Power supply with near valley switching
US10256735B2 · kind B2 · utility
1Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched-mode power supply with near valley switching includes a quasi-resonant converter. The converter includes a switch element that is turned on not only at the valley, but also in a window range of ΔtNVW close to the valley, where the voltage across the switch element is at its minimum. This advantageously reduces switching loss and maintains a balance between efficiency and frequency variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.