KR900008513Y1 - Initial overvoltage elimination circuit of color tv - Google Patents

Initial overvoltage elimination circuit of color tv Download PDF

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Publication number
KR900008513Y1
KR900008513Y1 KR2019870010874U KR870010874U KR900008513Y1 KR 900008513 Y1 KR900008513 Y1 KR 900008513Y1 KR 2019870010874 U KR2019870010874 U KR 2019870010874U KR 870010874 U KR870010874 U KR 870010874U KR 900008513 Y1 KR900008513 Y1 KR 900008513Y1
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KR
South Korea
Prior art keywords
circuit
color
sound
elimination circuit
transistor
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KR2019870010874U
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Korean (ko)
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KR890003949U (en
Inventor
강병규
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삼성전자 주식회사
안시환
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Priority to KR2019870010874U priority Critical patent/KR900008513Y1/en
Publication of KR890003949U publication Critical patent/KR890003949U/en
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Publication of KR900008513Y1 publication Critical patent/KR900008513Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

내용 없음.No content.

Description

컬러 TV의 사운드 초기 과도현상 제거회로Early transient cancellation circuit of color TV sound

제 1 도는 본 고안 사운드 초기 과도현상 제거 회로의 회로도.1 is a circuit diagram of a sound early transient cancellation circuit of the present invention.

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

BD : 브리지정류기 가 : 적분회로BD: Bridge Rectifier A: Integral Circuit

나 : 다링톤회로 FBT : 플라이백트랜스B: Darlington circuit FBT: flyback transformer

S-Amp : 사운드 증폭기 R1,R2: 저항S-Amp: Sound Amplifier R 1 , R 2 : Resistance

C1C2: 콘덴서C 1 C 2 : Capacitor

본 고안은 칼러 TV의 사운드 초기 과도현상 제거회로에 관한 것으로 특히 플라이백펄스와 다링톤회로를 이용하여 사운드 초기 과도현상을 제거할 수 있게한 칼라 TV의 사운드 초기 과도현상 제거회로에 관한 것이다.The present invention relates to an early transient cancellation circuit of a color TV, and more particularly, to an early transient cancellation circuit of a color TV that can eliminate an early transient phenomenon using a flyback pulse and a Darlington circuit.

종래의 칼러 TV에 있어서 컬러 TV를 전원 온시키면 전원전압은 사운드 앰프에 바로 인가되면서 사운드 앰프를 구동시키게 되어 스피커에서 퍽하는 소리가 나게되는 초기 과도현상이 발생하는 문제점을 가지고 있었다.In the conventional color TV, when powering on the color TV, the power voltage is directly applied to the sound amplifier, thereby driving the sound amplifier.

본 고안은 상기와 같은 문제점을 해결하기 위하여 사운드 앰프에 플라이백 트랜스의 2차측 펄스와 다링톤회로를 부가하여 텔레비젼 온시 내부회로가동된 다음 전원전압이 사운드앰프에 가해지도록 함으로써 초기에 발생되는 과도현상을 제거할 수 있게한 것이다.The present invention adds the secondary pulse of the flyback transformer and Darlington circuit to the sound amplifier in order to solve the above problems. To be removed.

이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

전원전압(Vcc)이 브리지 정류기(BD), 저항(R2), 콘덴서(C2)로 구성된 적분회로(가)를 통하여 사운드 증폭기(S-Amp)에 입력되고 이 사운드 증폭기(S-Amp)의 출력단자는 콘덴서(C3)를 통하여 스피커(SP)에 연결하여서 된 칼러의 사운드회로에 있어서 플라이백 트랜스(FBT)의 2차측은 다이오드(D1), 콘덴서(C1), 저항 (R1)을 통하여 트랜지스터(TR1)의 (TR2)로 구성된 다링톤회로(나)의 트랜지스터(TR1)의 베이스단자에 연결하고 그 트랜지스터(TR1)의 콜렉터단자는 상기 브리지정류기(BD)를 연결하여 상기 다링톤회로(가)의 출력단자는 상기 적분회로(가)에 연결하여서 된 것으로 상기와 같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.The power supply voltage (Vcc) is input to the sound amplifier (S-Amp) through an integrating circuit consisting of a bridge rectifier (BD), a resistor (R 2 ) and a capacitor (C 2 ), and this sound amplifier (S-Amp) In the color sound circuit, the output terminal of is connected to the speaker SP through the capacitor C 3. The secondary side of the flyback transformer FBT is a diode D 1 , a capacitor C 1 , and a resistor R 1. ), the collector terminal of the transistor (TR 1) of (TR 2) is a Darlington circuit (B) connected to the base terminal of the transistor (TR 1) and the transistor (TR 1), consisting of through the said bridge rectifier (BD) When connected to the output terminal of the Darlington circuit (A) is described by connecting to the integrating circuit (A) will be described the operation and effect of the present invention configured as described above.

