Circuits and methods for controlling power converters including transformers
US8379413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Aug 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter includes a transformer operated in multiple switching cycles. At least one switching cycle includes a charging period, a discharging period, and an adjusting period. The transformer has a primary winding coupled to a power source and a secondary winding coupled to a load. During the charging period the transformer is powered by the power source and a current flowing through the primary winding increases. During the discharging period the transformer discharges to power the load and a current flowing through the secondary winding decreases. A ratio of a duration of the discharging period to a total duration of the charging period, the discharging period and the adjusting period is constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.