CH396089A - Einrichtung zur Erzeugung von Wechselspannungsimpulsen - Google Patents

Einrichtung zur Erzeugung von Wechselspannungsimpulsen

Info

Publication number
CH396089A
CH396089A CH330761A CH330761A CH396089A CH 396089 A CH396089 A CH 396089A CH 330761 A CH330761 A CH 330761A CH 330761 A CH330761 A CH 330761A CH 396089 A CH396089 A CH 396089A
Authority
CH
Switzerland
Prior art keywords
alternating voltage
voltage pulses
generating alternating
generating
pulses
Prior art date
Application number
CH330761A
Other languages
English (en)
Inventor
Eklov David
Original Assignee
Svenska Relafabriken A B N Akt
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 Svenska Relafabriken A B N Akt filed Critical Svenska Relafabriken A B N Akt
Publication of CH396089A publication Critical patent/CH396089A/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26Generators 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
    • H03K3/28Generators 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 using means other than a transformer for feedback
    • H03K3/281Generators 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 using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282Generators 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 using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2823Generators 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 using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistor of the same conductivity type
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/78Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Manipulation Of Pulses (AREA)
CH330761A 1960-04-02 1961-03-20 Einrichtung zur Erzeugung von Wechselspannungsimpulsen CH396089A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE327660 1960-04-02

Publications (1)

Publication Number Publication Date
CH396089A true CH396089A (de) 1965-07-31

Family

ID=20261760

Family Applications (1)

Application Number Title Priority Date Filing Date
CH330761A CH396089A (de) 1960-04-02 1961-03-20 Einrichtung zur Erzeugung von Wechselspannungsimpulsen

Country Status (4)

Country Link
CH (1) CH396089A (de)
DK (1) DK107878C (de)
GB (1) GB899570A (de)
NL (1) NL263062A (de)

Also Published As

Publication number Publication date
DK107878C (da) 1967-07-17
NL263062A (de)
GB899570A (en) 1962-06-27

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