Multi-resonant electronic power converter with a wide dynamic ra

Details Multi-resonant electronic power converter with a wide dynamic ra Multi-resonant electronic power converter with a wide dynamic ra

1993-09-24

1996-06-25

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

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

363 97, 363131, H02M 3335

Patent

active

055306381

ABSTRACT:
Methods and apparatus for variably converting a DC voltage to a different DC voltage level are effected by a multi-resonant electronic power converter with a wide output voltage dynamic range. The power conversion is accomplished by converting the DC voltage to an AC signal, adjusting or attenuating the AC signal to the desired amplitude, and then converting the AC signal back to a DC voltage. The output voltage may be adjusted by altering the frequency of the AC signal also known as the switching frequency. A wide dynamic range is achieved at a narrow switching frequency bandwidth by inserting either a fourth or higher order low pass filter or a notch filter at the output of the switching transistor. The high roll-off rate exhibited by either filter provides a relatively high dynamic range in a narrow frequency range.

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patent: 4486823 (1984-12-01), Palm
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patent: 5065301 (1991-11-01), Shioya et al.
patent: 5088016 (1992-02-01), Vinciarelli et al.
patent: 5159541 (1992-10-01), Jain
Steigerwald, "High Frequency Resonant Transistor DC-DC Converters" 31 IEEE Transactions on Industrial Electronics 181 (May 1984).
Puczko, "Wide Range Power Regulation Technique For HF-Resonant Converters", HFPC Proceedings 165-177 (May 1993).
Batarseh et al., "Resonant Converter Topologies with Three and Four Energy Storage Elements", HFPC Proceedings, 374-383 (May 1992).

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