Soft switching three-level inverter
US5684688A · kind A · utility
61Cited by
7References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 24, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Jun 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-level NPC inverter topology including two auxiliary resonant commutation circuits which are controlled to clamp the voltage across each main inverter switch to zero voltage prior to altering the state of the switch in order to achieve soft switching of all main inverter switches while reducing output voltage harmonics and gradients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.