Independent high-voltage power supply for an internal-combustion

Details Independent high-voltage power supply for an internal-combustion Independent high-voltage power supply for an internal-combustion

1996-02-20

1998-10-13

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Plural conditions

322 7, 322 28, H02P 900

Patent

active

058217371

ABSTRACT:
A power supply for delivering voltage for use in an internal-combustion engine includes an onboard d.c. power source; an alternator connected to the d.c. power source and having an output for supplying a normal, onboard-network voltage during engine run; a step-up transformer having a primary winding and a secondary winding; and an inverter having an input connected to the d.c. power source and an output. There is further provided a change-over switch that has a first input connected to the output of the alternator, a second input connected to the output of the inverter and an output connected to the primary winding of the transformer. The change-over switch has a first switching state connecting the output of the alternator with the primary winding and a second switching state connecting the inverter with the primary winding. An rpm-responsive arrangement sets the change-over switch into the second switching state from the first switching state when the engine-rpm falls below a predetermined magnitude.

REFERENCES:
patent: 4419618 (1983-12-01), Gretsch
patent: 4692684 (1987-09-01), Schaeffer
patent: 4884018 (1989-11-01), Meuret et al.
patent: 5057763 (1991-10-01), Torii et al.
patent: 5066866 (1991-11-01), Hallidy
patent: 5072098 (1991-12-01), Matthews et al.
patent: 5606244 (1997-02-01), Migdal
patent: 5686818 (1997-11-01), Scaduto

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