JPS56118114A - Temperature controller - Google Patents

Temperature controller

Info

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
Application number
JP2183880A
Other languages
Japanese (ja)
Inventor
Toshio Maruke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2183880A priority Critical patent/JPS56118114A/en
Publication of JPS56118114A publication Critical patent/JPS56118114A/en
Pending legal-status Critical Current

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.
JP2183880A 1980-02-22 1980-02-22 Temperature controller Pending JPS56118114A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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