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GB2068680B - Arrangement for driving speaker through constant-current power amplifier - Google Patents

Arrangement for driving speaker through constant-current power amplifier

Info

Publication number
GB2068680B
GB2068680B GB8101385A GB8101385A GB2068680B GB 2068680 B GB2068680 B GB 2068680B GB 8101385 A GB8101385 A GB 8101385A GB 8101385 A GB8101385 A GB 8101385A GB 2068680 B GB2068680 B GB 2068680B
Authority
GB
United Kingdom
Prior art keywords
constant
arrangement
power amplifier
current power
driving speaker
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.)
Expired
Application number
GB8101385A
Other versions
GB2068680A (en
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB2068680A publication Critical patent/GB2068680A/en
Application granted granted Critical
Publication of GB2068680B publication Critical patent/GB2068680B/en
Expired 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
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB8101385A 1980-01-23 1981-01-16 Arrangement for driving speaker through constant-current power amplifier Expired GB2068680B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP572780A JPS56103592A (en) 1980-01-23 1980-01-23 Speaker driving system

Publications (2)

Publication Number Publication Date
GB2068680A GB2068680A (en) 1981-08-12
GB2068680B true GB2068680B (en) 1983-12-07

Family

ID=11619149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8101385A Expired GB2068680B (en) 1980-01-23 1981-01-16 Arrangement for driving speaker through constant-current power amplifier

Country Status (2)

Country Link
JP (1) JPS56103592A (en)
GB (1) GB2068680B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8203428A (en) * 1982-09-02 1984-04-02 Philips Nv DEVICE FOR CONVERTING AN ELECTRIC SIGNAL TO AN ACOUSTIC SIGNAL.
NL8501719A (en) * 1985-06-14 1987-01-02 Philips Nv BASREFLEX SPEAKER SYSTEM.
US5123052A (en) * 1990-02-01 1992-06-16 Brisson Bruce A Method and apparatus for reducing the attenuation and phase shift of low frequency components of audio signals
GB9101038D0 (en) * 1991-01-17 1991-02-27 Jim Marshall Products Limited Audio amplifiers
JP2828543B2 (en) * 1991-08-02 1998-11-25 シャープ株式会社 Speaker drive circuit
RU2181932C1 (en) * 2001-05-29 2002-04-27 Сырицо Александр Петрович Method for sound reinforcement including current control of electrodynamic loudspeaker and power amplifier for active acoustic systems
FR3018418B1 (en) * 2014-03-04 2017-11-10 Univ Maine DEVICE AND METHOD FOR FILTERING THE RESONANCE PIC IN A POWER CIRCUIT OF AT LEAST ONE SPEAKER
FR3018419B1 (en) * 2014-03-05 2017-06-23 Univ Maine DEVICE AND METHOD FOR FILTERING THE RESONANCE PIC IN A POWER SUPPLY CIRCUIT OF AT LEAST ONE SPEAKER BEFORE THE SAME

Also Published As

Publication number Publication date
GB2068680A (en) 1981-08-12
JPS56103592A (en) 1981-08-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee