KR850001960Y1 - Output level meter auto changing circuit - Google Patents

Output level meter auto changing circuit Download PDF

Info

Publication number
KR850001960Y1
KR850001960Y1 KR2019830009159U KR830009159U KR850001960Y1 KR 850001960 Y1 KR850001960 Y1 KR 850001960Y1 KR 2019830009159 U KR2019830009159 U KR 2019830009159U KR 830009159 U KR830009159 U KR 830009159U KR 850001960 Y1 KR850001960 Y1 KR 850001960Y1
Authority
KR
South Korea
Prior art keywords
output level
circuit
level meter
transistor
resistor
Prior art date
Application number
KR2019830009159U
Other languages
Korean (ko)
Other versions
KR850003513U (en
Inventor
성관희
Original Assignee
주식회사금성사
허신구
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 주식회사금성사, 허신구 filed Critical 주식회사금성사
Priority to KR2019830009159U priority Critical patent/KR850001960Y1/en
Publication of KR850003513U publication Critical patent/KR850003513U/en
Application granted granted Critical
Publication of KR850001960Y1 publication Critical patent/KR850001960Y1/en

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02Indicating arrangements
    • H03J1/04Indicating arrangements with optical indicating means
    • H03J1/045Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
    • H03J1/047Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's

Landscapes

  • Circuits Of Receivers In General (AREA)

Abstract

내용 없음.No content.

Description

출력레벨 미터의 자동 절환 회로Automatic switching circuit of output level meter

제1도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

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

가 : 증폭회로 나 : AM/FM 튜너회로A: Amplification circuit B: AM / FM tuner circuit

다 : 출력레벨미터 A,B : 입력단자C: Output level meter A, B: Input terminal

FF : 플립플롭 LED1,LED2: 발광 다이오드FF: flip-flop LED 1 , LED 2 : light emitting diode

VR1,VR2: 가변저항 R1,R2… : 저항VR 1 , VR 2 : variable resistors R 1 , R 2 . : resistance

C1,C2… : 콘덴서 D1,D2… : 다이오드C 1 , C 2 . : Capacitors D 1 , D 2 . : Diode

TR1,TR2… : 트랜지스터 10 : 공지의 출력레벨 표시회로TR 1 , TR 2 . Transistor 10: Known Output Level Display Circuit

20 : 공지의 튜우닝 표시회로 30 : 충전회로20: well-known tuning display circuit 30: charging circuit

본 고안은 단일의 출력레벨 미터가 튜우닝 표시회로 출력레벨 미터로서 구동 하고, 앰프의 출력레벨 미터로서 구동할 수 있게한 출력레벨 미터로서 구동할 수 있게한 출력레벨 미터의 자동 절환 회로에 관한 것이다.The present invention relates to an automatic switching circuit of an output level meter which enables a single output level meter to be driven as a tuning level display circuit output level meter and to be operated as an output level meter which enables to drive as an output level meter of an amplifier. .

특히, 본 고안의 회로는 오디오 제품등에 널리 사용할 수있는 것으로, 전원 인가시 초기에 방송 신호가 인가되면 먼저 튜우닝 표시회로를 구동 시켜 단일의 출력레벨 미터로서 튜우닝 상태를 표시한 후 일정 시간 후에 출력레벨 표시회로를 구동시켜 앰프의 출력을 단일의 출력레벨 미터로서 나타낼 수 있게 한 것이다.In particular, the circuit of the present invention can be widely used in audio products, and when a broadcasting signal is initially applied when the power is applied, first driving the tuning display circuit to display the tuning state as a single output level meter after a predetermined time. The output level display circuit is driven so that the output of the amplifier can be represented as a single output level meter.

현재 일반적으로 사용 하고 있는 튜우닝 표시회로와 앰프의 출력표시회로는 각각 분리되도록 구성 되어 있어서 각각 출력레벨 미터를 별도로 사용 하여야만 되는 것이나, 튜우닝 표시회로는 방송 초기에 방송 수신 상태의 동조여부만 확인 하면 되는 것으로 방송중에 튜우닝 표시회로의 출력레벨 미터를 별도로 사용하여 불필요한 전력 손실을 기할 필요가 없는 것이었다.Tuning display circuit and amplifier's output display circuit which are currently used are configured to be separated from each other, so each output level meter must be used separately, but the tuning display circuit only checks whether the broadcast reception is tuned at the beginning of broadcasting. It was possible to use a separate output level meter of the tuning display circuit during broadcasting to avoid unnecessary power loss.

