Switching power-supply unit

Details Switching power-supply unit Switching power-supply unit

1998-05-27

1999-11-30

Nguyen, Matthew

Electric power conversion systems

Current conversion

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

H02M 3335

Patent

active

059953870

ABSTRACT:
In a switching power-supply unit in which a series circuit comprising a primary winding of a switching transformer and a switching device is provided across the terminals of an input power supply, a noise-eliminating bypass capacitor is connected across the ends of the series circuit. The bypass capacitor forms a short circuit path for high frequency noise having a frequency higher than the switching frequency of the switching device, thereby reducing high-frequency radiant noise.

REFERENCES:
patent: 5107411 (1992-04-01), Misdom
patent: 5608613 (1997-03-01), Jansen
patent: 5673184 (1997-09-01), Rilly et al.
patent: 5757628 (1998-05-01), Kamata

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