Excitation system for a self-excited alternator

Details Excitation system for a self-excited alternator Excitation system for a self-excited alternator

1975-08-25

1976-09-21

Miller, J

Electricity: single generator systems

Automatic control of generator or driving means

Voltage of generator or circuit supplied

322 60, 322 73, H02P 908

Patent

active

039821692

ABSTRACT:
A capacitor is connected in circuit with the output windings of an alternator in such a manner that it is charged in a first direction during selected half cycles and in a second direction during the other half cycles of the alternator alternating current output potential. During the selected half cycles, the alternator output potential and the charge upon the capacitor acting in series aiding relationship provides base drive current for a driver transistor to trigger this device conductive through the current carrying electrodes. Upon the conduction of this transistor, base drive current is supplied therethrough to another transistor included in an associated voltage regulator circuit to trigger this device conductive through the current carrying electrodes thereof which completes an energizing circuit for the alternator field winding.

REFERENCES:
patent: 3470456 (1969-09-01), Reinert
patent: 3548288 (1970-12-01), Wyles
patent: 3611112 (1971-10-01), Lehinoff

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