The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2019
Filed:
Feb. 06, 2018
Stichting Imec Nederland, AE Eindhoven, NL;
Stefano Stanzione, Leuven, BE;
STICHTING IMEC NEDERLAND, Ae Eindhoven, NL;
Abstract
A voltage reference generator comprises a voltage reference, a variable gain amplifier connected to an output terminal of the voltage reference, a sampling capacitor connected to an output terminal of the voltage reference generator and to an output terminal of the variable gain amplifier via a sampling switch. The switch is adapted to close during a first portion of a switching period, and open during a second portion of the switching period. The voltage reference generator also comprises a ripple monitor adapted to estimate a magnitude of variation of an output voltage of the voltage reference generator resulting from charging and discharging of the sampling capacitor, and based on the estimate, perform one of control of the sampling switch to reduce a switching frequency of the sampling switch to increase a magnitude of the variation of the output voltage, and control of the sampling switch to increase the switching frequency.