JPS55143806A - Bias circuit of linear amplifier - Google Patents

Bias circuit of linear amplifier

Info

Publication number
JPS55143806A
JPS55143806A JP5143879A JP5143879A JPS55143806A JP S55143806 A JPS55143806 A JP S55143806A JP 5143879 A JP5143879 A JP 5143879A JP 5143879 A JP5143879 A JP 5143879A JP S55143806 A JPS55143806 A JP S55143806A
Authority
JP
Japan
Prior art keywords
potential
capacitor
input end
precharged
amplifier
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
JP5143879A
Other languages
Japanese (ja)
Inventor
Noriji Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5143879A priority Critical patent/JPS55143806A/en
Publication of JPS55143806A publication Critical patent/JPS55143806A/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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A

Landscapes

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

Abstract

PURPOSE:To improve voltage response by providing a capacitor, which is precharged from the feeding start time for an amplifying means by a bias means, and a capacitor which is precharged until arrival at a prescribed precharge potential. CONSTITUTION:Charging current 12 is flowed to the second capacitor C2 until the potential of noninversion input end (d) of amplifier 10 approaches closely bias potential VS, and the first capacitor C1 is precharged with current 11 in a speed equal to or higher than the charging speed of capacitor C2 by precharge means 14 according to change of the potential of input end (d). In this case, the potential of output end (e) is almost zero as long as the potential of noninversion input end (d) of the amplifier is less than the potential of inversion input end (c). When the potential of input end (d) approaches closely potential VS not to flow current 12, precharging for capacitor C1 is stopped, and the potential of output end (e) rises rapidly toward VS. Thus, capacitor C1 is charged rapidly, so that power response is improved.
JP5143879A 1979-04-27 1979-04-27 Bias circuit of linear amplifier Pending JPS55143806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5143879A JPS55143806A (en) 1979-04-27 1979-04-27 Bias circuit of linear amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5143879A JPS55143806A (en) 1979-04-27 1979-04-27 Bias circuit of linear amplifier

Publications (1)

Publication Number Publication Date
JPS55143806A true JPS55143806A (en) 1980-11-10

Family

ID=12886927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5143879A Pending JPS55143806A (en) 1979-04-27 1979-04-27 Bias circuit of linear amplifier

Country Status (1)

Country Link
JP (1) JPS55143806A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841653A (en) * 1971-09-27 1973-06-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841653A (en) * 1971-09-27 1973-06-18

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