High-power, high-frequency inverter system with combined digital and analog control
US4488214A · kind A · utility
12Cited by
1References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Nov 15, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter system having a plurality of resonating current supplying stages connected in parallel, all resonant at the same frequency. The rate at which the stages operate is controlled by a feedback circuit responsive to the load output. The rate is maintained above the audible range for all but small total current values. Should the rate tend to vary outside a predetermined range, a different combination of stages is switched in. The stages supply currents which are binary weighted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.