Protective circuit with feedback capability for two-point and three-point inverters, and method of feeding back the protective-circuit energy
US5341283A · kind A · utility
5Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Jul 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a two-point or three-point inverter, a feedback circuitry is provided, which is disposed in parallel with a feedback capacitor (CR), and essentially include a semiconductor valve (SR) and a transformer (TR). As a result of switching the semiconductor valve (SR) once, the energy of the protective-circuit reactances, which have been stored in the feedback capacitor, is fed back into the link-circuit voltage source by the transformer. The arrangement according to the invention is distinguished by a high efficiency, accompanied at the same time by high turn-on/turn-off frequency of the semiconductor switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.