Inverter device including an auxiliary power supply with a smoothing capacitor
US5764496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1997 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Feb 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter device includes a rectifier for rectifying an AC voltage produced by an A.C. power source; an inverter circuit receiving a first DC output voltage and outputting a high frequency voltage for operating a load circuit; and auxiliary power supply means including a smoothing capacitor connected across the rectifier for smoothing current supplied to the load circuit, wherein the inverter circuit includes DC/DC converter receiving the first DC output voltage, for outputting a second DC output voltage less than a peak value of the first DC output voltage, and DC/AC converter receiving the second DC output voltage for outputting the high frequency voltage, the DC/DC converter and DC/AC converter sharing a common switching element, the DC/AC converter receiving a DC voltage less than the voltage produced by the A.C. power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.