JPS572106A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS572106A
JPS572106A JP7488380A JP7488380A JPS572106A JP S572106 A JPS572106 A JP S572106A JP 7488380 A JP7488380 A JP 7488380A JP 7488380 A JP7488380 A JP 7488380A JP S572106 A JPS572106 A JP S572106A
Authority
JP
Japan
Prior art keywords
distortion
circuit
amplifying circuit
voltage
electric power
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
JP7488380A
Other languages
Japanese (ja)
Inventor
Seijiro Fujie
Akio Ozawa
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP7488380A priority Critical patent/JPS572106A/en
Publication of JPS572106A publication Critical patent/JPS572106A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To reduce the distortion which is caused at the inside of an electric power amplifying circuit, by providing a voltage amplifying circuit having a reduced distortion in parallel to the electric power amplifying circuit to which a speaker or the like is connected and feeding back the difference of the output voltages of both circuits to the feedback point of the electric power amplifying circuit in an adverse phase. CONSTITUTION:A voltage amplifying circuit 2 having an extremely reduced distortion is provided in parallel to an electric power amplifying circuit 1. The output voltage V1 of the amplifier 1 and the output voltage V2 of the amplifier 2 are supplied to a differential amplifier 3 to deliver the difference voltage V1-V2 of both output voltages. This difference voltage is amplified to be fed back in an adverse phase to the feedback point of the circuit 1. The distortion of the circuit 2 is extremely reduced, and the distortion of the voltages V1-V2 is regarded equal to the distortion of the circuit 1. Thus the internal distortion of the circuit 1 can be extremely reduced by such feedback as mentioned above. Furthermore the distortion can be suppressed even to a fluctuation of the load impedance.
JP7488380A 1980-06-05 1980-06-05 Amplifier Pending JPS572106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7488380A JPS572106A (en) 1980-06-05 1980-06-05 Amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7488380A JPS572106A (en) 1980-06-05 1980-06-05 Amplifier

Publications (1)

Publication Number Publication Date
JPS572106A true JPS572106A (en) 1982-01-07

Family

ID=13560197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7488380A Pending JPS572106A (en) 1980-06-05 1980-06-05 Amplifier

Country Status (1)

Country Link
JP (1) JPS572106A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748396U (en) * 1980-09-02 1982-03-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748396U (en) * 1980-09-02 1982-03-18
JPS645194Y2 (en) * 1980-09-02 1989-02-09

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