Converter with resonant circuit elements for determing load type
US6466456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Aug 15, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A converter includes circuit elements for chopping a DC voltage, in which switch-on phases of the circuit elements are alternating. A circuit assembly with resonant elements is used for processing the chopped DC voltage and for producing an output voltage. The voltage present at one of the circuit elements is compared with a threshold in a dead time phase before the circuit element is switched on. The comparison result is used to determine whether an inductive or capacitive converter load is present. Alternatively, a differential quotient of the voltage present at one of the circuit elements during the dead time phase is used to determine whether an inductive or capacitive converter load is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.