Inverter with shared chopper function for high input power factor with restrained higher harmonics
US5251119A · kind A · utility
16Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter device achieving a high input power-factor while restraining higher harmonics to be low is provided by a simple circuit structure, in which a pulsating DC voltage supplied through a rectifier is provided through an inductor to a smoothing condenser and to an inverter circuit section connected to output ends of the rectifier to be in parallel therewith, a smoothed DC voltage from the smoothing condenser is supplied through the inductor to the inverter circuit section, and a high frequency voltage is provided out of the device in response to ON and OFF operation of a switching means in the inverter circuit section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.