JPS6158910B2 - - Google Patents
Info
- Publication number
- JPS6158910B2 JPS6158910B2 JP9707176A JP9707176A JPS6158910B2 JP S6158910 B2 JPS6158910 B2 JP S6158910B2 JP 9707176 A JP9707176 A JP 9707176A JP 9707176 A JP9707176 A JP 9707176A JP S6158910 B2 JPS6158910 B2 JP S6158910B2
- Authority
- JP
- Japan
- Prior art keywords
- motor
- speed
- speed detection
- voltage
- transistor
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/22—Brakes other than speed-regulating brakes
Landscapes
- Rotational Drive Of Disk (AREA)
- Stopping Of Electric Motors (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9707176A JPS5322705A (en) | 1976-08-16 | 1976-08-16 | Ro tation danping device of turntable of record players |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9707176A JPS5322705A (en) | 1976-08-16 | 1976-08-16 | Ro tation danping device of turntable of record players |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5322705A JPS5322705A (en) | 1978-03-02 |
| JPS6158910B2 true JPS6158910B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1986-12-13 |
Family
ID=14182401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9707176A Granted JPS5322705A (en) | 1976-08-16 | 1976-08-16 | Ro tation danping device of turntable of record players |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5322705A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58208970A (ja) * | 1982-05-31 | 1983-12-05 | Sony Corp | デイスク回転制御装置 |
| JPS6262472A (ja) * | 1985-09-13 | 1987-03-19 | Nippon Gakki Seizo Kk | デイスクモ−タの制御回路 |
-
1976
- 1976-08-16 JP JP9707176A patent/JPS5322705A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5322705A (en) | 1978-03-02 |