Switching regulator and control circuit and control method therefor
US9529373B2 · kind B2 · utility
7Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Mar 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a switching regulator and a control circuit and a control method therefor. In one embodiment, by means of controlling a rectifying switch in a power stage with a second control signal which has a predetermined frequency and varies in accordance with the difference between a feedback voltage and a reference voltage, more energy may be shunted when a switching regulator operates in a light loaded or unloaded condition, so that audio noise is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.