Converter protection circuit operative to limit and counteract transformer saturation
US4127894A · kind A · utility
18Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Nov 14, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/3378
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Primary and secondary currents of a converter transformer in a double-ended converter are continuously monitored to detect the onset of saturation in the magnetic core of the transformer. When the onset condition is detected, the conductive roles of the oppositely phased switching transistors in the converter are reversed to limit and counteract the onset of saturation in the magnetic core of the transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.