JPS5710814A - Temperature control method - Google Patents

Temperature control method

Info

Publication number
JPS5710814A
JPS5710814A JP8629180A JP8629180A JPS5710814A JP S5710814 A JPS5710814 A JP S5710814A JP 8629180 A JP8629180 A JP 8629180A JP 8629180 A JP8629180 A JP 8629180A JP S5710814 A JPS5710814 A JP S5710814A
Authority
JP
Japan
Prior art keywords
saw
temperature
thyristors
heaters
controlled
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
JP8629180A
Other languages
Japanese (ja)
Inventor
Shigeru Tanaka
Hiroshi Hayashi
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.)
Shinko Electric Co Ltd
Original Assignee
Shinko Electric 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 Shinko Electric Co Ltd filed Critical Shinko Electric Co Ltd
Priority to JP8629180A priority Critical patent/JPS5710814A/en
Publication of JPS5710814A publication Critical patent/JPS5710814A/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
    • 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
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
    • G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means

Landscapes

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

Abstract

PURPOSE:To prevent generation of an instantaneous voltage drop and an induced noise, by electrifying a heater by a comparison signal of N pieces of saw tooth waves whose phase difference is made 2pi/N, and a set temperature, when an electrifying cylce of N pieces of heaters is decided, and a temperature control is executed. CONSTITUTION:Explanation is made as to an example in case of two heaters. An electrification period of the first and second heaters 1a, 1b is controlled by thyristors 2a, 2b, and a temperature of a common substance to be heated is controlled. To temperature controllers 6a, 6b are provided outputs of setting devices 4a, 4l and outputs of temperature sensors 5a, 5b, and a deviation is derived. Its deviation is provided to comparators 7a, 7b together with an output of a saw-tooth wave generating circuit 8, its compared output is sent to gate circuits 10a, 10b, and conduction of the thyristors 2a, 2b is controlled. As for a saw-tooth wave from the saw- tooth wave generating circuit 8, its phase is shifted by pi, therefore, the thyristors are not superposed on the ignition time point at the same time.
JP8629180A 1980-06-24 1980-06-24 Temperature control method Pending JPS5710814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8629180A JPS5710814A (en) 1980-06-24 1980-06-24 Temperature control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8629180A JPS5710814A (en) 1980-06-24 1980-06-24 Temperature control method

Publications (1)

Publication Number Publication Date
JPS5710814A true JPS5710814A (en) 1982-01-20

Family

ID=13882728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8629180A Pending JPS5710814A (en) 1980-06-24 1980-06-24 Temperature control method

Country Status (1)

Country Link
JP (1) JPS5710814A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252317A (en) * 1985-08-30 1987-03-07 Kyocera Corp Kerosene hot water
JPH01152494U (en) * 1988-04-13 1989-10-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252317A (en) * 1985-08-30 1987-03-07 Kyocera Corp Kerosene hot water
JPH01152494U (en) * 1988-04-13 1989-10-20

Similar Documents

Publication Publication Date Title
ES447269A1 (en) No-break ac power supply
SE8902633L (en) FOERDROEJNINGSELEMENT
SE7605476L (en) ACTIVITY CONTROL DEVICE
JPS5592587A (en) Synchronizing system for motor revolving at low speed
JPS5710814A (en) Temperature control method
GB2102991B (en) Reference pulse generator
JPS5570134A (en) Synchronous circuit
JPS56150977A (en) Voltage type inverter
JPS54141507A (en) Phase synchronism circuit
JPS57119686A (en) Control device for motor
FR2444970A1 (en) Thyristor operating in switching control mode - uses constant frequency oscillator to set pulse cycle time
NL7607460A (en) Electric motor control circuit including thyristors - has clock pulse generator and phase shifter to inject trigger pulses to sinusoidal motor control circuit
FR2332672A1 (en) Heating element control circuit - has temp. sensitive resistor in bridge whose output is added to sawtooth and to reference voltage
JPS557958A (en) Ignition system for internal combustion engine
SU631833A1 (en) Linear ac effective value-to-dc voltage converter
SU387346A1 (en) DEVICE FOR REGULATING TEMPERATURE
JPS5788870A (en) Digital phase controller
FR2356992A1 (en) Power regulator system for electric motor - has series triac controlled by triggering pulses of variable conduction angle and connected to AC supply (NL 3.1.78)
SU539368A2 (en) Parabolic Pulse Generator
JPS56137414A (en) Switching regulator
JPS5498168A (en) Thyrister controller
GB1432024A (en) Control circuits
SU617839A1 (en) Pulse delay system
SU843153A1 (en) Adaptive device for control of self-sustaned inverter
JPS554122A (en) Pulse generating circuit