JPS5474984A - Temperature control circuit - Google Patents
Temperature control circuitInfo
- Publication number
- JPS5474984A JPS5474984A JP14296377A JP14296377A JPS5474984A JP S5474984 A JPS5474984 A JP S5474984A JP 14296377 A JP14296377 A JP 14296377A JP 14296377 A JP14296377 A JP 14296377A JP S5474984 A JPS5474984 A JP S5474984A
- Authority
- JP
- Japan
- Prior art keywords
- thermister
- heater
- temperature
- transistors
- met
- 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
Abstract
PURPOSE: To raise the temperature of material to be insulated to the intended point as quickly as possible in a device such as electronic jars in which heat transfer is delayed from the heater frame equipped with a thermister.
CONSTITUTION: AC power source voltage rectified with a diode 3 is smoothed with a capacitor 4 while converted into a constant voltage with a constant voltage diode 5 to be a power source for a temperature setting circuit B. The relation between potential Va at a connection point of a thermister 6 and a resistance 7 and conduction voltages V214 and Va17 of transistors 14 and 17 is set at a given value. When the temperature of the thermister 6 rises to a set point, the transistors 14 and 17 conduct and the current flows to a gate electrode of the thyristor S through a resistance 15. Thus, a heater H is energized. When the requirement of Va>Va17 is met, the transistors 17 and 14 are turned off and the heater deenergized. When the requirement of Va14>Va>Va17 is met, as the temperature of the thermister 6 drops, the heater H is energized again.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14296377A JPS5474984A (en) | 1977-11-28 | 1977-11-28 | Temperature control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14296377A JPS5474984A (en) | 1977-11-28 | 1977-11-28 | Temperature control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5474984A true JPS5474984A (en) | 1979-06-15 |
JPS6118212B2 JPS6118212B2 (en) | 1986-05-12 |
Family
ID=15327724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14296377A Granted JPS5474984A (en) | 1977-11-28 | 1977-11-28 | Temperature control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5474984A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04169404A (en) * | 1990-10-30 | 1992-06-17 | Daifuku Co Ltd | Rotary type rack device |
JPH04179606A (en) * | 1990-11-08 | 1992-06-26 | Daifuku Co Ltd | Storage/discharge display for object receptacle table |
-
1977
- 1977-11-28 JP JP14296377A patent/JPS5474984A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6118212B2 (en) | 1986-05-12 |
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