DE68912363D1 - Logarithmischer Verstärker. - Google Patents

Logarithmischer Verstärker.

Info

Publication number
DE68912363D1
DE68912363D1 DE89200447T DE68912363T DE68912363D1 DE 68912363 D1 DE68912363 D1 DE 68912363D1 DE 89200447 T DE89200447 T DE 89200447T DE 68912363 T DE68912363 T DE 68912363T DE 68912363 D1 DE68912363 D1 DE 68912363D1
Authority
DE
Germany
Prior art keywords
logarithmic amplifier
logarithmic
amplifier
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
DE89200447T
Other languages
English (en)
Other versions
DE68912363T2 (de
Inventor
Arnoldus Garskamp
Gils Cornelis Johannes Mar Van
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Priority claimed from NL8800510A external-priority patent/NL8800510A/nl
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE68912363D1 publication Critical patent/DE68912363D1/de
Application granted granted Critical
Publication of DE68912363T2 publication Critical patent/DE68912363T2/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
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
DE68912363T 1988-02-29 1989-02-22 Logarithmischer Verstärker. Expired - Fee Related DE68912363T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8800510A NL8800510A (nl) 1988-02-29 1988-02-29 Schakeling voor het lineair versterken en demoduleren van een am-gemoduleerd signaal en geintegreerd halfgeleiderelement daarvoor.
NL8800511 1988-02-29

Publications (2)

Publication Number Publication Date
DE68912363D1 true DE68912363D1 (de) 1994-03-03
DE68912363T2 DE68912363T2 (de) 1994-07-28

Family

ID=26646354

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68912363T Expired - Fee Related DE68912363T2 (de) 1988-02-29 1989-02-22 Logarithmischer Verstärker.

Country Status (4)

Country Link
US (1) US5049829A (de)
EP (1) EP0331246B1 (de)
JP (1) JPH0738554B2 (de)
DE (1) DE68912363T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241806B (en) * 1990-03-09 1993-09-29 Plessey Co Ltd Improvements in true logarithmic amplifiers
JP2687713B2 (ja) * 1990-10-30 1997-12-08 日本電気株式会社 対数増幅回路
JP2995886B2 (ja) * 1991-02-28 1999-12-27 日本電気株式会社 対数増幅回路
US5298811A (en) * 1992-08-03 1994-03-29 Analog Devices, Inc. Synchronous logarithmic amplifier
US5296761A (en) * 1992-11-23 1994-03-22 North American Philips Corporation Temperature-compensated logarithmic detector having a wide dynamic range
US5489868A (en) * 1994-10-04 1996-02-06 Analog Devices, Inc. Detector cell for logarithmic amplifiers
CA2386851A1 (en) * 2001-07-10 2003-01-10 Robert J. Davies Logarithmic amplifier
DE10319637A1 (de) 2003-05-02 2004-12-02 Deutsche Telekom Ag Analoge Schaltungsanordnung zur Erzeugung elliptischer Funktionen
EP2147322B1 (de) * 2007-05-14 2013-03-06 Hittite Microwave Corporation Hf-detektor mit scheitelfaktormessung
US8614603B1 (en) 2010-06-09 2013-12-24 Rockwell Collins, Inc. Auto leveling receiver
TW201636625A (zh) 2014-12-22 2016-10-16 美高森美股份有限公司 對數線性功率偵測器
US10608600B2 (en) 2015-12-23 2020-03-31 Analog Devices, Inc Adaptable receiver amplifier
CN113261004A (zh) * 2019-02-01 2021-08-13 华为技术有限公司 一种对数放大器
TWI716817B (zh) 2019-02-19 2021-01-21 立積電子股份有限公司 其電晶體都是雙極性接面型電晶體的功率偵測器
CN110266282B (zh) * 2019-05-31 2022-05-06 中国电子科技集团公司第二十四研究所 一种可变增益的双极性脉冲放大器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3605027A (en) * 1969-02-19 1971-09-14 Us Navy Amplifier
US3757136A (en) * 1971-12-20 1973-09-04 Us Army Direct coupled logarithmic video amplifier
US3991301A (en) * 1975-05-29 1976-11-09 Westinghouse Electric Corporation Logarithmic frequency to voltage converter
DE2606270C3 (de) * 1976-02-17 1978-11-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Mehrstufige Begrenzerverstärkerschaltung
EP0060662B1 (de) * 1981-03-06 1989-03-08 United Kingdom Atomic Energy Authority Logarithmischer Verstärker
GB2158310A (en) * 1984-04-30 1985-11-06 Philips Electronic Associated A receiver for amplitude modulated signals
US4716316A (en) * 1985-02-04 1987-12-29 Varian Associates, Inc. Full wave, self-detecting differential logarithmic rf amplifier
US4758793A (en) * 1987-02-10 1988-07-19 Raytheon Company Detector log video amplifier

Also Published As

Publication number Publication date
EP0331246A1 (de) 1989-09-06
JPH01253307A (ja) 1989-10-09
DE68912363T2 (de) 1994-07-28
US5049829A (en) 1991-09-17
EP0331246B1 (de) 1994-01-19
JPH0738554B2 (ja) 1995-04-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee