Power supply unit and method for controlling a power supply unit
US8692480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | May 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply unit is provided which comprises an AC/DC conversion unit with an input to which an input voltage is coupled and an output to which a DC bus voltage is coupled. The power supply unit furthermore comprises a DC bus capacitor which is coupled to the output of the AC/DC conversion unit. The power supply unit furthermore comprises at least one sub-power supply unit receiving the DC bus voltage as input for providing at least one power supply. The power supply of the at least one sub-power supply unit or part of the load is at least reduced or switched off if the input voltage falls below a predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.