Control circuit and method for a ripple regulator system
US8446135B2 · kind B2 · utility
50Cited by
12References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 24, 2012 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Feb 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit and method for a ripple regulator system generate a ripple signal in-phase and synchronous with an inductor current of the ripple regulator system, and extract a ripple information proportional to the amplitude of the ripple signal. The ripple signal is used for triggering control in PWM signal generation to make the ripple regulator system have small ripples and better loop stability simultaneously. The ripple information is used to improve the output offset of the ripple regulator system that is caused by the ripple signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.