KR930007783Y1 - Lamp automatic control circuit for car audio system - Google Patents

Lamp automatic control circuit for car audio system Download PDF

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Publication number
KR930007783Y1
KR930007783Y1 KR2019910015255U KR910015255U KR930007783Y1 KR 930007783 Y1 KR930007783 Y1 KR 930007783Y1 KR 2019910015255 U KR2019910015255 U KR 2019910015255U KR 910015255 U KR910015255 U KR 910015255U KR 930007783 Y1 KR930007783 Y1 KR 930007783Y1
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South Korea
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lamp
comparator
output
car audio
control circuit
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KR2019910015255U
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Korean (ko)
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KR930007417U (en
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박홍순
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삼성전자 주식회사
강진구
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2603—Attenuation of the light according to ambient luminiosity, e.g. for braking or direction indicating lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2619—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic built in the vehicle body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0205—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for radio sets
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

내용 없음.No content.

Description

카오디오용 램프 자동제어회로Lamp automatic control circuit for car audio

제 1 도는 본 고안에 따른 카오디오용 램프 자동제어회로.1 is a lamp automatic control circuit for car audio according to the present invention.

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

10 : 조도감지부 20 : 비교부10: illuminance detection unit 20: comparison unit

30 : 램프구동부 40 : 비교기30: lamp driving unit 40: comparator

본 고안은 일반적으로 사용되는 카오디오에 있어서 카오디오용 램프에 관한 것으로, 특히 카오디오용 램프 자동제어회로에 관한 것이다.The present invention relates to a lamp for car audio in a car audio generally used, and more particularly to a lamp automatic control circuit for car audio.

일반적으로 카오디오는 차량에 장착되어 있는 오디오장치를 말한다. 카오디오에 포함되는 램프는 주위가 어두워질대 사용자가 카오디오의 작동스위치를 쉽게 찾아 조작하는데 필요한 것이다.In general, car audio refers to an audio device installed in a vehicle. The lamp included in the car audio is necessary for the user to easily find and operate the car audio operation switch when the surrounding light becomes dark.

카오디오용 램프는 사용자가 차내가 어둡거나 주위 환경이 어두운 경우, 카오디오를 작동시키기 위하여 사용자는 카오디오용 램프를 점등시키지만 주위 환경이 밝은 대낮인 경우, 사용자는 카오디오용 램프가 필요없으므로 램프를 소등시킨다.The car audio lamp is used when the user is dark in the car or the surroundings are dark, so that the user turns on the car audio lamp in order to operate the car audio. Turn off

상기와 같이 사용자는 주위의 빛밝기에 따라서 카오디오용 램프를 점멸시켜야 하는 불편함이 있다.As described above, the user is inconvenient to blink the car audio lamp according to the ambient light brightness.

또한, 사용자가 사용상 부주의로 밝은 상태에서 램프를 소등시키지 않을 경우, 램프를 구동시키기 위한 밧데리의 소비와 램프의 구동을 주는 마이콤에 부하를 크게 할 뿐만 아니라 램프의 수명을 짧게 하는 문제점이 있었다.In addition, when the user does not turn off the lamp in a bright state inadvertently in use, there is a problem that not only increases the consumption of the battery for driving the lamp and the load on the microcomputer for driving the lamp but also shortens the lamp life.

따라서 본 발명의 목적은 카오디오용 램프를 주위의 빛밝기에 따라서 자동으로 점멸시키기 위한 카오디오용 램프 자동제어회로를 제공하는데 있다.Accordingly, it is an object of the present invention to provide a car audio lamp automatic control circuit for automatically flashing the car audio lamp according to the ambient light brightness.

상기 목적을 달성하기 위하여 주위의 빛의 밝기에 따라서 작동하는 조도감지부와, 조도감지부에서 출력되는 전압과 분압된 램프구동전원을 기준전압으로 비교하는 비교부와, 비교부에서 출력되는 전압의 변화에 따라서 램프를 구동하는 램프구동부를 포함함을 특징으로 한다.In order to achieve the above object, an illuminance detector operating according to the brightness of ambient light, a comparator for comparing the voltage output from the illuminance sensor and the divided lamp driving power supply with a reference voltage, and a voltage output from the comparator And a lamp driver for driving the lamp according to the change.

이하 본 고안을 첨부한 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제 1 도는 카오디오용 램프 자동제어회로 구성도이다.1 is a block diagram of a car audio lamp automatic control circuit.

제 1 도에 의하면 조도감지부(10)는 포토트랜지스터(TR1)와 포토트랜지스터(TR1)의 에미터단에 연결한 저항(R1) 및 콘덴서(C)로 이루어져 있다.Referring to FIG. 1, the illuminance sensing unit 10 includes a phototransistor TR1 and a resistor R1 and a capacitor C connected to the emitter terminals of the phototransistor TR1.

