D.C. to D.C. Converter utilizing resonant inductor to neutralize

Details D.C. to D.C. Converter utilizing resonant inductor to neutralize D.C. to D.C. Converter utilizing resonant inductor to neutralize

1978-07-31

1980-07-08

Miller, J. D.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 16, 363 75, H02M 114

Patent

active

042120535

ABSTRACT:
A d-c to d-c converter utilizing a resonant inductor to neutralize capacitive losses is disclosed. In most high voltage d-c power supplies, a step-up transformer is employed as the conversion element from the low voltage source to the high voltage output. Such transformers exhibit capacitive losses resulting from intra-and inter-winding capacitances. When utilizing a large step-up transformer wherein the turns ratio n=N.sub.p /N.sub.s is much less than 1, the capacitive losses result in a sharp decrease in the load to source voltage ratio thereby reducing the power available to the load. The present invention compensates for these losses by providing a resonant inductor which forms, at the operating frequency of the transformer, a resonant circuit with the equivalent Thevenin capacitive reactance as viewed from the primary side of the transformer resulting from these losses.

REFERENCES:
patent: 3026486 (1962-03-01), Pintell
patent: 3209240 (1965-09-01), Book
patent: 3239750 (1966-03-01), Weber
patent: 3602839 (1971-08-01), Williams
patent: 3612909 (1971-10-01), Imabayashi
patent: 3654537 (1972-04-01), Coffey
patent: 3739255 (1973-06-01), Leppert
"Transistor Circuit Analysis" by Alfred D. Grommer, 1970, pp. 138-140.

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