KR960020344A - Pop Noise Reduction Circuit of Woofer Sound System - Google Patents

Pop Noise Reduction Circuit of Woofer Sound System Download PDF

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Publication number
KR960020344A
KR960020344A KR1019940030181A KR19940030181A KR960020344A KR 960020344 A KR960020344 A KR 960020344A KR 1019940030181 A KR1019940030181 A KR 1019940030181A KR 19940030181 A KR19940030181 A KR 19940030181A KR 960020344 A KR960020344 A KR 960020344A
Authority
KR
South Korea
Prior art keywords
woofer
switching
woofer sound
pop noise
switching unit
Prior art date
Application number
KR1019940030181A
Other languages
Korean (ko)
Inventor
고명기
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940030181A priority Critical patent/KR960020344A/en
Publication of KR960020344A publication Critical patent/KR960020344A/en

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Abstract

본 발명은 우퍼사운드의 온/오프시에 발생하는 교류성분으로 인한 직류레벨의 변화에 의해 야기되는 팝노이즈를 제거함으로서 우퍼절환시에 스피커의 소음발생을 방지할 수 있도록 한 우퍼사운드 장치의 팝노이즈 제거회로에 관한 것으로, 스위칭부를 이루는 트랜지스터의 콜렉터 출력과 우퍼사운드 증폭기의 입력측 사이에 콘덴서와 저항으로 구성되는 전압제어부를 부가하여 구성함으로서, 보다 양질의 사운드 출력을 실현한 것이다.The present invention eliminates pop noise caused by a change in the DC level due to an alternating current component generated on / off of a woofer sound, thereby preventing the noise of the speaker during woofer switching. The present invention relates to a removal circuit, by adding a voltage control unit composed of a capacitor and a resistor between a collector output of a transistor constituting a switching unit and an input side of a woofer sound amplifier, thereby realizing a better sound output.

Description

우퍼사운드 장치의 팝노이즈 제거회로Pop Noise Reduction Circuit of Woofer Sound System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 바람직한 실시예에 따른 우퍼사운드 장치의 팝노이즈 제거회로에 대한 블록구성도,1 is a block diagram of a pop noise canceling circuit of a woofer sound device according to a preferred embodiment of the present invention;

제2도는 제1도에 도시된 회로에 있어서 스위칭부, 전압제어부 및 입력단자부의 상세회로도.2 is a detailed circuit diagram of a switching unit, a voltage control unit and an input terminal unit in the circuit shown in FIG.

Claims (2)

마이컴으로부터의 제어신호에 의거하여 우퍼 온/오프를 스위칭하는 스위칭부와, 이 스위칭부의 스위칭 동작에 의해 입력단자를 통해 입력되는 음의 우퍼사운드 증폭기로의 입력을 제어하는 우퍼사운드 장치에 있어서, 상기 스위칭부의 스위칭시에 발생하는 순간적인 교류성분의 전압이 상기 우퍼사운드 증폭기에 인가되는 것을 차단하기 위한 전압 차단수단을 더 포함하여 이루어진 것을 특징으로 하는 우퍼사운드 장치의 팝노이즈 제거회로.A switching unit for switching woofer on / off based on a control signal from a microcomputer, and a woofer sound device for controlling an input to a negative woofer sound amplifier input through an input terminal by a switching operation of the switching unit. And a voltage blocking means for blocking the instantaneous AC component voltage generated during switching of the switching unit from being applied to the woofer sound amplifier. 제1항에 있어서, 상기 전압 차단수단은 상기 스위칭부와 접지와의 사이에 병렬접속되는 콘덴서와 저항으로 구성된 것을 특징으로 하는 우퍼사운드 장치의 팝노이즈 제거회로.The pop noise canceling circuit of claim 1, wherein the voltage blocking unit comprises a capacitor and a resistor connected in parallel between the switching unit and the ground. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940030181A 1994-11-17 1994-11-17 Pop Noise Reduction Circuit of Woofer Sound System KR960020344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940030181A KR960020344A (en) 1994-11-17 1994-11-17 Pop Noise Reduction Circuit of Woofer Sound System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940030181A KR960020344A (en) 1994-11-17 1994-11-17 Pop Noise Reduction Circuit of Woofer Sound System

Publications (1)

Publication Number Publication Date
KR960020344A true KR960020344A (en) 1996-06-17

Family

ID=66648559

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940030181A KR960020344A (en) 1994-11-17 1994-11-17 Pop Noise Reduction Circuit of Woofer Sound System

Country Status (1)

Country Link
KR (1) KR960020344A (en)

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