JPS5529735A - Temperature detection unit - Google Patents
Temperature detection unitInfo
- 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
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.
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)
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)
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 |
-
1978
- 1978-08-24 JP JP10232978A patent/JPS5529735A/en active Granted
Cited By (2)
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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