먼저 TV의 전원을 온하게 되면 내부의 플라이백트랜스(FBT)가 동작하면 플라이백트랜스 2차측에 펄스가 발생하게 되고 이 펄스는 다이오드(D1) 및 바이어스 저항(R1)를 통하여 다링톤회로(나)의 트랜지스터(TR1)의 베이스단자에 하이신호가 걸리게 되므로 트랜지스터(TR1)는 온되게 되고 브리지정류기(BD)에 의하여 정류된 전압은 트랜지스터(TR1)의 콜렉터단자 및 에미터단자를 통하여 트랜지스터(TR2)의 베이스단자에 인가되게 되므로 트랜지스터(TR2)는 온되고 따라서 상기 정류된 전압은 트랜지스터(TR2)의 콜렉터단자 및 에미터단자 저항(R2), 콘덴서(C2)로 구성된 적분회로(가)를 통하여 사운드 증폭기(S-Amp)에 인가시켜 사운드 증폭기(S-Amp)을 동작시키게 되어 초기의 과도현상을 방지할 수 있게 되는 것이다.First, when the TV is turned on, when the internal flyback transformer (FBT) operates, a pulse is generated on the secondary side of the flyback transformer, and this pulse is generated through the diode D 1 and the bias resistor R 1 . (B) Since a high signal is applied to the base terminal of the transistor TR 1 , the transistor TR 1 is turned on and the voltage rectified by the bridge rectifier BD is a collector terminal and an emitter terminal of the transistor TR 1 . since the via to be applied to the base terminal of the transistor (TR 2) the transistor (TR 2) is turned on and thus the rectified voltage of the collector terminal and the emitter terminal resistor (R 2) of the transistor (TR 2), the capacitor (C 2 By applying the integrated circuit (A) to the sound amplifier (S-Amp) to operate the sound amplifier (S-Amp) it is possible to prevent the initial transient phenomenon.

상기 콘덴서(C1)은 평활용 콘덴서이다.The capacitor C 1 is a smoothing capacitor.

이상에서 설명한 바와 같은 본 고안은 TV의 사운드 증폭회로에 플라이백트랜스의 펄스와 다링톤회로를 이용하여 TV의 전원 온시 내부회로가 동작된 다음 전원전압이 사운드 증폭기에 인가되도록 함으로써 초기 전원전압 인가시 발생되는 과도현상을 제거할 수 있어 기기의 품질을 향상시키게 되는 효과가 있는 것이다.As described above, the present invention uses the pulse of the flyback transformer and the Darlington circuit to the sound amplification circuit of the TV. It is possible to eliminate the transients that occur, thereby improving the quality of the device.

Claims (1)

브리지정류기(BD), 적분회로(가), 사운드증폭기(S-Amp), 콘덴서(C3), 스피커(SP)로 구성된 칼러 TV의 사운드회로에 있어서 플라이백트랜스(FBT)의 2차측은 다이오드(D1), 콘덴서(C1), 저항(R1) 및 다링톤회로(나)를 통하여 상기 브리지정류기(BD)와 적분회로(가)에 연결하여서 된 것을 특징으로 하는 칼라 TV의 사운드 초기 과도현상 제거회로.In the sound circuit of color TV composed of bridge rectifier (BD), integrating circuit (A), sound amplifier (S-Amp), condenser (C 3 ) and speaker (SP), the secondary side of the flyback transformer (FBT) is a diode. (D 1 ), the sound initial of the color TV, characterized in that connected to the bridge rectifier (BD) and the integrating circuit (a) through the capacitor (C 1 ), resistor (R 1 ) and Darlington circuit (b) Transient elimination circuit.
KR2019870010874U 1987-07-03 1987-07-03 Initial overvoltage elimination circuit of color tv KR900008513Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870010874U KR900008513Y1 (en) 1987-07-03 1987-07-03 Initial overvoltage elimination circuit of color tv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870010874U KR900008513Y1 (en) 1987-07-03 1987-07-03 Initial overvoltage elimination circuit of color tv

Publications (2)

Publication Number Publication Date
KR890003949U KR890003949U (en) 1989-04-14
KR900008513Y1 true KR900008513Y1 (en) 1990-09-22

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KR2019870010874U KR900008513Y1 (en) 1987-07-03 1987-07-03 Initial overvoltage elimination circuit of color tv

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8273923B2 (en) 2007-06-01 2012-09-25 Solvay (Societe Anonyme) Process for manufacturing a chlorohydrin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8273923B2 (en) 2007-06-01 2012-09-25 Solvay (Societe Anonyme) Process for manufacturing a chlorohydrin

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Publication number Publication date
KR890003949U (en) 1989-04-14

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