JPS6489914A - Overcurrent protective circuit - Google Patents

Overcurrent protective circuit

Info

Publication number
JPS6489914A
JPS6489914A JP24553287A JP24553287A JPS6489914A JP S6489914 A JPS6489914 A JP S6489914A JP 24553287 A JP24553287 A JP 24553287A JP 24553287 A JP24553287 A JP 24553287A JP S6489914 A JPS6489914 A JP S6489914A
Authority
JP
Japan
Prior art keywords
normal temperature
temperature coefficient
resistance element
electronic switch
current
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
JP24553287A
Other languages
Japanese (ja)
Inventor
Mamoru Tateishi
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP24553287A priority Critical patent/JPS6489914A/en
Publication of JPS6489914A publication Critical patent/JPS6489914A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To obtain a high protective effect against various loads by binding thermally a normal temperature coefficient resistance element to an electronic circuit having a current limiting function. CONSTITUTION:An electronic switch circuit 3 having an overcurrent limiting function is usually turned on/off for the supply of electricity from power supply 1 to a load 2. A normal temperature coefficient resistance element 4 is thermally bound to an electronic switch 3. When overcurrent occurs due to failure and others, the electronic switch circuit 3 with quick response firstly limits the current. After that, the resistance value of the normal temperature coefficient resistance element 4 increases to limit the current.
JP24553287A 1987-09-29 1987-09-29 Overcurrent protective circuit Pending JPS6489914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24553287A JPS6489914A (en) 1987-09-29 1987-09-29 Overcurrent protective circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24553287A JPS6489914A (en) 1987-09-29 1987-09-29 Overcurrent protective circuit

Publications (1)

Publication Number Publication Date
JPS6489914A true JPS6489914A (en) 1989-04-05

Family

ID=17135094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24553287A Pending JPS6489914A (en) 1987-09-29 1987-09-29 Overcurrent protective circuit

Country Status (1)

Country Link
JP (1) JPS6489914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5381296A (en) * 1992-11-16 1995-01-10 Telefonaktiebolaget L M Ericsson Short circuit limiting protector
JP2011514797A (en) * 2008-02-25 2011-05-06 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Discharge circuit for high voltage power supply

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5381296A (en) * 1992-11-16 1995-01-10 Telefonaktiebolaget L M Ericsson Short circuit limiting protector
AU667608B2 (en) * 1992-11-16 1996-03-28 Emerson Energy Systems Ag A short-circuit limiting protector
JP2011514797A (en) * 2008-02-25 2011-05-06 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Discharge circuit for high voltage power supply

Similar Documents

Publication Publication Date Title
SE9203432L (en) limiter
ATE253780T1 (en) OVERCURRENT PROTECTION CIRCUIT
DE69739666D1 (en) PROTECTION CIRCUITS
GB9100283D0 (en) Overcurrent protection device
SE8803644L (en)
CA2201412A1 (en) Overtemperature protection circuit having plural thermal components
EP0245819A3 (en) Fast acting solid state ac circuit breaker
JPS6489914A (en) Overcurrent protective circuit
EP0330148A3 (en) Circuit breaker
EP0096834A3 (en) Protective circuit arrangement, especially for electrical devices
ATE350798T1 (en) PROTECTIVE CIRCUIT ARRANGEMENTS
KR890013865A (en) Switching power supply
FR2503954B1 (en)
JPS5513636A (en) Protection circuit for switched-mode power supply circuit
FR2465394B1 (en)
JPS6434174A (en) Power circuit
JPS55127619A (en) Temperature control circuit
JPS5778117A (en) Overheat preventing device for electronic parts
JPS5656173A (en) Stabilized switching power source circuit
JPS5410958A (en) Power source circuit
JPS5652418A (en) Heater control circuit
FR2273389A1 (en) Circuit breaker control network - has control circuit powered from the load circuit monitored
JPS56153810A (en) Electric circuit having temperature compensating function
JPS6460226A (en) Protective circuit for semiconductor element
IT1225486B (en) Electronic sorter which can be calibrated for the control of the supply of electrical loads, for protection from short circuits and accidental contact of a direct nature with power networks