JPS54134280A - Temperature control device - Google Patents
Temperature control deviceInfo
- Publication number
- JPS54134280A JPS54134280A JP4229678A JP4229678A JPS54134280A JP S54134280 A JPS54134280 A JP S54134280A JP 4229678 A JP4229678 A JP 4229678A JP 4229678 A JP4229678 A JP 4229678A JP S54134280 A JPS54134280 A JP S54134280A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- triode
- switch
- thyristor
- cycle
- 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
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE: To prevent an erroneous operation of a temperature control device due to disturbance noise by setting a heat sensitive thyristor at the same potential as one terminal of an AC power supply and triggering always in next positive half-cycle when a triode AC switch triggers in negative half-cycle.
CONSTITUTION: Since a heat sensitive thyristor 4 is OFF during negative half-cycle of an AC power supply 1 when the temperature of an article to be heated is lower than predetermined temperature, the phase of the power voltage is lead. When the voltage is raised higher than the zener voltage of a zener diode 5, a current is flown through the gate of an auxiliary thyristor 6 via the power supply 1 - resistor 21 - zener diode 5 to cause the auxiliary thyristor to become ON. A gate current will flow through a triode AC switch 3 in a loop of the power supply 1 - heater 2 - the terminal T1 of triode AC switch 3 - resistor 15 - auxiliary thyristor 6 - AC power supply 1 to allow the triode AC switch 3 to become ON to thereby supply power to the heater 2.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4229678A JPS54134280A (en) | 1978-04-10 | 1978-04-10 | Temperature control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4229678A JPS54134280A (en) | 1978-04-10 | 1978-04-10 | Temperature control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54134280A true JPS54134280A (en) | 1979-10-18 |
JPS627565B2 JPS627565B2 (en) | 1987-02-18 |
Family
ID=12632065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4229678A Granted JPS54134280A (en) | 1978-04-10 | 1978-04-10 | Temperature control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54134280A (en) |
-
1978
- 1978-04-10 JP JP4229678A patent/JPS54134280A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS627565B2 (en) | 1987-02-18 |
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