JPS56118114A - Temperature controller - Google Patents
Temperature controllerInfo
- Publication number
- JPS56118114A JPS56118114A JP2183880A JP2183880A JPS56118114A JP S56118114 A JPS56118114 A JP S56118114A JP 2183880 A JP2183880 A JP 2183880A JP 2183880 A JP2183880 A JP 2183880A JP S56118114 A JPS56118114 A JP S56118114A
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- cooling load
- reference voltage
- temperature
- differential
- 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
-
- 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)
- Air Conditioning Control Device (AREA)
- Control Of Temperature (AREA)
Abstract
PURPOSE:To keep constant the average temperature even when the cooling load is changed and to reduce the power consumption, by discriminating the magnitude of cooling load through the rate of rise of input voltage in unit time, and automatically selecting the temperature differential. CONSTITUTION:If the cooling load is greater, since the temperature rise per unit time is great when the compressor 15 is off, the voltage increase of input voltage V- from a temperature sensing resistive element R1 is high, since it is higher than the reference voltage V+ of a comparator 1 after the set time t1 of a timer T1, on/off control is made with the differential of the comparator 1. If the cooling load is small, since the temperature rise per unit time is small, the input voltage V- is lower than the reference voltage V+ after the set time t1 of the timer T1 and the comparator 1 is in off state. On the other hand, since the reference voltage V'+ is lower than the reference voltage V+, on/off control is made with the comparator 2 with smaller differential.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2183880A JPS56118114A (en) | 1980-02-22 | 1980-02-22 | Temperature controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2183880A JPS56118114A (en) | 1980-02-22 | 1980-02-22 | Temperature controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56118114A true JPS56118114A (en) | 1981-09-17 |
Family
ID=12066211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2183880A Pending JPS56118114A (en) | 1980-02-22 | 1980-02-22 | Temperature controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56118114A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59158415A (en) * | 1983-02-17 | 1984-09-07 | フィスラー ゲーエムベーハー | Heat efficiency adjusting circuit for heating element |
JPS59143228U (en) * | 1983-03-16 | 1984-09-25 | 松下電器産業株式会社 | heat pump water heater |
JPS61193916A (en) * | 1985-02-21 | 1986-08-28 | Diesel Kiki Co Ltd | Air-conditioner for vehicle |
JPH01266609A (en) * | 1988-02-11 | 1989-10-24 | Friedhelm Meyer | Cut-in/cut-out temperature difference setting for cooler or heater |
JPH0264806A (en) * | 1988-08-31 | 1990-03-05 | Sanyo Electric Co Ltd | Temperature controller |
JP2008209029A (en) * | 2007-02-23 | 2008-09-11 | Mitsubishi Heavy Ind Ltd | Air conditioner and automatic heating operation control method |
JP2008256259A (en) * | 2007-04-04 | 2008-10-23 | Hoshizaki Electric Co Ltd | Cooling storage |
-
1980
- 1980-02-22 JP JP2183880A patent/JPS56118114A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59158415A (en) * | 1983-02-17 | 1984-09-07 | フィスラー ゲーエムベーハー | Heat efficiency adjusting circuit for heating element |
JPS59143228U (en) * | 1983-03-16 | 1984-09-25 | 松下電器産業株式会社 | heat pump water heater |
JPH038919Y2 (en) * | 1983-03-16 | 1991-03-06 | ||
JPS61193916A (en) * | 1985-02-21 | 1986-08-28 | Diesel Kiki Co Ltd | Air-conditioner for vehicle |
JPH01266609A (en) * | 1988-02-11 | 1989-10-24 | Friedhelm Meyer | Cut-in/cut-out temperature difference setting for cooler or heater |
JPH0264806A (en) * | 1988-08-31 | 1990-03-05 | Sanyo Electric Co Ltd | Temperature controller |
JP2008209029A (en) * | 2007-02-23 | 2008-09-11 | Mitsubishi Heavy Ind Ltd | Air conditioner and automatic heating operation control method |
JP2008256259A (en) * | 2007-04-04 | 2008-10-23 | Hoshizaki Electric Co Ltd | Cooling storage |
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