SE420142B - Kretsanordning for kontroll av vilostrommen i ett forsterkarsteg av klass ab - Google Patents

Kretsanordning for kontroll av vilostrommen i ett forsterkarsteg av klass ab

Info

Publication number
SE420142B
SE420142B SE8002484A SE8002484A SE420142B SE 420142 B SE420142 B SE 420142B SE 8002484 A SE8002484 A SE 8002484A SE 8002484 A SE8002484 A SE 8002484A SE 420142 B SE420142 B SE 420142B
Authority
SE
Sweden
Prior art keywords
current
load
resistor
amplifier
main current
Prior art date
Application number
SE8002484A
Other languages
English (en)
Swedish (sv)
Inventor
R Gustafsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8002484A priority Critical patent/SE420142B/sv
Priority to GB8036307A priority patent/GB2072979A/en
Priority to GB8108322A priority patent/GB2073524B/en
Priority to US06/246,910 priority patent/US4415865A/en
Priority to FR8105836A priority patent/FR2479602B1/fr
Priority to IT20876/81A priority patent/IT1137120B/it
Publication of SE420142B publication Critical patent/SE420142B/sv

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
    • H03F1/3217—Modifications of amplifiers to reduce non-linear distortion in single ended push-pull amplifiers
    • 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3083—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type
    • H03F3/3086—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
SE8002484A 1980-04-01 1980-04-01 Kretsanordning for kontroll av vilostrommen i ett forsterkarsteg av klass ab SE420142B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8002484A SE420142B (sv) 1980-04-01 1980-04-01 Kretsanordning for kontroll av vilostrommen i ett forsterkarsteg av klass ab
GB8036307A GB2072979A (en) 1980-04-01 1980-11-12 Amplifier having a controlled quiescent current
GB8108322A GB2073524B (en) 1980-04-01 1981-03-17 Class ab amplifying circuit
US06/246,910 US4415865A (en) 1980-04-01 1981-03-23 Circuit arrangement for controlling the quiescent current in a class AB amplifier stage
FR8105836A FR2479602B1 (fr) 1980-04-01 1981-03-24 Circuit de commande du courant de repos d'un etage amplificateur de classe ab
IT20876/81A IT1137120B (it) 1980-04-01 1981-04-01 Disposizione circuitale per controllare la corrente di riposo in uno stadio di amplificatore di classe ab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8002484A SE420142B (sv) 1980-04-01 1980-04-01 Kretsanordning for kontroll av vilostrommen i ett forsterkarsteg av klass ab

Publications (1)

Publication Number Publication Date
SE420142B true SE420142B (sv) 1981-09-14

Family

ID=20340657

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002484A SE420142B (sv) 1980-04-01 1980-04-01 Kretsanordning for kontroll av vilostrommen i ett forsterkarsteg av klass ab

Country Status (5)

Country Link
US (1) US4415865A (fr)
FR (1) FR2479602B1 (fr)
GB (2) GB2072979A (fr)
IT (1) IT1137120B (fr)
SE (1) SE420142B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054938A1 (fr) * 1980-12-23 1982-06-30 Zdzislaw Gulczynski Amplificateur de puissance ayant un régulateur de courant de repos
IT1233417B (it) * 1987-12-03 1992-03-30 Sgs Microelettronica Spa Stadio di potenza perfezionato, con incremento della dinamica di uscita.
FR2702897B1 (fr) * 1993-03-19 1995-04-28 Valeo Electronique Amplificateur à fréquence intermédiaire embarqué, récepteur embarqué de signaux comme une télécommande.
US5321325A (en) * 1993-07-06 1994-06-14 Lannes Kenneth J Single input push-pull circuit
JP2005348239A (ja) 2004-06-04 2005-12-15 Agilent Technol Inc 電力増幅装置
US7839994B1 (en) 2005-03-01 2010-11-23 Marvell International Ltd. Class A-B line driver for gigabit Ethernet
US9407208B2 (en) 2014-11-07 2016-08-02 Lattice Semiconductor Corporation Class AB amplifier with programmable quiescent current

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399355A (en) * 1965-12-02 1968-08-27 Bell Telephone Labor Inc Transistor amplifier with cllass ab biasing circuit
GB1201516A (en) * 1967-06-14 1970-08-05 Sperry Rand Corp Improvements in or relating to push-pull amplifiers
US3758814A (en) * 1971-01-15 1973-09-11 Rca Corp Wide angle deflection system
DE2649718C3 (de) * 1976-10-29 1979-07-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zum Ansteuern der Ablenkspule einer Bildröhre
US4207475A (en) * 1978-07-31 1980-06-10 Kepco, Inc. Efficient bipolar regulated power supply

Also Published As

Publication number Publication date
GB2073524B (en) 1984-07-11
FR2479602B1 (fr) 1987-11-20
IT1137120B (it) 1986-09-03
GB2072979A (en) 1981-10-07
GB2073524A (en) 1981-10-14
FR2479602A1 (fr) 1981-10-02
US4415865A (en) 1983-11-15
IT8120876A0 (it) 1981-04-01

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