Transistorized rectifier for a multiple output converter

Details Transistorized rectifier for a multiple output converter Transistorized rectifier for a multiple output converter

1998-03-13

2000-03-14

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363127, H02M 7217

Patent

active

060381507

ABSTRACT:
A secondary subcircuit of a converter circuit is disclosed where a method and circuit for operating a transistor to prevent reverse conduction of the current in the secondary subcircuit is disclosed. The diode in the secondary subcircuits of the prior art is replaced by a transistor and the circuitry for controlling the transistor is made part of the control circuit (ASIC). The secondary converter subcircuit includes a secondary coil for generating a voltage that passes through a first transistor M1, a capacitor, and a second transistor M2, where the output terminal of the subcircuit is across said capacitor. A presently preferred embodiment of a control circuit detects the voltage level at a sync node and the output voltage level at the output terminal and controls transistors M1 and M2 accordingly in generating the desired voltage level at the output terminal.

REFERENCES:
patent: 3582758 (1971-06-01), Gunn
patent: 4870555 (1989-09-01), White
patent: 4922404 (1990-05-01), Ludwig et al.
patent: 5144547 (1992-09-01), Masamoto
patent: 5528480 (1996-06-01), Kikinis et al.
patent: 5734563 (1998-03-01), Shinada
patent: 5742491 (1998-04-01), Bowman et al.
patent: 5774350 (1998-06-01), Notaro et al.

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