Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1977-12-14
1979-11-27
Miller, J. D.
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 26, 363 97, H02M 700
Patent
active
041763920
ABSTRACT:
An improved series inductor/parallel inverter power stage and power staging ethod for a transistor controlled DC-DC power converter in which the integrating capacitance is located in the output of the power stage transformer and the series inductor has a secondary winding connected across this capacitance for transferring stored energy from the inductor primary directly to the transformer output rather than through the transformer, and current flow through the transformer primary is controlled by two parallel, alternately conducting pulse-width-modulated transistors in a manner such that only a single transistor is located in the main current flow path at any given time. The improved power stage is characterized by reduced power dissipation and peak voltage stresses on the transistors, increased simplicity, and improved reliability.
A DC-DC power converter having at least two improved power stages of the invention arranged in parallel and adjusted for conduction of preset fractions of the total power in phased relation.
REFERENCES:
patent: 3559030 (1971-01-01), Bussard
patent: 3609507 (1971-09-01), Beck
patent: 3621365 (1971-11-01), Beck
patent: 3675037 (1972-07-01), Hamilton
patent: 3846691 (1974-11-01), Higgins
patent: 3870943 (1975-03-01), Weischedel et al.
patent: 4039925 (1977-08-01), Fletcher et al.
Biess John J.
Cronin Donald L.
Edelberg Nathan
Miller J. D.
Murray Jeremiah G.
Sachs Michael C.
The United States of America as represented by the Secretary of
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