Uninterruptible power supply system
US9300220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Oct 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An uninterruptible power supply system including a rectification circuit, a power calibrating conversion circuit, an inverting conversion circuit, an LC circuit, a first output switch, a second output switch and a relay switch is disclosed. The rectification circuit couples to the main electricity. The power calibrating conversion circuit couples to the rectification circuit, and includes an independent drive unit and a switch unit. The inverting conversion circuit couples to the power calibrating conversion circuit. The LC circuit couples between output neutral terminal and output ground terminal. The first output switch couples between the LC circuit and the inverting conversion circuit. The second output switch couples between the inverting conversion circuit and output live terminal. The relay switch couples between the input neutral terminal and the LC circuit. When the relay switch turns on, the input neutral terminal connects with the output neutral terminal through the LC circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.