NO131911B - - Google Patents

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Publication number
NO131911B
NO131911B NO389573A NO389573A NO131911B NO 131911 B NO131911 B NO 131911B NO 389573 A NO389573 A NO 389573A NO 389573 A NO389573 A NO 389573A NO 131911 B NO131911 B NO 131911B
Authority
NO
Norway
Prior art keywords
transistor
integrator
resistor
output
generator
Prior art date
Application number
NO389573A
Other languages
English (en)
Norwegian (no)
Other versions
NO131911C (xx
Inventor
G I Falk
A E Sandlin
O Steen
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO131911B publication Critical patent/NO131911B/no
Publication of NO131911C publication Critical patent/NO131911C/no

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02Monitoring continuously signalling or alarm systems
    • G08B29/06Monitoring of the line circuits, e.g. signalling of line faults
    • 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
    • H03K3/2826Generators 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 transistors of the complementary type
    • H03K3/2828Generators 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 transistors of the complementary type in an asymmetrical circuit configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Emergency Alarm Devices (AREA)
  • Manipulation Of Pulses (AREA)
  • Amplifiers (AREA)
NO389573A 1972-10-09 1973-10-08 NO131911C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1300572 1972-10-09

Publications (2)

Publication Number Publication Date
NO131911B true NO131911B (xx) 1975-05-12
NO131911C NO131911C (xx) 1975-08-20

Family

ID=20296667

Family Applications (1)

Application Number Title Priority Date Filing Date
NO389573A NO131911C (xx) 1972-10-09 1973-10-08

Country Status (3)

Country Link
CH (1) CH567838A5 (xx)
DE (1) DE2351103B2 (xx)
NO (1) NO131911C (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066879A1 (de) * 1981-06-05 1982-12-15 Hekatron GmbH Schaltungsanordnung zur Übertragung von Messwerten, insbesondere in einem Brandmeldesystem zu einer Zentrale
DE3122474A1 (de) * 1981-06-05 1982-12-23 Hekatron GmbH, 7811 Sulzburg "schaltungsanordnung zur uebertragung von messwerten, insbesondere in einem brandmeldesystem, zu einer zentrale"

Also Published As

Publication number Publication date
DE2351103A1 (de) 1974-04-25
DE2351103B2 (de) 1976-10-21
NO131911C (xx) 1975-08-20
CH567838A5 (xx) 1975-10-15

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