[go: up one dir, main page]

JPS5725012A - Overvoltage detecting circuit - Google Patents

Overvoltage detecting circuit

Info

Publication number
JPS5725012A
JPS5725012A JP10036380A JP10036380A JPS5725012A JP S5725012 A JPS5725012 A JP S5725012A JP 10036380 A JP10036380 A JP 10036380A JP 10036380 A JP10036380 A JP 10036380A JP S5725012 A JPS5725012 A JP S5725012A
Authority
JP
Japan
Prior art keywords
voltage
detecting circuit
resistances
divided
resistance
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP10036380A
Other languages
Japanese (ja)
Inventor
Sadao Okochi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10036380A priority Critical patent/JPS5725012A/en
Publication of JPS5725012A publication Critical patent/JPS5725012A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
    • H02H3/202—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage for DC systems

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To execute an operation confirming work for a detecting circuit easily and swiftly, by providing a voltage detecting circuit for receiving the voltage which has been divided by a resistance voltge dividing circuit, and an overvoltage control thyristor which is triggered by the voltage detecting circuit. CONSTITUTION:When test terminals P1, P2 are short-circuited, output voltage V0 of a fixed output voltage adjusting device 1 is divided by a resistance R10 and R12, and voltage of R12XV0/(R10+R12) is applied to the resistance R12. By this voltage value, a voltage dividing ratio of the resistances R10, R12 is determined so that a voltage trigger element CR3 breaks down and turns on. Also, the interterminals P1, P2 are released, regulator output voltage V0 is divided by resistances R10-R12, and the resistances R11 is determined so that turn-on caused by breaking down does not occur when voltge is applied to the voltage trigger element CR3. In this way, an operation confirming work for a detecting circuit is executed easily and swiftly.
JP10036380A 1980-07-22 1980-07-22 Overvoltage detecting circuit Pending JPS5725012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10036380A JPS5725012A (en) 1980-07-22 1980-07-22 Overvoltage detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10036380A JPS5725012A (en) 1980-07-22 1980-07-22 Overvoltage detecting circuit

Publications (1)

Publication Number Publication Date
JPS5725012A true JPS5725012A (en) 1982-02-09

Family

ID=14271983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10036380A Pending JPS5725012A (en) 1980-07-22 1980-07-22 Overvoltage detecting circuit

Country Status (1)

Country Link
JP (1) JPS5725012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2117094A3 (en) * 2008-04-11 2014-01-08 Eaton Industries GmbH Monitoring switch and method for checking the switch
JP2020101526A (en) * 2018-11-26 2020-07-02 ピルツ ゲーエムベーハー アンド コー．カーゲー Voltage monitoring device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2117094A3 (en) * 2008-04-11 2014-01-08 Eaton Industries GmbH Monitoring switch and method for checking the switch
JP2020101526A (en) * 2018-11-26 2020-07-02 ピルツ ゲーエムベーハー アンド コー．カーゲー Voltage monitoring device and method
US11005360B2 (en) 2018-11-26 2021-05-11 Pilz Gmbh & Co. Kg Apparatus and method for monitoring a safety function of a machine or technical installation

Similar Documents

Publication Publication Date Title
SE305849B (en)
JPS5869422A (en) Overcurrent protecting device
US3371254A (en) Safety control system
JPS5725012A (en) Overvoltage detecting circuit
ATE150910T1 (en) PROTECTIVE DEVICE FOR CIRCUIT
EP0373713A3 (en) Semiconductor circuit having an excess voltage protection circuit
GB1512073A (en) Protective systems for switches
UST957008I4 (en) Switching circuit with accurate current threshold
JPS5714218A (en) Direct-current two-wire proximity switch
JPS56123781A (en) Electric power control device
SU392479A1 (en)
JPS5723318A (en) Comparator using programable unijunction transistor
GB905188A (en) Mains-fed circuit arrangement including a half-wave semi-conductor rectifier device
JPS5776618A (en) Switching regulator
FR2377089A1 (en) AC circuit breaker test unit - has auxiliary voltage source coupled to FET control device
JPS5728265A (en) Current detecting circuit employing silicon bidirectional switching element
JPS5776601A (en) Monitoring circuit for electric power break
JPS5627530A (en) Contactless inductive load driver
JPS56135218A (en) Output overvoltage protecting circuit of direct-current regulated power source
JPS5656172A (en) Switching regulator circuit
ES8202511A1 (en) Control device for electric vehicle (Machine-translation by Google Translate, not legally binding)
JPS56116327A (en) Protection circuit for power transistor
JPS5583463A (en) Power supply
JPS5784622A (en) Alternating current two-wire type contactless switch
JPS51117585A (en) Semiconductor equipment