FR2363226A1 - Circuit miroir de courant notamment destine a des demodulateurs stereophoniques - Google Patents

Circuit miroir de courant notamment destine a des demodulateurs stereophoniques

Info

Publication number
FR2363226A1
FR2363226A1 FR7725858A FR7725858A FR2363226A1 FR 2363226 A1 FR2363226 A1 FR 2363226A1 FR 7725858 A FR7725858 A FR 7725858A FR 7725858 A FR7725858 A FR 7725858A FR 2363226 A1 FR2363226 A1 FR 2363226A1
Authority
FR
France
Prior art keywords
output terminal
coupled
stereophonic
demodulators
transistor device
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.)
Granted
Application number
FR7725858A
Other languages
English (en)
Other versions
FR2363226B1 (fr
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2363226A1 publication Critical patent/FR2363226A1/fr
Application granted granted Critical
Publication of FR2363226B1 publication Critical patent/FR2363226B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/265—Current mirrors using bipolar transistors only
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled 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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/347—DC amplifiers in which all stages are DC-coupled with semiconductor devices only in integrated circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

a. Circuit miroir de courant notamment destiné à des démodulateurs stéréophoniques. b. Circuit caractérisé en ce qu'il comprend un troisième dispositif à transistors ayant une borne d'entrée et une première et une seconde bornes de sortie, ce troisième dispositif étant formé d'au moins une paire de transistors en montage Darlington, avec les bornes de sortie couplées aux bornes d'entrée du premier et du second dispositif à transistors, une première borne de sortie de courant couplée à l'une des bornes de sortie du premier dispositif à transistors, et une seconde borne de sortie de courant couplée à l'une des bornes de sortie du second dispositif à transistors, l'autre borne de sortie du premier et du second transistors étant susceptible de recevoir une tension de fonctionnement, la borne d'entrée du troisième dispositif à transistors étant couplée à la première borne de sortie de courant et l'autre borne de sortie du troisième transistor étant couplée à une tension de référence.
FR7725858A 1976-08-24 1977-08-24 Circuit miroir de courant notamment destine a des demodulateurs stereophoniques Granted FR2363226A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10101976A JPS5326554A (en) 1976-08-24 1976-08-24 Tr ansistor circuit

Publications (2)

Publication Number Publication Date
FR2363226A1 true FR2363226A1 (fr) 1978-03-24
FR2363226B1 FR2363226B1 (fr) 1984-04-27

Family

ID=14289482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725858A Granted FR2363226A1 (fr) 1976-08-24 1977-08-24 Circuit miroir de courant notamment destine a des demodulateurs stereophoniques

Country Status (8)

Country Link
US (1) US4167649A (fr)
JP (1) JPS5326554A (fr)
AU (1) AU513957B2 (fr)
CA (1) CA1081331A (fr)
DE (2) DE2738205C2 (fr)
FR (1) FR2363226A1 (fr)
GB (1) GB1567794A (fr)
NL (1) NL7709296A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57206113A (en) * 1981-06-12 1982-12-17 Nec Corp Amplifier for limiter
JPS59226531A (ja) * 1983-06-08 1984-12-19 Sony Corp Ｆｍステレオ復調回路
US4585953A (en) * 1983-07-20 1986-04-29 International Business Machines Corporation Low power off-chip driver circuit
DE3408220A1 (de) * 1984-03-07 1985-09-12 Telefunken electronic GmbH, 7100 Heilbronn Steuerbarer integrator
FR2684205A1 (fr) * 1991-11-22 1993-05-28 Thomson Composants Militaires Miroir de courant a faible erreur de recopie.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752934A (en) * 1969-12-19 1973-08-14 N Shoichi Stereo demodulating circuit triggered by a minimum input signal level
FR2224931A1 (fr) * 1973-04-06 1974-10-31 Rca Corp
FR2267658A1 (fr) * 1974-04-11 1975-11-07 Rca Corp
DE2520890A1 (de) * 1974-05-15 1975-12-04 Analog Devices Inc Transistorverstaerker der darlington- bauart mit interner vorspannung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233125A (en) * 1963-01-08 1966-02-01 Trw Semiconductors Inc Transistor technology
US3246210A (en) * 1963-05-09 1966-04-12 Ranco Inc Ice level control circuitry
US3281639A (en) * 1963-06-07 1966-10-25 Union Carbide Corp Battery charger
AU504958B2 (en) * 1975-10-09 1979-11-01 Sony Corporation Mpx demodulator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752934A (en) * 1969-12-19 1973-08-14 N Shoichi Stereo demodulating circuit triggered by a minimum input signal level
FR2224931A1 (fr) * 1973-04-06 1974-10-31 Rca Corp
FR2267658A1 (fr) * 1974-04-11 1975-11-07 Rca Corp
DE2520890A1 (de) * 1974-05-15 1975-12-04 Analog Devices Inc Transistorverstaerker der darlington- bauart mit interner vorspannung

Also Published As

Publication number Publication date
GB1567794A (en) 1980-05-21
US4167649A (en) 1979-09-11
DE2738205A1 (de) 1978-03-09
DE2760331C2 (fr) 1988-02-04
DE2738205C2 (de) 1986-09-04
AU513957B2 (en) 1981-01-15
JPS5326554A (en) 1978-03-11
FR2363226B1 (fr) 1984-04-27
NL7709296A (nl) 1978-02-28
CA1081331A (fr) 1980-07-08
AU2795277A (en) 1979-02-22

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Legal Events

Date Code Title Description
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