Non-isolated AC power supply device and method for controlling the same
US6961250B2 · kind B2 · utility
2Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Dec 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/2176
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-isolated power supply device and a method for controlling the same, wherein only one DC voltage bus is adopted and the neutral lines of the input voltage and output voltage are directly connected together. During the periods that the voltage polarities of the input voltage and output voltage are not the same, the power supply device is operated in a flyback mode to avoid the generation of an abnormal current. Otherwise, during the periods that the voltage polarities of the input voltage and output voltage are the same, the power supply device is operated in a boost mode to derive a superior efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.