Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1996-02-01
1998-01-13
Wong, Peter S.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
333222, 333 32, H02M 322, G05F 146
Patent
active
057085730
ABSTRACT:
A DC to DC converter including a resonant switching circuit (13, 51 , 115, 151, 125, 153); an impedance matching circuit (53) responsive to the resonant switching circuit; a rectifier circuit (55) responsive to the impedance matching circuit; an output filter circuit (57) responsive to rectifier circuit for providing a filtered DC to DC converter voltage output; and a varactor diode circuit (27, 29, 31, 61) responsive to the filtered DC to DC converter voltage output for controlling the impedance matching circuit such that the filtered DC to DC converter output voltage is substantially constant.
REFERENCES:
patent: 3571697 (1971-03-01), Phillips
patent: 4048598 (1977-09-01), Knight
patent: 4459537 (1984-07-01), McWhorter
patent: 5097196 (1992-03-01), Schoneman
patent: 5107233 (1992-04-01), Stoft
patent: 5343172 (1994-08-01), Utsu et al.
patent: 5392011 (1995-02-01), Li
patent: 5432431 (1995-07-01), Vinciarelli et al.
patent: 5574413 (1996-11-01), Ruelke
Hong Wilbur E.
Hwang William B.
Lusher David M.
Alkov Leonard A.
Denson-Low Wanda K.
Hughes Electronics
Jardieu Derek J.
Wong Peter S.
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