JPS5797120A - Temperatue controller - Google Patents

Temperatue controller

Info

Publication number
JPS5797120A
JPS5797120A JP55173157A JP17315780A JPS5797120A JP S5797120 A JPS5797120 A JP S5797120A JP 55173157 A JP55173157 A JP 55173157A JP 17315780 A JP17315780 A JP 17315780A JP S5797120 A JPS5797120 A JP S5797120A
Authority
JP
Japan
Prior art keywords
output
motor
revolutions
voltage
frequency
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
JP55173157A
Other languages
Japanese (ja)
Inventor
Shoji Nagao
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 JP55173157A priority Critical patent/JPS5797120A/en
Publication of JPS5797120A publication Critical patent/JPS5797120A/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
    • G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)

Abstract

PURPOSE:To realize the stabilized number of revolutions with increase of the starting torque in a low speed and to reduce the noise, by changing the number of revolutions of a motor by an AND output between the signal supplied from a detector of the room temperature and an output of division of the frequency of a commercial power supply. CONSTITUTION:An AND is secured between an output obtained by dividing the frequency of a commercial power supply and an output of a temperature detecting means, and the number of revolutions is varied for an AC induced motor 22 for drive of a ventilating fan with the output of AND. For instance, a circuit shown in the diagram is used to give a 1/2 division to a shaped signal (b) of a half waveform of a commercial motor 21 through an FF37. At the same time, a voltage comparator 38 compares the comparing voltage which is decided by the resistance vlue of a temperature detector 41 with the reference voltage. Then the voltage of the divided frequency is applied by the output of an ANG gate consisting of diodes 46 and 47 when the room temperature is incrased and an output (d) of the comparator 38 is set at a high level. Thus the motor 22 is turned in a low speed.
JP55173157A 1980-12-10 1980-12-10 Temperatue controller Pending JPS5797120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55173157A JPS5797120A (en) 1980-12-10 1980-12-10 Temperatue controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55173157A JPS5797120A (en) 1980-12-10 1980-12-10 Temperatue controller

Publications (1)

Publication Number Publication Date
JPS5797120A true JPS5797120A (en) 1982-06-16

Family

ID=15955152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55173157A Pending JPS5797120A (en) 1980-12-10 1980-12-10 Temperatue controller

Country Status (1)

Country Link
JP (1) JPS5797120A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5032425A (en) * 1973-07-28 1975-03-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5032425A (en) * 1973-07-28 1975-03-29

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