본 고안은 이와 같은 점을 감안하여 단일의 출력레벨 미터로서 방송 초기시에는 튜우닝 출력레벨 미터로 사용 하고 방송 중에는 앰프의 출력레벨 미터로서 사용할 수 있도록 저항과 콘덴서로 구성된 충전 회로의 시정수에 의하여 출력레벨 미터의 구동 회로를 순차적으로 제어하여 단일의 출력레벨 미터에 인가하도록 된 것으로, 이를 첨부도면에 의하여 상술 하면 다음과 같다.In view of the above, the present invention is a single output level meter, which is used as a tuning output level meter at the beginning of broadcasting and as a power level meter of an amplifier during broadcasting. The driving circuit of the output level meter is sequentially controlled and applied to a single output level meter, which will be described in detail with reference to the accompanying drawings.

본 고안은 제1도에서와 같이 증폭회로 (가)에서 가변저항(VR1)을 통하여 콘덴서(C1)에 연결구성한 후 트랜지스터(TR1) 및 저항(R15)(R16) 다이오드(D1,D2)로서 공지의 출력레벨 표시회로(10)를 구성하고, AM/FM 튜너회로 (나)에서 가변 저항(VR2)를 통하여 다이오드(D4)와 연결 구성 시키어 공지의 튜우닝 표시회로를 구성하고 있다.The present invention is connected to the capacitor (C 1 ) through the variable resistor (VR 1 ) in the amplifier circuit (A) as shown in FIG. 1 and then transistor (TR 1 ) and resistor (R 15 ) (R 16 ) diode (D) 1 , D 2 ), a known output level display circuit 10 is configured, and an AM / FM tuner circuit ( b ) is connected to the diode D 4 through a variable resistor VR 2 to display a known tuning. It constitutes a circuit.

그리고 AM/FM 튜너회로 (나)에서 저항(R4)(R17)로 분배시킨 후 상호역동작하는 트랜지스터(TR4)(TR5)를 연결 구성 하여 콘덴서(C5)와 저항(R18)로 구성된 미분회로에서 플립플롭(FF)의 셋트단자(S)에 연결 시키고 출력단자(Q)에서 일측은 저항(R9)과 콘덴서(C4)로 구성된 충전회로(30)를 통하여 플립플롭(FF)의 리셋트단자(R)에 연결 구성시키며 타측은 단자(B+)에서 저항(R12)과 발광 다이오드(LED1)를 통하여 트랜지스터(TR6)에 연결 구성 시키며 출력단자는 단자(B+)에서 저항(R13)과 발광 다이오드(LED2)를 통하여 트랜지스터(TR7)에 연결 구성 시킨다.In addition, the AM / FM tuner circuit (b) divides the resistors (R 4 ) (R 17 ) and connects the transistors (TR 4 ) (TR 5 ), which are interoperable, to connect the capacitor (C 5 ) and the resistors (R 18). In the differential circuit consisting of), it is connected to the set terminal (S) of the flip-flop (FF), and one side of the output terminal (Q) is flip-flop through the charging circuit 30 composed of a resistor (R 9 ) and a capacitor (C 4 ) It is connected to the reset terminal (R) of (FF), and the other side is connected to the transistor (TR 6 ) through the resistor (R 12 ) and the light emitting diode (LED 1 ) at the terminal (B + ) and the output terminal Is connected to the transistor TR 7 through the resistor R 13 and the light emitting diode LED 2 at the terminal B + .

그리고 플립플롭(FF)의 출력단자(Q)에서 트랜지스터(TR3)를 제어하도록 연결 구성 하여 다이오드(D5)를 통하여 출력레벨 미터(다)에 연결 구성 하고, 플립플롭(FF)의 출력단자에는 트랜지스터(TR2)를 제어하도록 연결 구성하여 다이오드(D3)를 통하여 출력레벨 미터(다)에 연결구성된 것이다.The output terminal Q of the flip-flop FF is connected to control the transistor TR 3 and connected to the output level meter C through the diode D 5 , and the output terminal of the flip-flop FF. Is connected to the output level meter (C) through the diode D 3 and configured to control the transistor TR 2 .

