Split-boost converter having damped EMI isolation filter and met

Details Split-boost converter having damped EMI isolation filter and met Split-boost converter having damped EMI isolation filter and met

1997-08-05

1998-12-01

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

323222, 323225, 327551, 307 71, 307 91, H02M 112

Patent

active

058447903

ABSTRACT:
For use in a split-boost converter having a DC input, first and second outputs, a power train interposed between the DC input and the first and second outputs, a damped electromagnetic interference (EMI) filter circuit and method of reducing the EMI. In one embodiment, the EMI filter circuit includes (1) an EMI filter interposed between the power train and the second output, the EMI filter subject to oscillation from line disturbances arriving at the DC input and (2) a conductive path, coupling a rail of the second output to the DC input, that routes at least a portion of the line disturbances from the DC input directly to the second output to damp the oscillation of the EMI filter.

REFERENCES:
patent: 5530396 (1996-06-01), Vlatkovic et al.
patent: 5636112 (1997-06-01), Faulk
patent: 5668707 (1997-09-01), Barrett
patent: 5687070 (1997-11-01), Jacobs et al.
Document entitled "An Improved High-Efficiency Rectifier for Telecom Applications" by M.E. Jacobs.
R.W. Farrington, G.H. Fasullo, Y. Jiang, R.J. Murphy, V.J. Thottuvelil, K.J. Timm of Bell Laboratories, Lucent Technologies, Mesquite, Texas 75149; pp. 1-6.

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