EP1894299A1 - Integrated relaxation voltage controlled oscillator and method of voltage controlled oscillation - Google Patents

Integrated relaxation voltage controlled oscillator and method of voltage controlled oscillation

Info

Publication number
EP1894299A1
EP1894299A1 EP05760643A EP05760643A EP1894299A1 EP 1894299 A1 EP1894299 A1 EP 1894299A1 EP 05760643 A EP05760643 A EP 05760643A EP 05760643 A EP05760643 A EP 05760643A EP 1894299 A1 EP1894299 A1 EP 1894299A1
Authority
EP
European Patent Office
Prior art keywords
switch
terminal
coupled
input
current
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.)
Withdrawn
Application number
EP05760643A
Other languages
German (de)
English (en)
French (fr)
Inventor
Liviu Chiaburu
Robert Dixon
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.)
NXP USA Inc
Original Assignee
Freescale Semiconductor Inc
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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of EP1894299A1 publication Critical patent/EP1894299A1/en
Withdrawn legal-status Critical Current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
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits
    • H03K3/0315—Ring oscillators
    • 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

Definitions

  • the first switch is configured to couple the second drain terminal to the third reference potential when the second switch decouples the first terminal of the second switch from the second terminal of the second switch, and decouple the second drain terminal from the third reference potential when the second switch couples the first terminal of the second switch with the second terminal of the second switch.
  • the reference current generating step comprises converting a first reference voltage to the reference current via a current mirror.
  • the reference current has a frequency based on a predetermined time reference, and the clock signal generating step comprises periodically charging/discharging the second capacitance at the frequency of the reference current.
  • the clock signal generating step comprises generating the clock signal based on the second capacitance (Cx), a first reference voltage (V I N), and the reference current (IR E F)-
  • the clock signal generating step comprises generating the clock signal having the period (T) such that
  • T I X (T 0 Z VREF) X (CX Z CY) Z IREF .

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
EP05760643A 2005-06-15 2005-06-15 Integrated relaxation voltage controlled oscillator and method of voltage controlled oscillation Withdrawn EP1894299A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/021089 WO2007001255A1 (en) 2005-06-15 2005-06-15 Integrated relaxation voltage controlled oscillator and method of voltage controlled oscillation

Publications (1)

Publication Number Publication Date
EP1894299A1 true EP1894299A1 (en) 2008-03-05

Family

ID=35708680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05760643A Withdrawn EP1894299A1 (en) 2005-06-15 2005-06-15 Integrated relaxation voltage controlled oscillator and method of voltage controlled oscillation

Country Status (3)

Country Link
EP (1) EP1894299A1 (ja)
JP (1) JP4902648B2 (ja)
WO (1) WO2007001255A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5515708B2 (ja) * 2009-12-11 2014-06-11 富士通株式会社 バイアス回路及びそれを有する増幅回路
CN107241083B (zh) * 2017-06-05 2020-08-04 上海爱信诺航芯电子科技有限公司 一种高精度自偏置时钟电路及相应的自偏置电路
DE102018115082A1 (de) 2018-06-22 2019-12-24 Mtu Friedrichshafen Gmbh Verfahren zum Betreiben einer Kolbenmaschine und eine Kolbenmaschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831113A (en) * 1973-06-01 1974-08-20 Rca Corp Relaxation oscillator
US3904988A (en) * 1974-09-11 1975-09-09 Motorola Inc CMOS voltage controlled oscillator
US4146849A (en) * 1977-01-31 1979-03-27 Tokyo Shibaura Electric Co., Ltd. Voltage controlled oscillator
US4321561A (en) * 1979-09-28 1982-03-23 Honeywell Inc. Switch operated capacitive oscillator apparatus
JPS60109332A (ja) * 1983-11-17 1985-06-14 Toshiba Corp 発振回路
SG34231A1 (en) * 1994-06-06 1996-12-06 Seiko Epson Corp Oscillation device display data processing device matrix-type display device oscillation signal generation method and display data processing method
JP3584552B2 (ja) * 1994-06-06 2004-11-04 セイコーエプソン株式会社 発振装置、表示データ処理装置、マトリックス型表示装置、発振信号生成方法及び表示データ処理方法
JP3176016B2 (ja) * 1995-01-05 2001-06-11 株式会社東芝 不揮発性半導体記憶装置
JP3647147B2 (ja) * 1996-06-28 2005-05-11 富士通株式会社 発振回路とそれを利用したｐｌｌ回路
US5969513A (en) * 1998-03-24 1999-10-19 Volterra Semiconductor Corporation Switched capacitor current source for use in switching regulators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007001255A1 *

Also Published As

Publication number Publication date
WO2007001255A1 (en) 2007-01-04
JP2008544641A (ja) 2008-12-04
JP4902648B2 (ja) 2012-03-21

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): DE FR GB

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Inventor name: CHIABURU, LIVIU

Inventor name: DIXON, ROBERT

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Designated state(s): DE FR GB

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Effective date: 20140103