KR900002548A - Volume control circuit - Google Patents

Volume control circuit Download PDF

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Publication number
KR900002548A
KR900002548A KR1019880009334A KR880009334A KR900002548A KR 900002548 A KR900002548 A KR 900002548A KR 1019880009334 A KR1019880009334 A KR 1019880009334A KR 880009334 A KR880009334 A KR 880009334A KR 900002548 A KR900002548 A KR 900002548A
Authority
KR
South Korea
Prior art keywords
terminal
class
control circuit
volume control
resistor
Prior art date
Application number
KR1019880009334A
Other languages
Korean (ko)
Other versions
KR900008763B1 (en
Inventor
이욱원
신영호
Original Assignee
강진구
삼성반도체통신 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 강진구, 삼성반도체통신 주식회사 filed Critical 강진구
Priority to KR1019880009334A priority Critical patent/KR900008763B1/en
Publication of KR900002548A publication Critical patent/KR900002548A/en
Application granted granted Critical
Publication of KR900008763B1 publication Critical patent/KR900008763B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices

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  • Control Of Amplification And Gain Control (AREA)

Abstract

내용 없음.No content.

Description

음향 조절회로Sound control circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명 음량조절회로의 구성도.4 is a block diagram of the volume control circuit of the present invention.

제5도는 본 발명 음량조절회로의 이득조절회로 상세도.5 is a detailed view of the gain control circuit of the present invention volume control circuit.

제6도 본 발명 음량조절회로의 A급 특성 구동회로 상세도.6 is a detailed view of a class A characteristic driving circuit of the present invention volume control circuit.

Claims (1)

가변저항에 접속된 일측단자(a)와 저항(RE1)을 통하여 접지된 타측단자(b)를 단속하는 스위치(SW1)의 고정단자에 A급 특성 구동회로(F)가 접속되고, 가변 저항에 접속된 일측단자(a)와 저항(RE2)를 통하여 접지된 타측단자(C)를 단속하는 스위치(SW2)의 고정단자에 B급 특성 구동회로(G)가 접속되며, 상기의 A급 특성 구동회로(F)와 B급 특성 구동회로(G)는 신호 입력단자(VIN) 및 신호 출력단자(Vout)가 접속되어 전류소오스(IO)에 의해 이득이 결정되어지는 이득조절회로(D)에 접속 구성됨을 특징으로 하는 음량조절회로.A class A characteristic drive circuit F is connected to the fixed terminal of the switch SW1 for controlling one terminal a connected to the variable resistor and the other terminal b grounded through the resistor RE1, and connected to the variable resistor. The class B characteristic drive circuit G is connected to the fixed terminal of the switch SW2 which controls the one terminal a connected to the other terminal C grounded via the resistor RE2 connected, and the class A characteristic drive circuit mentioned above. The furnace F and the class B characteristic driving circuit G are connected to a signal input terminal V IN and a signal output terminal V out , and a gain adjusting circuit D whose gain is determined by the current source IO. Volume control circuit, characterized in that connected to. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880009334A 1988-07-25 1988-07-25 Sound volume control circuit KR900008763B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880009334A KR900008763B1 (en) 1988-07-25 1988-07-25 Sound volume control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880009334A KR900008763B1 (en) 1988-07-25 1988-07-25 Sound volume control circuit

Publications (2)

Publication Number Publication Date
KR900002548A true KR900002548A (en) 1990-02-28
KR900008763B1 KR900008763B1 (en) 1990-11-29

Family

ID=19276385

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880009334A KR900008763B1 (en) 1988-07-25 1988-07-25 Sound volume control circuit

Country Status (1)

Country Link
KR (1) KR900008763B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100337934B1 (en) * 1999-06-03 2002-05-24 임인순 Additives for waste water treatment, its manufacturing method and usage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100337934B1 (en) * 1999-06-03 2002-05-24 임인순 Additives for waste water treatment, its manufacturing method and usage

Also Published As

Publication number Publication date
KR900008763B1 (en) 1990-11-29

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