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
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)
- 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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA982055A (en) * | 1972-09-11 | 1976-01-20 | Toshiyuki Goto | Sound reproducing system |
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 |
-
1983
- 1983-07-22 DE DE19833326494 patent/DE3326494A1/en active Granted
-
1984
- 1984-07-21 DE DE8484108638T patent/DE3479855D1/en not_active Expired
- 1984-07-21 EP EP84108638A patent/EP0133948B1/en not_active Expired
- 1984-07-21 AT AT84108638T patent/ATE46600T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3479855D1 (en) | 1989-10-26 |
EP0133948B1 (en) | 1989-09-20 |
DE3326494C2 (en) | 1991-02-14 |
DE3326494A1 (en) | 1985-01-31 |
EP0133948A1 (en) | 1985-03-13 |
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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 |