Converter with DC voltage intermediate circuit and method for operating such a converter
US6040988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1998 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Aug 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/45
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A converter with a DC voltage intermediate circuit and including a rectifier circuit having an AC voltage input and a DC voltage output, which rectifier circuit can be connected to a power supply system, an invertor circuit having a DC voltage input and an AC voltage output, and a DC voltage intermediate circuit, which is arranged between the DC voltage output of the rectifier circuit and the DC voltage input of the invertor circuit. Also included is two connecting lines, leading from the DC voltage output of the rectifier circuit to the DC voltage input of the invertor circuit, and at least one intermediate circuit capacitor arranged between the connecting lines. A simplified structure is achieved by virtue of the fact that in order to protect the converter in the event of a short circuit, a first controllable semiconductor switch is arranged in at least one of the connecting lines between the DC voltage output of the rectifier circuit and the at least one intermediate circuit capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.