JPS57141724A - Speed controller - Google Patents

Speed controller

Info

Publication number
JPS57141724A
JPS57141724A JP56026840A JP2684081A JPS57141724A JP S57141724 A JPS57141724 A JP S57141724A JP 56026840 A JP56026840 A JP 56026840A JP 2684081 A JP2684081 A JP 2684081A JP S57141724 A JPS57141724 A JP S57141724A
Authority
JP
Japan
Prior art keywords
digital
pulse train
lpf
speed
counter
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
JP56026840A
Other languages
Japanese (ja)
Inventor
Tsuguo Niihama
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.)
Toyo Denki Seizo KK
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Denki Seizo KK
Toyo Electric Manufacturing 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 Toyo Denki Seizo KK, Toyo Electric Manufacturing Ltd filed Critical Toyo Denki Seizo KK
Priority to JP56026840A priority Critical patent/JPS57141724A/en
Publication of JPS57141724A publication Critical patent/JPS57141724A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/22—Controlling the speed digitally using a reference oscillator, a speed proportional pulse rate feedback and a digital comparator

Abstract

PURPOSE:To remarkably increase the tracking performance of a numerical controller with simple constitution, by constituting a negative feedback integrating loop taking a digital-frequency converter as a virtual gain element and using a realized LPF for the speed control of the numerical controller. CONSTITUTION:An arithmetic circuit 5 outputs a shift pulse train in a specified speed based on an input data. A digital-frequency converter 8 outputs a pulse train of a frequency proportional to a digital input value from a counter 6. The ouptut pulse train and that of the circuit 5 are inputted to the counter 6, the deviation of both the pulse trains is stored in real time and the output becomes a digital input of the converter 8. Thus, the smoothing of acceleration and deceleration change can be made simply by adding an LPF to a conventional speed controller, allowing to make continuous positioning with high accuracy and high speed.
JP56026840A 1981-02-27 1981-02-27 Speed controller Pending JPS57141724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026840A JPS57141724A (en) 1981-02-27 1981-02-27 Speed controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026840A JPS57141724A (en) 1981-02-27 1981-02-27 Speed controller

Publications (1)

Publication Number Publication Date
JPS57141724A true JPS57141724A (en) 1982-09-02

Family

ID=12204459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026840A Pending JPS57141724A (en) 1981-02-27 1981-02-27 Speed controller

Country Status (1)

Country Link
JP (1) JPS57141724A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263582A (en) * 1975-11-19 1977-05-26 Toshiba Corp Speed instruction circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263582A (en) * 1975-11-19 1977-05-26 Toshiba Corp Speed instruction circuit

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