JPS5312321A - Mfb circuit - Google Patents

Mfb circuit

Info

Publication number
JPS5312321A
JPS5312321A JP8644276A JP8644276A JPS5312321A JP S5312321 A JPS5312321 A JP S5312321A JP 8644276 A JP8644276 A JP 8644276A JP 8644276 A JP8644276 A JP 8644276A JP S5312321 A JPS5312321 A JP S5312321A
Authority
JP
Japan
Prior art keywords
mfb circuit
signal
mfb
circuit
diaphragm
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
JP8644276A
Other languages
Japanese (ja)
Other versions
JPS573277B2 (en
Inventor
Tatsuo Fukuyama
Shinichiro Ishii
Kanji Odagi
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 JP8644276A priority Critical patent/JPS5312321A/en
Publication of JPS5312321A publication Critical patent/JPS5312321A/en
Publication of JPS573277B2 publication Critical patent/JPS573277B2/ja
Granted 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:Movements of a diaphragm are accurately detected by converting the change in the electrostatic capacity between a moving electrode and a fixed electrode to an electric signal and feeding back said signal to the input circuit of a power amplifier which drives a speaker.
JP8644276A 1976-07-19 1976-07-19 Mfb circuit Granted JPS5312321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8644276A JPS5312321A (en) 1976-07-19 1976-07-19 Mfb circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8644276A JPS5312321A (en) 1976-07-19 1976-07-19 Mfb circuit

Publications (2)

Publication Number Publication Date
JPS5312321A true JPS5312321A (en) 1978-02-03
JPS573277B2 JPS573277B2 (en) 1982-01-20

Family

ID=13887021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8644276A Granted JPS5312321A (en) 1976-07-19 1976-07-19 Mfb circuit

Country Status (1)

Country Link
JP (1) JPS5312321A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007020153A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp Speaker
JP2007020152A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp Speaker
JP2008113108A (en) * 2006-10-30 2008-05-15 Teac Corp Speaker
US7792318B2 (en) 2005-09-28 2010-09-07 Nidec Pigeon Corporation Speaker
US7864976B2 (en) 2005-06-07 2011-01-04 Nidec Pigeon Corporation Speaker
US7925040B2 (en) 2005-06-07 2011-04-12 Nidec Pigeon Corporation Speaker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007020153A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp Speaker
JP2007020152A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp Speaker
US7864976B2 (en) 2005-06-07 2011-01-04 Nidec Pigeon Corporation Speaker
JP4642698B2 (en) * 2005-06-07 2011-03-02 日本電産ピジョン株式会社 speaker
US7925040B2 (en) 2005-06-07 2011-04-12 Nidec Pigeon Corporation Speaker
US7792318B2 (en) 2005-09-28 2010-09-07 Nidec Pigeon Corporation Speaker
JP2008113108A (en) * 2006-10-30 2008-05-15 Teac Corp Speaker
JP4760668B2 (en) * 2006-10-30 2011-08-31 ティアック株式会社 Speaker

Also Published As

Publication number Publication date
JPS573277B2 (en) 1982-01-20

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