JPS57134701A - Control circuit - Google Patents

Control circuit

Info

Publication number
JPS57134701A
JPS57134701A JP1815481A JP1815481A JPS57134701A JP S57134701 A JPS57134701 A JP S57134701A JP 1815481 A JP1815481 A JP 1815481A JP 1815481 A JP1815481 A JP 1815481A JP S57134701 A JPS57134701 A JP S57134701A
Authority
JP
Japan
Prior art keywords
control
time constant
integrator
larger
selection circuit
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
JP1815481A
Other languages
Japanese (ja)
Inventor
Takashi Mizuno
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1815481A priority Critical patent/JPS57134701A/en
Publication of JPS57134701A publication Critical patent/JPS57134701A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To switch a PI controller continuously and quickly, by providing two integration time constants for an integrator of a proportional-position and integral action (PI) controller and setting the greater integral time constant when a controller is selected. CONSTITUTION:Two control circuits one or both of which have an integrator, and a selection circuit which selects one of the outputs of the two control circuits, are provided, and an integrator in the control circuits controlling the control variable through the output of the selection circuit is given with two large and small integration time constants. When the control circuit is selected, the time constant is switched to the larger one and when not selected, the smaller time constant is selected. For example, in the 1st and 2nd control systems in which either one is selected with a higher value priority selection circuit 40, a larger integration time constant and a smaller one are provided, and when selected, the larger one is selected through diodes DA2, DA3, DB2, DB3, allowing to perform integration control operation.
JP1815481A 1981-02-12 1981-02-12 Control circuit Pending JPS57134701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1815481A JPS57134701A (en) 1981-02-12 1981-02-12 Control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1815481A JPS57134701A (en) 1981-02-12 1981-02-12 Control circuit

Publications (1)

Publication Number Publication Date
JPS57134701A true JPS57134701A (en) 1982-08-20

Family

ID=11963690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1815481A Pending JPS57134701A (en) 1981-02-12 1981-02-12 Control circuit

Country Status (1)

Country Link
JP (1) JPS57134701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997006471A1 (en) * 1995-08-08 1997-02-20 Siemens Aktiengesellschaft Regulating system with at least two regulators and process for minimising the dead time of a regulating system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513410A (en) * 1978-07-12 1980-01-30 Yamatake Honeywell Co Ltd Selection control unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513410A (en) * 1978-07-12 1980-01-30 Yamatake Honeywell Co Ltd Selection control unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997006471A1 (en) * 1995-08-08 1997-02-20 Siemens Aktiengesellschaft Regulating system with at least two regulators and process for minimising the dead time of a regulating system

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