US1931070A - Automatic volume regulation - Google Patents

Automatic volume regulation Download PDF

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Publication number
US1931070A
US1931070A US482434A US48243430A US1931070A US 1931070 A US1931070 A US 1931070A US 482434 A US482434 A US 482434A US 48243430 A US48243430 A US 48243430A US 1931070 A US1931070 A US 1931070A
Authority
US
United States
Prior art keywords
tube
amplifier
current
cathode
vacuum tube
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 - Lifetime
Application number
US482434A
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English (en)
Inventor
Gullner Georg
Zepler Erich
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of US1931070A publication Critical patent/US1931070A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control

Definitions

  • the present invention relates to amplifier gain itself, however, as to both its-organization and control, and more particularly'to automatic gain method of operation'willcbest' be understood.
  • control 1 i r I 3 reference to the followingdescription taken in For automatic signal strength, or volume, v connectionwith the drawing in which we-have 6 regulation (fading regulation or compensation) indicated diagrammatically several circuit organ- 60'- in, receiver equipment, it is customary to use the izations whereby our invention maybe carried Iollowing'arrangement: The incoming radio finger fo effect. 1 A quency energy is rectified in a rectifier and flows "In the drawing, i I I through a resistance, the drop of potential across Fig. 1 S WS a Ci cu ying the inven- '10 the latter serving as a biasing potential for any ti e 65.
  • ume regulating scheme is'disclosed in the pres- In the presence of fluctuations theem'ission cure ntfinvention which is based upon the regulation rent of the magnetron, and thus the heating of of the heating of the cathode of thecontrolled a tube E of the amplifier arrangementis altered.
  • a high frequency amplifier tube including a cathode and a heating source therefor, a rectifier having its input connected with theinput circuit of said amplifier tube, and means connected to the rectifier output and heating source to vary the cathode heating to control the amplifier gain.
  • I 4 The method of operating a translating cir. cuit, including a three-element vacuum tube, which consists in producing a current whose amplitude is proportional to the envelope of the alternating input energy, applied to the tube and in so controlling the cathode emissivity of the vacuum tube in accordance with the amplitude of the current so produced that a predetermined relation between the input energy applied .to the system and, the output energy from the system will be obtained.
  • a translating circuit including a three-element, vacuum tube which consists in producing a current whose amplitude is proportional to the envelope of the alternating input energy applied to the tube and in soycontrolling the cathode emissivity of the tube in'accordance with the amplitude of the cur-.
  • a vacuum tube am plifienmeans to apply alternating currents to the grid circuit of said tube, means controlled by'said valternating current-iorproducing a direct current potential whose value is determined by the am the input circuit of said amplifier, a vacuum tube- V rectifier, means to apply said alternating current to said vacuum tube rectifier, thereby producing rectified direct current, and means to control the emissivity of the cathode of said vacuum tube amplifier in accordance with the amplitude of said rectified direct current.
  • a translating system a vacuum tube amplifier, meansto apply alternating current to the input circuit of said amplifier, a vacuum tube accordance withthe amplitude: of said rectified direct current.
  • a vacuum tube j amplifier means to apply alternating current to the input circuit of said amplifier, a vacuum tube rectifier, means to apply said alternating current to'said-vacuum tube rectifier,.thereby producing rectified direct current, and means including a magnetron tube to control the emissivityof the cathode of said'vacuum tube amplifier in accordance with the amplitude of said rectifiedv direct current.
  • a vacuum tube In a translating system, a vacuum tube.
  • the method of operating an electrical wave transmission network including an electron discharge tube which consists in producing a current whose amplitude is proportional to the en'- velope of alternating input energy applied to the" tube, and controlling the intensity of emission oi electrons in said tube inversely with the amplirectifier, means to apply said alternating current to the rectifier anode circuit and itscathode and anode connected respectively to the cathode and 'anode circuits of the amplifier to control the emissivity of the cathode of said vacuumtube amplifier in accordance with the amplitude of said rectified direct current.
  • a vacuum tube amplifier means to apply alternating current to the input circuit mu amplifier, a vacuum tube rectifier, meansto apply said alternating current to said vacuumtube rectifier, thereby producing rectified direct current, and means including a v magnetron tube having its ma gnetizin g 0011 connected to the anodes of the rectifier and ampli-. bomb, to control the emissivity of the cathode oi? said 'vacuumtube amplifier in accordance with r t the amplitude of said rectified direct current.

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  • Control Of High-Frequency Heating Circuits (AREA)
  • Amplifiers (AREA)
US482434A 1929-10-15 1930-09-17 Automatic volume regulation Expired - Lifetime US1931070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE151094X 1929-10-15

Publications (1)

Publication Number Publication Date
US1931070A true US1931070A (en) 1933-10-17

Family

ID=5674283

Family Applications (1)

Application Number Title Priority Date Filing Date
US482434A Expired - Lifetime US1931070A (en) 1929-10-15 1930-09-17 Automatic volume regulation

Country Status (3)

Country Link
US (1) US1931070A (de)
AT (1) AT124441B (de)
CH (1) CH151094A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662188A (en) * 1950-03-11 1953-12-08 Texas Co Voltage stabilizing amplifier system for neutron detectors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUT73708A (en) 1994-10-20 1996-09-30 Von Roll Umwelttechnik Ag Method and apparatous for pyrolizing of wastes
CH688840A5 (de) 1994-11-17 1998-04-15 Von Roll Umwelttechnik Ag Kühlbarer Rostblock.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662188A (en) * 1950-03-11 1953-12-08 Texas Co Voltage stabilizing amplifier system for neutron detectors

Also Published As

Publication number Publication date
CH151094A (de) 1931-11-30
AT124441B (de) 1931-09-10

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