Converter with a high power factor using a DC center point voltage
US6137700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1999 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Apr 12, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Switching control is remarkably simplified and a DC voltage is boosted, and then, an input power factor is sufficiently improved and harmonics are reduced by connecting a full-wave rectifier circuit to an AC power source through a reactor, and connecting a smoothing capacitor and boosting capacitors, which are connected in series with each other, in parallel between the output terminals of the circuit. In addition, a switching device is connected between the input terminal of the circuit and the connecting point between the boosting capacitors, and a control device is provided to control the switching device so that the switching device can be switched at every half cycle of the power source voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.