Power supply method of a line interactive UPS and the line interactive UPS
US7141892B2 · kind B2 · utility
10Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2002 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Feb 2, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0093
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply method and apparatus of a line interactive UPS utilizes a bi-directional AC/AC power converter in association with the AC delta control concept. When the line voltage coupled to the AC/AC power convert exceeds high/low statuses, the UPS is operated in a line voltage conversion mode, wherein the AC/AC power converter supplies a voltage to compensated the line voltage based on the stability of the line voltage, and then the compensated stable voltage is further provided to the load so as to perform the voltage boost (step-up) and/or voltage buck (step-down).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.