JPS6452258A - Spindle motor drive circuit for disk player - Google Patents

Spindle motor drive circuit for disk player

Info

Publication number
JPS6452258A
JPS6452258A JP20877487A JP20877487A JPS6452258A JP S6452258 A JPS6452258 A JP S6452258A JP 20877487 A JP20877487 A JP 20877487A JP 20877487 A JP20877487 A JP 20877487A JP S6452258 A JPS6452258 A JP S6452258A
Authority
JP
Japan
Prior art keywords
drive
circuit
motor
controller
speed
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
JP20877487A
Other languages
Japanese (ja)
Inventor
Kimito Kobayashi
Susumu Niinuma
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP20877487A priority Critical patent/JPS6452258A/en
Publication of JPS6452258A publication Critical patent/JPS6452258A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To apply rough control of a drive speed with simple circuit constitution by providing a drive control system detecting a counter electromotive force generated from a spindle motor and controlling the motor when the voltage reaches an upper limit setting value or over or a lower limit setting value or below. CONSTITUTION:A drive circuit 10 gives a voltage to a spindle motor 1 by a drive command from a controller 11. A speed detection circuit 12 detects the drive speed by a counter electromotive voltage by the drive of the motor 1, gives a high level output to the controller 11 when the voltage reaches the upper limit and the controller 11 sends a drive stop instruction to the circuit 10. When the drive speed of the motor 1 is decreased and reaches the lower limit, the circuit 12 gives a low level output to the controller 11 and it sends a drive start instruction to the circuit 10. The operations above are repeated to allow the motor 1 to maintain a proper drive speed. Thus, rough control of the drive speed is attained with simple circuit configuration.
JP20877487A 1987-08-22 1987-08-22 Spindle motor drive circuit for disk player Pending JPS6452258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20877487A JPS6452258A (en) 1987-08-22 1987-08-22 Spindle motor drive circuit for disk player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20877487A JPS6452258A (en) 1987-08-22 1987-08-22 Spindle motor drive circuit for disk player

Publications (1)

Publication Number Publication Date
JPS6452258A true JPS6452258A (en) 1989-02-28

Family

ID=16561873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20877487A Pending JPS6452258A (en) 1987-08-22 1987-08-22 Spindle motor drive circuit for disk player

Country Status (1)

Country Link
JP (1) JPS6452258A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05205389A (en) * 1992-01-29 1993-08-13 Sanyo Electric Co Ltd Stoppage controller for motor
JPH05205390A (en) * 1992-01-29 1993-08-13 Sanyo Electric Co Ltd State detecting device for motor
US20120151112A1 (en) * 2010-12-09 2012-06-14 Dell Products, Lp System and Method for Mapping a Logical Drive Status to a Physical Drive Status for Multiple Storage Drives Having Different Storage Technologies within a Server

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668962A (en) * 1979-11-08 1981-06-09 Pioneer Video Corp Disk detecting circuit
JPS6278766A (en) * 1985-10-02 1987-04-11 Nippon Gakki Seizo Kk Control circuit for disk motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668962A (en) * 1979-11-08 1981-06-09 Pioneer Video Corp Disk detecting circuit
JPS6278766A (en) * 1985-10-02 1987-04-11 Nippon Gakki Seizo Kk Control circuit for disk motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05205389A (en) * 1992-01-29 1993-08-13 Sanyo Electric Co Ltd Stoppage controller for motor
JPH05205390A (en) * 1992-01-29 1993-08-13 Sanyo Electric Co Ltd State detecting device for motor
US20120151112A1 (en) * 2010-12-09 2012-06-14 Dell Products, Lp System and Method for Mapping a Logical Drive Status to a Physical Drive Status for Multiple Storage Drives Having Different Storage Technologies within a Server
US8583847B2 (en) * 2010-12-09 2013-11-12 Dell Products, Lp System and method for dynamically detecting storage drive type
US9164862B2 (en) 2010-12-09 2015-10-20 Dell Products, Lp System and method for dynamically detecting storage drive type

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