KR100947461B1 - An electric circuit for both sidelights and turnsignals and vehicle having the same - Google Patents

Abstract

PURPOSE: A side lamp circuit and a turn signal lamp circuit which are mounted on a side mirror cover, and a vehicle with the same are provided to prevent the disturbance of the viewing direction of a driver by lighting an LED. CONSTITUTION: A vehicle with a side lamp circuit and a turn signal lamp circuit comprises a side mirror(110). The side mirror comprises an outer cover(111) and a reflective mirror. The side lamp circuit and the turn signal lamp are mounted on side of the outer cover and have LED lamps in order to indicate danger. The outer cover of the side mirror is cup shape which has a front part and a side part. Lighting-emitting parts(121,122) locates in the front surface of the outer cover.

Description

An electric circuit for both sidelights and turnsignals and vehicle having the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle traffic light / turn light control circuit installed in a side miller cover and a vehicle having the same, wherein the vehicle light / direction can smoothly serve as a light and a direction indicator without disturbing the view of another driver. An indicator light emission control circuit.

In general, the side mirror installed on the outer side of the vehicle allows the driver to grasp the situation around the vehicle when driving the vehicle, thereby playing an important role in safe driving. In other words, while the vehicle is driving, an equalizing device for securing a watch and an equalizing device for displaying signals and signs as means for communicating with it are required. The lighting devices for securing the above-described clocks include headlights, fog lights, indoor lights, reversing lights, and the like. The above-mentioned signal and marking lights include emergency lights, turn signals, vehicle width lights, number lights, stop lights, and the like. In order to satisfy the requirements, the product conforming to the standard is mandatory.

Recently, a side mirror with a vehicle width to notify other vehicles of the progress and movement of the vehicle during night driving, and a puddle lamp to improve the convenience of drivers and passengers who get off in a dark environment. Side mirrors and built-in side mirrors with built-in direction indicators for indicating the direction of rotation of the left or right turn of the vehicle have been developed and released. It is gradually increasing.

By the way, in the case of a traffic light (taillight), it performs its function only when the field of view is bad due to fog or at night.

Therefore, by adding and attaching a simple separate independent equalizing device to the car, the signal function of the car is not only complicated, but the cost is additionally added to the car before and after the appearance of the car. It was inconvenient, which in many ways was a cumbersome check. Therefore, a method that can be used by using the equalizer function has been proposed to simplify the appearance of the vehicle.

For example, in the Korean Utility Model Publication ("Combination of taillights and direction indicators of automobiles, Utility Publication No. 90-111984"), the vehicle width lamps are combined with the direction indicators using a lamp adjustment switch, a fine movement switch, and a turn signal switch. In other words, it proposes a circuit configuration that performs the function as a turn signal by mechanical switching when the turn signal signal is input after the turn signal signal is executed.

However, since the conventional circuit configuration is a circuit constituted by a mechanical switching operation, there is a limit in implementing a vehicle due to a large circuit volume. In particular, in recent years, the direction indicator lights are installed in a vehicle side mirror, etc. In order to use the direction indicator lights installed in the vehicle rearview mirror in combination with a vehicle width lamp, a circuit must be miniaturized. There were many limitations to the installation on the vehicle rearview mirror.

Of course, in the case of installing the vehicle headlight and the turn signal to the side mirror of the vehicle, there is a problem in that it prevents the driver's visibility of the other vehicle adjacent to the side due to the bright light of the vehicle.

The present invention has been proposed in order to solve the above problems, and among the vehicle side light / direction indicators installed on the side miller cover, the LEDs for the side light are disposed on the front side of the side miller cover, and the LEDs for the turn signals on the side of the side miller cover. When the traffic light signal is applied, only the LED for traffic light is emitted, and when the direction signal is applied, the LED for traffic light and the LED for the direction light are emitted so as not to disturb other driver's view. It is an object of the present invention to provide a vehicle width / turn signal circuit and a vehicle provided with the side mirror cover that can serve as a direction indicator.

