Low noise controller for pulse width modulated converters

Details Low noise controller for pulse width modulated converters Low noise controller for pulse width modulated converters

1995-05-30

1997-11-11

Berhane, Adolf

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 21, 363 41, H02M 75395

Patent

active

056870671

ABSTRACT:
A controller for supplying a switching drive voltage signal to a semiconductor power switch includes a wave-shaper circuit that generates a piece wise linear (PWL) waveform that slows the rate of change of the drive voltage supplied to the control electrode of the semiconductor power switch. As a result, the radiated electromagnetic interference generated by the apparatus can be appreciably reduced.

REFERENCES:
patent: 3886433 (1975-05-01), Watanabe
patent: 4628428 (1986-12-01), Walker
patent: 4628429 (1986-12-01), Walker
patent: 4700285 (1987-10-01), Szepesi
patent: 4827391 (1989-05-01), Sills
patent: 4885674 (1989-12-01), Varga et al.

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