Low noise voltage regulator
US8797772B2 · kind B2 · utility
1Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Apr 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low noise voltage regulator generally includes an output switching stage and an amplifier, both of which contribute current to produce an output voltage at a substantially constant level. The amplifier produces a current that is based on a difference between a reference voltage and a feedback of the output voltage. The current from the amplifier (and optionally also from a current ramp generator) counterbalances the current from the output switching stage to maintain the output voltage at the substantially constant level. The output switching stage is controlled in response to a level of the counterbalancing current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.