ATE46600T1 - METHOD AND DEVICE FOR DEPOSITING THE MOTIONAL VOLTAGE OF A LOUDSPEAKER. - Google Patents

METHOD AND DEVICE FOR DEPOSITING THE MOTIONAL VOLTAGE OF A LOUDSPEAKER.

Info

Publication number
ATE46600T1
ATE46600T1 AT84108638T AT84108638T ATE46600T1 AT E46600 T1 ATE46600 T1 AT E46600T1 AT 84108638 T AT84108638 T AT 84108638T AT 84108638 T AT84108638 T AT 84108638T AT E46600 T1 ATE46600 T1 AT E46600T1
Authority
AT
Austria
Prior art keywords
voltage
loudspeaker
network
depositing
supplied
Prior art date
Application number
AT84108638T
Other languages
German (de)
Inventor
Burkhard Dick
Paul Dr Scherer
Original Assignee
Burkhard Dick
Scherer Paul
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 Burkhard Dick, Scherer Paul filed Critical Burkhard Dick
Application granted granted Critical
Publication of ATE46600T1 publication Critical patent/ATE46600T1/en

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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

1. Method for negative feedback of movement induced voltage of a moving-coil loudspeaker with respect to the signal voltage with the aid of a network, in which the movement induced voltage is obtained by subtraction between the loudspeaker terminal voltage and an offset voltage, characterized in that the electric signal to be reproduced is supplied to the loudspeaker (3) as an impressed current, that the input of a network (4, A'F , A'M ) comprising capacitors (CK1 etc.) resistors (R02 etc.) and operators and simulating at its output the voltage drop at the impedance of the firmly braked loudspeaker (3) is supplied with a voltage proportional to the impressed current and the output voltage of the network (4, A'F , A'M ) is used as the offset voltage for subtraction purposes.
AT84108638T 1983-07-22 1984-07-21 METHOD AND DEVICE FOR DEPOSITING THE MOTIONAL VOLTAGE OF A LOUDSPEAKER. ATE46600T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833326494 DE3326494A1 (en) 1983-07-22 1983-07-22 CONTROL OF THE DIAPHRAGM MOVEMENT OF THE DYNAMIC SPEAKER BY AN IMPROVED NETWORK TO IMPLEMENT ITS INPUT IMPEDANCE
EP84108638A EP0133948B1 (en) 1983-07-22 1984-07-21 Method and apparatus for negative feedback of movement induced voltage in a loudspeaker

Publications (1)

Publication Number Publication Date
ATE46600T1 true ATE46600T1 (en) 1989-10-15

Family

ID=6204681

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84108638T ATE46600T1 (en) 1983-07-22 1984-07-21 METHOD AND DEVICE FOR DEPOSITING THE MOTIONAL VOLTAGE OF A LOUDSPEAKER.

Country Status (3)

Country Link
EP (1) EP0133948B1 (en)
AT (1) ATE46600T1 (en)
DE (2) DE3326494A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638258A (en) * 1982-02-26 1987-01-20 Barcus-Berry Electronics, Inc. Reference load amplifier correction system
GB2196815B (en) * 1986-09-25 1989-01-11 David Robin Birt Motional feedback system for loudspeakers
DE102004021546A1 (en) * 2004-05-03 2005-12-08 Avantgarde Acoustic Lautsprechersysteme Gmbh Electroacoustic transducer for loudspeaker with horn incorporates amplifier with negative output impedance and has power amplifier with negative feedback via resistor
WO2008007312A1 (en) * 2006-07-10 2008-01-17 Bobinados De Transformadores S.L. Power amplifier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889060A (en) * 1972-09-11 1975-06-10 Matsushita Electric Industrial Co Ltd Feedback amplifier distortion-cancelling circuit
DE2420689C3 (en) * 1974-04-29 1984-09-20 Arndt 7500 Karlsruhe Klingelnberg Method and arrangement for improving the properties of electrodynamic transducers by means of negative motion
AU512725B2 (en) * 1976-06-08 1980-10-23 E. Hermann Keith Voice coil amplifier
DE2828520C2 (en) * 1978-06-29 1985-09-05 Hermann Dipl.-Ing. 6837 St Leon-Rot Tropf Regulation of the membrane movement of pulsed electrodynamic loudspeakers
DE2922112A1 (en) * 1979-05-31 1980-12-04 Wolfgang Scholl Loudspeaker level control circuit - has opto-electrical device or additional coil to monitor diaphragm movement to obtain control voltage
JPS6134749Y2 (en) * 1979-09-28 1986-10-09
DE3021007C2 (en) * 1980-05-31 1984-05-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Circuit arrangement with amplifier and transformer

Also Published As

Publication number Publication date
DE3479855D1 (en) 1989-10-26
DE3326494A1 (en) 1985-01-31
DE3326494C2 (en) 1991-02-14
EP0133948A1 (en) 1985-03-13
EP0133948B1 (en) 1989-09-20

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Legal Events

Date Code Title Description
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee