High power-factor inverter device having reduced output ripple
US5410466A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Aug 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.