Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1994-12-07
1995-12-05
Nguyen, Matthew V.
Electric power conversion systems
Current conversion
Having plural converters for single conversion
345 8, H02M 700, G09G 302
Patent
active
054735270
ABSTRACT:
A power supply for providing, from a low voltage source, a high voltage supply for a display device comprises first and second physically separate modules and an electrical conductor therebetween. The first module is adapted to be connected to the low voltage source and contains circuitry operating at low voltage. The second module provides the high voltage supply and contains circuitry operating at high voltage. The electrical conductor between the two modules carries current only at low voltage. This arrangement permits safe disconnection of the power supply, for instance in emergency situations, by breaking the low voltage connection, rather than having to break a high voltage connection. A preferred use of the power supply is to provide a high voltage supply to a display device incorporated into a helmet.
REFERENCES:
patent: 3815354 (1974-06-01), Strocka et al.
patent: 4878046 (1989-11-01), Smith
patent: 5161241 (1992-11-01), Kanai
patent: 5259800 (1993-11-01), Fields
patent: 5272612 (1993-12-01), Harada et al.
patent: 5343313 (1994-08-01), Fergason
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