KR880018681U - Automatic level adjustment circuit of VHF wideband power amplifier - Google Patents

Automatic level adjustment circuit of VHF wideband power amplifier

Info

Publication number
KR880018681U
KR880018681U KR2019870002831U KR870002831U KR880018681U KR 880018681 U KR880018681 U KR 880018681U KR 2019870002831 U KR2019870002831 U KR 2019870002831U KR 870002831 U KR870002831 U KR 870002831U KR 880018681 U KR880018681 U KR 880018681U
Authority
KR
South Korea
Prior art keywords
power amplifier
adjustment circuit
level adjustment
automatic level
wideband power
Prior art date
Application number
KR2019870002831U
Other languages
Korean (ko)
Other versions
KR890007293Y1 (en
Inventor
허영국
Original Assignee
동양정밀공업 주식회사
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 동양정밀공업 주식회사 filed Critical 동양정밀공업 주식회사
Priority to KR2019870002831U priority Critical patent/KR890007293Y1/en
Publication of KR880018681U publication Critical patent/KR880018681U/en
Application granted granted Critical
Publication of KR890007293Y1 publication Critical patent/KR890007293Y1/en

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
    • H03F1/0211—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 supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
KR2019870002831U 1987-03-05 1987-03-05 Auto control circuit of power amplifier output level KR890007293Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870002831U KR890007293Y1 (en) 1987-03-05 1987-03-05 Auto control circuit of power amplifier output level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870002831U KR890007293Y1 (en) 1987-03-05 1987-03-05 Auto control circuit of power amplifier output level

Publications (2)

Publication Number Publication Date
KR880018681U true KR880018681U (en) 1988-10-29
KR890007293Y1 KR890007293Y1 (en) 1989-10-25

Family

ID=19260324

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870002831U KR890007293Y1 (en) 1987-03-05 1987-03-05 Auto control circuit of power amplifier output level

Country Status (1)

Country Link
KR (1) KR890007293Y1 (en)

Also Published As

Publication number Publication date
KR890007293Y1 (en) 1989-10-25

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19931021

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee