JPS5720818A - Exothermic temperature control device of resistance heating element - Google Patents
Exothermic temperature control device of resistance heating elementInfo
- Publication number
- JPS5720818A JPS5720818A JP9640280A JP9640280A JPS5720818A JP S5720818 A JPS5720818 A JP S5720818A JP 9640280 A JP9640280 A JP 9640280A JP 9640280 A JP9640280 A JP 9640280A JP S5720818 A JPS5720818 A JP S5720818A
- Authority
- JP
- Japan
- Prior art keywords
- exothermic temperature
- turned
- heating element
- resistance heating
- resistance
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
- G05D23/2401—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor using a heating element as a sensing element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Abstract
PURPOSE:To ensure a quick adaptation to a fluctuation of the exothermic temperature, by controlling a power source for electric conduction based on the exothermic temperature of a resistance heating element and a change of resistance value to the exothermic temperature. CONSTITUTION:When a switch (SW)15 is first turned on, a transistor (TR)16 is turned on. As a result, a semiconductor SW12 is also turned on, and accordingly a resistance heating element 13 generates the heat with the current supplied from a power supply terminal 11. If a certain voltage is applied to the terminal 11, the terminal voltage of a resistance 14 is reduced as the resistance value of the element 13 increases. This terminal voltage is compared 18 with the reference voltage, and the output potential of the comparator 18 is reduced when the difference between the exothermic temperature and the target value becomes a prescribed level due to the fact that the exothermic temperature of the element 13 exceeds the target level. As a result, the TR16 is turned off and accordingly the SW12 is also turned off to stop the electric conduction to the element 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9640280A JPS5720818A (en) | 1980-07-14 | 1980-07-14 | Exothermic temperature control device of resistance heating element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9640280A JPS5720818A (en) | 1980-07-14 | 1980-07-14 | Exothermic temperature control device of resistance heating element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5720818A true JPS5720818A (en) | 1982-02-03 |
Family
ID=14163961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9640280A Pending JPS5720818A (en) | 1980-07-14 | 1980-07-14 | Exothermic temperature control device of resistance heating element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5720818A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6048518A (en) * | 1983-08-25 | 1985-03-16 | Hitachi Ltd | Heater temperature control circuit for air fuel ratio sensor |
JPS60199449A (en) * | 1984-03-26 | 1985-10-08 | 工業技術院長 | Erection type wheelchair |
WO2000036877A1 (en) * | 1998-12-14 | 2000-06-22 | Tokyo Electron Limited | Method and apparatus for temperature control of heater |
-
1980
- 1980-07-14 JP JP9640280A patent/JPS5720818A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6048518A (en) * | 1983-08-25 | 1985-03-16 | Hitachi Ltd | Heater temperature control circuit for air fuel ratio sensor |
JPS60199449A (en) * | 1984-03-26 | 1985-10-08 | 工業技術院長 | Erection type wheelchair |
WO2000036877A1 (en) * | 1998-12-14 | 2000-06-22 | Tokyo Electron Limited | Method and apparatus for temperature control of heater |
US6627859B1 (en) | 1998-12-14 | 2003-09-30 | Tokyo Electron Limited | Method and apparatus for temperature control of heater |
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