JPS6452258A - Spindle motor drive circuit for disk player - Google Patents
Spindle motor drive circuit for disk playerInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-08-22 JP JP20877487A patent/JPS6452258A/en active Pending
Patent Citations (2)
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)
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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