DE68918667T2 - Regelbarer Verstärker. - Google Patents

Regelbarer Verstärker.

Info

Publication number
DE68918667T2
DE68918667T2 DE68918667T DE68918667T DE68918667T2 DE 68918667 T2 DE68918667 T2 DE 68918667T2 DE 68918667 T DE68918667 T DE 68918667T DE 68918667 T DE68918667 T DE 68918667T DE 68918667 T2 DE68918667 T2 DE 68918667T2
Authority
DE
Germany
Prior art keywords
adjustable amplifier
amplifier
adjustable
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 - Lifetime
Application number
DE68918667T
Other languages
English (en)
Other versions
DE68918667D1 (de
Inventor
Masashi Arai
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of DE68918667D1 publication Critical patent/DE68918667D1/de
Application granted granted Critical
Publication of DE68918667T2 publication Critical patent/DE68918667T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
DE68918667T 1988-11-18 1989-11-17 Regelbarer Verstärker. Expired - Lifetime DE68918667T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63292858A JPH0666614B2 (ja) 1988-11-18 1988-11-18 利得制御増幅回路

Publications (2)

Publication Number Publication Date
DE68918667D1 DE68918667D1 (de) 1994-11-10
DE68918667T2 true DE68918667T2 (de) 1995-05-18

Family

ID=17787283

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68918667T Expired - Lifetime DE68918667T2 (de) 1988-11-18 1989-11-17 Regelbarer Verstärker.

Country Status (5)

Country Link
US (1) US5030923A (de)
EP (1) EP0369469B1 (de)
JP (1) JPH0666614B2 (de)
KR (1) KR970004617B1 (de)
DE (1) DE68918667T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2690599B2 (ja) * 1990-05-18 1997-12-10 日本電気アイシーマイコンシステム株式会社 可変利得増幅器
US5432477A (en) * 1992-07-31 1995-07-11 Sony Corporation Wide frequency range amplifier apparatus
DE4235584A1 (de) * 1992-10-22 1994-04-28 Nokia Deutschland Gmbh Stellbarer elektronischer Widerstand
JP2889803B2 (ja) * 1993-11-22 1999-05-10 三洋電機株式会社 レベル設定回路
JP3479408B2 (ja) * 1996-04-23 2003-12-15 アルプス電気株式会社 Ａｇｃ電圧補正回路
EP0948132B1 (de) * 1998-03-31 2004-05-26 STMicroelectronics S.r.l. Verstärker mit programmierbarer Verstärkungs- und Eingangslinearität für Hochfrequenzleitungen
US6091275A (en) * 1998-06-02 2000-07-18 Maxim Integrated Products, Inc. Linear quad variable gain amplifier and method for implementing same
US7171170B2 (en) 2001-07-23 2007-01-30 Sequoia Communications Envelope limiting for polar modulators
US6798290B2 (en) * 2001-08-31 2004-09-28 Sequoia Communications Translinear variable gain amplifier
US6985703B2 (en) 2001-10-04 2006-01-10 Sequoia Corporation Direct synthesis transmitter
US7489916B1 (en) 2002-06-04 2009-02-10 Sequoia Communications Direct down-conversion mixer architecture
US7496338B1 (en) 2003-12-29 2009-02-24 Sequoia Communications Multi-segment gain control system
US7609118B1 (en) 2003-12-29 2009-10-27 Sequoia Communications Phase-locked loop calibration system
US7522017B1 (en) 2004-04-21 2009-04-21 Sequoia Communications High-Q integrated RF filters
US7672648B1 (en) 2004-06-26 2010-03-02 Quintics Holdings System for linear amplitude modulation
US7548122B1 (en) 2005-03-01 2009-06-16 Sequoia Communications PLL with switched parameters
US7479815B1 (en) 2005-03-01 2009-01-20 Sequoia Communications PLL with dual edge sensitivity
US7675379B1 (en) 2005-03-05 2010-03-09 Quintics Holdings Linear wideband phase modulation system
US7595626B1 (en) 2005-05-05 2009-09-29 Sequoia Communications System for matched and isolated references
US20070205200A1 (en) * 2006-03-02 2007-09-06 Brain Box Concepts Soap bar holder and method of supporting a soap bar
US7974374B2 (en) 2006-05-16 2011-07-05 Quintic Holdings Multi-mode VCO for direct FM systems
US7679468B1 (en) 2006-07-28 2010-03-16 Quintic Holdings KFM frequency tracking system using a digital correlator
US7522005B1 (en) 2006-07-28 2009-04-21 Sequoia Communications KFM frequency tracking system using an analog correlator
US7894545B1 (en) 2006-08-14 2011-02-22 Quintic Holdings Time alignment of polar transmitter
US7920033B1 (en) 2006-09-28 2011-04-05 Groe John B Systems and methods for frequency modulation adjustment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974438A (en) * 1973-09-13 1976-08-10 Rca Corporation Apparatus for indicating over-current condition in a transistor amplifier
JPS5320844A (en) * 1976-08-11 1978-02-25 Hitachi Ltd Gain control circuit
JPS5330850A (en) * 1976-09-03 1978-03-23 Hitachi Ltd Gain control circuit
JPS5696516A (en) * 1979-12-28 1981-08-04 Matsushita Electric Ind Co Ltd Gain adjusting circuit
JPS58115910A (ja) * 1981-12-29 1983-07-09 Matsushita Electric Ind Co Ltd 制御回路
JPS6190507A (ja) * 1984-10-09 1986-05-08 Toshiba Corp 自動利得制御回路

Also Published As

Publication number Publication date
EP0369469A2 (de) 1990-05-23
EP0369469A3 (de) 1991-07-03
KR900008769A (ko) 1990-06-04
DE68918667D1 (de) 1994-11-10
JPH0666614B2 (ja) 1994-08-24
JPH02137509A (ja) 1990-05-25
EP0369469B1 (de) 1994-10-05
US5030923A (en) 1991-07-09
KR970004617B1 (ko) 1997-03-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition