ES467264A1 - Amplification control coupling with transistor - has diode semiconductor in current-reflective circuit including voltage supply control - Google Patents

Amplification control coupling with transistor - has diode semiconductor in current-reflective circuit including voltage supply control

Info

Publication number
ES467264A1
ES467264A1 ES467264A ES467264A ES467264A1 ES 467264 A1 ES467264 A1 ES 467264A1 ES 467264 A ES467264 A ES 467264A ES 467264 A ES467264 A ES 467264A ES 467264 A1 ES467264 A1 ES 467264A1
Authority
ES
Spain
Prior art keywords
transistor
current
amplification control
voltage supply
circuit including
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.)
Expired
Application number
ES467264A
Other languages
Spanish (es)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of ES467264A1 publication Critical patent/ES467264A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

The amplification control coupling utilises a current reflecting-circuit (CRC) and comprises a transistor (2) with a diode semi-conductor (1) (DSC). These two components are separately connected to a reference potential (M), and one of the connections inc a controllable voltage-supply (CVS). The CVS has a low internal resistance whereby variations in CRC current provoke a relative current modification fine amplification control obtains with exponential inflection obviated. The transistor (2) is active in the emissive circuit and its control path is mounted in parallel with the DSC (1). Electropost-amplifier, with the case and collector connected to the outlet and inlet resp. The emitter of the transistor is connected to a reference potential (M) of the two amplifiers.
ES467264A 1977-02-24 1978-02-23 Amplification control coupling with transistor - has diode semiconductor in current-reflective circuit including voltage supply control Expired ES467264A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2707870A DE2707870C2 (en) 1977-02-24 1977-02-24 Circuit arrangement for gain control

Publications (1)

Publication Number Publication Date
ES467264A1 true ES467264A1 (en) 1980-02-01

Family

ID=6001999

Family Applications (1)

Application Number Title Priority Date Filing Date
ES467264A Expired ES467264A1 (en) 1977-02-24 1978-02-23 Amplification control coupling with transistor - has diode semiconductor in current-reflective circuit including voltage supply control

Country Status (8)

Country Link
BE (1) BE864142A (en)
DE (1) DE2707870C2 (en)
DK (1) DK82278A (en)
ES (1) ES467264A1 (en)
FR (1) FR2382131A1 (en)
IT (1) IT1094218B (en)
LU (1) LU79109A1 (en)
NL (1) NL7802048A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002311A (en) * 1960-03-09 1961-10-03 James G Kyper Fishing lure
DE2946305A1 (en) * 1979-11-16 1981-05-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt IMPEDANCE CIRCUIT WITH CONTROLLABLE RESISTANCE
DE3116262A1 (en) * 1981-04-24 1982-11-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "CIRCUIT ARRANGEMENT FOR GENERATING CONTROL SIZES FROM THE LOOP CURRENT"
EP0102945A1 (en) * 1982-03-04 1984-03-21 Standard Telephones And Cables Public Limited Company Waveform clipping circuits
DE3235686A1 (en) * 1982-03-15 1983-09-22 Wilfred E. Zürich Schönmann Counterflow heat exchanger having a tiltable coil
DE3329665A1 (en) * 1983-08-17 1985-03-07 Telefunken electronic GmbH, 7100 Heilbronn CIRCUIT ARRANGEMENT FOR THE AMPLIFICATION OF ELECTRICAL SIGNALS
GB8702730D0 (en) * 1987-02-06 1987-03-11 Shaffer A E Weedless fish lure
US5195268A (en) * 1991-11-21 1993-03-23 Ellis Gregory T Weedless hook for lures
US5218778A (en) * 1992-05-28 1993-06-15 Szantor Alfons J Fishing lure
DE102004004862B4 (en) * 2004-01-30 2010-04-08 Infineon Technologies Ag Integrated semiconductor diode arrangement and integrated semiconductor device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911547A1 (en) * 1969-03-07 1970-09-24 Blaupunkt Werke Gmbh Adjustable AC voltage amplifier
DE2308835C3 (en) * 1972-03-02 1986-03-27 Sony Corp., Tokio/Tokyo Adjustable amplifier for electrical signals
US3873933A (en) * 1973-11-08 1975-03-25 Rca Corp Circuit with adjustable gain current mirror amplifier
DE2402801C2 (en) * 1974-01-22 1982-08-05 Robert Bosch Gmbh, 7000 Stuttgart Transistor hearing aid amplifier with automatic gain control
NL7414217A (en) * 1974-10-31 1976-05-04 Philips Nv AMPLIFIER WITH SIGNAL LEVEL CONTROL.

Also Published As

Publication number Publication date
DK82278A (en) 1978-08-25
IT1094218B (en) 1985-07-26
NL7802048A (en) 1978-08-28
IT7820494A0 (en) 1978-02-21
DE2707870C2 (en) 1983-04-28
DE2707870A1 (en) 1978-08-31
FR2382131A1 (en) 1978-09-22
LU79109A1 (en) 1978-06-27
BE864142A (en) 1978-06-16

Similar Documents

Publication Publication Date Title
GB946929A (en) A voltage comparator including semiconductor current amplifiers
ES467264A1 (en) Amplification control coupling with transistor - has diode semiconductor in current-reflective circuit including voltage supply control
GB782337A (en) Improvements in or relating to circuit arrangements comprising a photo-transistor
GB752981A (en) Improvements in or relating to amplifying cascades employing transistors
GB742212A (en) Improvements in or relating to transistor amplifiers
JPS54136261A (en) Current inversion circuit
GB1469990A (en) Gain control circuit
GB1322450A (en) Transistor circuits
GB785986A (en) Transistor circuits
ES422937A1 (en) Amplifier which consumes a substantially constant current
ES437556A1 (en) Oscillator circuit
US2863065A (en) Reflex circuit system
JPS5568686A (en) Semiconductor light emission device
FR2281603A1 (en) Voltage regulator with defined temp. coefft. - has coefft. determined by resistance values and transistor collector currents
JPS5779715A (en) Envelope detection circuit
JPS55149866A (en) Wave peak value detector
GB867954A (en) Improvements in transistor circuit arrangements
ATE97769T1 (en) FULL BAND AMPLIFIER WITH CONSTANT GAIN AND HIGH FREQUENCY DETERMINED INPUT IMPEDANCE.
GB752055A (en) Improvements in or relating to electric supply circuits
JPS5792909A (en) Power amplifying circuit
JPS54157459A (en) Amplifier circuit
GB757214A (en) Improvements in or relating to transistor amplifier circuits
JPS5493949A (en) Amplifier
JPS57141131A (en) Logical circuit
JPS5539056A (en) Main voltage detecting circuit