Re: How do I increase voltage for 8V batt on by B?

Posted by Bob M on June 08, 2007 at 11:55:29 from (151.190.254.108):

In Reply to: Re: How do I increase voltage for 8V batt on by B? posted by John T on June 08, 2007 at 08:36:32:

John T - Recall your EE 101 circuit theory and the concept of an "ideal current source"?

Within limits, a 6 volt 3 brush generator + cutout setup might almost be considered an ideal current source. Ie. it will deliver approximately the same output current whether the load is at a nominal 6 volts or 8 volts (or 12 volts for that matter...)

However from a practical standpoint, the higher the voltage the greater the RPM required before the generator will begin to charge. Also higher voltages cause faster internal heating of the generator.

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Also.....same as you am I am not a fan of 8 volt batteries! I regard it as a "band aid" solution to an electrical deficiency elsewhere on the tractor. Better to spend $$ to find/fix the underlying problem than toss in an 8 volt battery.

Replies:

• Re: How do I increase voltage for 8V batt on by B? John T 12:55:51 06/08/07 (1)
  • Re: How do I increase voltage for 8V batt on by B? Bob M 13:12:20 06/08/07 (0)

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