JPS5555697A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5555697A
JPS5555697A JP12910378A JP12910378A JPS5555697A JP S5555697 A JPS5555697 A JP S5555697A JP 12910378 A JP12910378 A JP 12910378A JP 12910378 A JP12910378 A JP 12910378A JP S5555697 A JPS5555697 A JP S5555697A
Authority
JP
Japan
Prior art keywords
coil
voice coil
resistance
magnetic
straight line
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
JP12910378A
Other languages
Japanese (ja)
Other versions
JPS5831158B2 (en
Inventor
Katsumasa Sato
Takahisa Aoi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12910378A priority Critical patent/JPS5831158B2/en
Publication of JPS5555697A publication Critical patent/JPS5555697A/en
Publication of JPS5831158B2 publication Critical patent/JPS5831158B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Abstract

PURPOSE:To extend the range of straight line for the driving force of voice coil, by changing the resistance of voice coil depending on the magnetic flux density of magnetic gap. CONSTITUTION:When a part or all the voice coil 8 is formed with semiconductor having magnetic resistance effect, the coil 8 is out of the magnetic gap for up and down and the magnetic flux B is decreased. Then, the resistance of the coil 8 is reduced and the current flowing to the coil 8 is increased. As a result, the driving force to the voice coil 8 is kept constant and the range of straight line of the drive force can be extended.
JP12910378A 1978-10-19 1978-10-19 speaker Expired JPS5831158B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12910378A JPS5831158B2 (en) 1978-10-19 1978-10-19 speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12910378A JPS5831158B2 (en) 1978-10-19 1978-10-19 speaker

Publications (2)

Publication Number Publication Date
JPS5555697A true JPS5555697A (en) 1980-04-23
JPS5831158B2 JPS5831158B2 (en) 1983-07-04

Family

ID=15001134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12910378A Expired JPS5831158B2 (en) 1978-10-19 1978-10-19 speaker

Country Status (1)

Country Link
JP (1) JPS5831158B2 (en)

Also Published As

Publication number Publication date
JPS5831158B2 (en) 1983-07-04

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