Low-voltage DC power supply

Details Low-voltage DC power supply Low-voltage DC power supply

1992-02-28

1994-10-11

Stephan, Steven L.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 98, 363132, 307 83, H02M 3335

Patent

active

053552938

ABSTRACT:
A low-voltage DC power supply, e.g. 5 V output, is fed from a higher-voltage input DC source, e.g. 300 V. A plurality of switched transformers each comprise a primary winding (L1) for switchably connecting to the input, a secondary winding (L2) for switchably connecting to the output, electronic switches (M1-M8) for alternatingly switching the windings (L1, L2) in opposite polarities, and common control means (10) for performing the switching such that in the plurality of transformers, no two thereof are simultaneously switching. For removing the influence of rapid output current surges, a filter (L9, L10, C10-C12) is arranged on the input side.

REFERENCES:
patent: 4338658 (1982-07-01), Toy
patent: 4399499 (1983-08-01), Butcher et al.
patent: 4547961 (1985-10-01), Bokil et al.
patent: 4953068 (1990-08-01), Henze

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