KR890020138U - Op 앰프의 출력 제어회로 - Google Patents

Op 앰프의 출력 제어회로

Info

Publication number
KR890020138U
KR890020138U KR2019880004616U KR880004616U KR890020138U KR 890020138 U KR890020138 U KR 890020138U KR 2019880004616 U KR2019880004616 U KR 2019880004616U KR 880004616 U KR880004616 U KR 880004616U KR 890020138 U KR890020138 U KR 890020138U
Authority
KR
South Korea
Prior art keywords
amplifier
control circuit
output control
output
circuit
Prior art date
Application number
KR2019880004616U
Other languages
English (en)
Other versions
KR930004653Y1 (ko
Inventor
최경환
Original Assignee
주식회사 금성사
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 주식회사 금성사 filed Critical 주식회사 금성사
Priority to KR2019880004616U priority Critical patent/KR930004653Y1/ko
Publication of KR890020138U publication Critical patent/KR890020138U/ko
Application granted granted Critical
Publication of KR930004653Y1 publication Critical patent/KR930004653Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/005—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using discontinuously variable devices, e.g. switch-operated
KR2019880004616U 1988-03-31 1988-03-31 Op 앰프의 출력 제어회로 KR930004653Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880004616U KR930004653Y1 (ko) 1988-03-31 1988-03-31 Op 앰프의 출력 제어회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880004616U KR930004653Y1 (ko) 1988-03-31 1988-03-31 Op 앰프의 출력 제어회로

Publications (2)

Publication Number Publication Date
KR890020138U true KR890020138U (ko) 1989-10-05
KR930004653Y1 KR930004653Y1 (ko) 1993-07-22

Family

ID=19273794

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880004616U KR930004653Y1 (ko) 1988-03-31 1988-03-31 Op 앰프의 출력 제어회로

Country Status (1)

Country Link
KR (1) KR930004653Y1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020033454A (ko) * 2002-04-17 2002-05-06 백태선 동화상 전자식 디스플레이장치를 내장시킨 칠판

Also Published As

Publication number Publication date
KR930004653Y1 (ko) 1993-07-22

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