JPS5542377A - Tone arm driver - Google Patents

Tone arm driver

Info

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
Application number
JP11626978A
Other languages
Japanese (ja)
Other versions
JPS6127803B2 (en
Inventor
Shuichi Kimura
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP11626978A priority Critical patent/JPS5542377A/en
Publication of JPS5542377A publication Critical patent/JPS5542377A/en
Publication of JPS6127803B2 publication Critical patent/JPS6127803B2/ja
Granted legal-status Critical Current

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
JP11626978A 1978-09-21 1978-09-21 Tone arm driver Granted JPS5542377A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358842A (en) * 1979-07-10 1982-11-09 Sony Corporation Record player

Cited By (1)

* Cited by examiner, † Cited by third party
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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