Electricity: single generator systems – With signals – indicators – recorders – testing – etc.
Patent
1991-06-04
1993-02-02
Stephan, Steven L.
Electricity: single generator systems
With signals, indicators, recorders, testing, etc.
322 28, H02K 1100, H02H 706
Patent
active
051840600
ABSTRACT:
A control apparatus for an AC generator in which a storage battery 4 is connected to the field coil 102 of the generator, and through a rectifier 2 to the armature coil 101 of the generator to be charged thereby. A voltage regulator 3 is connected between the generator and the battery for controlling the current supply to the field coil, and includes a switch 306 connected in series with the field coil for turning the current supply on and off to control the output voltage of the generator. A detector 6A or 6B is connected between the armature coil and the battery and between the rectifier and the battery for detecting the operating state of the generator and attendantly operating an indicator 7. The detector includes a switch 605, 607 for turning the indicator on and off, an emitter follower transistor 610 connected through the rectifier to the armature coil for controlling the switch based on the generation signal, and a relatively small capacitor 603 connected to the transistor for smoothing the generation signal. An adjuster 310, 311 may be connected between the voltage regulator and the detector for detecting the output voltage of the transistor and reducing the generation signal to a value lower than that to which it is normally controlled by the voltage regulator.
REFERENCES:
patent: 3376497 (1968-04-01), Lund
patent: 4349854 (1982-09-01), Mori et al.
patent: 4471288 (1984-09-01), Morishita et al.
patent: 4755737 (1988-07-01), Komurasaki et al.
patent: 4812732 (1989-03-01), Iwatani
Mitsubishi Denki & Kabushiki Kaisha
Stephan Steven L.
To E.
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