DE2124654C3 - Schaltungsanordnung zur Steuerung der Mischverstärkung eines aktiven Gegentaktmodulator - Google Patents

Schaltungsanordnung zur Steuerung der Mischverstärkung eines aktiven Gegentaktmodulator

Info

Publication number
DE2124654C3
DE2124654C3 DE19712124654 DE2124654A DE2124654C3 DE 2124654 C3 DE2124654 C3 DE 2124654C3 DE 19712124654 DE19712124654 DE 19712124654 DE 2124654 A DE2124654 A DE 2124654A DE 2124654 C3 DE2124654 C3 DE 2124654C3
Authority
DE
Germany
Prior art keywords
transistor
circuit arrangement
base
transistors
emitter
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
DE19712124654
Other languages
German (de)
English (en)
Other versions
DE2124654A1 (de
DE2124654B2 (de
Inventor
Erhard Dr.Techn. 8000 Muenchen Steiner
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19712124655 priority Critical patent/DE2124655C3/de
Priority to DE19712124654 priority patent/DE2124654C3/de
Priority to CH167072A priority patent/CH538785A/de
Priority to AU40743/72A priority patent/AU459773B2/en
Priority to NL7206336A priority patent/NL149344B/xx
Priority to JP47048507A priority patent/JPS5219950B1/ja
Priority to IT2445472A priority patent/IT956263B/it
Priority to SE644772A priority patent/SE378721B/xx
Publication of DE2124654A1 publication Critical patent/DE2124654A1/de
Publication of DE2124654B2 publication Critical patent/DE2124654B2/de
Application granted granted Critical
Publication of DE2124654C3 publication Critical patent/DE2124654C3/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors
    • 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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)
DE19712124654 1971-05-18 1971-05-18 Schaltungsanordnung zur Steuerung der Mischverstärkung eines aktiven Gegentaktmodulator Expired DE2124654C3 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19712124655 DE2124655C3 (de) 1971-05-18 1971-05-18 Klirrarmer Frequenzerzeuger
DE19712124654 DE2124654C3 (de) 1971-05-18 1971-05-18 Schaltungsanordnung zur Steuerung der Mischverstärkung eines aktiven Gegentaktmodulator
CH167072A CH538785A (de) 1971-05-18 1972-02-04 Schaltungsanordnung zur klirrarmen Regelung der Ausgangsspannung eines Frequenzerzeugers
AU40743/72A AU459773B2 (en) 1971-05-18 1972-04-04 A low distortion contorl circuit for the output voltage of a frequency generator
NL7206336A NL149344B (nl) 1971-05-18 1972-05-10 Schakeling voor het met geringe vervorming op een constante amplitude regelen van de sinusvormige uitgangsspanning van een frequentiegenerator.
JP47048507A JPS5219950B1 (OSRAM) 1971-05-18 1972-05-16
IT2445472A IT956263B (it) 1971-05-18 1972-05-17 Disposizione circuitale per rego lare con bassa distorsione non lineare la tensione di uscita di un generatore di frequenza
SE644772A SE378721B (OSRAM) 1971-05-18 1972-05-17

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712124655 DE2124655C3 (de) 1971-05-18 1971-05-18 Klirrarmer Frequenzerzeuger
DE19712124654 DE2124654C3 (de) 1971-05-18 1971-05-18 Schaltungsanordnung zur Steuerung der Mischverstärkung eines aktiven Gegentaktmodulator

Publications (3)

Publication Number Publication Date
DE2124654A1 DE2124654A1 (de) 1972-11-30
DE2124654B2 DE2124654B2 (de) 1973-06-07
DE2124654C3 true DE2124654C3 (de) 1974-01-24

Family

ID=25761147

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19712124654 Expired DE2124654C3 (de) 1971-05-18 1971-05-18 Schaltungsanordnung zur Steuerung der Mischverstärkung eines aktiven Gegentaktmodulator
DE19712124655 Expired DE2124655C3 (de) 1971-05-18 1971-05-18 Klirrarmer Frequenzerzeuger

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19712124655 Expired DE2124655C3 (de) 1971-05-18 1971-05-18 Klirrarmer Frequenzerzeuger

Country Status (7)

Country Link
JP (1) JPS5219950B1 (OSRAM)
AU (1) AU459773B2 (OSRAM)
CH (1) CH538785A (OSRAM)
DE (2) DE2124654C3 (OSRAM)
IT (1) IT956263B (OSRAM)
NL (1) NL149344B (OSRAM)
SE (1) SE378721B (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989594A (OSRAM) * 1972-12-26 1974-08-27
US4337444A (en) * 1978-10-10 1982-06-29 Atari, Inc. Radio frequency oscillator-modulator circuit
JPS61177006A (ja) * 1985-01-31 1986-08-08 Sony Corp Ａｍ変調器
DE4324304B4 (de) * 1993-07-20 2005-01-27 Harman Becker Automotive Systems (Becker Division) Gmbh Verfahren zur Unterdrückung von Empfangsstörungen in einem FM-Empfänger

Also Published As

Publication number Publication date
IT956263B (it) 1973-10-10
DE2124654A1 (de) 1972-11-30
DE2124654B2 (de) 1973-06-07
SE378721B (OSRAM) 1975-09-08
CH538785A (de) 1973-06-30
AU459773B2 (en) 1975-04-10
JPS5219950B1 (OSRAM) 1977-05-31
NL149344B (nl) 1976-04-15
DE2124655B2 (OSRAM) 1973-10-11
AU4074372A (en) 1973-10-11
NL7206336A (OSRAM) 1972-11-21
DE2124655A1 (de) 1972-11-30
DE2124655C3 (de) 1974-05-09

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee