JPS5542377A - Tone arm driver - Google Patents
Tone arm driverInfo
- Publication number
- JPS5542377A JPS5542377A JP11626978A JP11626978A JPS5542377A JP S5542377 A JPS5542377 A JP S5542377A JP 11626978 A JP11626978 A JP 11626978A JP 11626978 A JP11626978 A JP 11626978A JP S5542377 A JPS5542377 A JP S5542377A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- damping
- supplied
- tone arm
- driving
- 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
Abstract
PURPOSE: To attain accurate drive and damping by suppressing variation in torque due to a rise in temperature by independently operating driving and damping coils by their own coils and then supplying a constant current to the driving coil.
CONSTITUTION: Once vertical balance signal E is supplied to input terminal 20, a current flows from the output terminal of amplifier circuit 21 to motor coil L11 through detection resistance R3 to move a tone arm vertically, so that its moving speed will be detected by detection coil L12. A detection signal is supplied to amplifier circuit 25 and an amplified output signal is supplied to one terminal of motor coil L13, therefore, the tone arm moves vertically by driving torque generated by coil L11 and is damped by driving torque generated by coil L13. Consequently, variation in torque due to a rise in temperature of the coil can be suppressed and drive and damping can accurately be performed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11626978A JPS5542377A (en) | 1978-09-21 | 1978-09-21 | Tone arm driver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11626978A JPS5542377A (en) | 1978-09-21 | 1978-09-21 | Tone arm driver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5542377A true JPS5542377A (en) | 1980-03-25 |
JPS6127803B2 JPS6127803B2 (en) | 1986-06-27 |
Family
ID=14682893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11626978A Granted JPS5542377A (en) | 1978-09-21 | 1978-09-21 | Tone arm driver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5542377A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358842A (en) * | 1979-07-10 | 1982-11-09 | Sony Corporation | Record player |
-
1978
- 1978-09-21 JP JP11626978A patent/JPS5542377A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358842A (en) * | 1979-07-10 | 1982-11-09 | Sony Corporation | Record player |
Also Published As
Publication number | Publication date |
---|---|
JPS6127803B2 (en) | 1986-06-27 |
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