이와 같이 구성된 본 고안은 방송 신호 수신 초기시에 AM/FM 튜너회로 (나)에서 저항(R4)(R17)으로 분배된 바이어스 분배전원이 트랜지스터(TR4)의 베이스에 인가되는 것으로 정확한 튜우닝 상태가 되었을때 트랜지스터(TR3)는 도통 되고 역동작하는 트랜지스터(TR5)는 차단 되어 트랜지스터(TR5)의 콜렉터의 저항(R8)에는 고전위상태 신호가 인가되어 콘덴서(C5)와 저항(R18)으로 구성된 미분회로에서 정형된 펄스 신호가 플립플롭(FF)의 셋트단자(S)에 인가되면 출력단자(Q)에서 고전위상태 신호가 발생되어 일측은 트랜지스터(TR6)의 베이스에 인가되므로 B+전원이 발광 다이오드(LED1)를 통하여 트랜지스터(TR6)가 도통 되므로, 표시램프가 점등 하고, 타측에 인가된 고전위 상태신호는 트랜지스터(TR3)를 구동 시키므로 AM/FM 튜너회로 (나)에서 인가된 전원이 트랜지스터(TR3)에서 다이오드(D3)를 통하여 출력레벨 미터 (다)에 인가되므로 튜너에서 동조된 튜우닝 상태를 출력레벨미터 (다)로서 확인 할 수 있는 효과가 있는 것이다.According to the present invention, the bias distribution power distributed from the AM / FM tuner circuit (b) to the resistors (R 4 ) and (R 17 ) is applied to the base of the transistor (TR 4 ) at the beginning of the broadcast signal reception. When it is in the uning state, the transistor TR 3 is turned on and the reversely operated transistor TR 5 is cut off, and a high potential signal is applied to the resistor R 8 of the collector of the transistor TR 5 so that the capacitor C 5 is closed. When a pulse signal shaped in a differential circuit composed of and a resistor R 18 is applied to the set terminal S of the flip-flop FF, a high potential signal is generated at the output terminal Q so that one side of the transistor TR 6 is generated. Since B + power is applied to the base of the transistor TR 6 through the light emitting diode LED 1 , the display lamp is turned on, and the high-potential state signal applied to the other side drives the transistor TR 3 . From the FM / FM tuner circuit (B) Since power is applied to the transistor (TR 3) the diode (D 3), the output level m (C) through it which is effective to determine the tube wooning state tuning in a tuner as an output level meter (C).

그리고 플립플롭(FF)의 출력단자(Q)에서 인가된 고전위상태신호가 저항(R9)과 콘덴서(C4)로 구성된 충전회로(3')에 인가되어 충전이 되면 그상태 신호가 플립플롭(FF)의 리셋트단자(R)에 인가되면 출력단자(Q)는 저전위 상태가 되어 발광 다이오드(LED)가 소등됨과 동시에 출력레벨미터 (터)다에는 튜우닝 회로의 전원이 인가되지 못하고 출력단자로 고전위 상태신호가 발생되어 트랜지스터(TR7)에 인가되므로 발광다이오드(LED2)가 점등되면서 출력단자의 고전위상태 신호가 트랜지스터(TR2)의 베이스에 인가되므로 증폭회로 (가)를 통하여 공지의 출력레벨 표시회로(10)에 인가된 상태신호가 트랜지스터(TR2)에서 다이오드(D3)를 통하여 출력레벨 미터 (다)에 인가되므로 증폭회로(가)의 출력상태에 따라 출력레벨 미터 (다)가 구동하게 되는 것으로 단일의 출력레벨 미터 (다)로서 튜우닝 출력레벨 미터로 사용할 수 있으며 앰프의 출력레벨 미터로서 사용할 수 있는 효과가 있는 것이다.When the high potential state signal applied from the output terminal Q of the flip-flop FF is applied to the charging circuit 3 'composed of the resistor R 9 and the capacitor C 4 and charged, the state signal is flipped. When applied to the reset terminal R of the flop FF, the output terminal Q is in a low potential state, the light emitting diode LED is turned off, and the power of the tuning circuit is not applied to the output level meter. Output terminal As the high potential signal is generated and applied to the transistor TR 7 , the light emitting diode LED 2 is turned on and the output terminal Since the high potential signal of is applied to the base of the transistor TR 2 , the state signal applied to the known output level display circuit 10 through the amplification circuit (A) is applied to the diode D 3 in the transistor TR 2 . It is applied to the output level meter (C) so that the output level meter (C) is driven according to the output state of the amplifying circuit (A). It can be used as a tuning output level meter as a single output level meter (C). The effect is that it can be used as an output level meter.

이상 에서와 같이 본 고안은 저항(R9)과 콘덴서(C4)로 구성된 충전 회로(30)의 시정수에 의하여 출력레벨 미터의 구동 회로를 순차적으로 제어하여 단일의 출력레벨 미터 (다)에 인가되도록 하여 출력레벨미터의 자동 절환 회로를 제공할 수가 있는 것이다.As described above, the present invention sequentially controls the driving circuit of the output level meter by the time constant of the charging circuit 30 composed of the resistor R 9 and the condenser C 4 to the single output level meter (C). It can be applied to provide an automatic switching circuit of the output level meter.

