Blocking time maintenance circuit for ZVS converters

Details Blocking time maintenance circuit for ZVS converters Blocking time maintenance circuit for ZVS converters

1998-06-24

1999-09-21

Berhane, Adolf Deneke

Electric power conversion systems

Current conversion

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

363 75, 363 82, 363 91, 363132, H02M 3335

Patent

active

059562382

ABSTRACT:
The blocking time maintenance circuit is applied to a resonant-transition ZVS power converter having saturable core reactors to induce a current in the primary of the transformer which enables ZVS. The circuit includes a peak detector for producing a signal having a magnitude proportional to an input voltage. A biasing mechanism, comprising a current source, is provided in order reset the saturable core reactors in a controlled manner. A control mechanism is connected to the peak detector and the current source in order to generate a reset current, the magnitude of which is correlated to the input voltage. In this manner, the volt-time product of the saturable reactors is varied, thereby maintaining the blocking time relatively constant over a wide range of input voltages and ensuring that the output voltage does not fall out of regulation.

REFERENCES:
patent: 4419723 (1983-12-01), Wilson, Jr.
patent: 4517633 (1985-05-01), Melcher
patent: 4591966 (1986-05-01), Smith
patent: 4623834 (1986-11-01), Klingbiel et al.
patent: 4811187 (1989-03-01), Nakajima et al.
patent: 4860145 (1989-08-01), Klingbiel
patent: 4860189 (1989-08-01), Hitchcock et al.
patent: 4931918 (1990-06-01), Inou et al.
patent: 5132889 (1992-07-01), Hitchcock et al.
patent: 5157592 (1992-10-01), Walters
patent: 5418703 (1995-05-01), Hitchcock et al.
patent: 5442540 (1995-08-01), Hua et al.
patent: 5521808 (1996-05-01), Marusik et al.
patent: 5539630 (1996-07-01), Pietkiewicz et al.
patent: 5563775 (1996-10-01), Kammiller
patent: 5654880 (1997-08-01), Brkovic et al.

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