JPS5720006A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS5720006A
JPS5720006A JP9539480A JP9539480A JPS5720006A JP S5720006 A JPS5720006 A JP S5720006A JP 9539480 A JP9539480 A JP 9539480A JP 9539480 A JP9539480 A JP 9539480A JP S5720006 A JPS5720006 A JP S5720006A
Authority
JP
Japan
Prior art keywords
amplifier
distortion
output
circuit
signal
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
JP9539480A
Other languages
Japanese (ja)
Inventor
Fumio Hori
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9539480A priority Critical patent/JPS5720006A/en
Publication of JPS5720006A publication Critical patent/JPS5720006A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To realize an amplifier, whose distortion rate is extremely low, easily by leading a distorted input signal out of an amplification stage in a closed circuit and by adding this signal to a feedback circuit in a negative feedback type amplifier so that distortion in an output signal is canceled. CONSTITUTION:For example, in a negative feedback type amplifier composed of an initial-stage amplifier 3, an output-stage amplifier 5 and a feedback circuit 7, the amplifier 3 has no distortion and the amplifier 5 has distortion. In this case, an input signal to the amplifier 5 is inverted by an inverting amplifier 8, whose output is added to an output signal in an adding circuit 9, thereby extracting only the distortion component. The voltage of this distortion component is applied to the inverted input terminal of the amplifier 3 together with the output of the circuit 7 to eliminate the output distortion completely. Consequently, an amplifier with an extremely low distortion rate which is hard to realize by nagative feedback technique is realized easily.
JP9539480A 1980-07-11 1980-07-11 Amplifier Pending JPS5720006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9539480A JPS5720006A (en) 1980-07-11 1980-07-11 Amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9539480A JPS5720006A (en) 1980-07-11 1980-07-11 Amplifier

Publications (1)

Publication Number Publication Date
JPS5720006A true JPS5720006A (en) 1982-02-02

Family

ID=14136427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9539480A Pending JPS5720006A (en) 1980-07-11 1980-07-11 Amplifier

Country Status (1)

Country Link
JP (1) JPS5720006A (en)

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