US1797985A - Electrical system - Google Patents

Electrical system Download PDF

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Publication number
US1797985A
US1797985A US178475A US17847527A US1797985A US 1797985 A US1797985 A US 1797985A US 178475 A US178475 A US 178475A US 17847527 A US17847527 A US 17847527A US 1797985 A US1797985 A US 1797985A
Authority
US
United States
Prior art keywords
anode
rectifier
cathode
grid
current
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
US178475A
Other languages
English (en)
Inventor
Edward W Kellogg
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority to NL25410D priority Critical patent/NL25410C/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US178475A priority patent/US1797985A/en
Priority to FR653260D priority patent/FR653260A/fr
Priority to DEI33910D priority patent/DE508897C/de
Priority to FR37644D priority patent/FR37644E/fr
Application granted granted Critical
Publication of US1797985A publication Critical patent/US1797985A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes

Definitions

  • My invention relates to electrical systems comprising a space discharge device which is provided with a grid arranged to control the current transmitted between its cathode and anode, and has for its principal object the provision of an improved apparatus and method of operation whereby the control of the grid potential of such devices is greatly simplified.
  • the drawing is a wiring diagram of a system wherein my invention has been embodied.
  • This system comprises a thermionic amplifier land transformer 2 which are interconnected through a rectifier 3 provided with a cathode 4, an anode 5 and auxiliary electrode 6. Heating current is supplied to the cathode 4 through winding 7 of the transformer 2.
  • the amplifier 1 comprises a cathode 8 connected through the rectifier 3 to one terminal of a secondary winding 9 of the transformer 2, an anode 10 connected to the other terminal of this winding through an output transformer 11 and reactors 12 and 13, and a control grid 14 connected to the cathode 8 through an input transformer 15 and the auxiliary anode 6 of the rectifier 3.
  • a filter which includes the reactors 12 and Band a plurality of condensers 16, 17 and 18 1s provided for smoothing out the ripples of the rectified current supplied to the output circuit of the amplifier, and condensers 19 and 20 and reactor 21 are connected in the grid circuit of the amplifier for a like purpose.
  • the auxihary anode 6 takes a potential practically equal to the extreme negative potential reached by the cathode 4, a negligibly small electron current between the cathode and anode 6, being suflicient to keep the latter charged.
  • the extreme negative potential reached by the cathode is negative with respect to the main anode 5 by the amount of the space charge drop in the recti- 80 bomb during that fractionof the cycle when electrons are passing from cathode 4 to anode 5. Therefore, anode 6 is negative'with respect to anode 5 by the amount of the space charge drop. This space charge drop is determined by the current ⁇ supplied through the rectifier to the output circuit of the rectifier.
  • the voltage of the cathode 4 should swing between something like 100 volts negative and 1100 volts positive with respect to the ground.
  • the cathode 4 is 100 volts negative with respect to ground, enough electrons pass from 5 the cathode 4 to the anode 5 to maintain the current between cathode 8 and anode 10 of the amplifier 1 during the entire 0 cle, keeping the filter condensers 16, 1; and 18 charged to an average of 500 volts. Since the grid bias system takes practically no current, the auxiliary anode 6 will become charged to the extreme negative potential reached by the cathode 4, or 100 volts negative in the case used for illustration. If smaller grid bias is desired, a leak to ground or a potentiometer may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Elimination Of Static Electricity (AREA)
  • Amplifiers (AREA)
US178475A 1927-03-25 1927-03-25 Electrical system Expired - Lifetime US1797985A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL25410D NL25410C (enrdf_load_html_response) 1927-03-25
US178475A US1797985A (en) 1927-03-25 1927-03-25 Electrical system
FR653260D FR653260A (fr) 1927-03-25 1928-03-22 Perfectionnements aux moyens d'alimenter un tube à trois électrodes par une source alternative
DEI33910D DE508897C (de) 1927-03-25 1928-03-23 Verstaerkerroehrenschaltung mit Entnahme der Anodenspannung aus dem Wechselstromnetz ueber einen Gleichrichter
FR37644D FR37644E (fr) 1927-03-25 1929-11-20 Perfectionnements aux moyens d'alimenter un tube à trois électrodes par une source alternative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US178475A US1797985A (en) 1927-03-25 1927-03-25 Electrical system

Publications (1)

Publication Number Publication Date
US1797985A true US1797985A (en) 1931-03-24

Family

ID=22652682

Family Applications (1)

Application Number Title Priority Date Filing Date
US178475A Expired - Lifetime US1797985A (en) 1927-03-25 1927-03-25 Electrical system

Country Status (4)

Country Link
US (1) US1797985A (enrdf_load_html_response)
DE (1) DE508897C (enrdf_load_html_response)
FR (2) FR653260A (enrdf_load_html_response)
NL (1) NL25410C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745671C (de) * 1935-04-25 1954-03-01 Elektrowerk G M B H Schaltungsanordnung fuer Filterketten zur Beruhigung hoher Gleichspannungen

Also Published As

Publication number Publication date
FR37644E (fr) 1930-01-08
NL25410C (enrdf_load_html_response)
DE508897C (de) 1930-10-15
FR653260A (fr) 1929-03-19

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