Electricity: single generator systems – Automatic control of generator or driving means – Voltage of generator or circuit supplied
Patent
1977-10-03
1980-04-08
Hickey, Robert J.
Electricity: single generator systems
Automatic control of generator or driving means
Voltage of generator or circuit supplied
322 29, 322 90, 320 64, H02J 716, H02P 930
Patent
active
041974921
ABSTRACT:
A first and a second full-wave rectifying network are respectively connected with both ends of generating coils of a generator for respectively generating alternating current thereat. A switching device has normally closed contacts for making voltage differences among the input terminals of the second full-wave rectifying network zero, whereby the coils act as a star-connected current generating winding so long as the contacts are held closed. The switching device also has an energizing coil for actuating the normally-closed contacts to open when the rotational speed of the generator exceeds a predetermined value. When the normally-closed contacts are opened, the coils no longer act as the star-connected winding but an independently generating winding, to thereby increase the output current from the generator even when the generator operates at a relatively high rotational speed.
A terminal circuit having a resistor and diodes connected with input terminals of the first full-wave rectifying network supplies base current for a switching transistor of a voltage regulator so that the voltage regulator establishes a separate field excitation at an earlier stage of the rotational speed of the generator.
REFERENCES:
patent: 3553563 (1971-01-01), Kawashima
patent: 3621360 (1971-11-01), Wiley et al.
patent: 3932765 (1976-01-01), Townsend
patent: 4024456 (1977-05-01), Sato et al.
patent: 4079306 (1978-03-01), Mori et al.
Mori Kazumasa
Sato Suguru
Hickey Robert J.
Nippondenso Co. Ltd.
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