CA1071445A - Temperature compensated antilogarithmic converter - Google Patents

Temperature compensated antilogarithmic converter

Info

Publication number
CA1071445A
CA1071445A CA278,273A CA278273A CA1071445A CA 1071445 A CA1071445 A CA 1071445A CA 278273 A CA278273 A CA 278273A CA 1071445 A CA1071445 A CA 1071445A
Authority
CA
Canada
Prior art keywords
temperature
voltage
antilogarithmic
signal
compensated
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
Application number
CA278,273A
Other languages
English (en)
French (fr)
Inventor
Masaru Uya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA1071445A publication Critical patent/CA1071445A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H5/00—Instruments in which the tones are generated by means of electronic generators
    • G10H5/002—Instruments using voltage controlled oscillators and amplifiers or voltage controlled oscillators and filters, e.g. Synthesisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only

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)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Electrophonic Musical Instruments (AREA)
CA278,273A 1976-05-17 1977-05-12 Temperature compensated antilogarithmic converter Expired CA1071445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5689776A JPS52139413A (en) 1976-05-17 1976-05-17 Sound source device for electronic instrument

Publications (1)

Publication Number Publication Date
CA1071445A true CA1071445A (en) 1980-02-12

Family

ID=13040227

Family Applications (1)

Application Number Title Priority Date Filing Date
CA278,273A Expired CA1071445A (en) 1976-05-17 1977-05-12 Temperature compensated antilogarithmic converter

Country Status (4)

Country Link
US (1) US4168492A (enExample)
JP (1) JPS52139413A (enExample)
CA (1) CA1071445A (enExample)
DE (1) DE2722714C2 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841600Y2 (ja) * 1978-02-28 1983-09-20 京王技研工業株式会社 鍵盤楽器用発振器
US4529966A (en) * 1983-10-11 1985-07-16 The United States Of America As Represented By The Secretary Of The Navy High-speed bipolar logarithmic analog-to-digital converter
DE3508070C1 (de) * 1985-03-07 1986-06-05 Rohde & Schwarz GmbH & Co KG, 8000 München Temperaturkompensierte Schaltung zum Erzeugen einer dem Logarithmus einer Eingangswechselspannung proportionalen Ausgangsgleichspannung
DE3631285A1 (de) * 1986-09-13 1988-03-24 Vdo Schindling Anordnung zur einstellung eines analogen widerstands auf einen waehlbaren, digital vorgebbaren wert
US5200655A (en) * 1991-06-03 1993-04-06 Motorola, Inc. Temperature-independent exponential converter
DE4124585A1 (de) * 1991-07-24 1993-01-28 Siemens Ag Steuerbare schaltungsanordnung
EP0613243A1 (en) * 1993-02-26 1994-08-31 STMicroelectronics S.r.l. Anti-logarithmic converter with temperature compensation
US5400025A (en) * 1993-03-31 1995-03-21 Honeywell Inc. Temperature corrected integrating analog-to-digital converter
US5490057A (en) * 1994-05-06 1996-02-06 Vlt Corporation Feedback control system having predictable open-loop gain
CH697322B1 (fr) * 2000-06-13 2008-08-15 Em Microelectronic Marin Sa Procédé de génération d'un courant sensiblement indépendent de la température et dispositif permettant de mettre en oeuvre ce procédé.
KR20050032810A (ko) * 2003-10-02 2005-04-08 삼성전자주식회사 자동 이득 제어 루프를 위한 온도 보상 장치
US7545197B2 (en) * 2007-06-22 2009-06-09 Honeywell International Inc. Anti-logarithmic amplifier designs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444362A (en) * 1964-10-30 1969-05-13 Teledyne Inc Antilogarithmic function generator
FR1583989A (enExample) * 1968-06-25 1969-12-12
JPS552876B2 (enExample) * 1973-11-02 1980-01-22
JPS5729655B2 (enExample) * 1974-06-06 1982-06-24
US3940760A (en) * 1975-03-21 1976-02-24 Analog Devices, Inc. Digital-to-analog converter with current source transistors operated accurately at different current densities
US4063116A (en) * 1976-08-26 1977-12-13 Raytheon Company Temperature compensated current source
JPS5913475B2 (ja) * 1978-12-19 1984-03-29 日本特殊陶業株式会社 セラミツク・スロ−アウエイチツプとその製造法

Also Published As

Publication number Publication date
US4168492A (en) 1979-09-18
JPS52139413A (en) 1977-11-21
JPS5735474B2 (enExample) 1982-07-29
DE2722714C2 (de) 1982-08-12
DE2722714A1 (de) 1977-12-08

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Legal Events

Date Code Title Description
MKEX Expiry