WO1996031947A3 - Offset-compensated linear rf detector - Google Patents

Offset-compensated linear rf detector Download PDF

Info

Publication number
WO1996031947A3
WO1996031947A3 PCT/FI1996/000179 FI9600179W WO9631947A3 WO 1996031947 A3 WO1996031947 A3 WO 1996031947A3 FI 9600179 W FI9600179 W FI 9600179W WO 9631947 A3 WO9631947 A3 WO 9631947A3
Authority
WO
WIPO (PCT)
Prior art keywords
detector
output
operation amplifier
voltages
voltage
Prior art date
Application number
PCT/FI1996/000179
Other languages
French (fr)
Other versions
WO1996031947A2 (en
Inventor
Andre Dekker
Original Assignee
Nokia Telecommunications Oy
Andre Dekker
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 Nokia Telecommunications Oy, Andre Dekker filed Critical Nokia Telecommunications Oy
Priority to AU51495/96A priority Critical patent/AU685359B2/en
Priority to US08/750,324 priority patent/US5987312A/en
Priority to DE69613531T priority patent/DE69613531T2/en
Priority to AT96908150T priority patent/ATE202662T1/en
Priority to EP96908150A priority patent/EP0767989B1/en
Priority to JP8530016A priority patent/JPH11504774A/en
Publication of WO1996031947A2 publication Critical patent/WO1996031947A2/en
Priority to NO965186A priority patent/NO965186L/en
Publication of WO1996031947A3 publication Critical patent/WO1996031947A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3211—Modifications of amplifiers to reduce non-linear distortion in differential amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection

Abstract

A known linear RF detector comprises a detector part having a detector diode (D1a) biased with a bias current (Ib), and a linearizer part having an operation amplifier (OA1) and a diode in its feedback path. The major drawback of the known detector concerns the output offset voltages, the values of which can be predicted only if the diodes are matched diodes and have the same temperature. Because of this, the detector part and the linearizer part cannot be placed on different circuit boards. The invention solves the problem by placing a transistor circuit (Q3a, Q2a) in the feedback path such that it generates an offset voltage at the output of the operation amplifier, the voltage being the sum of the base-emitter voltages of the transistors of the circuit. Further, a second transistor circuit (Q3b, Q2b) is arranged at the output of the operation amplifier such that it generates a voltage at the output of the operation amplifier that compensates for the sum of the base-emitter voltages of the transistor circuit. The voltages thus cancel each other and the output offset voltage of the detector is zero.
PCT/FI1996/000179 1995-04-05 1996-04-02 Offset-compensated linear rf detector WO1996031947A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU51495/96A AU685359B2 (en) 1995-04-05 1996-04-02 Offset-compensated linear RF detector
US08/750,324 US5987312A (en) 1995-04-05 1996-04-02 Offset-compensated linear RF detector having a detector part and a linearizer part
DE69613531T DE69613531T2 (en) 1995-04-05 1996-04-02 LINEAR OFFSET COMPENSATED HIGH FREQUENCY DETECTOR
AT96908150T ATE202662T1 (en) 1995-04-05 1996-04-02 LINEAR OFFSET COMPENSATED HIGH FREQUENCY DETECTOR
EP96908150A EP0767989B1 (en) 1995-04-05 1996-04-02 Offset-compensated linear rf detector
JP8530016A JPH11504774A (en) 1995-04-05 1996-04-02 Offset compensated linear RF detector
NO965186A NO965186L (en) 1995-04-05 1996-12-04 Deviation-compensated linear RF detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI951623A FI97655C (en) 1995-04-05 1995-04-05 Linear RF detector with offset compensation
FI951623 1995-04-05

Publications (2)

Publication Number Publication Date
WO1996031947A2 WO1996031947A2 (en) 1996-10-10
WO1996031947A3 true WO1996031947A3 (en) 1997-01-09

Family

ID=8543188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1996/000179 WO1996031947A2 (en) 1995-04-05 1996-04-02 Offset-compensated linear rf detector

Country Status (10)

Country Link
US (1) US5987312A (en)
EP (1) EP0767989B1 (en)
JP (1) JPH11504774A (en)
CN (1) CN1073760C (en)
AT (1) ATE202662T1 (en)
AU (1) AU685359B2 (en)
DE (1) DE69613531T2 (en)
FI (1) FI97655C (en)
NO (1) NO965186L (en)
WO (1) WO1996031947A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742845A (en) 1995-06-22 1998-04-21 Datascape, Inc. System for extending present open network communication protocols to communicate with non-standard I/O devices directly coupled to an open network
US6762643B2 (en) * 2001-04-11 2004-07-13 Koninklijke Philips Electronics N.V. High duty cycle offset compensation for operational amplifiers
KR100452918B1 (en) 2002-04-12 2004-10-14 한국디엔에스 주식회사 Spin-etcher with thickness measuring system
US6980116B2 (en) * 2002-12-20 2005-12-27 Motorola, Inc. Method for failure detection in a radio frequency device
US6825715B2 (en) * 2003-05-02 2004-11-30 Biode, Inc. Temperature compensated, high efficiency diode detector
US6998918B2 (en) * 2004-04-08 2006-02-14 Sige Semiconductor (U.S.), Corp. Automatic current reduction biasing technique for RF amplifier
JP4549743B2 (en) * 2004-06-07 2010-09-22 富士通セミコンダクター株式会社 Temperature sensor circuit and calibration method thereof
US7659707B2 (en) * 2007-05-14 2010-02-09 Hittite Microwave Corporation RF detector with crest factor measurement
JP2009105726A (en) * 2007-10-24 2009-05-14 Panasonic Corp High frequency power detection circuit and radio communications equipment
JP6616810B2 (en) * 2017-08-01 2019-12-04 アンリツ株式会社 Radio terminal reception characteristic measuring system and measuring method
US10658980B2 (en) * 2018-08-22 2020-05-19 Honeywell International Inc. Modulating input device having a full wave rectifier
CN110971229B (en) * 2019-12-26 2020-08-25 郑州科技学院 Electronic signal calibration system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460873A (en) * 1982-11-19 1984-07-17 Control Data Corporation Active differential output direct current offset voltage compensation circuit for a differential amplifier
EP0367707A2 (en) * 1988-10-31 1990-05-09 International Business Machines Corporation A circuit arrangement for adjusting offset voltages associates with operational amplifiers
US5097223A (en) * 1990-05-22 1992-03-17 Analog Devices, Inc. Current feedback audio power amplifier
US5132637A (en) * 1991-03-25 1992-07-21 Harris Corporation RF power amplifier system having improved distortion reduction
EP0638995A1 (en) * 1993-08-09 1995-02-15 AT&T Corp. A DC coupled amplifier FED by an RF detector

