JPS6176085A - モ−タ駆動装置 - Google Patents
モ−タ駆動装置Info
- Publication number
- JPS6176085A JPS6176085A JP59196429A JP19642984A JPS6176085A JP S6176085 A JPS6176085 A JP S6176085A JP 59196429 A JP59196429 A JP 59196429A JP 19642984 A JP19642984 A JP 19642984A JP S6176085 A JPS6176085 A JP S6176085A
- Authority
- JP
- Japan
- Prior art keywords
- control means
- control signal
- speed
- spindle motor
- rotation
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000002910 rare earth metals Chemical group 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
- G11B5/553—Details
Landscapes
- Rotational Drive Of Disk (AREA)
- Control Of Position Or Direction (AREA)
- Control Of Electric Motors In General (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59196429A JPS6176085A (ja) | 1984-09-19 | 1984-09-19 | モ−タ駆動装置 |
US06/777,080 US4623943A (en) | 1984-09-19 | 1985-09-17 | Head positioning apparatus using a DC motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59196429A JPS6176085A (ja) | 1984-09-19 | 1984-09-19 | モ−タ駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6176085A true JPS6176085A (ja) | 1986-04-18 |
JPH0210670B2 JPH0210670B2 (enrdf_load_stackoverflow) | 1990-03-09 |
Family
ID=16357689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59196429A Granted JPS6176085A (ja) | 1984-09-19 | 1984-09-19 | モ−タ駆動装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6176085A (enrdf_load_stackoverflow) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5460670A (en) * | 1977-10-21 | 1979-05-16 | Ricoh Co Ltd | Positioning system |
JPS54103506A (en) * | 1978-02-01 | 1979-08-15 | Sony Corp | Rotation control device |
JPS5886882A (ja) * | 1981-11-16 | 1983-05-24 | Toshiba Corp | 無刷子モ−タ |
-
1984
- 1984-09-19 JP JP59196429A patent/JPS6176085A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5460670A (en) * | 1977-10-21 | 1979-05-16 | Ricoh Co Ltd | Positioning system |
JPS54103506A (en) * | 1978-02-01 | 1979-08-15 | Sony Corp | Rotation control device |
JPS5886882A (ja) * | 1981-11-16 | 1983-05-24 | Toshiba Corp | 無刷子モ−タ |
Also Published As
Publication number | Publication date |
---|---|
JPH0210670B2 (enrdf_load_stackoverflow) | 1990-03-09 |
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