비교부(20)는 상기 조도감지부(10)의 출력전압을 비교하는 비교기(40)와 상기 비교기(40)의 비반전단자에 연결한 저항(R2,R3,R4,R5)로 이루어져 있다.The comparator 20 includes a comparator 40 comparing the output voltages of the illuminance sensing unit 10 and resistors R 2, R 3, R 4, and R 5 connected to the non-inverting terminals of the comparator 40.

램프구동부(30)은 상기 비교부(20)의 출력전압에 의하여 스위칭 작용을 하는 트랜지스터(TR2)와 트랜지스터(TR2)의 베이스단에 연결된 제너다이오드(ZD)와 트랜지스터(TR2)의 콜렉터단에 연결된 저항(R6) 및 램프(LP)로 구성된다. 그러면 제 1 도를 통하여 본 고안의 작동을 상세히 설명하기로 한다.The lamp driver 30 is connected to the collector terminals of the transistors ZD and TR2 connected to the bases of the transistors TR2 and TR2 that switch by the output voltage of the comparator 20. It consists of a resistor R6 and a lamp LP. Next, the operation of the present invention will be described in detail with reference to FIG. 1.

우선, 사용자는 주위 환경이 어두워지면 카오디오를 사용하기 위하여 램프구동전원의 스위치를 점등시킨다. 빛의 밝기에 따라서 전류흐름을 제어하는 포토트랜지스터(TR1)은 외부로부터 빛을 감지하지 않았으므로 차단 상태(off)가 된다. 그러므로 포토트랜지스터(TR1)의 에미터단에 연결된 저항(R1)에는 포토트랜지스터(TR1)가 차단상태(off)로 되어 있으므로 램프구동전원이 인가되지 않는다.First, the user turns on the lamp driving power switch to use the car audio when the surrounding environment becomes dark. The phototransistor TR1 controlling the current flow according to the brightness of the light is turned off because no light is detected from the outside. Therefore, the lamp driving power is not applied to the resistor R1 connected to the emitter terminal of the phototransistor TR1 because the phototransistor TR1 is turned off.

비교기(40)의 비반전단자에는 램프구동전원을 분압하기 위한 저항(R2, R3)가 연결되어 있다.The non-inverting terminal of the comparator 40 is connected with resistors R2 and R3 for dividing the lamp driving power.

한편 비교기(40)의 비반전단자에는 저항(R2, R3)에 의하여 분압된 램프구동전원을 기준전압으로 인가되어 있다. 비교기(40)의 연결된 저항(R2, R3)에 의하여 인가된 기준전압과 조도감지부(10)의 저항(R1)에 인가된 전압을 비교기(40)에서 비교하면 비교기(40)에서 출력된 신호는 "하이" 논리상태신호가 된다. 비교기(40)의 비반전단자에 연결되어 있는 저항(R4, R5)는 비교기(40)의 작동을 안정화 하기 위한 바이어스(BiaS) 저항으로 작용한다.On the other hand, the lamp driving power source divided by the resistors R2 and R3 is applied to the non-inverting terminal of the comparator 40 as the reference voltage. The signal output from the comparator 40 when the reference voltage applied by the connected resistors R2 and R3 of the comparator 40 and the voltage applied to the resistor R1 of the illuminance sensing unit 10 are compared in the comparator 40. Becomes a "high" logic status signal. The resistors R4 and R5 connected to the non-inverting terminals of the comparator 40 serve as bias (BiaS) resistors to stabilize the operation of the comparator 40.

비교기의 출력단에는 바이어스저항(R4)에 의하여 인가되는 과전압으로부터 트랜지스터(TR2)를 보호하기 위하여 제너다이오드(ZD)를 연결하였다. 제너다이오드(ZD)와 연결되어 있는 트랜지스터(TR2)는 VBE가 0.7V 이상이면 도통상태(ON)가 된다. 비교기(40)에서 나온 신호가 "하이" 논리상태신호가 되면 트랜지스터(TR2)는 도통상태(ON)가 되므로 트랜지스터(TR2)의 콜렉단에 연결된 램프(LP)는 램프 구동전원에 의하여 점등상태가 된다. 램프(LP)와 연결되어 있는 저항(R6)는 램프구동 전원에 의한 과전류로부터 램프를 보호하기 위한 저항이다.The output terminal of the comparator is connected to the zener diode (ZD) to protect the transistor (TR2) from the overvoltage applied by the bias resistor (R4). The transistor TR2 connected to the zener diode ZD is turned on when V BE is 0.7 V or more. When the signal from the comparator 40 becomes a "high" logic state signal, the transistor TR2 is turned on, so the lamp LP connected to the collector end of the transistor TR2 is turned on by the lamp driving power. do. The resistor R6 connected to the lamp LP is a resistor for protecting the lamp from overcurrent by the lamp driving power supply.

한편 주위의 빛의 밝기가 어두운 상태에서 밝은 상태로 되면 포토트랜지스터(TR1)의 외부빛에 의하여 도통 상태(ON)가 되면 저항(R1)에 램프구동전원이 인가된다.On the other hand, when the brightness of the surrounding light becomes dark from the bright state, when the conduction state (ON) by the external light of the phototransistor TR1, the lamp driving power is applied to the resistor R1.

