Skip mode method and system for a current mode switching converter
US8941368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system to inhibit the switching of a current mode switching converter having high and low side switching elements coupled to an output inductor, the other end of which is coupled to an output node, and operated with respective modulated switching signals to regulate an output voltage Vout produced at the node. A current IC that varies with the difference between a reference voltage and a voltage proportional to Vout is compared with and a current IDETECTPEAK which varies with the current conducted by the high side switching element; the result of the comparison of IC and IDETECTPEAK is used to control the regulation of Vout during normal operation. Current IC is also compared with a current IDETECTVALLEY which varies with the current conducted by the low side switching element. When IDETECTVALLEY>IC, a ‘skip mode’ is triggered during which the switching signals are inhibited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.