Electrical device with a constant voltage converter

Details Electrical device with a constant voltage converter Electrical device with a constant voltage converter

1997-08-19

1999-10-12

Wong, Peter S.

Electric power conversion systems

Current conversion

With voltage multiplication means

363 62, H02M 318, H02M 306

Patent

active

059662980

ABSTRACT:
Electrical device, in particular a radio device, with an energy storage device. The invention relates to an electrical device, in particular a radio device, with an energy storage device (6) which serves as a current supply. To ensure a high flexibitility in view of the possible use of different energy storage devices with different discharging behaviors, a circuit arrangement (14) is provided for converting a voltage (U.sub.E) supplied by the energy storage device into at least one supply voltage (U.sub.out) which serves for supplying circuits of the electrical device, which is substantially constant, and which is preprogrammable. The circuit arrangement (14) in a first switching state reduces a voltage (U.sub.E) supplied by the energy storage device (6) to the supply voltage (U.sub.out), acting as a downconverter, and in a second switching state steps up a voltage (U.sub.E) supplied by the energy storage device (6) to the supply voltage (U.sub.out), acting as an upconverter. The circuit arrangement (14) comprises components (L, R, S, D, C.sub.1) which are used both in the downconverter and in the upconverter.

REFERENCES:
patent: 4654769 (1987-03-01), Middlebrook
patent: 5132895 (1992-07-01), Kase
patent: 5345376 (1994-09-01), Nourbakhsh
patent: 5414614 (1995-05-01), Fette et al.
patent: 5581454 (1996-12-01), Collins
patent: 5596489 (1997-01-01), Bazes
Funkschau Feb. 1995, p. 52.

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