JPS5595120A - Temperature controller - Google Patents
Temperature controllerInfo
- Publication number
- JPS5595120A JPS5595120A JP183979A JP183979A JPS5595120A JP S5595120 A JPS5595120 A JP S5595120A JP 183979 A JP183979 A JP 183979A JP 183979 A JP183979 A JP 183979A JP S5595120 A JPS5595120 A JP S5595120A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heating resistor
- thyristor
- current
- heating
- 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
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Abstract
PURPOSE: To simplify structure and a circuit by automatically controlling a temperature through the heating and temperature sensing of one heating resistor with a large resistance temperature coefficient, by making use of the resistance temperature coefficient of the heating resistor.
CONSTITUTION: When the temperature of heating resistor 1 with a positive temperature coefficient is lower than a set temperature, the resistance value of heating resistor 1 is low and the balance of bridge circuit 5 is lost. As a result, a deviation output current is generated to let transistors 8 and 9 conduct. The collector current of transistor 9 is passed through gate trigger resistances 11 and 12 to obtain a gate trigger signal for thyristor 10, and consequently thyristor 10 is turned ON to supply a current to heating resistor 1, so that its temperature will rise. Once the temperature of heating resistor 1 rises, the resistance value also increases and the misbalance of bridge circuit 5 is recovering to reduce the deviation output current, so that the thyristor 10 will be cut off eventually. The temperature of heating resistor 1 is therefore held constant.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP183979A JPS5595120A (en) | 1979-01-09 | 1979-01-09 | Temperature controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP183979A JPS5595120A (en) | 1979-01-09 | 1979-01-09 | Temperature controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595120A true JPS5595120A (en) | 1980-07-19 |
Family
ID=11512718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP183979A Pending JPS5595120A (en) | 1979-01-09 | 1979-01-09 | Temperature controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595120A (en) |
-
1979
- 1979-01-09 JP JP183979A patent/JPS5595120A/en active Pending
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