DE10345131A1 - RC-Oszillatorschaltung - Google Patents

RC-Oszillatorschaltung Download PDF

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Publication number
DE10345131A1
DE10345131A1 DE10345131A DE10345131A DE10345131A1 DE 10345131 A1 DE10345131 A1 DE 10345131A1 DE 10345131 A DE10345131 A DE 10345131A DE 10345131 A DE10345131 A DE 10345131A DE 10345131 A1 DE10345131 A1 DE 10345131A1
Authority
DE
Germany
Prior art keywords
vth
oscillator circuit
integrator
supply voltage
oscillator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE10345131A
Other languages
English (en)
Other versions
DE10345131B4 (de
Inventor
Riccardo Serventi
Abramo Paolo D
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ams Osram AG
Original Assignee
Austriamicrosystems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Austriamicrosystems AG filed Critical Austriamicrosystems AG
Priority to DE10345131A priority Critical patent/DE10345131B4/de
Priority to JP2006527289A priority patent/JP2007507137A/ja
Priority to EP04764432A priority patent/EP1665528A1/de
Priority to PCT/EP2004/009455 priority patent/WO2005036748A1/de
Priority to US10/573,454 priority patent/US7474162B2/en
Publication of DE10345131A1 publication Critical patent/DE10345131A1/de
Application granted granted Critical
Publication of DE10345131B4 publication Critical patent/DE10345131B4/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/011—Modifications of generator to compensate for variations in physical values, e.g. voltage, temperature

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Analogue/Digital Conversion (AREA)
  • Dram (AREA)

Abstract

Es ist eine RC-Oszillatorschaltung angegeben, bei der ein Ladestrom (IPOSC1) in einem Integrator (1) aufintegriert wird. Eine Ausgangsspannung (VCAP) des Integrators wird mit einer Referenzschwelle (VTH) in einem Komparator (7) verglichen. Abhängig vom Vergleich wird in einem Taktgenerator (9) ein periodisches Signal erzeugt. Weiterhin ist ein Referenzgenerator (8) vorgesehen, der die Referenzschwelle (VTH) in Abhängigkeit von der Temperatur und der Versorgungsspannung der gesamten Schaltung erzeugt. Damit wird die Frequenzabhängigkeit des Oszillators von Schwankungen der Versorgungsspannung weitgehend kompensiert.
DE10345131A 2003-09-26 2003-09-26 RC-Oszillatorschaltung Expired - Lifetime DE10345131B4 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE10345131A DE10345131B4 (de) 2003-09-26 2003-09-26 RC-Oszillatorschaltung
JP2006527289A JP2007507137A (ja) 2003-09-26 2004-08-24 Ｒｃ発振回路
EP04764432A EP1665528A1 (de) 2003-09-26 2004-08-24 Rc-oszillatorschaltung
PCT/EP2004/009455 WO2005036748A1 (de) 2003-09-26 2004-08-24 Rc-oszillatorschaltung
US10/573,454 US7474162B2 (en) 2003-09-26 2004-08-24 RC-oscillator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10345131A DE10345131B4 (de) 2003-09-26 2003-09-26 RC-Oszillatorschaltung

Publications (2)

Publication Number Publication Date
DE10345131A1 true DE10345131A1 (de) 2005-05-04
DE10345131B4 DE10345131B4 (de) 2008-08-07

Family

ID=34399021

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10345131A Expired - Lifetime DE10345131B4 (de) 2003-09-26 2003-09-26 RC-Oszillatorschaltung

Country Status (5)

Country Link
US (1) US7474162B2 (de)
EP (1) EP1665528A1 (de)
JP (1) JP2007507137A (de)
DE (1) DE10345131B4 (de)
WO (1) WO2005036748A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034186B4 (de) 2007-07-23 2010-04-08 Texas Instruments Deutschland Gmbh Digital gesteuerter Oszillator
KR101153574B1 (ko) * 2010-10-12 2012-06-12 서울시립대학교 산학협력단 부궤환회로를 이용한 이완 발진기
WO2012099793A1 (en) * 2011-01-19 2012-07-26 Marvell World Trade, Ltd. Precision oscillator with temperature compensation
CN102386846B (zh) * 2011-08-26 2013-12-18 无锡中星微电子有限公司 可编程振荡器
CN103023461A (zh) * 2011-09-28 2013-04-03 华润矽威科技（上海）有限公司 Rc振荡电路
US8754690B2 (en) * 2012-10-26 2014-06-17 International Business Machines Corporation Programmable duty cycle setter employing time to voltage domain referenced pulse creation
US10483985B2 (en) * 2017-01-23 2019-11-19 Samsung Electronics Co., Ltd. Oscillator using supply regulation loop and operating method thereof
CN110943497B (zh) * 2018-09-21 2022-03-29 北京兆易创新科技股份有限公司 一种充放电电路及振荡器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4340924C2 (de) * 1993-12-01 1995-10-05 Telefunken Microelectron Frequenzstabiler RC-Oszillator
WO1996013903A1 (en) * 1994-11-01 1996-05-09 Försvarets Forskningsanstalt Analog-to-digital converter and sensor device comprising such a converter
WO1997045956A1 (en) * 1996-05-24 1997-12-04 Microchip Technology, Inc. Accurate rc oscillator having peak-to-peak voltage control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594565A (en) * 1984-08-30 1986-06-10 Cordis Corporation Clock oscillator for a cardiac pacer having frequency compensation for temperature and voltage fluctuations
GB2351619A (en) * 1999-07-01 2001-01-03 Ericsson Telefon Ab L M A frequency trimmable oscillator with insensitivity to power supply variations and parasitic capacitance
EP1351389A1 (de) * 2002-04-02 2003-10-08 Dialog Semiconductor GmbH Verfahren und Schaltung zum Kompensieren von MOSFET-Kapazitätsänderungen in integrierten Schaltungen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4340924C2 (de) * 1993-12-01 1995-10-05 Telefunken Microelectron Frequenzstabiler RC-Oszillator
WO1996013903A1 (en) * 1994-11-01 1996-05-09 Försvarets Forskningsanstalt Analog-to-digital converter and sensor device comprising such a converter
WO1997045956A1 (en) * 1996-05-24 1997-12-04 Microchip Technology, Inc. Accurate rc oscillator having peak-to-peak voltage control

Also Published As

Publication number Publication date
DE10345131B4 (de) 2008-08-07
WO2005036748A1 (de) 2005-04-21
JP2007507137A (ja) 2007-03-22
US7474162B2 (en) 2009-01-06
US20070103244A1 (en) 2007-05-10
EP1665528A1 (de) 2006-06-07

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R071 Expiry of right