Electric power conversion system
US9209701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33584
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power conversion system includes: a primary electric power conversion circuit including primary right and left arms; a secondary electric power conversion circuit including secondary right and left arms; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits by magnetically coupling a primary coil to a secondary coil. The control circuit sets an interphase difference in switching between right and left arm lower transistors in the primary electric power conversion circuit and an interphase difference in switching between right and left arm lower transistors in the secondary electric power conversion circuit on the basis of off times of the primary and secondary electric power conversion circuits such that a phase difference between terminal voltage waveforms of the primary and secondary coils is 0 and duty ratios of the terminal voltage waveforms are equal to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.