포토트랜지스터(TR1)의 에미터단에 연결된 콘덴서(C)는 포토트랜지스터(TR1)가 스위칭작용을 할때 임펄스전류를 제어하므로 스위칭작용을 안정화시키기 위한 것이다. 비교기(40)의 반전단자에 연결된 저항(R1)에 의하여 인가된 전압은 저항(R2, R3)에 의하여 인가된 기준 전압과 비교기(40)에서 비교하면 비교기(40)에서 출력되는 신호는 "로우"논리상태신호가 된다.The capacitor C connected to the emitter end of the phototransistor TR1 controls the impulse current when the phototransistor TR1 switches, and thus stabilizes the switching operation. When the voltage applied by the resistor R1 connected to the inverting terminal of the comparator 40 is compared with the reference voltage applied by the resistors R2 and R3 at the comparator 40, the signal output from the comparator 40 is “low”. "Logic status signal.

비교기(40)에서 출력되는 신호가 "로우"논리상태가 되면 트랜지스터(TR2)는 차단상태(off)가 된다. 트랜지스터(TR2)가 스위칭작용으로서 차단상태(off)가 되면 램프(LP)는 소등이 된다.When the signal output from the comparator 40 is in the "low" logic state, the transistor TR2 is turned off. When the transistor TR2 is turned off due to the switching action, the lamp LP is turned off.

상술한 바와 같이 본 발명을 카오디오용 램프에 있어서 주위의 빛의 밝기를 포토트랜지스터(TR1)를 통하여서 감지하여 자동적으로 램프를 점멸시킬 수 있는 이점이 있다.As described above, in the car audio lamp, the present invention has an advantage of automatically blinking the lamp by sensing the brightness of ambient light through the phototransistor TR1.

Claims (4)

램프를 구비하고 있는 카오디오에 있어서, 주위의 빛의 밝기에 따라서 작동하는 조도감지부(10)와, 상기 조도감지부(10)에서 출력되는 전압과 분압된 램프구동전원을 기준전압으로 하여 비교하는 비교부(20)와, 상기 비교부(20)에서 출력되는 전압의 변화에 따라서 램프(LP)를 구동하는 램프구동부(30)를 포함함을 특징으로 하는 램프 자동제어회로.In a car audio equipped with a lamp, a light intensity sensing unit 10 that operates according to the brightness of ambient light, and a voltage output from the light intensity sensing unit 10 and a divided lamp driving power supply are compared as a reference voltage. And a lamp driver (30) for driving the lamp (LP) according to the change of the voltage output from the comparator (20). 제 1 항에 있어서, 상기 비교부(20)가 상기 조도감지부(10)의 출력신호를 기준전압과 비교하여 그 결과를 상기 램프구동부에 공급하는 비교기(40)와, 상기 비교기(40)의 출력논리상태에 따라 전압레벨이 다른 기준 신호를 발생하여 상기 비교기(40)에 공급하는 기준신호설정수단을 포함함을 특징으로 하는 램프 자동제어회로.The comparator 40 of claim 1, wherein the comparator 20 compares the output signal of the illuminance sensor 10 with a reference voltage and supplies the result to the lamp driver. And a reference signal setting means for generating a reference signal having a different voltage level according to an output logic state and supplying the reference signal to the comparator (40). 제 2 항에 있어서, 상기 램프구동부(30)가 상기 비교부(40)의 출력논리상태에 따라 램프의 전류통로를 개폐하는 제어용스위치(TR2)를 포함하는 램프 자동제어회로.3. The lamp automatic control circuit according to claim 2, wherein the lamp driving unit (30) includes a control switch (TR2) for opening and closing the current path of the lamp in accordance with the output logic state of the comparing unit (40). 제 3 항에 있어서, 상기 램프구동부(30)가 상기 비교기(40)의 출력단자 및 상기 제어용스위치(TR2)의 제어단자사이에 접속되어 상기 비교기(40)의 출력논리의 스윙폭을 증가시키기 위한 제너다이오드(ZD)를 더 포함함을 특징으로 하는 램프 자동제어회로.4. The ramp driving unit 30 is connected between the output terminal of the comparator 40 and the control terminal of the control switch TR2 to increase the swing width of the output logic of the comparator 40. Lamp automatic control circuit further comprises a zener diode (ZD).
KR2019910015255U 1991-09-17 1991-09-17 Lamp automatic control circuit for car audio system KR930007783Y1 (en)

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KR2019910015255U KR930007783Y1 (en) 1991-09-17 1991-09-17 Lamp automatic control circuit for car audio system

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KR930007783Y1 true KR930007783Y1 (en) 1993-11-17

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KR100477252B1 (en) * 2002-09-11 2005-03-17 현대모비스 주식회사 Controllable button's lighting device and method of a car audio-video system

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