:41 -0500; Yoy're right, of course, but the frequency of the rectified sine wave would still be well below the radio frequency range to cause interference. It/s interesting, John, that you've had a scope on the; /html/fot/2006-08/msg00329.html (10,314 bytes)

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