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ZA835268B - Control units of the type having a d.c.-isolated signal output circuit - Google Patents

Control units of the type having a d.c.-isolated signal output circuit

Info

Publication number
ZA835268B
ZA835268B ZA835268A ZA835268A ZA835268B ZA 835268 B ZA835268 B ZA 835268B ZA 835268 A ZA835268 A ZA 835268A ZA 835268 A ZA835268 A ZA 835268A ZA 835268 B ZA835268 B ZA 835268B
Authority
ZA
South Africa
Prior art keywords
control system
type
optocouplers
signal output
output circuit
Prior art date
Application number
ZA835268A
Inventor
Wolfgang Eue
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA835268B publication Critical patent/ZA835268B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
    • H04B10/802—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections for isolation, e.g. using optocouplers
    • 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
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Conversion In General (AREA)
  • Dc-Dc Converters (AREA)
  • Electronic Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Analogue/Digital Conversion (AREA)
  • Electrotherapy Devices (AREA)
  • Massaging Devices (AREA)
  • Peptides Or Proteins (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

In such an arrangement, the signals should be fed from the outputs of the control system (D) concerned via optocouplers (01, 02, 03) to downstream processing devices only if the control system is operating correctly. At the same time, the optocouplers (01, 02, 03) are supplied with power via a converter (U) to which a characteristic signal is fed which indicates that the control system (D) is working correctly. Like the optocouplers (01, 02, 03) the converter (U) has an electrical separation between the control system (D) and the processing devices. Such devices are used in process computers in technical systems having high safety requirements, for example railway safety systems. <IMAGE>
ZA835268A 1982-07-21 1983-07-20 Control units of the type having a d.c.-isolated signal output circuit ZA835268B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823227290 DE3227290A1 (en) 1982-07-21 1982-07-21 DEVICE FOR POTENTIAL-SEPARATED SIGNAL OUTPUT AT A TAX PLANT

Publications (1)

Publication Number Publication Date
ZA835268B true ZA835268B (en) 1984-03-28

Family

ID=6168976

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA835268A ZA835268B (en) 1982-07-21 1983-07-20 Control units of the type having a d.c.-isolated signal output circuit

Country Status (4)

Country Link
EP (1) EP0101853B1 (en)
AT (1) ATE59241T1 (en)
DE (2) DE3227290A1 (en)
ZA (1) ZA835268B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK161227C (en) * 1986-01-27 1991-11-25 Antonson Security Denmark Aps DEVICE DETECTOR SYNCHRONIZER DEVICE
DE3942430A1 (en) * 1989-12-21 1991-09-19 Bosch Siemens Hausgeraete ELECTRIC HOUSEHOLD APPLIANCE OR THE LIKE
DE19626129C2 (en) * 1996-06-28 2000-03-02 Elan Schaltelemente Gmbh & Co Safety circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222922A5 (en) * 1973-03-22 1974-10-18 Otic Fischer & Porter Safety control system for explosive environments - using light waves to transmit control signals to hazardous area
CH594340A5 (en) * 1975-07-10 1978-01-13 Erni & Co Elektro Ind Arrangement to isolate potentially interfering circuits
FR2381075A1 (en) * 1977-02-18 1978-09-15 Lille Communaute Urbaine Microprocessor operated traffic lights control system - has memory with TTL command circuit with interchangeable cards defining sequences

Also Published As

Publication number Publication date
ATE59241T1 (en) 1991-01-15
EP0101853B1 (en) 1990-12-19
DE3227290A1 (en) 1984-01-26
EP0101853A3 (en) 1987-10-14
EP0101853A2 (en) 1984-03-07
DE3382067D1 (en) 1991-01-31

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