JPS5312319A - Mfb circuit - Google Patents

Mfb circuit

Info

Publication number
JPS5312319A
JPS5312319A JP8644076A JP8644076A JPS5312319A JP S5312319 A JPS5312319 A JP S5312319A JP 8644076 A JP8644076 A JP 8644076A JP 8644076 A JP8644076 A JP 8644076A JP S5312319 A JPS5312319 A JP S5312319A
Authority
JP
Japan
Prior art keywords
circuit
fixed electrode
mfb circuit
signal
mfb
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
JP8644076A
Other languages
Japanese (ja)
Other versions
JPS5436486B2 (en
Inventor
Tatsuo Fukuyama
Kanji Odagi
Shinichiro Ishii
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 JP8644076A priority Critical patent/JPS5312319A/en
Publication of JPS5312319A publication Critical patent/JPS5312319A/en
Publication of JPS5436486B2 publication Critical patent/JPS5436486B2/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • 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 detected by so arranging the circuit that the change in the electrostatic capacity formed between an inner fixed electrode and an outer fixed electrode is converted to an electric signal and that this signal is fed back to the input circuit of a power amplifier which drives a speaker.
JP8644076A 1976-07-19 1976-07-19 Mfb circuit Granted JPS5312319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8644076A JPS5312319A (en) 1976-07-19 1976-07-19 Mfb circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8644076A JPS5312319A (en) 1976-07-19 1976-07-19 Mfb circuit

Publications (2)

Publication Number Publication Date
JPS5312319A true JPS5312319A (en) 1978-02-03
JPS5436486B2 JPS5436486B2 (en) 1979-11-09

Family

ID=13886966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8644076A Granted JPS5312319A (en) 1976-07-19 1976-07-19 Mfb circuit

Country Status (1)

Country Link
JP (1) JPS5312319A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328716U (en) * 1976-08-18 1978-03-11
JP2007020152A (en) * 2005-06-07 2007-01-25 Nidec Pigeon 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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328716U (en) * 1976-08-18 1978-03-11
JP2007020152A (en) * 2005-06-07 2007-01-25 Nidec Pigeon Corp 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
US7792318B2 (en) 2005-09-28 2010-09-07 Nidec Pigeon Corporation Speaker
CN1956599B (en) 2005-09-28 2011-11-30 日本电产鸽株式会社 Speaker

Also Published As

Publication number Publication date
JPS5436486B2 (en) 1979-11-09

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