KR880006854A - Common Output Stage Circuit for Intermediate Amplification System for FM and AM Receivers - Google Patents

Common Output Stage Circuit for Intermediate Amplification System for FM and AM Receivers Download PDF

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Publication number
KR880006854A
KR880006854A KR860010015A KR860010015A KR880006854A KR 880006854 A KR880006854 A KR 880006854A KR 860010015 A KR860010015 A KR 860010015A KR 860010015 A KR860010015 A KR 860010015A KR 880006854 A KR880006854 A KR 880006854A
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KR
South Korea
Prior art keywords
transistor
stage
output
voltage
current
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KR860010015A
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Korean (ko)
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KR900002329B1 (en
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정덕영
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강진구
삼성반도체통신 주식회사
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Priority to KR1019860010015A priority Critical patent/KR900002329B1/en
Publication of KR880006854A publication Critical patent/KR880006854A/en
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Publication of KR900002329B1 publication Critical patent/KR900002329B1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/1607Supply circuits
    • H04B1/1615Switching on; Switching off, e.g. remotely
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/1646Circuits adapted for the reception of stereophonic signals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

내용 없음No content

Description

FM 및 AM수신기용 중간증폭시스템의 공통출력단 회로Common output stage circuit of intermediate amplifier system for FM and AM receivers

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

제1도는 본 발명에 의한 최로의 블럭도.1 is a block diagram according to the present invention.

Claims (4)

