Re: Question for Bob M.

Posted by Bob M on March 31, 2002 at 20:23:10 from (66.66.72.246):

In Reply to: Question for Bob M. posted by Andrew on March 31, 2002 at 19:30:15:

Andrew - The 1-wire alternator uses a different regulator from the standard 3-wire unit. I don't know all the internal details, but works by maintaining a very small, but constant current drain thru the BAT terminal.

The 1-wire units are simple to wire up but have a couple of inherent disadvantages: 1 - The constant current drain will pull the battery down if left connected and the engine is not started for an extended period (generally a few weeks). 2 - The 1-wire unit must be spun up to a higher RPM than a 3-wire to "turn on" the regulator and commence charging at startup. (Once it begins charging it will continue to charge when idled down, same as for a 3-wire.)

Hope this helps...

Follow Ups:

• Re: Re: Question for Bob M. James (MO) 12:25:08 04/01/02 (0)
• Re: Re: Question for Bob M. Andrew 05:13:39 04/01/02 (0)

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