Modulation of a feedback signal used in a digital control of a switching regulator
US7755917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | May 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Digital control of a switching regulator in one aspect includes a compare circuit to be coupled to receive a feedback signal representative of an output level of a power supply. A feedback state signal is generated having a first feedback state and a second feedback state. An adjustment circuit is coupled to the compare circuit to adjust the feedback state signal in response to at least one of adjusting the threshold level or adjusting the feedback signal. The adjusted feedback state signal causes the feedback state signal to revert from a state at the time of adjustment to a state immediately preceding the adjustment. A control circuit is to be coupled to a power switch and is to be coupled to receive an oscillating signal and the feedback state signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.