JPS5529735A - Temperature detection unit - Google Patents

Temperature detection unit

Info

Publication number
JPS5529735A
JPS5529735A JP10232978A JP10232978A JPS5529735A JP S5529735 A JPS5529735 A JP S5529735A JP 10232978 A JP10232978 A JP 10232978A JP 10232978 A JP10232978 A JP 10232978A JP S5529735 A JPS5529735 A JP S5529735A
Authority
JP
Japan
Prior art keywords
circuit
transistor
detection
detection part
constituted
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.)
Granted
Application number
JP10232978A
Other languages
Japanese (ja)
Other versions
JPS6311610B2 (en
Inventor
Yukio Yamauchi
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.)
Hochiki Corp
Original Assignee
Hochiki 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 Hochiki Corp filed Critical Hochiki Corp
Priority to JP10232978A priority Critical patent/JPS5529735A/en
Priority to DE2933874A priority patent/DE2933874C2/en
Priority to AU50213/79A priority patent/AU529099B2/en
Priority to GB7929366A priority patent/GB2029585B/en
Priority to US06/069,405 priority patent/US4331888A/en
Priority to FR7921405A priority patent/FR2434376A1/en
Priority to CH773379A priority patent/CH643948A5/en
Publication of JPS5529735A publication Critical patent/JPS5529735A/en
Publication of JPS6311610B2 publication Critical patent/JPS6311610B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To simplify a circuit constitution by using a transistor as detection element in the temperature detection unit equipped with an abnormal temperature rise detection function. CONSTITUTION:Detection part 1 is constituted by two transistors Tr1 and Tr2 which have approximately equal electric characteristics and different thermal time constants and resistances R1 to Rn. Then, transistor Tr2 is used as a diode (diode connection) due to short-circuit across the collector and the base if detection part 1 is so constituted that the thermal time constant of transistor Tr2 may be larger than that of transistor Tr1, so that an amplifier circuit, a reference voltage generation circuit and a differentiating circuit can be omitted by amplifying the temperature change of the forward voltage by the transistor itself. Comparator circuit 5 detects the difference between outputs V1 and V2 of detection part 1 which are generated at a rapid temperature rise time and drives switching circuit 6, thereby operating alarm equipment 7.
JP10232978A 1978-08-24 1978-08-24 Temperature detection unit Granted JPS5529735A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP10232978A JPS5529735A (en) 1978-08-24 1978-08-24 Temperature detection unit
DE2933874A DE2933874C2 (en) 1978-08-24 1979-08-21 Sensing device for sensing temperature differences between two points
AU50213/79A AU529099B2 (en) 1978-08-24 1979-08-23 Temperature detecting device
GB7929366A GB2029585B (en) 1978-08-24 1979-08-23 Temperature detecting apparatus
US06/069,405 US4331888A (en) 1978-08-24 1979-08-24 Temperature detecting apparatus
FR7921405A FR2434376A1 (en) 1978-08-24 1979-08-24 SEMICONDUCTOR TEMPERATURE SENSING APPARATUS, IN PARTICULAR FOR FIRE DETECTION
CH773379A CH643948A5 (en) 1978-08-24 1979-08-24 On temperaturaenderungen appealing device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10232978A JPS5529735A (en) 1978-08-24 1978-08-24 Temperature detection unit

Publications (2)

Publication Number Publication Date
JPS5529735A true JPS5529735A (en) 1980-03-03
JPS6311610B2 JPS6311610B2 (en) 1988-03-15

Family

ID=14324487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10232978A Granted JPS5529735A (en) 1978-08-24 1978-08-24 Temperature detection unit

Country Status (1)

Country Link
JP (1) JPS5529735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118127A (en) * 1981-01-13 1982-07-22 Toshiba Corp Temperature characteristic circuit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0524023Y2 (en) * 1988-09-13 1993-06-18
KR102193788B1 (en) 2018-12-31 2020-12-21 주식회사 프릭사 Brake friction material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118127A (en) * 1981-01-13 1982-07-22 Toshiba Corp Temperature characteristic circuit
JPH0132932B2 (en) * 1981-01-13 1989-07-11 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS6311610B2 (en) 1988-03-15

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