Power conversion device
US10673354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2017 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | May 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33584
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion device includes: a first smoothing circuit connected to a first electric device; a second smoothing circuit connected to a second electric device; a first bridge circuit connected to the first smoothing circuit; a transformer having a primary side connected to a third electric device and a secondary side connected to the first bridge circuit and the second smoothing circuit; and a controller, wherein the controller varies a duty ratio of the first bridge circuit at a frequency higher than cutoff frequencies of the first and second smoothing circuits, controls a constant component of the duty ratio to control power exchange between the first and second electric devices, and controls a phase of a varying component of the duty ratio to control power exchange to and from the third electric device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.