JPS54155377A - Sampling control device - Google Patents

Sampling control device

Info

Publication number
JPS54155377A
JPS54155377A JP6330378A JP6330378A JPS54155377A JP S54155377 A JPS54155377 A JP S54155377A JP 6330378 A JP6330378 A JP 6330378A JP 6330378 A JP6330378 A JP 6330378A JP S54155377 A JPS54155377 A JP S54155377A
Authority
JP
Japan
Prior art keywords
value
control
control current
time
deviation
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
JP6330378A
Other languages
Japanese (ja)
Inventor
Kazuo Kurihara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6330378A priority Critical patent/JPS54155377A/en
Publication of JPS54155377A publication Critical patent/JPS54155377A/en
Pending legal-status Critical Current

Links

Landscapes

  • Feedback Control In General (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To remove the pulsation of the amount to be controlled by a sampling control instruction while maintaining a control accuracy by outputting the sampling control instruction this time only when the deviation between a control instruction at this time sampling time and a control instruction at previous sampling time exceeds predetermined value.
CONSTITUTION: When a speed detecting circuit 2 operates at every predetermined period via a timing pulse generator 1 to thereby detect a motor speed and thus completes the detecting operation, a control current calculating circuit 3 operates to calculate the control current calculated value ic. An effective control current detecting circuit 5 compares the value ic with the control current value io outputted at present every time the value ic varies to thereby obtain a deviation Δic. When the deviation Δic is higher than predetermined set value, the value ic is outputted as a control current io to a motor control circuit 4. When it is lower than the predetermined set value, the control current io is not varied.
COPYRIGHT: (C)1979,JPO&Japio
JP6330378A 1978-05-29 1978-05-29 Sampling control device Pending JPS54155377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6330378A JPS54155377A (en) 1978-05-29 1978-05-29 Sampling control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6330378A JPS54155377A (en) 1978-05-29 1978-05-29 Sampling control device

Publications (1)

Publication Number Publication Date
JPS54155377A true JPS54155377A (en) 1979-12-07

Family

ID=13225391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6330378A Pending JPS54155377A (en) 1978-05-29 1978-05-29 Sampling control device

Country Status (1)

Country Link
JP (1) JPS54155377A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174085A (en) * 1984-02-15 1985-09-07 Mitsubishi Electric Corp Speed controller of induction motor
JPS60241786A (en) * 1984-05-15 1985-11-30 Mitsubishi Electric Corp Induction motor speed control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174085A (en) * 1984-02-15 1985-09-07 Mitsubishi Electric Corp Speed controller of induction motor
JPS60241786A (en) * 1984-05-15 1985-11-30 Mitsubishi Electric Corp Induction motor speed control device

Similar Documents

Publication Publication Date Title
JPS52153034A (en) Electric air-fuel ratio controlling device
JPS54155377A (en) Sampling control device
JPS548817A (en) Digital controller for motor
JPS54136617A (en) Digital control of motor
JPS5534977A (en) Battery voltage detector
JPS5716596A (en) Controlling device for linear motor
JPS534947A (en) Controller for elevator
JPS57138891A (en) Speed control system for motor
JPS5623529A (en) Automatic speed controller
JPS57142564A (en) Angular speed sensing device for steering
JPS5359811A (en) Control device of commutator-less motor
JPS5386208A (en) Photograph aperture control method
JPS5417219A (en) Safety device for electrically driven wheelchair
JPS52111622A (en) Semiconductor control apparatus
JPS5379220A (en) Control method for direct current motor number of revolution
JPS5433989A (en) Self cheque nechanism for anti-sid controller
JPS54110421A (en) Chopper controller
JPS5217179A (en) Servo motor control device
JPS52156318A (en) Electronic governor
JPS5329772A (en) Speed detecting method
JPS53110782A (en) Controller for controlling quantity containing dc portion
JPS5412404A (en) Pulse generator circuit for sampling and holding circuit
JPS5245987A (en) Torque detecting system
JPS56131068A (en) Arc welding machine
JPS51113123A (en) System for detecting stoppage of power