JPS57206194A - Control circuit of loudspeaker input - Google Patents

Control circuit of loudspeaker input

Info

Publication number
JPS57206194A
JPS57206194A JP9112981A JP9112981A JPS57206194A JP S57206194 A JPS57206194 A JP S57206194A JP 9112981 A JP9112981 A JP 9112981A JP 9112981 A JP9112981 A JP 9112981A JP S57206194 A JPS57206194 A JP S57206194A
Authority
JP
Japan
Prior art keywords
integrator
output
input
hpf2
comparator
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.)
Pending
Application number
JP9112981A
Other languages
Japanese (ja)
Inventor
Shintaro Hirose
Yasushi Miyoshi
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki Co 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP9112981A priority Critical patent/JPS57206194A/en
Publication of JPS57206194A publication Critical patent/JPS57206194A/en
Pending 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
    • H04R3/002—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)

Abstract

PURPOSE:To increase the woof reproducing range and at the same time to suppress the increase of the Q value which is due to the feedback, by integrating the output of an HPF by an integrator and then applying the outputs of the HPF and the integrator to the input of one side of a comparator. CONSTITUTION:The output Vo is applied to an HPF2, and the HPF2 has the same characteristics as a loudspeaker connected to an amplifier 1. The output of the HPF2 is applied to an integrator 4, and at the same time the outputs of the HPF2 and the integrator 4 are applied to the input of one side of a comparator 3 to be compared with the input Vi of the amplifier 1 which is applied to the other input of the comparator 3. The output of comparison of the comparator 3 is fed back to the amplifier 1. In such constitution, the Q value is kept substantially equal to the Q value of the speaker itself regardless of an increment of the feedback degree by selecting a proper ratio between the low band resonance frequency and the output of the integrator. As a result, the woof reproducing range is increased, and at the same time the increment of the Q value which is due to the feedback can be reduced.
JP9112981A 1981-06-12 1981-06-12 Control circuit of loudspeaker input Pending JPS57206194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9112981A JPS57206194A (en) 1981-06-12 1981-06-12 Control circuit of loudspeaker input

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9112981A JPS57206194A (en) 1981-06-12 1981-06-12 Control circuit of loudspeaker input

Publications (1)

Publication Number Publication Date
JPS57206194A true JPS57206194A (en) 1982-12-17

Family

ID=14017919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9112981A Pending JPS57206194A (en) 1981-06-12 1981-06-12 Control circuit of loudspeaker input

Country Status (1)

Country Link
JP (1) JPS57206194A (en)

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