Difference light / turn signal circuit according to the present invention for achieving the above object,

A first light emitting part and a second light emitting part having a positive terminal and a negative terminal;

A first switch unit for connecting the negative terminal of the first light emitting unit to a ground power source according to a state of a traffic light signal;

A vehicle headlight signal input unit configured to provide the vehicle headlight signal to both terminals of the first light emitting part and the first switch part;

A second switch unit for connecting the negative terminals of each of the first light emitting unit and the second light emitting unit to a ground power source according to a state of a turn signal signal; And

A turn signal signal input unit configured to provide the turn signal signal to both terminals of the first light emitting unit and the second light emitting unit, and the second switch unit;

It is configured to include.

And a switch operation control unit for disabling the operation of the first switch unit according to the state of the turn signal signal.

A first comparator configured to control an operation of the first switch unit according to an output signal of the vehicle headlight signal input unit and the switching operation controller;

A second comparator for controlling the operation of the second switch unit in accordance with the output signal of the turn signal signal input unit.

The first and second light emitting portion includes at least one light emitting diode,

The number and light emitting colors of the light emitting diodes of the first light emitting part and the light emitting diodes of the second light emitting part may be different from each other.

In addition, the vehicle traffic light / turn signal circuit according to the present invention for achieving the above object,

A first light emitting part and a second light emitting part having a positive terminal and a negative terminal;

A traffic light signal input unit configured to provide a traffic light signal to both terminals of the first light emitting unit;

A turn signal signal input unit which provides a turn signal signal to both terminals of the second light emitting unit;

A first switch unit connecting the negative terminal of the first light emitting unit to a ground power source according to a first output signal;

A second switch unit for connecting the negative terminals of each of the first light emitting unit and the second light emitting unit to a ground power source according to a second output signal; And

A microcomputer for generating the first and second output signals for controlling the operations of the first and second switch units according to the traffic light signal and the turn signal signal;

It is configured to include.

In addition, the vehicle according to the present invention for achieving the above object,

A side mirror having an exterior cover,

A first light emitting part disposed in a front portion of the exterior cover of the side miller and having a positive (+) terminal and a negative (-) terminal, and a positive (+) terminal and a negative terminal disposed at a side of the exterior cover; A second light emitting unit having a second light source; a first switch unit for connecting the negative terminal of the first light emitting unit to a ground power source according to a state of a traffic light signal; and both terminals of the first light emitting unit and the first switch unit A vehicle headlight signal input unit for providing a soaring signal, a second switch unit for connecting the negative terminals of each of the first light emitting unit and the second light emitting unit to ground power according to the state of the turn signal signal, and the first light emitting unit and the first light emitting unit; A traffic light / direction indicator circuit comprising a turn signal signal input section for providing the turn signal signal to both terminals of each of the two light emitting sections and the second switch section;

It is configured to include.

And a switch operation control unit for disabling the operation of the first switch unit according to the state of the turn signal signal.

A first comparator configured to control an operation of the first switch unit according to an output signal of the vehicle headlight signal input unit and the switching operation controller;

And a second comparator for controlling an operation of the second switch unit according to an output signal of the turn signal signal input unit.

According to the present invention, when the tail light signal, that is, the traffic light signal, is applied to the vehicle side light / turn signal circuit provided in the side mirror cover, only the light emitting diode located in front of the side mirror cover emits light, and when the direction indicator signal is applied, The light emitting diodes located at the front and side of the miller cover blink together to have the advantage of serving as lights (vehicle lights) and direction indicators without disturbing the vision of other drivers.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of a traffic light / turn signal circuit according to the present invention will be described with reference to the accompanying drawings.

1 is a view showing the exterior of the vehicle according to an embodiment of the present invention, and the side miller having a vehicle traffic light / turn signal circuit installed thereon.

As shown in FIG. 1, the vehicle 100 includes a side mirror 110. In addition, although not shown, the side mirror 110 has a reflector. Side surface of the exterior cover is provided with a vehicle headlight portion / direction indicator portion 120 as shown. The vehicle headlight part / turn indicator part 120 is made of a light emitting element such as an LED to emit a constant light. That is, by emitting light, the front and side objects may be prevented from colliding with the vehicle, and the vehicle may move in advance. In this case, the vehicle headlight / turn indicator 120 according to FIG. 1 refers to a light emitting unit among the vehicle headlight / turn indicator circuits.

The exterior cover 111 of the side mirror 110 described above is manufactured in a cup shape having an approximately front part and a side part. In this case, the light emitting part 121 for the traffic light is located at the front part of the exterior cover 111. The light emitting part 122 for the turn indicator is located at the side of the exterior cover 111. Through this, when the field of view is narrow at night or by the eye light, the collision light of the vehicle may be prevented by emitting the light emitting part 121 for the traffic light.

In the present embodiment, only the light emitting portion 121 for the traffic light is emitted when the traffic light signal is applied, and both the light emitting portion 121 for the traffic light and the light emitting portion 122 for the direction light are applied when the turn signal signal is applied. It emits light. Through this, the driving direction of the vehicle may be notified to the driver of another vehicle exactly and may not interfere with securing the view of another vehicle driver. In the present embodiment, the traffic light signal and the tail light signal are the same signal.

That is, since the light emitting portion 121 for the traffic light is positioned on the front surface of the exterior cover 111, the bright light of the light emitting portion 121 for the traffic light does not prevent the vehicle driver's view of the adjacent (eg, side) area from being secured. Can be. That is, when the vehicle light emitting part 121 is installed in the side miller 110, it may be difficult to secure a vision of another vehicle driver as compared to other lighting devices of the vehicle. That is, the height of the side mirror 110 is similar to the height of the field of view of the vehicle driver.

As such, in the present embodiment, the vehicle headlight / direction indicator 120 may be a single lighting device, and may serve as a vehicle headlight and a direction indicator. In other words, the vehicle width lamp means that it can act as a turn signal if necessary.

Operation control of the vehicle headlight / turn indicator light 120 as described above is performed by a vehicle headlight / turn light control circuit provided in the side mirror. In the following, a traffic light / turn signal circuit having such a control circuit will be described.

2 is a circuit of a traffic light / turn signal circuit according to an embodiment of the present invention.

As illustrated in FIG. 2, the first light emitting unit 210 and the second light emitting unit 220 having positive and negative terminals, respectively, and the first light emitting unit ( A vehicle lighting lamp that provides the vehicle headlight signal to the first switch unit 230 for connecting the negative terminal of the battery 210 to a ground power source, and the positive terminal of the first light emitting unit 210 and the first switch unit 230. The signal input unit 240, the second switch unit 250 for connecting the negative terminal of the second light emitting unit 220 to ground power according to the state of the turn signal signal, and the first according to the state of the turn signal signal. A switch operation controller 260 for disabling the operation of the switch unit 230, both terminals of each of the first light emitting unit 210 and the second light emitting unit 220, the second switch unit 250, and the A turn signal signal input unit 270 for providing the turn signal signal to the switch operation controller 260 is provided. Here, the negative terminals of the first and second light emitting parts 210 and 220 are connected. That is, they share one phoneme.

As a result, when an external vehicle headlight signal is applied through the vehicle headlight signal input unit 240, the first light emitting unit 210 emits light by the first switch unit 230. As a result, the traffic light, that is, the taillight, emits light. In addition, when the turn signal signal is applied through the turn signal signal input unit 270, the first switch unit 230 is disabled by the switch operation controller 260, and the first switch unit 250 is turned off by the second switch unit 250. The second light emitting units 210 and 220 emit light. This will cause the turn indicator to flash.

In the present embodiment, when the driver requests the vehicle light (that is, the taillight) to emit light by using the selection means in the driver's seat to operate the first light emitting unit 210 which is the tail light of the traffic light / turn signal circuit in the side mirror, The electronic controller outputs a vehicle headlight signal for causing the vehicle headlight / direction indicator to emit light. The electronic time & alarm control system (ETACS) is a function unit for controlling various electronic devices in a vehicle, for example, a seat belt alarm function, a key and keyhole lighting function, a photosensitive indoor light function, a power window timer function, It performs various functions such as a centralized door lock, and in particular, performs a function of generating and outputting a traffic light signal or a direction indicator signal at the driver's request.

The electronic control alarm device outputs a vehicle headlight signal having a logic HIGH signal shape having a predetermined size through the vehicle headlight signal output stage. The output vehicle headlight signal is provided to the vehicle headlight signal input terminal 240.

In addition, the electronic control alarm device outputs the direction indicator signal in the form of a pulse through the direction indicator signal output stage. The output direction indicator signal is provided to the direction indicator signal input terminal 270.

The circuit configuration described above will be described in more detail as follows.

The first light emitting unit 210 includes a plurality of light emitting diodes D1 to D4 (that is, LEDs). As shown in FIG. 2, the first light emitting unit 210 includes four light emitting diodes D1 to D4 connected in series. Of course, the number of the light emitting diodes is not limited thereto, and may be more or less than this. In addition, the connection relationship of the light emitting diodes is not limited to the series, and may be connected in parallel, parallel or anti-parallel form.

The LED (Light Emitting Diode) is a light emitting diode (luminescent diode), a light emitting device that can emit light by forming a small number of carriers (electrons or holes) injected using the PN junction structure of the semiconductor and recombination thereof The light emission may serve as a traffic light or a direction indicator.

Both terminals of the first light emitting unit 210 are connected to the traffic light signal input unit 240 and the turn signal signal input unit 270. The negative terminals of the first light emitting unit 210 are connected to the first and second switch units 230 and 250. As a result, the first light emitting unit 210 emits light according to the traffic light signal and the turn signal signal.

Subsequently, the vehicle headlight signal input unit 240 for applying the vehicle headlight signal to both terminals of the first light emitting unit 210 and the first switch unit 230 may include an input terminal for receiving the vehicle headlight signal and the first light emitting unit 210. A diode D7 and a resistor R1 provided between both terminals of the N-type) and a resistor R4 provided between the input terminal and the first switch unit 230 are provided. Here, provision may also mean electrical connection between two members.

As shown in FIG. 2, the diode D7 and the resistor R1 are connected in series. Here, the diode D7 prevents reverse bias generation. The resistors R1 and R4 play a role of transconductance that converts the voltage source into a current source. For example, if the power supply voltage across the LED + series resistor changes, the voltage of the LED is almost constant so that only the voltage across the series resistor changes so that the current changes in proportion to the changed voltage so that the brightness of the LED can be adjusted. do.

Subsequently, the first switch unit 230 described above includes a transistor Q1 as shown in FIG. 2. At this time, a bipolar transistor BJT is used as the transistor Q1. Of course, the present invention is not limited thereto, and a FET may be used.

When using the BJT, the first switch unit 230, the base terminal is connected to the output terminal of the vehicle signal lamp 240, such as. That is, as shown in FIG. 2, the signal is connected to the resistor R4 of the vehicle headlight signal input unit 240. This means that a traffic light signal is applied to the base terminal of the first switch unit 230. The collector terminal of the first switch unit 230 is connected to the negative terminal of the first light emitting unit 210, and the emitter terminal is connected to the ground power source.

When the signal larger than the threshold voltage of the BJT is applied to the vehicle headlight signal through the connection as described above, the first switch unit 230 is activated. This conducts electricity between the emitter and collector terminals. Therefore, the negative terminal of the first light emitting unit 210 is connected to the ground power source.

As described above, when the negative terminal of the first light emitting unit 210 is connected to the ground power supply by the first switch unit 230, and the vehicle headlight signal is input to both terminals of the first light emitting unit 210, the first light emitting unit ( 210 will emit light.

Subsequently, the above-described second light emitting unit 220 includes a plurality of light emitting diodes D5 and D6 similarly to the aforementioned first light emitting unit 210. That is, as shown in FIG. 2, the second light emitting unit 220 includes two light emitting diodes D5 and D6 connected in series. In this case, the number and connection relationship of the light emitting diodes may vary as mentioned above.

