IT1193977B - PROTECTION CIRCUIT AND OVERLOAD INDICATION FOR A SPEAKER ARRANGEMENT - Google Patents

PROTECTION CIRCUIT AND OVERLOAD INDICATION FOR A SPEAKER ARRANGEMENT

Info

Publication number
IT1193977B
IT1193977B IT23857/80A IT2385780A IT1193977B IT 1193977 B IT1193977 B IT 1193977B IT 23857/80 A IT23857/80 A IT 23857/80A IT 2385780 A IT2385780 A IT 2385780A IT 1193977 B IT1193977 B IT 1193977B
Authority
IT
Italy
Prior art keywords
protection circuit
speaker arrangement
overload indication
overload
indication
Prior art date
Application number
IT23857/80A
Other languages
Italian (it)
Other versions
IT8023857A0 (en
Inventor
Thomas Hommel
Original Assignee
Int Standard Electric 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of IT8023857A0 publication Critical patent/IT8023857A0/en
Application granted granted Critical
Publication of IT1193977B publication Critical patent/IT1193977B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • 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)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
IT23857/80A 1979-08-16 1980-08-01 PROTECTION CIRCUIT AND OVERLOAD INDICATION FOR A SPEAKER ARRANGEMENT IT1193977B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2933010A DE2933010C2 (en) 1979-08-16 1979-08-16 Overload protection and overload display circuit for a loudspeaker arrangement

Publications (2)

Publication Number Publication Date
IT8023857A0 IT8023857A0 (en) 1980-08-01
IT1193977B true IT1193977B (en) 1988-08-31

Family

ID=6078482

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23857/80A IT1193977B (en) 1979-08-16 1980-08-01 PROTECTION CIRCUIT AND OVERLOAD INDICATION FOR A SPEAKER ARRANGEMENT

Country Status (3)

Country Link
DE (1) DE2933010C2 (en)
IT (1) IT1193977B (en)
NL (1) NL8004566A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538296A (en) * 1983-07-22 1985-08-27 Short Robert S Sound inhibitor for audio transducers
DE3420468A1 (en) * 1984-06-01 1985-12-05 Holger 2407 Bad Schwartau Schulz-Dusenschön Circuit for protecting loudspeakers against overload
DE4137605C2 (en) * 1991-11-15 1995-08-31 Grundig Emv Optical warning indicator for an electroacoustic device
DE4336608C2 (en) * 1993-10-27 1997-02-06 Klippel Wolfgang Circuit arrangement for the protection of electrodynamic loudspeakers against mechanical overload due to high voice coil deflection
GB2469269A (en) * 2009-04-03 2010-10-13 Limitear Ltd A light emitting diode used as a limiter and high volume indicator for an audio transducer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT294214B (en) * 1968-02-29 1971-11-10 Wsz Elektronik G M B H Circuit arrangement for limiting the power supplied to a loudspeaker
DE2624252B2 (en) * 1976-05-29 1978-11-23 Rudolf A. 6382 Friedrichsdorf Goebel Overload protection circuit for a loudspeaker arrangement
DE2626680A1 (en) * 1976-06-15 1977-12-22 All Akustik Vertriebs Gmbh & C Vol. indicator for loudspeakers - uses LEDs controlled by transistors in circuit connected in parallel with loudspeaker via resistor and rectifying diode
DE2738759B2 (en) * 1977-08-27 1979-08-09 Hans G. Hennel Gmbh Und Co Kg, 6390 Usingen Loudspeaker box with several
DE2836091B2 (en) * 1978-08-17 1980-07-03 Hans G. Hennel Gmbh Und Co Kg, 6390 Usingen Overload indicator

Also Published As

Publication number Publication date
DE2933010C2 (en) 1983-03-31
IT8023857A0 (en) 1980-08-01
NL8004566A (en) 1981-02-18
DE2933010A1 (en) 1981-02-19

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