NO802312L - CONNECTOR FOR MONITORING AN INPUT VOLTAGE - Google Patents

CONNECTOR FOR MONITORING AN INPUT VOLTAGE

Info

Publication number
NO802312L
NO802312L NO802312A NO802312A NO802312L NO 802312 L NO802312 L NO 802312L NO 802312 A NO802312 A NO 802312A NO 802312 A NO802312 A NO 802312A NO 802312 L NO802312 L NO 802312L
Authority
NO
Norway
Prior art keywords
time
input voltage
duration
control circuit
rest position
Prior art date
Application number
NO802312A
Other languages
Norwegian (no)
Inventor
Heinrich Sailer
Torsten Vogeler
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 NO802312L publication Critical patent/NO802312L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Dc-Dc Converters (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Amplifiers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Toys (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

1. A circuit arrangement for monitoring an input voltage (UE), wherein an operating voltage (UB), which is buffered in an energy store (G), is produced from the input voltage (UE) for a control circuit (S) which is at least partly composed of digital switching circuits and wherein the input voltage (UE) is supplied to a sensor (F) to which a time element (Z1, Z2) is connected and which emits an alarm signal (M) if the input voltage (UE) is smaller than a predetermined threshold value (US), characterised in that the time element (Z1, Z2) is formed by a first time stage (Z1) and by a second time stage (Z2), that upon the pick-up of the alarm signal (M), the first time stage (Z1) emits a signal (S1) to the control circuit (S), which signal sets a rest position in the control circuit, in which rest position particularly little energy is required if the duration of the alarm signal (M) is greater than a predetermined first time duration (VI) and which rest position the control circuit (S1) itself leaves when said one signal (S1) has disappeared and continues the functions started before the setting into the rest position, and that the second time stage (Z2) switches off the operating voltage (UB) if the duration of the alarm signal (M) is greater than a predetermined second time duration (V2) which exceeds the first time duration (V1).
NO802312A 1979-08-02 1980-08-01 CONNECTOR FOR MONITORING AN INPUT VOLTAGE NO802312L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2931436A DE2931436C2 (en) 1979-08-02 1979-08-02 Circuit arrangement for monitoring an input voltage

Publications (1)

Publication Number Publication Date
NO802312L true NO802312L (en) 1981-02-03

Family

ID=6077495

Family Applications (1)

Application Number Title Priority Date Filing Date
NO802312A NO802312L (en) 1979-08-02 1980-08-01 CONNECTOR FOR MONITORING AN INPUT VOLTAGE

Country Status (9)

Country Link
EP (1) EP0023695B1 (en)
AT (1) ATE4265T1 (en)
DE (1) DE2931436C2 (en)
DK (1) DK332480A (en)
ES (1) ES8104695A1 (en)
FI (1) FI802424A (en)
NO (1) NO802312L (en)
PT (1) PT71643B (en)
YU (1) YU193880A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028236A1 (en) * 1980-07-25 1982-03-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt CIRCUIT ARRANGEMENT FOR DISCONNECTING A DATA CONNECTION
IT1211072B (en) * 1981-06-30 1989-09-29 Ates Componenti Elettron BRIDGE TRANSISTOR RECTIFIER CIRCUIT FOR TELEPHONE USE.
US4488006A (en) * 1982-07-01 1984-12-11 At&T Bell Laboratories Apparatus for controlling the application of telephone line power in a telephone set
KR970013827A (en) * 1995-08-23 1997-03-29 김광호 Malfunction prevention circuit of fixed device in radiotelephone

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536200C2 (en) * 1975-08-13 1983-04-21 Standard Elektrik Lorenz Ag, 7000 Stuttgart Circuit arrangement for monitoring a voice wire in telephone sets
FR2357122A1 (en) * 1976-07-02 1978-01-27 Picart Lebas Telephones Decimal keyboard dialling for telephone - uses MOS integrated circuits to perform pulse generation and coding operations
DE2813580A1 (en) * 1978-03-29 1979-10-04 Siemens Ag Subscriber stations with additional devices - have voltage monitoring circuit which disconnects devices when battery voltage drops below specified limit
DE2931456C2 (en) * 1979-08-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Parallel control circuit

Also Published As

Publication number Publication date
ES493897A0 (en) 1981-04-16
YU193880A (en) 1982-10-31
PT71643A (en) 1980-09-01
EP0023695A1 (en) 1981-02-11
EP0023695B1 (en) 1983-07-20
ATE4265T1 (en) 1983-08-15
FI802424A (en) 1981-02-03
DE2931436C2 (en) 1981-08-20
ES8104695A1 (en) 1981-04-16
PT71643B (en) 1981-06-26
DK332480A (en) 1981-02-03
DE2931436B1 (en) 1980-12-04

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