Arrangement for testing a power output stage
US7417394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Jul 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/0822
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a device for controlling a final power-output stage, the latter comprising three half-bridges consisting respectively of a series circuit including an upper semiconductor switch and a lower semiconductor switch and subjected to a service voltage, the connection points of the semiconductor switches of the half-bridges forming outputs which are connected to the windings of a motor having at least three phases. The invention is characterized in that there is provided a control device for shifting on-state respectively one semiconductor switch or simultaneously several semiconductor switches according to a predetermined programme and for determining whether the respective voltages at the outputs are respectively within a predetermined tolerance range for the corresponding switching state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.