Multiphase DCDC converter with asymmetric GM
US9837906B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2016 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Sep 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the disclosure is to provide a multiphase Buck, Boost, or other switching converter to give high efficiency over the full range of output currents, and to maximize the total output current the switching converter is able to supply, by fully utilizing every phase of the switching converter. Further, another object of this disclosure is to balance the asymmetric transconductance, such that the load share between phases is optimized for different load levels of coil value, coil type, pass-device scaling, and frequency. Still further, another object of this disclosure requires that each of the switching converter operates at a similar point of saturation current at each point along the output load range, and each phase provides a different percentage of the total output current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.