JPS5455284A - Control circuit for temperature detecting - Google Patents
Control circuit for temperature detectingInfo
- Publication number
- JPS5455284A JPS5455284A JP12215777A JP12215777A JPS5455284A JP S5455284 A JPS5455284 A JP S5455284A JP 12215777 A JP12215777 A JP 12215777A JP 12215777 A JP12215777 A JP 12215777A JP S5455284 A JPS5455284 A JP S5455284A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- circuit
- resistor
- regulating
- sensing element
- 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
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Control Of Temperature (AREA)
Abstract
PURPOSE: To stablize the operation temp. of a high limit circuit, by means of detecting the temp. of a body to be controlled in temp. by a single detecting element, of allowing the temp. regulating circuit and the high limit circuit to be operated, and of varying the operation temp. of a temp. regulating circuit freely.
CONSTITUTION: A bridge circuit is formed by a resistor R1, a variable resistor Rv, a negative property temp. sensing element Th, and resistors R2, R3, and a NPN transistor TR is connected to the connection point of the resistor R1 and the variable resistor Rv, the emitter is connected to the connecting point of the variable resistor Rv and the temp. Sensing element Th, and the base is connected to the connected to the connection point of the resistors R2, R3. Said circuit is connected to a temp. regulating circuit Cr. And the output terminal of an operation amplifier OP1 is connected to a combustion device Ns. The output terminal of an operation amplifier OP2 of a high limit circuit CL is connected to a breaker Bs which allows the action of the whole circuit to be stopped. The values of the resistor R1WR7, the set resistor Rv, the temp. sensing element Th is regarded as r1Wr7, rv, rTh, r4, / r5<r5<r2/r3<r6/r7. When the temp. is low, it becomes to (r1+rv)/rTh<r2<r3, and the tran/istor is nonconductive, and when (r1+rv) rth<r4 <R5 is satisfed, the output of the amplifier OP1 of the regulating circit Cr is no present, and the combustion device Ns is actuated
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12215777A JPS5455284A (en) | 1977-10-07 | 1977-10-07 | Control circuit for temperature detecting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12215777A JPS5455284A (en) | 1977-10-07 | 1977-10-07 | Control circuit for temperature detecting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455284A true JPS5455284A (en) | 1979-05-02 |
Family
ID=14829001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12215777A Pending JPS5455284A (en) | 1977-10-07 | 1977-10-07 | Control circuit for temperature detecting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455284A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5854704U (en) * | 1981-10-09 | 1983-04-14 | 矢崎総業株式会社 | proportional control device |
-
1977
- 1977-10-07 JP JP12215777A patent/JPS5455284A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5854704U (en) * | 1981-10-09 | 1983-04-14 | 矢崎総業株式会社 | proportional control device |
JPS6319842Y2 (en) * | 1981-10-09 | 1988-06-02 |
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