Switching-type DC power source apparatus
US6011707A · kind A · utility
18Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a switching-type DC power source apparatus which uses a booster-chopper type active filter circuit as its rectifier circuit, even at zero-crossing timing of an AC voltage to be input in the rectifier circuit, a current supply source for making a current as if it is flowing is added to a current detection circuit for detecting the current flowing in the active filter circuit, thereby preventing a prickle-like input current including a number of harmonic components from flowing in the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.