In addition, as described with reference to FIG. 1, the first light emitting unit 210 is located in front of the side mirror cover, and the second light emitting unit 220 is located at the side of the side mirror cover.

Subsequently, the above-described turn signal signal input unit 270 includes a resistor R2 and a diode D8 provided between an input terminal receiving the turn signal signal and both terminals of the first light emitting unit 210, and the input terminal and the switch operation control unit. The diode D10 and the resistor R6 provided between the 260, the resistor R3 and the diode D9 provided between the input terminal and both terminals of the second light emitting unit 220, and the input terminal and the second terminal. The resistor R9 is provided between the switch units 250. Here, a diode D11 and a resistor R10 are respectively connected between a node between the resistor R9 and the second switch unit 250 and a ground power source.

As such, the direction indicator signal input unit 270 receives the pulse signal of the direction indicator signal provided from the outside (that is, the electronic control alarm device) through the resistors R2, R3, R6, R9 and diodes D8, D9, D10. The first and second light emitting units, the switch operation control unit 260 and the second switch unit 250 are provided.

Subsequently, the second switch unit 250 described above includes the transistor Q3 as shown in FIG. 2. In this case, BJT or FET may be used as the transistor Q3.

When using the BJT, the second switch unit 250 has a base terminal connected to the output terminal of the turn signal signal input unit 250. That is, as shown in FIG. 2, the resistor R9 of the turn signal signal input unit 250 is connected. This means that the direction indicator signal is applied to the base terminal of the second switch unit 250. The collector terminal of the second switch unit 250 is connected to the negative terminal of the second light emitting unit 220, and the emitter terminal is connected to the ground power source.

When the signal greater than the threshold voltage of the BJT is applied to the turn signal through the connection as described above, the second switch unit 250 is activated. This conducts electricity between the emitter and collector terminals. Therefore, the negative terminal of the second light emitting unit 220 is connected to the ground power source. At this time, since the negative terminal of the first light emitting unit 210 is electrically connected to the negative terminal of the second light emitting unit 220, the negative terminal of the first light emitting unit 210 is also connected to the ground power source.

As a result, the negative terminals of the first and second light emitting units 210 and 220 are connected to the ground power supply by the second switch unit 250, and both terminals of the first and second light emitting units 210 and 220 are pulsed. When the direction indicator signal of the form is input, the first and second light emitting units 210 and 220 emit light in the form of pulses.

In the present embodiment, the switch operation control unit 260 is provided to disable the first switch unit 230 in order to simultaneously apply the turn signal signal and the traffic light signal to the first and second light emitting units 210. The negative terminal of 220 may be connected to the ground power source by the second switch unit 250.

The switch operation control unit 260 is a RC delay unit for generating a sustained waveform RC delay signal by receiving a pulse direction indicator signal, and the base terminal of the first switch unit 230 by operating according to the RC delay signal. Transistor Q2 for providing a ground power source. The RC delay unit includes a resistor R7 provided between the base terminal of the transistor Q2 and the turn signal signal input unit 270, a capacitor C1 provided between one terminal of the resistor R7 and ground, and a resistor R7. A resistor R8 is provided between the other terminal and the ground. The RC delay unit receives a pulse signal turn signal that changes logic high and low, and generates an RC delay signal in which the logic high signal is continuously maintained. This continuously provides a logic high signal to the base terminal of transistor Q2 while the turn signal signal is applied. Through this, transistor Q2 is turned on. As a result, the switch operation controller 260 generates a disable signal. Accordingly, the first switch unit 230 may be disabled by blocking the signal of the vehicle headlight or the like applied to the first switch unit 230.

Hereinafter, the operation of the above-described circuit will be described based on the operation waveform.

3 is a waveform diagram illustrating an operation of a traffic light / turn signal circuit according to an exemplary embodiment.

