Digital control method for improving heavy-to-light (step down) load transient response of switch mode power supplies
US8274264B2 · kind B2 · utility
2Cited by
2References
14Claims
0Family size
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Key dates
| Filing date | Feb 19, 2010 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Oct 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/158
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for improving heavy-to-light load transient response in low-power switch-mode power supplies is described. It uses a negative voltage input power rail and a digital controller with an extended duty ratio control value to provide faster discharging current slew rate in the switched mode power supplies (SMPS) inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.