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KR900008093Y1 - Eleminating trunsient phenomena circuit for audio system - Google Patents

Eleminating trunsient phenomena circuit for audio system Download PDF

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Publication number
KR900008093Y1
KR900008093Y1 KR2019870010999U KR870010999U KR900008093Y1 KR 900008093 Y1 KR900008093 Y1 KR 900008093Y1 KR 2019870010999 U KR2019870010999 U KR 2019870010999U KR 870010999 U KR870010999 U KR 870010999U KR 900008093 Y1 KR900008093 Y1 KR 900008093Y1
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South Korea
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capacitor
circuit
speaker
spk
integrated circuit
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KR2019870010999U
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KR890003733U (en
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윤경하
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삼성전자 주식회사
안시환
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    • 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

내용 없음.No content.

Description

음향기기의 과도현상 제거회로Transient elimination circuit of sound equipment

제 1 도는 종래의 음향기기의 과도현상 제거회로의 회로도.1 is a circuit diagram of a transient cancellation circuit of a conventional acoustic apparatus.

제 2 도는 본고안 음향기기의 과도현상 제거회로의 회로도.2 is a circuit diagram of a transient removal circuit of the acoustic device of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

SW1: 전원파워스위치 가 : 음향검파부SW 1 : Power switch A: Acoustic detector

R1, R2: 저항 IC : 오디오증폭기용 집적회로R 1 , R 2 : Resistor IC: Integrated circuit for audio amplifier

C1: 파워 온 오프시 과도현상방지용 커패시터C 1 : transient prevention capacitor at power on and off

C2: 감결합커패시터 Spk : 청취용스피커C 2 : Decoupling capacitor Spk: Listening speaker

본 고안은 오디오기기에 있어서 오디오출력부와 스피커사이에 감결합커패시터(decoupling Capacitor)를 연결하여 오디오 증폭기용 집적회로에 충방전으로 인한 과도현상을 제거하기 위한 음향기기의 과도현상 제거회로에 관한것이다.The present invention relates to a transient removal circuit of an audio device for removing a transient caused by charge and discharge in an integrated circuit for an audio amplifier by connecting a decoupling capacitor between an audio output unit and a speaker in an audio device. .

종래에는 제 1 도에 도시한 바와같이 입력전압(B+)을 오디오증폭기용 집적회로(IC) 및 커패시터(C)를 통하여 스피커(Spk)에 연결함으로써 오디오 증폭기용 집적회로에 인한 과도현상을 제거하도록 되어있었다.Conventionally, as illustrated in FIG. 1, the transient voltage caused by the integrated circuit for an audio amplifier is eliminated by connecting the input voltage B + to the speaker Spk through the integrated circuit IC and the capacitor C for an audio amplifier. I was supposed to.

그러나 이와같은 종래의 회로는 오디오 앰프용 집적회로(IC)에 순간 전압이 인가되면 커패시터(C1)에 의한 충방전으로 인해 스피커(Spk)에 과도현상이 나타나므로 스위치의 온 오프시 "퍽"하는 소리가 나는 등 실사용자로 하여금 불쾌감을 초래하고 기기가 훼손될수도 있는 문제점을 가지고 있었다.However, in the conventional circuit, when a momentary voltage is applied to the integrated circuit IC for the audio amplifier, a transient phenomenon occurs in the speaker Spk due to charging and discharging by the capacitor C1. There was a problem that the actual user may cause discomfort and damage to the device, such as sound.

따라서 본 고안은 상기와 같은 문제점을 해결하기 위하여 오디오출력부와 스피커(Spk)사이에 감결합 커패시터(decoupling Capactor)를 연결하여 스피커(Spk)로 과도전류가 흐르지 않도록 함으로써 과도현상을 방지할 수 있도록 한 것으로 단지 1개의 커패시터를 추가하여 연결하였으므로 원가절감면에서도 효과적이며 기존시스템(System)에 쉽게 부착할 수 있어 구성을 용이하게 한 것으로 이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다.Therefore, in order to solve the above problems, the present invention connects a decoupling capacitor between the audio output unit and the speaker Spk so that the transient current does not flow to the speaker Spk to prevent the transient phenomenon. In addition, since only one capacitor is added and connected, it is also effective in cost reduction and easy attachment to an existing system. The present invention will be described in detail with reference to the accompanying drawings as follows.

스위치(SW1) 접점단자(A)에는 전원(B+)을 접속하고 스위치(SW1) 접점단자(B)는 저항(R1) (R2)을 통하여 오디오 앰프용 집적회로(IC)의 반전단자와 연결하며 상기 오디오 앰프용 집적회로(IC)의 비반전단자에는 음향검파부(가)의 출력단을 연결하고 오디오앰프용 집적회로(IC)의 출력단을 스피커(Spk)의 1차 코일단에 연결하고 스피커(Spk)의 2차 코일단은 커패시터(C1)를 통하여 상기 스위치(SW1) 접점단자(B)와 연결함돠 동시에 커패시터(C2)와 연결하여 된 것으로 상기와 같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.A power supply (B + ) is connected to the switch (SW1) contact terminal (A), and the switch (SW1) contact terminal (B) is connected to an inverting terminal of an integrated circuit (IC) for an audio amplifier through a resistor (R1) (R2). The output terminal of the acoustic detector (A) is connected to the non-inverting terminal of the integrated circuit (IC) for the audio amplifier, and the output terminal of the integrated circuit (IC) for the audio amplifier is connected to the primary coil terminal of the speaker (Spk). The secondary coil terminal of (Spk) is connected to the switch (SW 1 ) contact terminal (B) through the capacitor (C 1 ) and at the same time connected to the capacitor (C 2 ), the effect of the present invention configured as described above When described as follows.