As shown in FIG. 3, when the signal of the high light of logic high is applied from the electronic control alarm device by the driver's operation (refer to region K1 of FIG. 3), the signal of the high light of the high light signal of the logic high is 240. The explosion signal is applied to both terminals of the first light emitting unit 210 and the first switch unit 230. At this time, the first switch unit 230 is turned on by the differential signal such as the ground to apply the ground power to the negative terminal of the first light emitting unit (210). As a result, the first light emitting unit 210 emits light. On the other hand, the turn signal signal is not applied because there is no user operation. That is, since the logic low is provided, the second light emitting unit 220 does not emit light.

Subsequently, when the direction indicator signal of the pulse waveform (logic high and logic low are periodically changed) is applied from the electronic control alarm device by the driver's operation while the signal of the high traffic light of logic high is applied (K2 of FIG. 3). Area)), the traffic light signal input unit 240 continuously applies the traffic light signal to both terminals of the first light emitting unit 210.

However, when the turn signal signal of the pulse waveform is applied, the turn signal signal input unit 270 transmits the turn signal signal to both terminals of the first light emitting unit 210, both terminals of the second light emitting unit 220, and a switch operation control unit. 260, and the second switch 250.

At this time, the direction indicator signal of the pulse waveform applied to the switch operation control unit 260 generates an RC delay signal having a constant logic high value by the RC delay circuit, and the first switch unit 230 uses the RC delay signal. Generates a disable signal that disables. That is, the application of the vehicle headlight signal applied to the first switch unit 230 is blocked. This prevents the negative terminal of the first light emitting unit 210 from being continuously (ie, continuously) connected to the ground power source. In this case, the direction indicator signal of the direction indicator signal input unit 270 is applied to the second switch unit 250. As a result, the second switch unit 250 is activated only in a logic high period of the pulse signal of the turn signal. That is, it is activated in the form of a pulse. As a result, the second switch unit 250 applies a pulsed ground power to the negative terminals of the first and second light emitting units 210 and 220.

As a result, the direction indicator signal of the pulse waveform is applied to the positive terminal of each of the first and second light emitting units 210 and 220, and the pulsed ground power is applied to the negative terminal by the second switch unit 250. Therefore, as shown in FIG. 3, both the first and second light emitting parts 210 and 220 emit light in the form of pulses. That is, it flickers. In this case, since the differential width signal is also applied to both terminals of the first light emitting unit 210, the light emission luminance of the first light emitting unit 210 may be increased.

Next, when the vehicle headlight signal is turned off and a pulsed turn signal signal is applied (refer to region K3 in FIG. 3), the pulsed turn signal signal is transmitted to the first light emitting part 210 by the turn signal signal input part 270. And both terminals of the second light emitting unit 220, the switch operation control unit 260, and the second switch unit 250.

Therefore, as described above, both the first light emitting unit 210 and the second light emitting unit 220 emit light. In this case, since the signal of the vehicle headlight is not applied, the first and second light emitting parts 210 and 220 emit light with the same brightness.

This embodiment is not limited to the above description, and various modifications are possible.

The following describes a modification of this embodiment with reference to the drawings.

4 is a circuit of a traffic light / turn signal circuit according to a first modified example of the embodiment of the present invention.

As shown in FIG. 4, the first light emitting unit 210 and the second light emitting unit 220 may be separated from each other as in the modified example. That is, only the first light emitting unit 210 may emit light when the traffic light signal is applied, and only the second light emitting unit 220 may emit light when the turn signal signal is applied.

In addition, a white light emitting diode may be used as the first light emitting unit 210 and a yellow light emitting diode may be used as the second light emitting unit 220. This allows you to use different colors for taillights and turn signals. That is, their colors can be used differently.

That is, only the white light emitting diode of the first light emitting unit 210 emits light when the traffic light signal is applied. For example, only the first to sixth light emitting diodes D1 to D6 of FIG. 4 emit light to emit white light when a traffic light signal is applied. However, when the turn signal signal is applied, the first to sixth light emitting diodes D1 to D6 of the first light emitting unit 210 are turned off, and only the yellow light emitting diodes of the second light emitting unit 220 emit light. . That is, only the ninth to sixteenth light emitting diodes D9 to D16 of FIG. 4 emit light to emit yellow. Through this, the color of light emitted between the tail light and the turn signal may be different.

