ATE54T1 - CIRCUIT FOR DISTINGUISHING HIGH AC OR DIRECT VOLTAGES. - Google Patents

CIRCUIT FOR DISTINGUISHING HIGH AC OR DIRECT VOLTAGES.

Info

Publication number
ATE54T1
ATE54T1 AT79103302T AT79103302T ATE54T1 AT E54 T1 ATE54 T1 AT E54T1 AT 79103302 T AT79103302 T AT 79103302T AT 79103302 T AT79103302 T AT 79103302T AT E54 T1 ATE54 T1 AT E54T1
Authority
AT
Austria
Prior art keywords
voltage
capacitor
diode
zener
resistance
Prior art date
Application number
AT79103302T
Other languages
German (de)
Inventor
Josef Baumann
Robert Meissl
Original Assignee
Schaltbau Gmbh
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 Schaltbau Gmbh filed Critical Schaltbau Gmbh
Application granted granted Critical
Publication of ATE54T1 publication Critical patent/ATE54T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/04—Voltage dividers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)

Abstract

1. A circuit for distinguishing between high direct or alternating voltage of different amplitudes whilst electrically isolating the evaluation device from the high voltage by means of an optocoupler, characterised in that the voltage is applied to a voltage divider the element closest to earth of which is a Zener diode (8) which is followed in the direction of the applied voltage by an ohmic resistance (5), a diode (7) which is connected to oppose the Zener diode, and one or several further ohmic resistances (3, 4), a capacitor (10) being connected in parallel with the Zener diode (8) and the next-following ohmic resistance (5) and that a capacitor (14) is charged with respect to earth (2) via a diode (12) from the voltage divider with a voltage which is higher than the Zener voltage, this capacitor (14) being connected in parallel with a series circuit consisting of the thyristor tetrode (11), the discharge resistance (15) and the light-emitting diode (16) of an opto-coupler (17), and that the anode of the thyristor tetrode (11) is connected via a bias resistance (9) to the Zener voltage and the photo transistor of the opto-coupler (17) switches a pulse sequence, which depends on the discharges of the capacitor (14), for the evaluation device.
AT79103302T 1978-10-02 1979-09-05 CIRCUIT FOR DISTINGUISHING HIGH AC OR DIRECT VOLTAGES. ATE54T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2842965A DE2842965C2 (en) 1978-10-02 1978-10-02 Circuit arrangement for the detection and transmission of voltage and frequency values on the high voltage side
EP79103302A EP0010151B1 (en) 1978-10-02 1979-09-05 Circuit for distinguishing between high direct or alternating voltages

Publications (1)

Publication Number Publication Date
ATE54T1 true ATE54T1 (en) 1981-05-15

Family

ID=6051187

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79103302T ATE54T1 (en) 1978-10-02 1979-09-05 CIRCUIT FOR DISTINGUISHING HIGH AC OR DIRECT VOLTAGES.

Country Status (4)

Country Link
EP (1) EP0010151B1 (en)
AT (1) ATE54T1 (en)
DE (1) DE2842965C2 (en)
YU (1) YU41665B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3141661A1 (en) * 1981-10-21 1983-05-05 Brown, Boveri & Cie Ag, 6800 Mannheim Device for monitoring circuits
DE19516092B4 (en) * 1995-05-03 2004-08-26 Robert Bosch Gmbh Hazard detection system with at least one shield line
IT1274533B (en) * 1995-05-19 1997-07-17 Dossena Ing Luigi & C S N C LINE VOLTAGE MEASURING DEVICE FOR RAILWAY VEHICLES
DE19727218C1 (en) * 1997-06-26 1999-03-11 Siemens Ag Discriminator circuit for distinguishing between high-voltage direct voltage and high-voltage alternating voltage
US6341493B1 (en) * 2000-07-19 2002-01-29 American Standard International Inc. HVAC control and method for interpreting broad range of input voltages
CN105236228A (en) * 2015-10-30 2016-01-13 林肯电梯(中国)有限公司 Detection module
CN111983298B (en) * 2020-08-24 2023-03-17 南京磐能电力科技股份有限公司 Switching value acquisition circuit and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393246A (en) * 1963-06-13 1965-03-26 Faiveley Sa Electronic heating control device for railway cars
DE1591972C3 (en) * 1967-01-21 1975-11-06 Philips Patentverwaltungs Gmbh, 2000 Hamburg Circuit for measuring currents at high potential
CH524826A (en) * 1970-05-25 1972-06-30 Zellweger Uster Ag Method and device for AC voltage control
DE2226666A1 (en) * 1972-05-31 1973-12-13 400 Kv Forschungsgemeinschaft ARRANGEMENT FOR VOLTAGE DETECTION ON A DEVICE ON HIGH VOLTAGE POTENTIAL
DE2348970C3 (en) * 1973-09-28 1981-02-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Input circuit for pulses
DE2501388B2 (en) * 1975-01-13 1980-05-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Multi-voltage selection device
DE2706130A1 (en) * 1977-02-14 1978-08-17 Schaltbau Gmbh Multi-potential electronic control for train heating - uses frequency and potential levels as digital signals for non-drift control
US4115830A (en) * 1977-04-01 1978-09-19 Applied Radiation Corporation Monitoring system for high-voltage supply

Also Published As

Publication number Publication date
YU236179A (en) 1982-06-30
YU41665B (en) 1987-12-31
DE2842965C2 (en) 1986-02-27
EP0010151B1 (en) 1981-04-29
EP0010151A1 (en) 1980-04-30
DE2842965A1 (en) 1980-04-17

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee