Method and apparatus for modulating inverter pulse width
US4692854A · kind A · utility
20Cited by
2References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 4, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Mar 4, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/122
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are disclosed for use with a battery powered inverter for powering a load through a ferroresonant transformer. The current flow through the inverter-ferroresorant transformer is sensed and is utilized to modulate the inverter's pulse width at a point, after a peak voltage but before saturation begins, when the slope of the inverter-ferroresonant transformer current with respect to time is at or near zero. A maximum current limiting feature can be provided in the method and apparatus of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.