JPS55143897A - Speed feedback-type driving amplifier - Google Patents

Speed feedback-type driving amplifier

Info

Publication number
JPS55143897A
JPS55143897A JP5135979A JP5135979A JPS55143897A JP S55143897 A JPS55143897 A JP S55143897A JP 5135979 A JP5135979 A JP 5135979A JP 5135979 A JP5135979 A JP 5135979A JP S55143897 A JPS55143897 A JP S55143897A
Authority
JP
Japan
Prior art keywords
feedback
circuit
speed
coefficient
rate
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
JP5135979A
Other languages
Japanese (ja)
Inventor
Toshiyasu Hamao
Hiroshi Horikawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5135979A priority Critical patent/JPS55143897A/en
Publication of JPS55143897A publication Critical patent/JPS55143897A/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 perform speed feedback without a speed detection element, by providing a current positive feedback circuit, which has the feedback rate dependent upon the product between the impedance independent of dynamic movement of the conversion apparatus and the feedback coefficient, and a voltage negative feedback circuit having the feedback rate of the feedback coefficient. CONSTITUTION:For the purpose of equalizing the system, which drives conversion apparatus 2 by overall four-terminal circuit network 7 subjected to composite feedback of voltage feedback and current feedback, and the system which performs speed feedback separately by using a speed detection element, feedback rate betai of betai circuit 6 of the current positive feedback circuit is determined by the product between the feedback coefficient indicated by beta/xsi12 and impedance xsi11 independent of dynamic movement of conversion apparatus 2, and feedback rate betae of betae circuit 4 of the voltage negative feedback circuit is caused to be equal to the feedback coefficient of current positive feedback. Consequently, speed feedback is performed without a speed detection element.
JP5135979A 1979-04-27 1979-04-27 Speed feedback-type driving amplifier Pending JPS55143897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5135979A JPS55143897A (en) 1979-04-27 1979-04-27 Speed feedback-type driving amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5135979A JPS55143897A (en) 1979-04-27 1979-04-27 Speed feedback-type driving amplifier

Publications (1)

Publication Number Publication Date
JPS55143897A true JPS55143897A (en) 1980-11-10

Family

ID=12884731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5135979A Pending JPS55143897A (en) 1979-04-27 1979-04-27 Speed feedback-type driving amplifier

Country Status (1)

Country Link
JP (1) JPS55143897A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251521A (en) * 1975-10-23 1977-04-25 Meidensha Electric Mfg Co Ltd Induction motor driving controlling circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251521A (en) * 1975-10-23 1977-04-25 Meidensha Electric Mfg Co Ltd Induction motor driving controlling circuit

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