In this case, the light emitting diodes of the first and second light emitting parts 210 and 220 are alternately disposed on the exterior cover 111 of the side mirror 110 so that only white light is emitted when the tail light is turned on, and the turn signal lamp is turned on. Only yellow light can be emitted. As described above with reference to FIG. 1, light emitting diodes of the first and second light emitting parts 210 and 220 are alternately disposed on the front surface of the exterior cover 111 of the side mirror 110, and Only the light emitting diode of the second light emitting unit 220 may be disposed.

The color is not limited to the above description, and various colors may be used according to the light emitting color of the light emitting diode.

The first and second light emitting parts 210 and 220 include a first light emitting diode part and a second light emitting diode part. Accordingly, the traffic light signal input unit 240 includes a diode D8 as shown in FIG. 4, and two resistors R3 and R4 connected in parallel between the first light emitting diode unit and the diode D8. And two resistors R5 and R6 connected in parallel between the second light emitting diode portion and the diode D8. The turn signal signal input unit 240 also includes a diode D12, and includes a resistor R1 connected between the first light emitting diode unit and the diode D12, the second light emitting diode unit, and the diode D12. A resistor R2 connected therebetween is provided.

Further, as a modification of the present embodiment, the circuit can be configured using a comparator.

5 is a circuit of a traffic light / turn signal circuit according to a second modified example of the embodiment of the present invention.

As shown in FIG. 5, the first lamp unit 230 controls the operation of the first switch unit 230 by comparing the vehicle signal lamp of the vehicle headlight signal input unit 240 with the disable signal of the switching operation controller 260. And a first comparator 280 for generating one operation control signal. At this time, the vehicle headlight signal is applied to both terminals of the first comparator 280, the disable signal is input to the negative terminal. In addition, both terminals of the first comparator 280 are applied with a voltage distribution of the power supply voltage VCC. In addition, a second comparator 290 for generating a second operation control signal for controlling the operation of the second switch unit 250 according to the turn signal signal. At this time, the turn signal signal is applied to the positive terminal of the second comparator 290, the power supply voltage (VCC) is voltage-divided is applied to the negative terminal.

Here, the first and second comparators 280 and 290 output a positive or negative voltage based on a difference between the voltage applied to the positive terminal and the voltage applied to the negative terminal using the voltage applied to the negative terminal as a reference voltage. That is, for example, when the first comparator 280 is described, a logic high signal is applied to both terminals, and a ground low power supply is applied to the negative terminal when only a differential width signal is applied. This causes the first comparator 280 to output a positive voltage of logic high. However, when the traffic light signal and the turn signal signal are simultaneously applied, a logic high signal is applied to both terminals, and a logic high signal is applied to the negative terminal. Therefore, the difference between the signals applied to the two terminals is reduced, so that the first comparator 280 outputs a negative voltage of logic low. Of course, the second comparator 290 performs the same operation.

As a result, only the first light emitting unit 210 may emit light when the traffic light signal is applied, and the first and second light emitting units 210 and 220 may blink simultaneously when the turn signal signal is applied.

In addition, not only this but a microcomputer can also be used.

6 is a circuit of a traffic light / turn signal circuit according to a third modified example of the embodiment of the present invention.

As shown in FIG. 6, the traffic light / turn signal circuit includes a microcomputer 300 between the traffic light signal input unit 240, the turn signal signal input unit 270, and the first and second switch units 230 and 250. Install. The microcomputer 300 includes first and second input terminals receiving the outputs of the traffic light signal input unit 240 and the turn signal signal input unit 270, and the first and second switch units 230 and 250, respectively. And first and second output stages for outputting a second output signal. The microcomputer 300 variously outputs signals of the first and second output terminals according to signals of the first and second input terminals. In the present modification, when a traffic light signal is applied, a logic high signal is output as the first output signal and a logic low signal is output as the second output signal. However, when the vehicle headlight signal and the pulse signal signal (ie, clock) signal are applied, both the first and second output signals output a pulse signal.

Through this, the first and second light emitting parts 210 and 220 may be used as taillights or direction indicators according to the driver's operation.

