DE2149063B2 - Short-circuit protection has capacitor charged by shorts voltage spike - and opening thyristor switch on AC side of rectifier bridge - Google Patents

Short-circuit protection has capacitor charged by shorts voltage spike - and opening thyristor switch on AC side of rectifier bridge

Info

Publication number
DE2149063B2
DE2149063B2 DE19712149063 DE2149063A DE2149063B2 DE 2149063 B2 DE2149063 B2 DE 2149063B2 DE 19712149063 DE19712149063 DE 19712149063 DE 2149063 A DE2149063 A DE 2149063A DE 2149063 B2 DE2149063 B2 DE 2149063B2
Authority
DE
Germany
Prior art keywords
short
rectifier bridge
circuit protection
shorts
thyristor switch
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.)
Ceased
Application number
DE19712149063
Other languages
German (de)
Other versions
DE2149063A1 (en
Inventor
Walter Dr.-Ing. 7531 Tiefenbronn Klaschka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19712149063 priority Critical patent/DE2149063B2/en
Publication of DE2149063A1 publication Critical patent/DE2149063A1/en
Publication of DE2149063B2 publication Critical patent/DE2149063B2/en
Ceased 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
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • 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
    • H02H3/08—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 current
    • H02H3/087—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 current for dc applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Rectifiers (AREA)

Abstract

The short-circuit protection circuit protects d.c. supplies against overloads arising from short circuits on the load side of the rectifier bridge. A short circuit on the d.c. side of the bridg echarges a capacitor on the bridge's a.c. side. The capacitor discharges through a resistor and biasses on a transistor, which turns off the thyristor applying the a.c. to the rectifier bridge's input. The transistor overrides the voltage normally applied to the thyristor to keep the latter on so that during the next half-period the thyristor goes open circuit and thereby prevents the supply from being overloaded.
DE19712149063 1971-10-01 1971-10-01 Short-circuit protection has capacitor charged by shorts voltage spike - and opening thyristor switch on AC side of rectifier bridge Ceased DE2149063B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712149063 DE2149063B2 (en) 1971-10-01 1971-10-01 Short-circuit protection has capacitor charged by shorts voltage spike - and opening thyristor switch on AC side of rectifier bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712149063 DE2149063B2 (en) 1971-10-01 1971-10-01 Short-circuit protection has capacitor charged by shorts voltage spike - and opening thyristor switch on AC side of rectifier bridge

Publications (2)

Publication Number Publication Date
DE2149063A1 DE2149063A1 (en) 1973-04-05
DE2149063B2 true DE2149063B2 (en) 1975-04-10

Family

ID=5821191

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712149063 Ceased DE2149063B2 (en) 1971-10-01 1971-10-01 Short-circuit protection has capacitor charged by shorts voltage spike - and opening thyristor switch on AC side of rectifier bridge

Country Status (1)

Country Link
DE (1) DE2149063B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515655A1 (en) * 1975-04-10 1976-10-21 Walter Dipl Ing Dr In Klaschka Protection cct. prevents damage from reversed supply poles - using two diodes in pos. and neg. lines and third coupled to signal line
DE2545919A1 (en) * 1975-10-14 1977-04-21 Merten Kg Pulsotronic Two pole electronic AC voltage switchgear - has monitoring and current dependent resistors for short circuit voltage drop
DE3302864C1 (en) * 1983-01-28 1983-11-03 Euchner & Co, 7022 Leinfelden-Echterdingen Circuit arrangement for protecting a contactlessly controllable semiconductor switch
EP0166125A1 (en) * 1984-05-30 1986-01-02 i f m electronic gmbh Electronic switching device, preferably operating without making contact

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515654B2 (en) * 1975-04-10 1979-10-18 Klaschka, Walter, Dr.-Ing., 7531 Tiefenbronn Proximity switch
DE3446958A1 (en) * 1984-12-21 1986-07-10 Siemens AG, 1000 Berlin und 8000 München ARRANGEMENT FOR SHORT-CIRCUIT OVERLOAD MONITORING OF ELECTRONIC PROXIMITY SWITCHES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515655A1 (en) * 1975-04-10 1976-10-21 Walter Dipl Ing Dr In Klaschka Protection cct. prevents damage from reversed supply poles - using two diodes in pos. and neg. lines and third coupled to signal line
DE2545919A1 (en) * 1975-10-14 1977-04-21 Merten Kg Pulsotronic Two pole electronic AC voltage switchgear - has monitoring and current dependent resistors for short circuit voltage drop
DE3302864C1 (en) * 1983-01-28 1983-11-03 Euchner & Co, 7022 Leinfelden-Echterdingen Circuit arrangement for protecting a contactlessly controllable semiconductor switch
EP0166125A1 (en) * 1984-05-30 1986-01-02 i f m electronic gmbh Electronic switching device, preferably operating without making contact

Also Published As

Publication number Publication date
DE2149063A1 (en) 1973-04-05

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Legal Events

Date Code Title Description
OI Miscellaneous see part 1
8235 Patent refused