JPS5768910A - Power amplifier - Google Patents

Power amplifier

Info

Publication number
JPS5768910A
JPS5768910A JP14464280A JP14464280A JPS5768910A JP S5768910 A JPS5768910 A JP S5768910A JP 14464280 A JP14464280 A JP 14464280A JP 14464280 A JP14464280 A JP 14464280A JP S5768910 A JPS5768910 A JP S5768910A
Authority
JP
Japan
Prior art keywords
amplifier
output
amplification factor
negative feedback
main
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
JP14464280A
Other languages
Japanese (ja)
Inventor
Yasuhiro Ishizaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14464280A priority Critical patent/JPS5768910A/en
Publication of JPS5768910A publication Critical patent/JPS5768910A/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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To form a power amplifier with less distorted component, by detecting the distorted components of opposite polarity produced by negative feedback effect of a main amplifier and synthesizing this at output side. CONSTITUTION:A main amplifier forms a noninverting type negative feedback amplifier consisting of a voltage amplifier 5 and a current amplifier 6 with the amplification factor unity. This main amplifier amplifies a signal of a signal source 1 and supplies power to a load 7 via an output synthesis impedance 8. On the other hand, the signal of a signal source 1 is inputted to an inverting input terminal of a current amplifier 16 with the unity of a amplification factor via a negative feedback voltage amplifier 15 having the same amplification factor as the amplifier 5. Since the output of the amplifier 5 is inputted to the noninverting input terminal of the amplifier 16, the distortion component of opposite polarity produced at the main amplifier from the amplifier 16 is detected and synthesized with the output of the impedance 8 via the output synthesis impedance. Thus, a power amplifier with small distorted component can be formed.
JP14464280A 1980-10-16 1980-10-16 Power amplifier Pending JPS5768910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14464280A JPS5768910A (en) 1980-10-16 1980-10-16 Power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14464280A JPS5768910A (en) 1980-10-16 1980-10-16 Power amplifier

Publications (1)

Publication Number Publication Date
JPS5768910A true JPS5768910A (en) 1982-04-27

Family

ID=15366804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14464280A Pending JPS5768910A (en) 1980-10-16 1980-10-16 Power amplifier

Country Status (1)

Country Link
JP (1) JPS5768910A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108858A (en) * 1974-01-17 1975-08-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108858A (en) * 1974-01-17 1975-08-27

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