CH549313A - Eigensichere logische verknuepfungsschaltungsanordnung fuer gleichspannungssignale, insbesondere fuer eisenbahnsicherungsanlagen. - Google Patents

Eigensichere logische verknuepfungsschaltungsanordnung fuer gleichspannungssignale, insbesondere fuer eisenbahnsicherungsanlagen.

Info

Publication number
CH549313A
CH549313A CH1577971A CH1577971A CH549313A CH 549313 A CH549313 A CH 549313A CH 1577971 A CH1577971 A CH 1577971A CH 1577971 A CH1577971 A CH 1577971A CH 549313 A CH549313 A CH 549313A
Authority
CH
Switzerland
Prior art keywords
voltage signals
intrinsically safe
safety systems
wiring arrangement
railway safety
Prior art date
Application number
CH1577971A
Other languages
English (en)
Original Assignee
Int 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
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of CH549313A publication Critical patent/CH549313A/de

Links

Classifications

    • 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
    • H03K3/286Generators 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 bistable
    • H03K3/2893Bistables with hysteresis, e.g. Schmitt trigger
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/068Protection against eddy-currents, short-circuits, or the like, for electric safety arrangements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K19/00Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/007Fail-safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Emergency Protection Circuit Devices (AREA)
CH1577971A 1970-11-10 1971-10-29 Eigensichere logische verknuepfungsschaltungsanordnung fuer gleichspannungssignale, insbesondere fuer eisenbahnsicherungsanlagen. CH549313A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055262 DE2055262A1 (de) 1970-11-10 1970-11-10 Eigensichere logische Verknüpfungsschaltung für Gleichspannungssignale, insbesondere für Eisenbahnsicherungsanlagen

Publications (1)

Publication Number Publication Date
CH549313A true CH549313A (de) 1974-05-15

Family

ID=5787699

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1577971A CH549313A (de) 1970-11-10 1971-10-29 Eigensichere logische verknuepfungsschaltungsanordnung fuer gleichspannungssignale, insbesondere fuer eisenbahnsicherungsanlagen.

Country Status (2)

Country Link
CH (1) CH549313A (de)
DE (1) DE2055262A1 (de)

Also Published As

Publication number Publication date
DE2055262A1 (de) 1972-05-31

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Legal Events

Date Code Title Description
PL Patent ceased