Patent · US Active

Quiescent current control in voltage regulators

US10331152B2 · kind B2 · utility

2Cited by

2References

8Claims

0Family size

Assignee

Dialog Semiconductor (UK) Limited · GB

Inventors

Mihail Jefremow · Augsburg, DE
Dan Ciomaga · Ingolstadt, DE
Gennadii Tatarchenkov · Germering, DE
Stephan Drebinger · Munich, DE
Fabio Rigoni · Karlsfeld, DE

Key dates

Filing date	Apr 6, 2018
Grant date	Jun 25, 2019
Priority date	—
Expiry date	Apr 6, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG05F1/10
WIPO fieldControl
WIPO sectorInstruments

Abstract

A circuit for generating an output voltage, and regulating the output voltage to a target voltage, is described. The circuit comprises a pass device coupled between an input voltage level and an output voltage level, an error amplifier stage configured to generate a first control voltage on the basis of a reference voltage and the output voltage, a buffer stage configured to generate a drive signal for the pass device on the basis of the first control voltage, and a tracking circuit configured to track a voltage across the pass device and to generate a second control voltage on the basis of the voltage across the pass device. The buffer stage comprises a variable resistance element, for limiting a current flowing through the buffer stage on the basis of the second control voltage.

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