CN217099823U - Tail lamp control circuit and tail lamp using same - Google Patents
Tail lamp control circuit and tail lamp using same Download PDFInfo
- Publication number
- CN217099823U CN217099823U CN202220148534.9U CN202220148534U CN217099823U CN 217099823 U CN217099823 U CN 217099823U CN 202220148534 U CN202220148534 U CN 202220148534U CN 217099823 U CN217099823 U CN 217099823U
- Authority
- CN
- China
- Prior art keywords
- resistor
- triode
- control circuit
- lamp
- series
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Abstract
The utility model discloses a tail lamp control circuit and use this tail lamp control circuit's tail lamp belongs to electronic circuit technical field. The tail lamp control circuit comprises a position lamp control circuit, a steering lamp control circuit, a brake lamp control circuit and a steering lamp switch circuit which are mutually connected in a circuit manner, and the normal open of the steering lamp control circuit is controlled and the alternate on-off of the steering lamp switch circuit is controlled in a matched manner, so that the use of a left steering flasher and a right steering flasher is omitted, and the left steering flashing and the right steering flashing can be ensured to be synchronous; the linkage control of the position lamps and the steering lamps is realized by controlling the alternate on-off of the position lamp control circuit and the steering lamp control circuit, and when the steering lamps are on, the position lamps on the same side are turned off, so that the driving safety is improved; the normal open of the position lamp control circuit is controlled and the alternate on-off of the brake lamp control circuit is controlled in a matched mode, so that the position lamp is normally on and the brake lamp flickers, and therefore the unlocking and vehicle searching functions are achieved.
Description
Technical Field
The utility model relates to an electronic circuit technical field, concretely relates to tail lamp control circuit and use this tail lamp control circuit's tail lamp.
Background
When the vehicle is to turn left or right, the turn signal lamp on the left or right side of the vehicle is energized to blink by operating the turn switch. In the prior art, a flasher needs to be separately arranged in a left steering lamp control circuit and a right steering lamp control circuit respectively, but the left flasher and the right flasher can not synchronize time when converting a steering signal into a flashing signal with flashing, so that the using effect is influenced, and the use cost of the steering lamp control circuit is increased due to the use of the flashers.
In addition, in order to improve the safety of the vehicle in running, the vehicle is provided with a position lamp (i.e., "width lamp"). Among the prior art, when the vehicle turned to, the indicator was opened, and the position lamp with one side was not automatic to be extinguished, and the normally open state of position lamp influences the scintillation suggestion effect of indicator, has certain potential safety hazard. When the automobile needs to be unlocked and the automobile needs to be searched, the position lamp can be expected to be normally on, the brake lamp can flash for prompting, but the existing automobile on the market does not have the unlocking and automobile searching function that the position lamp is normally on and the brake lamp is stroboscopic.
SUMMERY OF THE UTILITY MODEL
The utility model discloses can the synchronous scintillation to the indicator when turning to about ensureing to the realization is to the coordinated control of position lamp, indicator and brake light in order to promote driving safety and realize unblanking and seek the car function as the purpose, provides a tail lamp control circuit and uses this tail lamp control circuit's tail lamp.
To achieve the purpose, the utility model adopts the following technical proposal:
the tail lamp control circuit comprises a position lamp control circuit, a steering lamp control circuit, a brake lamp control circuit and a steering lamp switch circuit which are mutually connected through circuits, and linkage control over the position lamp, the steering lamp and the brake lamp is achieved by controlling on-off of each circuit loop.
As a preferred scheme of the utility model, position lamp control circuit includes position lamp circuit and switch circuit, position lamp circuit includes left position lamp circuit and right position lamp circuit, left side position lamp circuit includes triode Q6, resistance R4, R10, diode VD1, VD2, variable resistance RW2 and installs the left position lamp at the left rear side of vehicle, triode Q6's projecting pole concatenates the voltage source that can provide first input voltage behind the variable resistance RW2, the collecting electrode concatenates through switch circuit ground connection behind the left position lamp, the base is connected diode VD 2's positive pole, diode VD 2's negative pole is connected diode VD 1's negative pole and concatenates ground connection behind resistance R10; the anode of the diode VD1 is used as the left steering signal input end of the left position lamp circuit; one end of the resistor R4 is connected with the base electrode of the triode Q6, and the other end of the resistor R4 is connected with the emitter electrode of the triode Q6 after being connected with the variable resistor RW2 in series;
the right position lamp circuit comprises a triode Q3, resistors R5, R11, a diode VD3, a VD4, a variable resistor RW1 and a right position lamp arranged on the right rear side of the vehicle, wherein an emitting electrode of the triode Q3 is connected in series with the variable resistor RW1 and then is externally connected with a voltage source capable of providing the first input voltage, a collector electrode of the triode Q3 is connected in series with the right position lamp and then is grounded through the switch circuit, a base electrode of the triode Q3 is connected with the anode of the diode VD3, and a cathode of the diode VD3 is connected with the cathode of the diode VD4 and is connected in series with the resistor R11 and then is grounded; the anode of the diode VD4 is used as the right steering signal input end of the right position lamp circuit; one end of the resistor R5 is connected with the base electrode of the triode Q3, and the other end of the resistor R5 is connected with the emitter electrode of the triode Q3 after being connected with the variable resistor RW1 in series.
As a preferred scheme of the utility model, the position lamp circuit still includes intermediate position lamp circuit, intermediate position lamp circuit includes variable resistance RW3 and installs the intermediate position lamp in the intermediate position department of vehicle rear side, variable resistance RW 3's the external provision of one end the voltage source of first input voltage, the other end concatenates pass through behind the intermediate position lamp switching circuit ground connection.
