Methods and apparatus for adaptive timing for zero voltage transition power converters
US10177658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Nov 14, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described examples include a method of controlling a power converter including executing a plurality of cycles. Each cycle includes turning on a first switch during a first period, the first switch coupled between a power supply and an output inductance; turning on a second switch during a second period, the second switch coupled between an output inductance and ground; turning on a third switch at a first time during the second period, the third switch coupled between the power supply and an auxiliary inductance; and turning on a fourth switch on at a third time after the second time, the fourth switch coupled the auxiliary inductance and ground. The second period ends at a third time period after the first time based on a later of an overlap time and a current through a switch connected to the second switch current handling terminal exceeding a threshold current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.