FM 및 AM선택스위치(8)의 온, 오프에 따라 FM 중간증폭단(6)에 바이어스를 공급하기 위한 FM단전류원(7)과 AM중간증폭단(5)에 바이어스를 공급하기 위한 AM단 전류원(4) 중의 어느 하나를 선택적으로 구동하는 제1 및 제2출력신호(K1)(K2)를 발생하는 전자스위치(1)와, FM 또는 AM선택상태를 발광디이오드(D1)(D2)로 표시하기 위해 상기한 전자스위치(1)의 제1출력신호(K1)를 체크하여 발광다이오드(D1)(D2)를 구동하는 발광 다이오드구동단(2)과, 상기한 전자스위치(1)의 제2출력신호(K2)를 체크하여 FM 중간 증폭단(6) 및 AM중간증폭단(5) 중의 어느 하나의 출력신호를 선택하여 하나의 공통출력단(OUT)를 통하여 출력하는 아날로그스위치(3)등을 포함하여 구성되는 것을 특징으로 하는 FM 및 AM수신기용 중간증폭시스템의 공통출력단 회로.The FM stage current source 7 for supplying the bias to the FM intermediate amplifier stage 6 and the AM stage current source 4 for supplying the bias to the AM intermediate amplifier stage 5 according to the FM and AM selection switches 8 on and off. Electronic switch 1 for generating the first and second output signals K 1 and K 2 for selectively driving any one of the < RTI ID = 0.0 >),< / RTI > ) by checking the first output signal (K 1) of the electronic switch (1) for displaying a light emitting diode (D 1) (D 2), the LED driving stage (2) and the electronic switch for driving the Analog switch which checks the second output signal K 2 of (1) and selects one output signal of the FM intermediate amplifier stage 6 and the AM intermediate amplifier stage 5 and outputs it through one common output stage OUT. (3) A common output stage circuit of an intermediate amplification system for FM and AM receivers, comprising: 제1항에 있어서, 상기한 전자스위치(1)는 전원전압(Vcc)에 의하여 정전류를 발생하는 정전류원(Ir1)(Ir2)과, FM 및 AM선택스위치(8)의 오프시에 도통되는 트랜지스터군(Q1-Q2)과, FM 및 AM 선택스위치(8)의 온시에 도통되는 트랜지스터(Q4-5)등을 포함하여 이루어지는 것을 특징으로 하는 FM 및 AM수신기용 중간증폭시스템의 공통출력단 회로.The electronic switch (1) according to claim 1, wherein the electronic switch (1) is turned on when the constant current source (Ir 1 ) (Ir 2 ) generating a constant current by the power supply voltage (Vcc) and the FM and AM selection switch (8) are turned off. a medium amplification system for FM and AM receiver, characterized in that comprises a - (5 Q 4) transistors, such as the group (Q 1 -Q 2) and, FM and AM selection switch 8 turns on the transistor that is conducting of the Common output stage circuit. 제1항에 있어서, 상기한 발광다이오드 구동단(2)의 구성은, 상기한 전자스위치(1)의 제1 출력신호(K1)에 따라 온, 오프되는 것에 의해 저항(R3)을 통하여 인가되는 전원(Vcc)의 전류를 발광다이오드(D1) 또는 (D2)축으로 흐르게 하는 트랜지스터(Q6)와, 상기한 트랜지스터(Q6)가 온 될때 발광다이오드(D2)가 발광하지 않도록 트랜지스터(Q6)의 도통시의 콜렉터-에미터 전압보다 큰 일정전압을 방광다이오드(D2)에 부여하는 다이오드(Q7) 등으로 이루어지는 것을 특징으로 하는 FM 및 AM수신기용 중간 증폭시스템의 공통출력단 회로.The light emitting diode driving stage 2 is configured to be turned on or off in accordance with the first output signal K 1 of the electronic switch 1 through the resistor R 3 . The transistor Q 6 which causes the current of the applied power supply Vcc to flow to the light emitting diode D 1 or D 2 axis, and the light emitting diode D 2 does not emit light when the transistor Q 6 is turned on. And a diode (Q 7 ) for imparting a constant voltage to the bladder diode (D 2 ), which is greater than the collector-emitter voltage at the time of conduction of the transistor (Q 6 ), of the intermediate amplification system for FM and AM receivers. Common output stage circuit. 제1항에 있어서, 상기한 아날로그스위치(3)의 구성은, 전원전압(Vcc)을 기준전압으로 하여 상기한 AM 중 간증폭단(5)의 출력신호를 차동증폭하는 트랜지스터(Q8, Q9)와, 전운전압(Vcc)을 기준전압으로 하여 상기한 FM중간증폭단(6)의 출력신호를 차동증폭하는 트랜지스터(Q10, Q11)와, 상기한 전자스위치(1)의 제2출력(K2)을 소정의 기준정전압(Vr1)과 비교하여 제2출력(K2)의 레벨에 따라 상기한 트랜지스터 상(Q8, Q9), (Q10, Q11)중의 일측을 동작시킬수 있는 전기통로를 형성하는 트랜지스터(Q15)(Q16)와, 상기한 트랜지스터(Q15)의 베이스에 인가되는 제2출력(K2)과, 비교되는 소정의 기준전압(Vr1)을 발생하여 트랜지스터(Q16)의 베이스에 인가하는 저항(R4)(R6)(R7) 및 다이오스(Q18)와, 이들 저항(R4)(R6)(R7) 및 다이오드한 (Q18)에 의해 설정되는 소정의 다른 기준전압(Vr2)을 그의 베이스 인가 전압으로 하여 항상 도통되어 상기 트랜지스터(Q15또는 Q16)의 에미터전류를 접지측으로 전달하는 트랜지스터(Q17)와, 상기한 트랜지스터(Q9)(Q10) 콜렉터와 전원(Vcc)과의 사이에 각각 접속된 다이오드(Q12)(Q13)와 함께 전류리피터(current repeater)를 형성하여 트랜지스터(Q9또는 Q10)의 콜렉터 전류와 동일한 크기의 전류를 그의 콜렉터 전류로서 출력하는 트랜지스터(Q14)의 출력에 대하여 버퍼기능을 하는 트랜지스터(Q19, Q20)등을 포함하여 이루어지는 것을 특징으로 하는 FM 및 AM수신기용 중간증폭시스템의 공통출력단 회로.The method of claim 1 wherein the configuration of the analog switch 3 is, transistor (Q 8, which differential amplifier the output signal of the inter-amplifier stage (5) of the aforementioned AM and the power supply voltage (Vcc) to the reference voltage, Q 9 ), The transistors Q 10 and Q 11 for differentially amplifying the output signal of the above-mentioned FM intermediate amplifier 6 using the power voltage Vcc as a reference voltage, and the second output of the electronic switch 1 described above. K 2 ) may be compared with a predetermined reference constant voltage Vr 1 to operate one of the above-described transistors Q 8 , Q 9 and Q 10 and Q 11 according to the level of the second output K 2 . Generates a predetermined reference voltage Vr 1 , which is compared with a transistor Q 15 (Q 16 ) forming an electrical passage, and a second output K 2 applied to the base of the transistor Q 15 . Resistors (R 4 ) (R 6 ) (R 7 ) and diodes (Q 18 ), which are applied to the base of transistor (Q 16 ), and these resistors (R 4 ) (R 6 ) (R 7 ) and diode Small set by (Q18) It defines another reference voltage (Vr 2) a and its base is always conductive and the voltage of the transistor (Q 15 or Q 16) the emitter transistor (Q 17) to pass current toward the ground of the said one transistor (Q 9) (Q 10 ) A current repeater is formed together with the diodes Q 12 and Q 13 connected between the collector and the power supply Vcc, respectively, to equal the collector current of the transistor Q 9 or Q 10 . common intermediate amplification system for FM and AM receiver, characterized in that comprises a transistor (Q 19, Q 20) to a buffer function for the output of the transistor (Q 14) for outputting a current having a magnitude as its collector current, Output stage circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860010015A 1986-11-26 1986-11-26 Common output circuit of i.m.f. amplitude system for fm and am KR900002329B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860010015A KR900002329B1 (en) 1986-11-26 1986-11-26 Common output circuit of i.m.f. amplitude system for fm and am

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860010015A KR900002329B1 (en) 1986-11-26 1986-11-26 Common output circuit of i.m.f. amplitude system for fm and am

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Publication Number Publication Date
KR880006854A true KR880006854A (en) 1988-07-25
KR900002329B1 KR900002329B1 (en) 1990-04-11

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KR1019860010015A KR900002329B1 (en) 1986-11-26 1986-11-26 Common output circuit of i.m.f. amplitude system for fm and am

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KR900002329B1 (en) 1990-04-11

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