Control circuit and method for a soft-start scheme of a switch mode power supply for a power amplifier
US8350541B2 · kind B2 · utility
1Cited by
11References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2008 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a control circuit including a sampling controller configured to sample an output voltage of a power converter at an appropriate time slot by opening a control loop. A soft-start circuit configured to enable soft-starting of an internal soft-start reference voltage to start from the sampled output voltage and to control the internal soft-start reference voltage to a predetermined target value in order to pre-charge the output voltage close to an input voltage level, or to continue charging the output voltage to a predetermined output voltage value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.