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758865A (en) * 1972-01-18 1973-09-11 Gen Motors Corp Bias voltage generator for the voltage-responsive tuning elements in an electronically tuned radio receiver
US4068187A (en) * 1976-03-19 1978-01-10 Hitachi, Ltd. Audio-frequency power amplifiers
US4502015A (en) * 1982-03-31 1985-02-26 General Electric Company Diode detector with linearity compensating circuit
JPH0263206A (en) * 1988-08-29 1990-03-02 Toshiba Corp Current mirror circuit
IT1244210B (en) * 1990-12-20 1994-07-08 Sgs Thomson Microelectronics UNIT-GAIN FINAL STAGE PARTICULARLY FOR MONOLITHICALLY INTEGRABLE POWER AMPLIFIERS
DE4311411A1 (en) * 1993-04-07 1994-10-13 Philips Patentverwaltung Amplifier arrangement
JP3167608B2 (en) * 1995-12-18 2001-05-21 日本マランツ株式会社 Wireless device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460873A (en) * 1982-11-19 1984-07-17 Control Data Corporation Active differential output direct current offset voltage compensation circuit for a differential amplifier
EP0367707A2 (en) * 1988-10-31 1990-05-09 International Business Machines Corporation A circuit arrangement for adjusting offset voltages associates with operational amplifiers
US5097223A (en) * 1990-05-22 1992-03-17 Analog Devices, Inc. Current feedback audio power amplifier
US5132637A (en) * 1991-03-25 1992-07-21 Harris Corporation RF power amplifier system having improved distortion reduction
EP0638995A1 (en) * 1993-08-09 1995-02-15 AT&T Corp. A DC coupled amplifier FED by an RF detector

Also Published As

Publication number Publication date
EP0767989A1 (en) 1997-04-16
CN1154183A (en) 1997-07-09
FI951623A0 (en) 1995-04-05
DE69613531D1 (en) 2001-08-02
ATE202662T1 (en) 2001-07-15
FI97655B (en) 1996-10-15
DE69613531T2 (en) 2002-03-28
CN1073760C (en) 2001-10-24
JPH11504774A (en) 1999-04-27
NO965186D0 (en) 1996-12-04
FI97655C (en) 1997-01-27
AU5149596A (en) 1996-10-23
NO965186L (en) 1997-02-04
WO1996031947A2 (en) 1996-10-10
EP0767989B1 (en) 2001-06-27
AU685359B2 (en) 1998-01-15
US5987312A (en) 1999-11-16

Similar Documents

Publication Publication Date Title
EP0744800B1 (en) Laser-diode driving circuit
KR100386812B1 (en) Temperature detecting circuit and liquid crystal driving device using same
US6329868B1 (en) Circuit for compensating curvature and temperature function of a bipolar transistor
WO1996031947A3 (en) Offset-compensated linear rf detector
US6674328B2 (en) Amplifier circuit
KR930011420A (en) Trim Correction Circuit with Temperature Compensation
US6181191B1 (en) Dual current source circuit with temperature coefficients of equal and opposite magnitude
GB2222497A (en) Operational amplifier
US20090072909A1 (en) Current mirror circuit
US5319303A (en) Current source circuit
US20070057730A1 (en) Margin tracking cascode current mirror system and method
US11456707B2 (en) Power amplifier circuit
FI73548C (en) OEVERSTROEMSKYDDSKRETS FOER EFFEKTTRANSISTOR.
KR100260811B1 (en) Amplifier
KR0149650B1 (en) Current amplifier
EP0953891A1 (en) Current mirrors
US6194886B1 (en) Early voltage and beta compensation circuit for a current mirror
EP0126330B1 (en) Enhanced-accuracy semiconductor power amplifier
KR0169987B1 (en) Amplifier arrangement
KR100232242B1 (en) Switching bridge amplifier
US5512858A (en) Amplifier stage with low thermal distortion
US6958653B2 (en) Temperature compensated amplifier
US5805004A (en) Integrated circuit arrangement for minimizing the temperature-dependant offset voltage of an amplifier
US4274058A (en) Amplifier with separate AC and DC feedback loops
US4926073A (en) Negative voltage clamp

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 96190474.7

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN

WWE Wipo information: entry into national phase

Ref document number: 1996908150

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 1996 530016

Country of ref document: JP

Kind code of ref document: A

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 08750324

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1996908150

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1996908150

Country of ref document: EP