DC voltage converter with several isolated regulated outputs

Details DC voltage converter with several isolated regulated outputs DC voltage converter with several isolated regulated outputs

2007-10-09

2007-10-09

Riley, Shawn (Department: 2838)

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

Reexamination Certificate

active

11393476

ABSTRACT:
The present invention relates to a DC voltage converter with soft switching of the type with half-bridge arrangement at the primary side and of quasi-resonant half-wave type at the secondary side. This converter comprises a single transformer and can generate a plurality of regulated voltages at output. It furthermore comprises a resonant circuit for creating a half-wave resonant current in the secondary winding and charging a first load capacitor so as to produce a first DC voltage. It furthermore comprises an inductive circuit connected between said secondary winding and a second load capacitor able to generate a current so as to charge the second load capacitor during a part of the half-wave of the resonant current flowing in the secondary winding and thus produce a second DC voltage.

REFERENCES:
patent: 5777859 (1998-07-01), Raets
patent: 5925278 (1999-07-01), Hirst
patent: 5991168 (1999-11-01), Farrington et al.
patent: 2001/0036087 (2001-11-01), Raets et al.
Search Report Dated Jan. 2, 2006.

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