Multifunction regulator synchronized to an alternator

Details Multifunction regulator synchronized to an alternator Multifunction regulator synchronized to an alternator

1989-02-22

1992-01-07

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Voltage of generator or circuit supplied

322 99, H02P 930

Patent

active

050794965

ABSTRACT:
A plurifunction device for regulating the excitation voltage of an alternator for charging the battery of an automobile vehicle, comprising battery and alternator phase voltage inputs, an excitation regulation output and a terminal connected to an indicator lamp. It also includes field coil power excitation control circuit, a battery voltage sensing circuit connected to the battery voltage input to supply a signal indicating that an alternator-battery connection is broken and an excitation regulation signal related to the peak and average values of the battery voltage. An alternator phase voltage amplitude sensing circuit supplies a first sensing signal related to a first threshold value authorizing the establishing of an excitation current with a frequency and cyclic ratio imposed by an alternator phase voltage signal applied to the alternator phase voltage input to initiate cutting in of the alternator. A second sensing signal related to an intermediate second threshold value authorizes application of a full-field condition to the alternator during cutting in initiated by the first sensing signal. A third sensing signal related to a third threshold value near a battery charge regulation voltage indicates the alternator phase voltage amplitude for sensing faults relating to this amplitude. An alternator field coil excitation control and memory supply a signal authorizing the full-field condition during cutting in of the alternator. A timer for the field coil excitation control and memory is synchronized to the alternator rotation speed. The field coil excitation voltage is controlled by conditional control logic.

REFERENCES:
patent: 4019120 (1977-04-01), Fattic
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patent: 4275344 (1981-06-01), Mori et al.
patent: 4379990 (1983-04-01), Sievers et al.
patent: 4409539 (1983-10-01), Nordbrock et al.
patent: 4471287 (1984-09-01), Morishita et al.
patent: 4560916 (1985-12-01), Yoshiyuki et al.
patent: 4584515 (1986-04-01), Edwards

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