JPS56160114A - Biasing circuit of electric power amplifier - Google Patents

Biasing circuit of electric power amplifier

Info

Publication number
JPS56160114A
JPS56160114A JP6025680A JP6025680A JPS56160114A JP S56160114 A JPS56160114 A JP S56160114A JP 6025680 A JP6025680 A JP 6025680A JP 6025680 A JP6025680 A JP 6025680A JP S56160114 A JPS56160114 A JP S56160114A
Authority
JP
Japan
Prior art keywords
electric power
power amplifier
trs
fets
currents
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.)
Granted
Application number
JP6025680A
Other languages
Japanese (ja)
Other versions
JPS6313568B2 (en
Inventor
Manfuredo.Shiyuwarutsu
Tadashi Higuchi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP6025680A priority Critical patent/JPS56160114A/en
Publication of JPS56160114A publication Critical patent/JPS56160114A/en
Publication of JPS6313568B2 publication Critical patent/JPS6313568B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/516—Some amplifier stages of an amplifier use supply voltages of different value

Landscapes

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

Abstract

PURPOSE:To eliminate the nonlinear distortion, by giving a control to the bias of the FET forming an SEPP circuit in accordance with the current which flows through a transistor. CONSTITUTION:The input signal supplied to a terminal 1 is applied to the gates of FETs 3 and 4 that form an SEPP circuit. Transistors(TR) 30 and 32 forming a voltage detecting circuit detect the voltage drop at both the ends of resistors 7 and 8, and the currents of TRs 25a and 27a are controlled by the detection output. A control is given so that the currents of the TRs 25a and 27a increase with an increment of the current flowing through the FET4. As a result, the FETs 3 and 4 are never cut off to ensure a smooth connection between the upper and lower waveforms of the current flowing through a load 9.
JP6025680A 1980-05-07 1980-05-07 Biasing circuit of electric power amplifier Granted JPS56160114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6025680A JPS56160114A (en) 1980-05-07 1980-05-07 Biasing circuit of electric power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6025680A JPS56160114A (en) 1980-05-07 1980-05-07 Biasing circuit of electric power amplifier

Publications (2)

Publication Number Publication Date
JPS56160114A true JPS56160114A (en) 1981-12-09
JPS6313568B2 JPS6313568B2 (en) 1988-03-26

Family

ID=13136901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6025680A Granted JPS56160114A (en) 1980-05-07 1980-05-07 Biasing circuit of electric power amplifier

Country Status (1)

Country Link
JP (1) JPS56160114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09508030A (en) * 1994-01-19 1997-08-19 リルジェダール、グンナー Rope drum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09508030A (en) * 1994-01-19 1997-08-19 リルジェダール、グンナー Rope drum

Also Published As

Publication number Publication date
JPS6313568B2 (en) 1988-03-26

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