Built-in input filter forward converter

Details Built-in input filter forward converter Built-in input filter forward converter

1994-07-25

1996-06-04

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

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

323282, H02M 3335, G05F 140

Patent

active

055239366

ABSTRACT:
A built-in input filter forward converter performs to shape an input current to a non-pulsating fashion. Shaping action is obtained by placing two cross-coupled capacitors to a plurality of splitting windings of a power transformer such that the input current will not be interrupted. The cross-coupled capacitors also operate as a lossless snubber by allowing the leakage inductance energy to be stored and recovered during normal operation. Thus significant improvements of reducing harmonic of the input current, input current ripple, and increasing the converter's efficiency are achieved.

REFERENCES:
patent: 4635176 (1987-01-01), Hishiki et al.
patent: 4670667 (1987-06-01), Petit
patent: 5301095 (1994-04-01), Teramoto et al.
patent: 5313381 (1994-05-01), Balakrishnan
patent: 5349514 (1994-09-01), Ushiki et al.
A Novel Forward Configuration for DC-DC Application: Built-in Input Filter Forward Converter (BIFFC), Leu et al., IEEE Dalas, Texas, Mar. 1995.

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