JPS5731010A - Temperature control device - Google Patents

Temperature control device

Info

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
Application number
JP10610380A
Other languages
Japanese (ja)
Other versions
JPS6138492B2 (en
Inventor
Yasukiyo Ueda
Hirokuni Murakami
Takashi Iwasa
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 JP10610380A priority Critical patent/JPS5731010A/en
Publication of JPS5731010A publication Critical patent/JPS5731010A/en
Publication of JPS6138492B2 publication Critical patent/JPS6138492B2/ja
Granted 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
    • G05D23/1906—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.
JP10610380A 1980-07-31 1980-07-31 Temperature control device Granted JPS5731010A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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