Low noise voltage regulator
US7973518B2 · kind B2 · utility
10Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Oct 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/563
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In general, in one aspect, the disclosure describes a voltage regulator (VR) that includes a first amplifier receiving a first reference voltage and a feedback voltage as inputs. A second amplifier receiving a second reference voltage and an output of the first amplifier as inputs. A drive component (e.g., transistor(s)) coupled to the second amplifier to drive current to an output based on an output of the second amplifier. A shunt component (e.g., transistor(s)) coupled to the first amplifier to shunt current from the output based on the output of the first amplifier. Current variations in the shunt component are controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.