DE69525635D1 - Temperaturkompensierter logarithmischer umformer - Google Patents

Temperaturkompensierter logarithmischer umformer

Info

Publication number
DE69525635D1
DE69525635D1 DE69525635T DE69525635T DE69525635D1 DE 69525635 D1 DE69525635 D1 DE 69525635D1 DE 69525635 T DE69525635 T DE 69525635T DE 69525635 T DE69525635 T DE 69525635T DE 69525635 D1 DE69525635 D1 DE 69525635D1
Authority
DE
Germany
Prior art keywords
logarithm
transformer
temperature compensated
compensated
temperature
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.)
Expired - Fee Related
Application number
DE69525635T
Other languages
English (en)
Other versions
DE69525635T2 (de
Inventor
Ernst Nordholt
Johannes Stoffels
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of DE69525635D1 publication Critical patent/DE69525635D1/de
Publication of DE69525635T2 publication Critical patent/DE69525635T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/001—Volume compression or expansion in amplifiers without controlling loop

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
DE69525635T 1994-09-30 1995-09-26 Temperaturkompensierter logarithmischer umformer Expired - Fee Related DE69525635T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/312,917 US5481218A (en) 1994-09-30 1994-09-30 Logarithmic converter
PCT/SE1995/001097 WO1996010796A1 (en) 1994-09-30 1995-09-26 Temperature compensated logarithmic convertor

Publications (2)

Publication Number Publication Date
DE69525635D1 true DE69525635D1 (de) 2002-04-04
DE69525635T2 DE69525635T2 (de) 2002-09-12

Family

ID=23213588

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69525635T Expired - Fee Related DE69525635T2 (de) 1994-09-30 1995-09-26 Temperaturkompensierter logarithmischer umformer

Country Status (8)

Country Link
US (1) US5481218A (de)
EP (1) EP0784825B1 (de)
CN (1) CN1167535A (de)
AU (1) AU706648B2 (de)
CA (1) CA2201292A1 (de)
DE (1) DE69525635T2 (de)
NO (1) NO971262L (de)
WO (1) WO1996010796A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5627461A (en) * 1993-12-08 1997-05-06 Nec Corporation Reference current circuit capable of preventing occurrence of a difference collector current which is caused by early voltage effect
US5910751A (en) * 1997-02-14 1999-06-08 International Business Machines Corporation Circuit arrangement and method with temperature dependent signal swing
JP2001007654A (ja) * 1999-06-21 2001-01-12 Mitsubishi Electric Corp 信号強度検出装置
DE10019879A1 (de) * 2000-04-20 2001-10-25 Degussa Verfahren zur Herstellung von 2,5-Diketopiperazinen, neue 2,5-Diketopiperazine und deren Verwendung
JP3748371B2 (ja) * 2000-09-14 2006-02-22 株式会社東芝 指数変換回路及びこれを用いた可変利得回路
US6507233B1 (en) * 2001-08-02 2003-01-14 Texas Instruments Incorporated Method and circuit for compensating VT induced drift in monolithic logarithmic amplifier
US6636099B2 (en) * 2001-09-06 2003-10-21 Maxim Integtated Products, Inc. Logarithmic amplifier with temperature compensated detection scheme
JP2005151543A (ja) * 2003-10-20 2005-06-09 Matsushita Electric Ind Co Ltd 増幅回路
EP1633096A1 (de) * 2004-08-26 2006-03-08 St Microelectronics S.A. Bestimmung der Träger- und Symbolfrequenz eines Signals
US7375578B1 (en) * 2004-10-29 2008-05-20 On Semiconductor Radio frequency envelope detector
US8032095B1 (en) * 2005-03-03 2011-10-04 Marvell International Ltd. Method and apparatus for detecting carrier leakage in a wireless or similar system
US7262661B2 (en) * 2005-06-27 2007-08-28 Linear Technology Corporation Variable gain amplifier with temperature compensation and gain linearity enhancement
US7573572B1 (en) 2005-09-07 2009-08-11 The United States Of America As Represented By The Secretary Of The Navy Drift tube amplifier and method to amplify current
US7389692B2 (en) * 2005-11-04 2008-06-24 Ge Inspection Technologies, Lp Digital log amplifier for ultrasonic testing
US20070121757A1 (en) * 2005-11-29 2007-05-31 Lichung Chu Calibration apparatus and method for quadrature modulation system
CN101886933B (zh) * 2010-07-16 2012-06-06 灿瑞半导体(上海)有限公司 带温度补偿的霍尔开关电路
ITMI20110584A1 (it) 2011-04-08 2012-10-09 St Microelectronics Srl Generatore di tensione a band-gap
CN102571227B (zh) * 2011-11-10 2014-04-16 嘉兴联星微电子有限公司 带直流失调消除功能的幅度检测电路
JP6598493B2 (ja) * 2015-04-17 2019-10-30 キヤノン株式会社 電流電圧変換回路、受信装置及び撮像システム
CN107238819B (zh) * 2017-06-07 2023-07-04 成都振芯科技股份有限公司 一种具有温度补偿功能的信号幅度控制装置
CN114113772A (zh) * 2021-11-22 2022-03-01 上海创远仪器技术股份有限公司 实现消除温度漂移误差的功率检波电路结构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569736A (en) * 1968-11-29 1971-03-09 Us Navy Temperature compensated logarithmic converter utilizing the exponential transfer function of a semiconductor diode junction
US3790819A (en) * 1972-03-17 1974-02-05 Perkin Elmer Corp Log amplifier apparatus
US4990803A (en) * 1989-03-27 1991-02-05 Analog Devices, Inc. Logarithmic amplifier
DE69206196T2 (de) * 1991-06-03 1996-06-27 Philips Electronics Nv Logarithmischer Verstärker und Detektor.
US5200655A (en) * 1991-06-03 1993-04-06 Motorola, Inc. Temperature-independent exponential converter
US5296761A (en) * 1992-11-23 1994-03-22 North American Philips Corporation Temperature-compensated logarithmic detector having a wide dynamic range
US5286969A (en) * 1993-01-28 1994-02-15 At&T Bell Laboratories Apparatus for measuring optical power in an optical receiver with a non-linear element and a transconductance amplifier

Also Published As

Publication number Publication date
CA2201292A1 (en) 1996-04-11
EP0784825B1 (de) 2002-02-27
NO971262D0 (no) 1997-03-19
EP0784825A1 (de) 1997-07-23
CN1167535A (zh) 1997-12-10
WO1996010796A1 (en) 1996-04-11
AU3624095A (en) 1996-04-26
AU706648B2 (en) 1999-06-17
US5481218A (en) 1996-01-02
DE69525635T2 (de) 2002-09-12
NO971262L (no) 1997-05-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee