Uninterruptable DC power supply providing seamless DC power to load
US9685821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an uninterruptible direct current (DC) power supply system, which includes a first connection unit electrically connected to a DC power conversion system which converts prevailing AC power into the DC power, a second connection unit which is electrically connected to the load and supplies the DC power to the load, an auxiliary power supply charged by the DC power, and an uninterruptible control unit which supplies the DC power supplied from the DC power conversion system normally connected to the first connection unit to the load through the second connection unit, charges the auxiliary power supply, and controls power to be continuously supplied to the load while perfectly cutting off electrical connection between the DC power conversion system and the auxiliary power supply when the DC power conversion system is disconnected from the first connection unit, is damaged, or short-circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.