Voltage regulator with enhanced stability
US6946821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Dec 28, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/262
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator having an output terminal adapted to being connected to a load, including an operational amplifier having its non-inverting input connected to a reference voltage, and its inverting input connected to the output terminal, an inverting amplifier having its input connected to the output of the operational amplifier, a capacitive impedance connected between the input and the output of the inverting amplifier, a power switch controlled by the output of the inverter amplifier, arranged to connect the output terminal to a first supply voltage, said capacitive impedance including a short-circuitable portion associated with active short-circuit means when the current flowing through the load is greater than a predetermined current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.