Motor vehicle electrical system providing multiple DC voltages

Details Motor vehicle electrical system providing multiple DC voltages Motor vehicle electrical system providing multiple DC voltages

1986-08-01

1987-08-04

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 84, 322 90, 363126, 320 48, H02P 926

Patent

active

046848185

ABSTRACT:
An electrical system for a motor vehicle includes a three-phase AC generator having wye-connected output windings and a three-phase full-wave rectifier. The neutral node of the wye-connected generator is grounded while the rectifier is ungrounded. As a result, three distinct DC voltages are produced: two three-phase half-wave rectified DC voltages of opposite polarity in respect to ground and a three-phase full-wave rectified voltage which is the sum of the other two DC voltages. One of the former lower-magnitude DC voltages may be employed to supply the usual low DC voltage loads of the vehicle while latter higher-magnitude DC voltage may be employed to energize a higher DC voltage load such as a window glass heater element.

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