GB786878A - Improvements in or relating to electrical control circuits employing a semi-conductor device - Google Patents

Improvements in or relating to electrical control circuits employing a semi-conductor device

Info

Publication number
GB786878A
GB786878A GB17303/55A GB1730355A GB786878A GB 786878 A GB786878 A GB 786878A GB 17303/55 A GB17303/55 A GB 17303/55A GB 1730355 A GB1730355 A GB 1730355A GB 786878 A GB786878 A GB 786878A
Authority
GB
United Kingdom
Prior art keywords
resistor
capacitor
current
lamp
base
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
GB17303/55A
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
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB786878A publication Critical patent/GB786878A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • E02D9/005—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof removing the top of placed piles of sheet piles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
    • 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
    • H03K3/35—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
    • 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
    • H03K3/35—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
    • H03K3/351—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region the devices being unijunction transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/83—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices with more than two PN junctions or with more than three electrodes or more than one electrode connected to the same conductivity region
    • H03K4/84—Generators in which the semiconductor device is conducting during the fly-back part of the cycle
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses

Abstract

786,878. Audible and visible, signalling apparatus. GENERAL ELECTRIC CO. June 15, 1955 [June 16, 1954], No. 17303/55. Class 118 (2). [Also in Group XL (c)] A capacitor 24, Fig. 3, is connected between the junction 18 and one of the base electrodes 14, a resistor 22 being connected between the junction and the other base 16 to generate a cyclically varying A.C. current or voltage to control a signalling apparatus. A filamentary lamp may be included in the base lead 14, Fig. 1 (not shown), and used as a warning light on vehicles and road signs and for intermittent illumination for display purposes. Alternatively, audible devices such as buzzers and electric bells may be operated. In a modification, Fig. 2, the lamp 20 is supplied with current through resistor 30, the discharge of capacitor 24 augmenting the current so that the lamp flashes. By including the resistor 22 in parallel with the non-linear back resistance of the diode 18, 16 the charging rate of the capacitor 24 is maintained more nearly constant with varying temperature. It is stated that a radio transmitter may also be controlled. Specification 786,876, (Group XL (c)], is referred to.
GB17303/55A 1954-06-16 1955-06-15 Improvements in or relating to electrical control circuits employing a semi-conductor device Expired GB786878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US437034A US2780752A (en) 1954-06-16 1954-06-16 Semi-conductor network

Publications (1)

Publication Number Publication Date
GB786878A true GB786878A (en) 1957-11-27

Family

ID=22286052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17303/55A Expired GB786878A (en) 1954-06-16 1955-06-15 Improvements in or relating to electrical control circuits employing a semi-conductor device

Country Status (3)

Country Link
US (1) US2780752A (en)
DE (1) DE1017207B (en)
GB (1) GB786878A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860260A (en) * 1956-09-27 1958-11-11 Sykes Langthorne Transistor integrator
US3021431A (en) * 1956-10-29 1962-02-13 Sperry Rand Corp Transistorized integrator circuit
US3129338A (en) * 1957-01-30 1964-04-14 Rauland Corp Uni-junction coaxial transistor and circuitry therefor
US2996685A (en) * 1958-01-31 1961-08-15 Baskin R Lawrence Electronic tone signal generators
US2994013A (en) * 1958-02-21 1961-07-25 Tung Sol Electric Inc Transistor circuit for intermittently energizing a load
US3046470A (en) * 1958-09-09 1962-07-24 Westinghouse Air Brake Co Transistor control circuits
US3045150A (en) * 1958-10-13 1962-07-17 Leach Corp Time delay circuit
US3026505A (en) * 1959-08-19 1962-03-20 Honeywell Regulator Co Unijunction transistor oscillator voltage monitoring circuit
US3026485A (en) * 1959-12-07 1962-03-20 Gen Electric Unijunction relaxation oscillator with transistor, in discharge circuit of charge capacitor, for coupling discharge to output circuit
US3118091A (en) * 1959-12-10 1964-01-14 Honeywell Regulator Co Control apparatus
US3047745A (en) * 1959-12-15 1962-07-31 Gen Electric Semiconductor time delay circuits utilizing the switching characteristics of unijunction transistors
US3173091A (en) * 1960-08-30 1965-03-09 Westinghouse Electric Corp Microwave detector apparatus
US3183705A (en) * 1961-07-06 1965-05-18 Gulton Ind Inc Temperature or pressure measuring apparatus
US3172663A (en) * 1961-08-21 1965-03-09 Maurice L Goldstein Timed pinsetter motor control and indicator light therefor
US3286100A (en) * 1962-09-21 1966-11-15 Bendix Corp Voltage integrator circuit
US3271700A (en) * 1963-03-01 1966-09-06 Gen Electric Solid state switching circuits
US3388293A (en) * 1965-05-20 1968-06-11 Fabri Tek Inc Indicator lamp in a transistor emitter follower circuit with a lamp warmup resistor in parallel with the transistor
US3464773A (en) * 1965-10-22 1969-09-02 Eastman Kodak Co Photometer apparatus employing matched circuits
US3366834A (en) * 1966-03-09 1968-01-30 King Radio Corp Brilliance control system for indicating lamps
DE1765454C3 (en) * 1968-05-21 1975-07-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement with a Hall generator connected to a pulse generator
US3627933A (en) * 1969-09-12 1971-12-14 Jim C Garrett Device for tracing a telephone switch train

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE490958A (en) * 1948-09-24
US2502488A (en) * 1948-09-24 1950-04-04 Bell Telephone Labor Inc Semiconductor amplifier
US2654059A (en) * 1951-05-26 1953-09-29 Bell Telephone Labor Inc Semiconductor signal translating device

Also Published As

Publication number Publication date
DE1017207B (en) 1957-10-10
US2780752A (en) 1957-02-05

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