JPS5731010A - Temperature control device - Google Patents
Temperature control deviceInfo
- Publication number
- JPS5731010A JPS5731010A JP10610380A JP10610380A JPS5731010A JP S5731010 A JPS5731010 A JP S5731010A JP 10610380 A JP10610380 A JP 10610380A JP 10610380 A JP10610380 A JP 10610380A JP S5731010 A JPS5731010 A JP S5731010A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- zero crossing
- period
- pulse
- generated
- 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
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
-
- 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
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE:To obtain a stable zero crossing pulse as a comparison output, by stopping the discharge of an integral network for obtaining the temperature signal voltage, in the period for generating a zero crossing pulse for comparing the temperature signal voltage and the temperature setting voltage. CONSTITUTION:A transistor TR24 of a discharge stopping circuit 25 is turned on through a resistance 26 when a zero crossing pulse Vz is not generated from a zero crossing pulse generating circuit 17. On the other hand, the pulse Vz is generated, and in the period for comparing the temperature setting voltage Vs and the temperature signal voltage VT, the TR24 turns off, and stops discharge of a capacitor 13 of an integral network 15. Accordingly, in this period, voltage of the voltage VT is not varied, and even when the voltages Vs and VT stand close to each other, a period of VT>Vs is not generated in the latter half of a square waveform, and a phase control of a power control element by an output of V0 of a comparing circuit 16 is not executed. In this way, the voltage VT and Vs are compared exactly, and a stable zero crossing trigger pulse is obtained as a comparison output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10610380A JPS5731010A (en) | 1980-07-31 | 1980-07-31 | Temperature control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10610380A JPS5731010A (en) | 1980-07-31 | 1980-07-31 | Temperature control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5731010A true JPS5731010A (en) | 1982-02-19 |
JPS6138492B2 JPS6138492B2 (en) | 1986-08-29 |
Family
ID=14425168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10610380A Granted JPS5731010A (en) | 1980-07-31 | 1980-07-31 | Temperature control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731010A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59231618A (en) * | 1983-06-15 | 1984-12-26 | Matsushita Electric Ind Co Ltd | Temperature controller |
US8395064B2 (en) | 2009-12-23 | 2013-03-12 | Ls Industrial Systems Co., Ltd. | Interlock apparatus of ground switch for vacuum circuit breaker |
-
1980
- 1980-07-31 JP JP10610380A patent/JPS5731010A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59231618A (en) * | 1983-06-15 | 1984-12-26 | Matsushita Electric Ind Co Ltd | Temperature controller |
JPH0527127B2 (en) * | 1983-06-15 | 1993-04-20 | Matsushita Electric Ind Co Ltd | |
US8395064B2 (en) | 2009-12-23 | 2013-03-12 | Ls Industrial Systems Co., Ltd. | Interlock apparatus of ground switch for vacuum circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
JPS6138492B2 (en) | 1986-08-29 |
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