FR2363226A1 - Circuit miroir de courant notamment destine a des demodulateurs stereophoniques - Google Patents
Circuit miroir de courant notamment destine a des demodulateurs stereophoniquesInfo
- 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
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.
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)
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)
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)
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 |
-
1976
- 1976-08-24 JP JP10101976A patent/JPS5326554A/ja active Pending
-
1977
- 1977-08-16 AU AU27952/77A patent/AU513957B2/en not_active Expired
- 1977-08-17 GB GB34560/77A patent/GB1567794A/en not_active Expired
- 1977-08-19 CA CA285,096A patent/CA1081331A/fr not_active Expired
- 1977-08-23 NL NL7709296A patent/NL7709296A/xx not_active Application Discontinuation
- 1977-08-24 US US05/827,381 patent/US4167649A/en not_active Expired - Lifetime
- 1977-08-24 FR FR7725858A patent/FR2363226A1/fr active Granted
- 1977-08-24 DE DE2738205A patent/DE2738205C2/de not_active Expired
- 1977-08-24 DE DE2760331A patent/DE2760331C2/de not_active Expired
Patent Citations (4)
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 |
---|---|---|---|
ST | Notification of lapse |