FR2347847B1 - - Google Patents

Info

Publication number
FR2347847B1
FR2347847B1 FR7710800A FR7710800A FR2347847B1 FR 2347847 B1 FR2347847 B1 FR 2347847B1 FR 7710800 A FR7710800 A FR 7710800A FR 7710800 A FR7710800 A FR 7710800A FR 2347847 B1 FR2347847 B1 FR 2347847B1
Authority
FR
France
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.)
Expired
Application number
FR7710800A
Other languages
French (fr)
Other versions
FR2347847A1 (fr
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.)
Dual Gebruder Steidinger GmbH and Co
Original Assignee
Dual Gebruder Steidinger GmbH and Co
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 Dual Gebruder Steidinger GmbH and Co filed Critical Dual Gebruder Steidinger GmbH and Co
Publication of FR2347847A1 publication Critical patent/FR2347847A1/fr
Application granted granted Critical
Publication of FR2347847B1 publication Critical patent/FR2347847B1/fr
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
    • H04R3/007—Protection circuits for transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
FR7710800A 1976-04-08 1977-04-08 Circuit de protection de haut-parleur Granted FR2347847A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE762615305A DE2615305B2 (de) 1976-04-08 1976-04-08 Lautsprecher-Schutzschaltung

Publications (2)

Publication Number Publication Date
FR2347847A1 FR2347847A1 (fr) 1977-11-04
FR2347847B1 true FR2347847B1 (enExample) 1983-06-03

Family

ID=5974838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7710800A Granted FR2347847A1 (fr) 1976-04-08 1977-04-08 Circuit de protection de haut-parleur

Country Status (4)

Country Link
US (1) US4093822A (enExample)
JP (1) JPS52124323A (enExample)
DE (1) DE2615305B2 (enExample)
FR (1) FR2347847A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017506A1 (de) * 1990-05-31 1991-12-05 Sennheiser Electronic Schaltungsanordnung zur begrenzung der lautstaerke
DE4336608C2 (de) * 1993-10-27 1997-02-06 Klippel Wolfgang Schaltungsanordnung zum Schutz elektrodynamischer Lautsprecher gegen mechanische Überlastung durch hohe Schwingspulenauslenkung
GB2299238B (en) * 1995-03-22 1997-06-11 Audix Communications Limited Loudspeaker and loudspeaker system
US6163613A (en) * 1995-06-26 2000-12-19 Cowans; Kenneth W. Low-distortion loudspeaker
US5969928A (en) * 1997-12-03 1999-10-19 Gould Electronics Inc. Shunt for circuit protection device
US6201680B1 (en) 1999-02-02 2001-03-13 Aram Armen Tokatian Adjustable high-speed audio transducer protection circuit
US6647120B2 (en) 2001-04-05 2003-11-11 Community Light And Sound, Inc. Loudspeaker protection circuit responsive to temperature of loudspeaker driver mechanism
DE112009005469B4 (de) * 2009-12-24 2019-06-27 Nokia Technologies Oy Lautsprecherschutzvorrichtung und Verfahren dafür
US8750525B2 (en) * 2010-01-28 2014-06-10 Harris Corporation Method to maximize loudspeaker sound pressure level with a high peak to average power ratio audio source
CN102347059A (zh) * 2010-08-04 2012-02-08 鸿富锦精密工业（深圳）有限公司 音频播放器及具有音频播放器的电子装置
US9749739B2 (en) * 2015-09-18 2017-08-29 Qualcomm Incorporated Protection of a speaker from thermal damage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237448A (en) * 1937-06-08 1941-04-08 Telefunken Gmbh Overload protection for dynamic loud-speakers
FR1341127A (fr) * 1961-12-08 1963-10-25 Philips Nv Dispositifs à brancher sur deux tensions de secteur
US3423636A (en) * 1966-07-29 1969-01-21 Edwards Co Surge limiting system
US3529210A (en) * 1967-02-28 1970-09-15 Mitsubishi Electric Corp Current limiting circuit
US3890465A (en) * 1972-07-11 1975-06-17 Victor Company Of Japan Circuit arrangement for protection of a speaker system
US3935511A (en) * 1973-12-26 1976-01-27 Texas Instruments Incorporated Current inrush limiter

Also Published As

Publication number Publication date
US4093822A (en) 1978-06-06
JPS52124323A (en) 1977-10-19
DE2615305A1 (de) 1977-10-13
DE2615305B2 (de) 1979-03-08
FR2347847A1 (fr) 1977-11-04

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Legal Events

Date Code Title Description
ST Notification of lapse