High power-factor inverter device having reduced output ripple

Details High power-factor inverter device having reduced output ripple High power-factor inverter device having reduced output ripple

1993-08-26

1995-04-25

Pellinen, A. D.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 17, 363 40, 363 44, 363132, 363134, 315224, 315242, H02M 744

Patent

active

054104661

ABSTRACT:
An inverter device includes an input power-factor improving circuit which causes part of a high frequency output of an inverter circuit to feedback, through an impedance element forming at least part of two oscillatory systems, to a rectified output end of a rectifier, and a high-frequency current supply to the rectifier to be made substantially over entire range of an AC source voltage, and a control means operates the inverter circuit at a fixed frequency for attaining the two oscillatory systems in which the output supplied to a load is substantially equalized, whereby ripple component giving ill influence on the load can be remarkably reduced.

REFERENCES:
patent: 4511823 (1985-04-01), Eaton et al.
patent: 5063491 (1991-11-01), Maehara et al.
patent: 5134344 (1992-07-01), Vos et al.

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