Patent · US Active

Linear regulator with improved stability

US10001795B2 · kind B2 · utility

4Cited by

2References

20Claims

0Family size

Assignee

Dialog Semiconductor (UK) Limited · GB

Inventors

Mihail Jefremow · Augsburg, DE
Dan Ciomaga · Ingolstadt, DE
Qiao Yang · Fürth, DE
Stephan Drebinger · Munich, DE
Fabio Rigoni · Karlsfeld, DE

Key dates

Filing date	Aug 26, 2016
Grant date	Jun 19, 2018
Priority date	—
Expiry date	Aug 28, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02M3/155
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A linear regulator is presented. It comprises a first amplifier stage, one of the inputs being coupled with the output of the linear regulator. It has an intermediate amplifier stage. The input of the intermediate amplifier stage is coupled to the output of the first amplifier stage. It has a driver stage having a pass device driven by the output of the driver stage. The output of the pass device provides the output of the linear regulator. The regulator has a voltage-to-current feedback circuit coupled with the driver stage and the output of the first amplifier stage for regulating the output resistance of the first amplifier stage depending on load conditions of the linear regulator. The voltage-to-current feedback circuit has a transistor and a current limitation circuit to limit the regulation of the output resistance of the first amplifier stage to low load conditions of the linear regulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.