FR89952E - Electronic telegraph relay - Google Patents

Electronic telegraph relay

Info

Publication number
FR89952E
FR89952E FR7888A FR7888A FR89952E FR 89952 E FR89952 E FR 89952E FR 7888 A FR7888 A FR 7888A FR 7888 A FR7888 A FR 7888A FR 89952 E FR89952 E FR 89952E
Authority
FR
France
Prior art keywords
input
oscillations
oscillator
circuit
pulse
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
FR7888A
Other languages
French (fr)
Inventor
Terje Thauland
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 Standard Electric Corp
Original Assignee
International Standard Electric 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
Priority claimed from NO15226964A external-priority patent/NO117596B/no
Priority claimed from DEST22574A external-priority patent/DE1219070B/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR7888A priority Critical patent/FR89952E/en
Application granted granted Critical
Publication of FR89952E publication Critical patent/FR89952E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/601—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors using transformer coupling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/665—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only
    • H03K17/666—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only the output circuit comprising more than one controlled bipolar transistor
    • H03K17/667—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only the output circuit comprising more than one controlled bipolar transistor using complementary bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/22—Repeaters for converting two wires to four wires; Repeaters for converting single current to double current
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Relay Circuits (AREA)

Abstract

1,100,620. Transistor switching circuits. CREED & CO. Ltd. 20 Aug., 1965 [22 Aug., 1964], No. 35917/65. Heading H3T. In an electric pulse relay circuit when the amplitude of the input a exceeds a predetermined level stage 1 is caused to oscillate and when the amplitude of these output oscillations b reach a given value a monostable stage 2, which produces a pulse at c of longer duration than the period of the oscillator, is triggered to control a keying stage 3 arranged to supply D.C. to a load, such as a transistor T3 controlling the connection between telegraph wires 12, 13 for producing a pulse output at d. For an input telegraph signal a (Fig. 3, not shown), as long as the oscillations at b remain above the triggering value for the monostable circuit, pulses at c will continue to be produced until the end of the input signal. The input voltage at which T1 starts oscillating may be varied by resistor R2. A voltage dependent resistor R1 protects the oscillator 1 from overloading and diodes D1, D3 provide bias for transistors T2, T3. In a modified circuit (Fig. 2, not shown) an input signal a causes T1 to oscillate and trigger the monostable stage 2 which then starts to produce an output pulse c. The windings of a common coupling transformer are arranged so that the oscillations of the oscillator 1 are stopped until the end of the output pulse c at (t 4 , Fig. 3, not shown), when oscillations may start again to repeat the above operation. By suitable arrangement of the transformer windings the monostable circuit may either be triggered on the leading or trailing edge of the oscillator pulses. Two relay circuits may be arranged having their input connected in parallel (Fig. 4, not shown), so that input signals of opposite polarity operate one or the other circuit to switch a different pair of telegraph lines for double current working.
FR7888A 1962-12-14 1965-03-04 Electronic telegraph relay Expired FR89952E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7888A FR89952E (en) 1962-12-14 1965-03-04 Electronic telegraph relay

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
BE42196 1962-12-14
NL292448 1963-05-07
NO15226964A NO117596B (en) 1964-03-04 1964-03-04
DEST22574A DE1219070B (en) 1964-03-04 1964-08-22 Circuit arrangement for the electronic simulation of a telegraph relay
FR7888A FR89952E (en) 1962-12-14 1965-03-04 Electronic telegraph relay
DE1965ST024200 DE1233006C2 (en) 1964-03-04 1965-07-30 Electronic telegraph relay for either single or double current operation

Publications (1)

Publication Number Publication Date
FR89952E true FR89952E (en) 1967-09-22

Family

ID=52823940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7888A Expired FR89952E (en) 1962-12-14 1965-03-04 Electronic telegraph relay

Country Status (1)

Country Link
FR (1) FR89952E (en)

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