Hybrid bidirectional DC to DC converter
US11539301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2020 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jul 29, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33573
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hybrid bidirectional DC to DC converter allows a direct boost ratio in the high voltage to low voltage direction, but not in the low to high direction. Switches are used to tie the commons of the transformers to ground and power rail to allow the formation of a full-bridge with remaining phases to alter the boost ratio so that transformers do not need to be connected in series in the high voltage to low voltage direction. The switches are on a connection shared by the transformers and are configured to allow a dynamic changeover of the secondary windings in a multi-phase delta-wye configuration from a series nature into a parallel nature such that a 2× boost of winding ratio is reduced to a 1× boost of winding ratio depending on whether the input voltage is above or below a threshold input voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.