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GB728740A - Improvements in or relating to trigger circuits - Google Patents

Improvements in or relating to trigger circuits

Info

Publication number
GB728740A
GB728740A GB25562/51A GB2556251A GB728740A GB 728740 A GB728740 A GB 728740A GB 25562/51 A GB25562/51 A GB 25562/51A GB 2556251 A GB2556251 A GB 2556251A GB 728740 A GB728740 A GB 728740A
Authority
GB
United Kingdom
Prior art keywords
resistance
diode
effected
condition
stable state
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
GB25562/51A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB728740A publication Critical patent/GB728740A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/313—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of semiconductor devices with two electrodes, one or two potential barriers, and exhibiting a negative resistance characteristic

Landscapes

  • Electronic Switches (AREA)
  • X-Ray Techniques (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

728,740. Multi-stable state circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 1, 1951 [Dec. 7, 1950], No. 25562/51. Class 40 (6). A two stable state trigger circuit comprises a crystal diode having a positive resistance value in one stable state and a negative resistance value in the other, and an electron discharge device in series with the diode, switching being effected by application of a pulse to a control electrode of the discharge device. In Fig. 1, a germanium or silicon semi-conductor block 13 having a base electrode 18 and whisker electrode 19 has a voltage/current characteristic as shown in Fig. 2 having portions of positive and of negative resistance. A voltage from source 10 is applied across diode 13 in series with resistance 14, and the position of the load line corresponding to resistance 14 in Fig. 2 shows that the arrangement has two positions of stability indicated at OFF and ON. When the circuit is in the small current, OFF condition, triggering is effected by applying a negative pulse from source 15 to the junction of the diode and the resistance, so that the circuit jumps to the high current ON position, where there is a small potential across the diode and a larger potential across the resistance. Triggering from the ON condition to the OFF condition is effected by applying a positive pulse from source 15. According to the invention (Fig. 4) resistance 14 is replaced by a valve 22, the trigger pulses being applied to the grid of the valve.
GB25562/51A 1950-12-07 1951-11-01 Improvements in or relating to trigger circuits Expired GB728740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US199687A US2647995A (en) 1950-12-07 1950-12-07 Trigger circuit

Publications (1)

Publication Number Publication Date
GB728740A true GB728740A (en) 1955-04-27

Family

ID=22738591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25562/51A Expired GB728740A (en) 1950-12-07 1951-11-01 Improvements in or relating to trigger circuits

Country Status (4)

Country Link
US (1) US2647995A (en)
DE (1) DE976079C (en)
FR (1) FR1061701A (en)
GB (1) GB728740A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810072A (en) * 1951-08-04 1957-10-15 Joseph Greenspan Multistable networks
BE521979A (en) * 1952-03-10
US2871377A (en) * 1954-07-29 1959-01-27 Gen Electric Bistable semiconductor devices
US2879409A (en) * 1954-09-09 1959-03-24 Arthur W Holt Diode amplifier
US2892979A (en) * 1955-02-15 1959-06-30 Burroughs Corp Diode amplifier
US2825820A (en) * 1955-05-03 1958-03-04 Sperry Rand Corp Enhancement amplifier
FR1188498A (en) * 1956-08-07 1959-09-23 Ibm Semiconductor device enhancements
US2975377A (en) * 1956-08-07 1961-03-14 Ibm Two-terminal semiconductor high frequency oscillator
US2941094A (en) * 1956-12-20 1960-06-14 Abraham George Electrical amplifying circuit
US3071698A (en) * 1958-09-17 1963-01-01 Westinghouse Electric Corp Rapid discharging of charged capactior through triggered hyperconductive (four-layer) diode in computer circuit
NL248703A (en) * 1959-02-24
US3115584A (en) * 1960-12-27 1963-12-24 Rca Corp Self-resetting negative resistance diode inverter circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504627A (en) * 1946-03-01 1950-04-18 Purdue Research Foundation Electrical device with germanium alloys
NL147713B (en) * 1948-07-23 Laing & Son Ltd John METHOD FOR PREPARING A PLASTIC MORTAR.
US2531076A (en) * 1949-10-22 1950-11-21 Rca Corp Bistable semiconductor multivibrator circuit

Also Published As

Publication number Publication date
DE976079C (en) 1963-02-14
FR1061701A (en) 1954-04-14
US2647995A (en) 1953-08-04

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