Resonant power converter
US6091615A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Nov 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A resonant power converter includes a positive bus line (1A) and a negative bus line (1B). A power converting portion (2) connected between a DC power source (1) and a load (5) operates for implementing power conversion. The power converting portion includes a plurality of main switching devices (3a-3f) connected in series and provided between the positive bus line and the negative bus line, and a plurality of flywheel diodes (4a-4f) connected in antiparallel with the main switching devices respectively for each phase. A resonant circuit (8) connected between the positive bus line and the negative bus line includes a resonant capacitor (6) and a resonant reactor (7) connected in series with the resonant capacitor. A control device (13) operates for switching the main switching devices in accordance with a predetermined pattern to enable the power converting portion to implement power conversion. The control device turns on a first switching device among the main switching devices to start resonance to be implemented by the resonant capacitor and the resonant reactor. The control means turns off a second switching device among the main switching devices when a resonant current cause…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.