스위치(SW1)를 온하게 되면 입력전원(B+)은 저항(R1)(R2)을 통하여 오디오앰프용 집적회로(SW1)의 반전단자에 입력되는 한편 커패시터(C1) (C2)를 통하여 충전하게 되는바 커패시터에 순간전압을 인가하게 되면 단락(Short)상태와 같이 되는 특성을 가지고 있으므로 커패시터(C2) (C1)를 통하여 먼저 충전하게 된다.When the switch SW 1 is turned on, the input power source B + is input to the inverting terminal of the integrated circuit SW 1 for the audio amplifier through the resistors R 1 and R 2 , while the capacitor C 1 and C 2 ) When the instantaneous voltage is applied to the capacitor, it has the characteristic of being short-circuit (Short) state, so it is charged first through the capacitor (C 2 ) (C 1 ).

따라서 오디오앰프용 집적회로(IC)를 통하여 흐르던 전류(I0)는 차단되어 스피커(Spk)에는 과전류가 흐르지 않게 되므로 과도현상이 발생하지 않게 되는 것이다.Therefore, the current I 0 flowing through the integrated circuit IC for the audio amplifier is cut off so that the overcurrent does not flow in the speaker Spk so that no transient phenomenon occurs.

또한 스위치(SW1)를 오프하게 되면 커패시터(C2)에서 방전된 전류(IX)는 커패시터(C1)를 통하여 저항(R2)으로 흐르게 되므로 역시 스피커(Spk)에는 과전류가 흐르지 않게 되어 과도현상이 발생하지 않게 되는것이다.In addition, when the off switch (SW 1) and the discharge from the capacitor (C 2) a current (I X) is there is no over-current flows since the flow in the resistance (R 2) via a capacitor (C 1) is also a speaker (Spk) Transients do not occur.

이상에서 설명한 바와같이 본 고안은 오디오 출력부와 스피커(Spk)사이에 단지 감결함 커패시터(decoupling Capacitor) 1개를 추가하여 구성함으로써 스피커의 과도현상을 억제할 수 있어 원가절감면에서도 효과적이고 기존의 시스템(System)에 부착이 용이한 효과를 제공해 줄 수 있는 것이다.As described above, the present invention is made by adding only one decoupling capacitor between the audio output unit and the speaker (Spk) to suppress the transient of the speaker, which is effective in terms of cost reduction and It can provide an easy effect to attach to the system (System).

Claims (1)

스위치(SW1)와 저항(R1)오디오 앰프용 집적회로(IC)음향검파부(가) 커패시터(C1) 스피커(Spk)로 구성된 음향기기의 과도현상 제거회로 과도현상 방지회로에 있어서 오디오 앰프용 집적회로(IC)의 출력단은 스피커(Spk) 1차코일단에 연결하며 스피커(Spk) 2차 코일단은 커패시터(C1)를 통하여 스위치(SW1) 접점단자(B1) 저항(R2)을 연결함과 아울러 커패시터(C2)를 연결 구성한것을 특징으로 한 음향기기의 과도현상 제거회로.Audio IC in Transient Reduction Circuit of Transmitter of Sound Equipment Composed of Switch (SW 1 ) and Resistor (R 1 ) Audio Amplifier Integrated Circuit (IC) Audio Amplifier (A) Capacitor (C 1 ) Speaker (Spk) The output terminal of the integrated circuit (IC) for the amplifier is connected to the primary coil stage of the speaker (Spk), and the secondary coil terminal of the speaker (Spk) is connected to the switch (SW 1 ) contact terminal (B 1 ) through the capacitor (C 1 ). 2 ) is connected to the capacitor (C 2 ) and configured to remove the transient phenomenon of the acoustic device.
KR2019870010999U 1987-07-06 1987-07-06 Eleminating trunsient phenomena circuit for audio system Expired KR900008093Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870010999U KR900008093Y1 (en) 1987-07-06 1987-07-06 Eleminating trunsient phenomena circuit for audio system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870010999U KR900008093Y1 (en) 1987-07-06 1987-07-06 Eleminating trunsient phenomena circuit for audio system

Publications (2)

Publication Number Publication Date
KR890003733U KR890003733U (en) 1989-04-13
KR900008093Y1 true KR900008093Y1 (en) 1990-09-03

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KR2019870010999U Expired KR900008093Y1 (en) 1987-07-06 1987-07-06 Eleminating trunsient phenomena circuit for audio system

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