NO950175L - Klasse AB mottakt-drivkrets, fremgangsmåte derved og elektronisk krets for samme - Google Patents

Klasse AB mottakt-drivkrets, fremgangsmåte derved og elektronisk krets for samme

Info

Publication number
NO950175L
NO950175L NO950175A NO950175A NO950175L NO 950175 L NO950175 L NO 950175L NO 950175 A NO950175 A NO 950175A NO 950175 A NO950175 A NO 950175A NO 950175 L NO950175 L NO 950175L
Authority
NO
Norway
Prior art keywords
transistors
class
bases
occur
increase
Prior art date
Application number
NO950175A
Other languages
English (en)
Other versions
NO950175D0 (no
Inventor
Kazuo Yamashita
Nobuyuki Adachi
Masatoyo Nishibe
Masahiko Egawa
Akiharu Inoue
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Publication of NO950175D0 publication Critical patent/NO950175D0/no
Publication of NO950175L publication Critical patent/NO950175L/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • 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
    • 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
    • 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
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

To KPN transistorer (Qj og Q2) og to PNP transistorer (Qo og 04) har sine emittere koblet sammen. Konstante spennlngskretser (l og 2) holder spenningene konstant mellom basisene for transistorene (Oi og 03) og mellom basisene for transistorene (Q% °g °4 ) ¿ En differen- tlalinngangsspenning (Vj) påtrykkes mellom basisene for transistorene (Oj og 03). Kollektorstrømmene (Ij, 13 og I2« J4) e>ker eller avtar på en eksponentiell og dlfferentiell måte. Kollektorstrømmene (Ij, I3 eller I2, 14) blir omvendt og summert for å gl en klasse AB drlvstrøm og for å øke utgangsamplltuden. Symmetrien kan også forbedres. Siden enhver forskjell mellom signalforsterkningsbanene blir opphevet er det mindre sannsynlig at en differentlalfase mellom banelengdene vil oppstå i høyfrekvensområdet. Siden det ikke finnes noen tilbakekobling eller lignende for klasse AB drift, er det vanskelig for eventuell unormal osclllasjon å oppstå. Siden de konstante spennlngskretser (l og 2) er dannet av dioder (Dj-04), kan temperaturkarakterlstik- kene for transistorene (01-04) utlignes. Videre kan klasse AB mottakt-drivkretsen drives med en forholdsvis lav spenning. Transistorene (01-04) kan byttes ut med felteffekttransistorer.
NO950175A 1994-01-19 1995-01-17 Klasse AB mottakt-drivkrets, fremgangsmåte derved og elektronisk krets for samme NO950175L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP418194 1994-01-19
JP6144539A JPH07249946A (ja) 1994-01-19 1994-06-27 Ａｂ級プッシュプル駆動回路、その駆動方法及びこれを用いたａｂ級電子回路

Publications (2)

Publication Number Publication Date
NO950175D0 NO950175D0 (no) 1995-01-17
NO950175L true NO950175L (no) 1995-07-20

Family

ID=26337914

Family Applications (1)

Application Number Title Priority Date Filing Date
NO950175A NO950175L (no) 1994-01-19 1995-01-17 Klasse AB mottakt-drivkrets, fremgangsmåte derved og elektronisk krets for samme

Country Status (8)

Country Link
US (1) US5497124A (no)
EP (1) EP0664608A1 (no)
JP (1) JPH07249946A (no)
KR (1) KR100195308B1 (no)
CN (1) CN1048833C (no)
CA (1) CA2139911C (no)
NO (1) NO950175L (no)
TW (1) TW245855B (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0891650B1 (en) * 1997-02-07 2004-08-04 Koninklijke Philips Electronics N.V. An amplifier circuit, a transmitter and a wireless telephone
AU4883197A (en) 1997-10-23 1999-05-17 Telefonaktiebolaget Lm Ericsson (Publ) Differential voltage-to-current converter
JPH11163644A (ja) * 1997-11-26 1999-06-18 Fujitsu Ltd 差動増幅回路の出力回路
US6157255A (en) * 1999-01-28 2000-12-05 Agilent Technologies High performance operational amplifier
EP1168602B1 (en) * 2000-06-23 2005-11-23 STMicroelectronics S.r.l. Completely differential operational amplifier of the folded cascode type
US7839994B1 (en) 2005-03-01 2010-11-23 Marvell International Ltd. Class A-B line driver for gigabit Ethernet
JP2007153133A (ja) * 2005-12-05 2007-06-21 Denso Corp 車載電気装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038607A (en) * 1976-08-23 1977-07-26 Rca Corporation Complementary field effect transistor amplifier
JPS6113807A (ja) * 1984-06-29 1986-01-22 Pioneer Electronic Corp プッシュプル増幅回路
US4757273A (en) * 1987-07-13 1988-07-12 Derek Bray Complementary transconductance amplifiers
DE3728078A1 (de) * 1987-08-22 1989-03-02 Telefunken Electronic Gmbh Integrierte komplementaere gegentakt-b-endstufe
JPH0555836A (ja) * 1991-08-21 1993-03-05 Toshiba Corp 増幅器

Also Published As

Publication number Publication date
NO950175D0 (no) 1995-01-17
KR100195308B1 (ko) 1999-06-15
CN1048833C (zh) 2000-01-26
US5497124A (en) 1996-03-05
EP0664608A1 (en) 1995-07-26
TW245855B (en) 1995-04-21
CA2139911C (en) 1998-07-07
KR950035507A (ko) 1995-12-30
CA2139911A1 (en) 1995-07-20
JPH07249946A (ja) 1995-09-26
CN1113049A (zh) 1995-12-06

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application