JPS5616968A - Speed control system of data converter in data memory unit - Google Patents

Speed control system of data converter in data memory unit

Info

Publication number
JPS5616968A
JPS5616968A JP9256479A JP9256479A JPS5616968A JP S5616968 A JPS5616968 A JP S5616968A JP 9256479 A JP9256479 A JP 9256479A JP 9256479 A JP9256479 A JP 9256479A JP S5616968 A JPS5616968 A JP S5616968A
Authority
JP
Japan
Prior art keywords
speed
signal
objective
speed control
resonance
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
JP9256479A
Other languages
Japanese (ja)
Inventor
Hiromi Ishizuka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9256479A priority Critical patent/JPS5616968A/en
Publication of JPS5616968A publication Critical patent/JPS5616968A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Velocity Or Acceleration (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE: To enable the normal speed control even if the resonance is in existence in the moving mechanism, by constituting the gain of the speed error detection amplifier that it is not constant at acceleration and deceleration area and the gain is smaller as the absolute value of input increases.
CONSTITUTION: The signal 1 from the track counter 16 where the number of scheduled tracks is set, inputs the objective speed signal 4 to the speed error amplifier 5 via the objective speed generating circuit 18. The output 21 accelerates the moving mechanism 9 to the objective speed via the power amplifier 7 and voice coil motor 8. After the integrating signal of the drive current 13 by the integrator 11, position error signal by the differentiator 12, and the speed signal 6 obtained with the synthesis of the position error signal based on the resonance of the mechanism 9 are in agreement with the objective speed signal 4, the data converter group 20 is moved toward the desired track. Accordingly, the resonance during speed control can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP9256479A 1979-07-23 1979-07-23 Speed control system of data converter in data memory unit Pending JPS5616968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9256479A JPS5616968A (en) 1979-07-23 1979-07-23 Speed control system of data converter in data memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9256479A JPS5616968A (en) 1979-07-23 1979-07-23 Speed control system of data converter in data memory unit

Publications (1)

Publication Number Publication Date
JPS5616968A true JPS5616968A (en) 1981-02-18

Family

ID=14057913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9256479A Pending JPS5616968A (en) 1979-07-23 1979-07-23 Speed control system of data converter in data memory unit

Country Status (1)

Country Link
JP (1) JPS5616968A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169777A (en) * 1983-03-15 1984-09-25 日本電子科学株式会社 Drive for arm of industrial robot
JPS6344379A (en) * 1986-08-08 1988-02-25 Fujitsu Ltd Positioning control system
JPS6442081A (en) * 1987-08-08 1989-02-14 Fujitsu Ltd Digital servo speed control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169777A (en) * 1983-03-15 1984-09-25 日本電子科学株式会社 Drive for arm of industrial robot
JPS6344379A (en) * 1986-08-08 1988-02-25 Fujitsu Ltd Positioning control system
JPS6442081A (en) * 1987-08-08 1989-02-14 Fujitsu Ltd Digital servo speed control system

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