Patent · US Active

Voltage regulator and method for providing an output voltage with reduced voltage ripple

US10459470B2 · kind B2 · utility

0Cited by

5References

26Claims

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
Alessandro Angeli · Munich, DE
Petrus Hendrikus Seesink · Ouddorp, NL

Key dates

Filing date	May 11, 2018
Grant date	Oct 29, 2019
Priority date	—
Expiry date	May 11, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG05F1/59
WIPO fieldControl
WIPO sectorInstruments

Abstract

A digital voltage regulator and a method to regulate an output voltage at an output node based on an input voltage is presented. The regulator has a driver stage with N driver slices, with N>1. Each of the N driver slices can be activated or deactivated individually. A driver slice comprises a current source to provide an output current component to the output node, if the driver slice is activated. Furthermore, the regulator has a control unit to activate a number n of the N driver slices, based on a deviation of a feedback voltage from a reference voltage, where the feedback voltage is dependent on the output voltage.

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