In the above-described embodiment, the resistor R1 may be referred to as a first resistor. Of course, it is possible to represent the diode D1 with the first diode.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment, Comprising: It should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

1 is a view showing the exterior of the vehicle according to an embodiment of the present invention, and the side miller having a vehicle traffic light / turn signal circuit installed thereon.

2 is a circuit of a traffic light / turn signal circuit according to an embodiment of the present invention.

3 is a waveform diagram illustrating an operation of a block / turn indicator circuit according to an exemplary embodiment.

4 is a circuit of a traffic light / turn signal circuit according to a first modified example of the embodiment of the present invention.

5 is a circuit of a traffic light / turn signal circuit according to a second modified example of the embodiment of the present invention.

6 is a circuit of a traffic light / turn signal circuit according to a third modified example of the embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

210, 220: light emitting unit 230, 250: switch unit

240: vehicle light signal input unit 260: switching operation control unit

270: direction indicator signal input unit 280, 290: comparator

300: micom

Claims (8)

A first light emitting part and a second light emitting part having a positive terminal and a negative terminal; A first switch unit for connecting the negative terminal of the first light emitting unit to a ground power source according to a state of a traffic light signal; A traffic light signal input unit configured to provide the traffic light signal to both terminals of the first light emitting unit and the first switch unit; A second switch unit for connecting the negative terminals of each of the first light emitting unit and the second light emitting unit to a ground power source according to a state of a turn signal signal; And A turn signal signal input unit configured to provide the turn signal signal to both terminals of the first light emitting unit and the second light emitting unit, and the second switch unit; A traffic light / turn signal circuit comprising a. The method of claim 1, And a switch operation control unit for disabling the operation of the first switch unit in accordance with the state of the turn signal signal. The method of claim 2, A first comparator configured to control an operation of the first switch unit according to an output signal of the vehicle headlight signal input unit and the switching operation controller; And a second comparator for controlling the operation of the second switch unit according to the output signal of the turn signal signal input unit. The method of claim 1, The first and second light emitting portion includes at least one light emitting diode, And the number and light emitting colors of the light emitting diodes of the first light emitting part and the light emitting diodes of the second light emitting part are different from each other. A first light emitting part and a second light emitting part having a positive (+) terminal and a negative (-) terminal; A traffic light signal input unit configured to provide a traffic light signal to both terminals of the first light emitting unit; A turn signal signal input unit which provides a turn signal signal to both terminals of the second light emitting unit; A first switch unit connecting the negative terminal of the first light emitting unit to a ground power source according to a first output signal; A second switch unit for connecting the negative terminals of each of the first light emitting unit and the second light emitting unit to a ground power source according to a second output signal; And A microcomputer for generating the first and second output signals for controlling the operations of the first and second switch units according to the traffic light signal and the turn signal signal; A traffic light / turn signal circuit comprising a. A side mirror having an exterior cover, A first light emitting part disposed in a front portion of the exterior cover of the side miller and having a positive (+) terminal and a negative (-) terminal, and a positive (+) terminal and a negative terminal disposed at a side of the exterior cover; A second light emitting unit having a second light source; a first switch unit for connecting the negative terminal of the first light emitting unit to a ground power source according to a state of a traffic light signal; A vehicle headlight signal input unit for providing a soaring signal, a second switch unit for connecting the negative terminals of each of the first light emitting unit and the second light emitting unit to ground power according to the state of the turn signal signal, and the first light emitting unit and the first light emitting unit; A traffic light / direction indicator circuit comprising a turn signal signal input section for providing the turn signal signal to both terminals of each of the two light emitting sections and the second switch section; Vehicle comprising a. The method of claim 6, And a switch operation control unit for disabling the operation of the first switch unit according to the state of the turn signal signal. The method of claim 7, wherein A first comparator configured to control an operation of the first switch unit according to an output signal of the vehicle headlight signal input unit and the switching operation controller; And a second comparator for controlling an operation of the second switch unit according to an output signal of the turn signal signal input unit.

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