Alternator regulation of unbalanced currents with temperature co

Details Alternator regulation of unbalanced currents with temperature co Alternator regulation of unbalanced currents with temperature co

1995-07-07

1997-09-30

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Thermal conditions

323266, H02P 930

Patent

active

056729553

ABSTRACT:
This invention relates to regulation techniques for alternators typically permanent alternators as might be used on recreational vehicle engines. The regulation techniques previously known under some conditions produce undesirable high direct current components or unbalanced currents in the alternator winding on the alternator. The invention reduces these unbalanced currents thus eliminating the unnecessary source of heating of components and the waste of power. Alternator regulators of the type commonly used on AC systems on snowmobiles typically have a negative temperature coefficient which produces excessive voltage at low temperatures which further adds to effectively increased voltage at the lamps caused by the reduction in wiring resistant at low temperature. The invention produces a selected positive temperature coefficient of a true RMS AC regulator and allows more accurate calibration of that regulator.

REFERENCES:
patent: 3450977 (1969-06-01), Krauss
patent: 3643153 (1972-02-01), Hanson et al.
patent: 3656050 (1972-04-01), Airey
patent: 3750006 (1973-07-01), Kuhn
patent: 3848177 (1974-11-01), Gynn
patent: 4791349 (1988-12-01), Minks
patent: 5018493 (1991-05-01), Minks
patent: 5266882 (1993-11-01), Morishita
patent: 5374886 (1994-12-01), Kohl et al.

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