Global Patent Index - EP 2557472 A1

EP 2557472 A1 20130213 - Signal generator and method for signal generation

Title (en)

Signal generator and method for signal generation

Title (de)

Signalgenerator und Verfahren zur Signalerzeugung

Title (fr)

Générateur de signal et procédé de génération de signal

Publication

EP 2557472 A1 20130213 (EN)

Application

EP 11177486 A 20110812

Priority

EP 11177486 A 20110812

Abstract (en)

A signal generator (10) comprises a signal source (11) that is configured for generating a source signal (SO) and a buffer (12, 56). The buffer (12, 56) is configured for generating an internal signal (SI) and for generating a reference signal (SREF, SBG) by summing the internal signal (SI) to the source signal (SO) or to a signal (SO') derived from the source signal (SO). The sign of the temperature coefficient of the source signal (SO) is opposite to the sign of the temperature coefficient of the internal signal (SI).

IPC 8 full level

G05F 3/30 (2006.01)

CPC (source: EP)

G05F 3/30 (2013.01)

Citation (applicant)

  • US 7224210 B2 20070529 - GARLAPATI AKHIL K [US], et al
  • A. BROKAW: "A simple three-terminal IC bandgap reference", IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. SC-9, no. 6, 1974, pages 388 - 393, XP001404422
  • E. VITTOZ ET AL.: "A low-voltage CMOS bandgap reference", IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. SC-14, no. 3, 1979, pages 573 - 577, XP001404266

Citation (search report)

  • [XI] WO 9206424 A1 19920416 - ANALOG DEVICES INC [US]
  • [X] US 2007257655 A1 20071108 - NGUYEN NAM D [US]
  • [X] US 6362612 B1 20020326 - HARRIS LARRY L [US]
  • [A] US 6614209 B1 20030902 - GREGOIRE JR BERNARD ROBERT [US]
  • [A] US 6181121 B1 20010130 - KIRKLAND BRIAN [US], et al
  • [A] HONG-YI HUANG ET AL: "Piecewise linear curvature-compensated CMOS bandgap reference", ELECTRONICS, CIRCUITS AND SYSTEMS, 2008. ICECS 2008. 15TH IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 31 August 2008 (2008-08-31), pages 308 - 311, XP031362486, ISBN: 978-1-4244-2181-7, DOI: 10.1109/ICECS.2008.4674852
  • [A] UENO K ET AL: "A 300 nW, 15 ppm/C, 20 ppm/V CMOS Voltage Reference Circuit Consisting of Subthreshold MOSFETs", IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 44, no. 7, 1 July 2009 (2009-07-01), pages 2047 - 2054, XP011263260, ISSN: 0018-9200, DOI: 10.1109/JSSC.2009.2021922

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2557472 A1 20130213; EP 2557472 B1 20170405; WO 2013023998 A1 20130221

DOCDB simple family (application)

EP 11177486 A 20110812; EP 2012065627 W 20120809