Claims (1)

(정정) AM/FM 튜너회로 (나)에 상호 역동작하는 트랜지스터(TR4)(TR5)를 연결하고, 상기 트랜지스터(TR5)의 콜렉터측에 콘덴서(C5)와 저항(R18)으로 구성된 미분회로를 통하여 플립플롭(FF)의 세트단자(S)를 연결하고, 그의 리세트단자(R)에는 저항(R9)과 콘덴서(C4)로 구성된 충전회로(30)를 연결하고, 그의 출력단(Q),에는 각각 발광 다이오드(LED1)(LED2)가 접속된 트랜지스터(TR6)(TR7)를 연결하여, 공지의 출력레벨 표시회로(10)와 튜우닝 표시회로(20) 출력신호를 스위칭 하는 트랜지스터(TR2),(TR3)를 제어하도록 구성하고, 상기 트랜지스터(TR2),(TR3)의 에미터에 접속된 다이오드(D3),(D5)를 통하여 단일의 출력레벨 미터(다)에 인가하도록 구성된 출력 레벨 미터의 자동 절환회로.(Correct) Connect the transistors TR 4 and TR 5 which are mutually reversed to the AM / FM tuner circuit B, and the capacitor C 5 and the resistor R 18 on the collector side of the transistor TR 5 . Connect the set terminal (S) of the flip-flop (FF) through the differential circuit consisting of, connect the charging circuit 30 consisting of a resistor (R 9 ) and a capacitor (C 4 ) to its reset terminal (R) , Its output stage (Q), The transistors TR 6 and TR 7 to which the light emitting diodes LED 1 and LED 2 are connected are respectively connected to switch the output signals of the known output level display circuit 10 and the tuning display circuit 20. a transistor (TR 2), (TR 3 ) a configured to control, said transistor (TR 2), (TR 3 ) a single output level of the meter via a diode (D 3), (D 5 ) connected to the emitter of the Automatic switching circuit of output level meter configured to apply to (C).
KR2019830009159U 1983-10-27 1983-10-27 Output level meter auto changing circuit KR850001960Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019830009159U KR850001960Y1 (en) 1983-10-27 1983-10-27 Output level meter auto changing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019830009159U KR850001960Y1 (en) 1983-10-27 1983-10-27 Output level meter auto changing circuit

Publications (2)

Publication Number Publication Date
KR850003513U KR850003513U (en) 1985-06-17
KR850001960Y1 true KR850001960Y1 (en) 1985-09-11

Family

ID=70159352

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019830009159U KR850001960Y1 (en) 1983-10-27 1983-10-27 Output level meter auto changing circuit

Country Status (1)

Country Link
KR (1) KR850001960Y1 (en)

Also Published As

Publication number Publication date
KR850003513U (en) 1985-06-17

Similar Documents

Publication Publication Date Title
KR850001960Y1 (en) Output level meter auto changing circuit
US4340908A (en) Control level displaying apparatus
GB1024258A (en) Improvements in or relating to automatic frequency control circuit arrangements
GB1086490A (en) Improvements in or relating to transistor receiving circuits
GB1330988A (en) Receiver for pulse modulated signals
US3706041A (en) Automatic tuning circuit
EP0313746A3 (en) Ecl input circuit for cmos devices
KR890000226Y1 (en) Tuning displaying device
KR890001044Y1 (en) Am and fm muting circuit
EP0264161A2 (en) Active filter with bootstrapping
US3571714A (en) Lamp arrangement for combined tuning indication and silent tuning in high-frequency receivers
US4147986A (en) AM-FM receiver
GB764428A (en) Improvements in or relating to radio broadcast receivers
JPH0339956Y2 (en)
KR860001343B1 (en) Electronic band selector with muting function
KR880000915Y1 (en) Voice signal auto-switching circuit in voice multi-channel broadcasting system
KR910000104Y1 (en) Switching circuit for tv and a/v
JPS6324663Y2 (en)
KR890006230Y1 (en) Mode converting circuit of television
KR900003704Y1 (en) Auto tunning memory circuit of pll tuner
KR920004339Y1 (en) Circuit for driving am/fm tuner respectively
JPS5929426Y2 (en) television receiver
KR890009422Y1 (en) Automatic simulated stereo circuits
KR880002700Y1 (en) External signal selecting circuit in a television channel selection
KR900011295Y1 (en) Band change circuit of electronic tuner

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
O032 Opposition [utility model]: request for opposition
O121 Withdrawal of opposition [utility model]
E701 Decision to grant or registration of patent right
O071 Decision to grant registration after opposition [utility model]: decision to grant registration