As a preferable scheme of the present invention, the switch circuit includes a first switch circuit and a second switch circuit, the first switch circuit includes a transistor Q7, a resistor R14, R16, one end of the resistor R14 is externally connected to a voltage source capable of providing a second input voltage, the other end is connected to a base of the transistor Q7, an emitter of the transistor Q7 is grounded, and a collector is connected to the signal output end s1 of the position light circuit as the position light signal input end of the first switch circuit; the resistor R16 is connected between the base electrode and the emitter electrode of the triode Q7;
the second switch circuit comprises a triode Q8, a resistor R13 and a resistor R15, one end of the resistor R13 is externally connected with a signal source which can provide brake light signals with high and low levels which are input alternately, the other end of the resistor R13 is connected with the base electrode of the triode Q8, the emitting electrode of the triode Q8 is grounded, and the collector electrode is used as a position light signal input end of the second switch circuit and is connected with the signal output end of the position light circuit; the resistor R15 is connected between the base and emitter of the transistor Q8.
As an optimized scheme of the present invention, the turn light control circuit includes a left turn light control circuit and a right turn light control circuit, the left turn light control circuit includes a triode Q2, Q5, a resistor R1, R3, R7, R9, a capacitor C1, a variable resistor RZ1 and a left turn light group, an emitter of the triode Q2 is connected in series with a voltage source which is connected in series with the variable resistor RZ1 and then can provide a second input voltage, a collector is connected in series with the left turn light group and then is grounded through the turn light switch circuit, and a base is connected in series with a collector of the triode Q5 after the resistor R3; one end of the resistor R1 is connected with the base electrode of the triode Q2, and the other end of the resistor R1 is connected with the emitter electrode of the triode Q2 after being connected with the variable resistor RZ1 in series; the capacitor C1 is connected in parallel across the resistor R1;
the emitter of the triode Q5 is grounded, and the base of the triode Q5 is connected in series with the resistor R7 and then is externally connected with a voltage source capable of providing a third input voltage; the resistor R9 is connected between the base electrode and the emitter electrode of the triode Q5;
the right turn light control circuit comprises triodes Q1, Q4, resistors R2, R6, R8, R12, a capacitor C2, a variable resistor RZ2 and a right turn light group, an emitter of the triode Q1 is connected with the variable resistor RZ2 in series and then is externally connected with a voltage source capable of providing the second input voltage, a collector is connected with the right turn light group in series and then is grounded through the turn light switch circuit, and a base is connected with the resistor R6 and then is connected with a collector of the triode Q4; one end of the resistor R2 is connected with the base electrode of the triode Q1, and the other end of the resistor R2 is connected with the emitter electrode of the triode Q1 after being connected with the variable resistor RZ2 in series; the capacitor C2 is connected in parallel to two ends of the resistor R2;
the emitter of the triode Q4 is grounded, and the base of the triode Q4 is connected in series with the resistor R8 and then externally connected with a voltage source capable of providing the third input voltage; the resistor R12 is connected between the base and emitter of the transistor Q4.
As a preferred scheme of the present invention, the turn signal lamp switch circuit includes a transistor Q10, a resistor R18, and a resistor R20 connected in darlington, a collector of the transistor Q10 is connected to the signal output terminal s2 of the turn signal lamp control circuit, an emitter is grounded, and a base is connected in series to the resistor R18 and then is externally connected to a signal source for providing a PWM pulse width modulation signal; the resistor R20 is connected between the base and emitter of the transistor Q10.
As an optimized scheme of the utility model, the brake light control circuit includes triode Q9, variable resistance RD1, brake banks, resistance R17, R19 that darlington connects, the external voltage source that can provide second input voltage of one end of variable resistance RD1 concatenates behind the brake banks connect triode Q9's collecting electrode, triode Q9's projecting pole ground connection, the base concatenates external signal source that can provide the brake light signal behind the resistance R17, resistance R19 connects between triode Q9's base and the projecting pole.
The utility model also provides a tail lamp, laid in the tail lamp control circuit.
The utility model can control the normal open of the turn light control circuit and control the alternate on-off of the turn light switch circuit in a matching way, thereby saving the use of left and right turn flashers and ensuring the left and right turn flashing synchronization; the linkage control of the position lamps and the steering lamps is realized by controlling the alternate on-off of the position lamp control circuit and the steering lamp control circuit, and when the steering lamps are on, the position lamps on the same side are turned off, so that the driving safety is improved; the normal open of the position lamp control circuit is controlled and the alternate on-off of the brake lamp control circuit is controlled in a matched mode, so that the position lamp is normally on and the brake lamp flickers, and therefore the unlocking and vehicle searching functions are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic circuit structure diagram of a tail lamp control circuit provided in an embodiment of the present invention;
fig. 2 is a logic block diagram of the tail lamp lighting control.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the utility model provides a pair of tail lamp control circuit, as shown in fig. 1, including mutual circuit connection's position lamp control circuit, indicator light control circuit, brake light control circuit 500 and indicator light switch circuit 600. Specifically, the position lamp control circuit comprises a position lamp circuit and a switch circuit 700, the position lamp circuit comprises a left position lamp circuit 100 and a right position lamp circuit 200, the left position lamp circuit comprises a triode Q6, a resistor R4, a resistor R10, a diode VD1, a VD2, a variable resistor RW2 and a left position lamp 1 installed on the left rear side of the vehicle, an emitter of the triode Q6 is connected in series with the variable resistor RW2 and then is externally connected with a voltage source capable of providing a first input voltage (indicated by "TAIL _ 5V" in fig. 1), a collector is connected in series with the left position lamp 1 and then is grounded through the switch circuit 700, a base is connected with an anode of the diode VD2, a cathode of the diode VD2 is connected with a cathode of the diode VD1 and is connected in series with the resistor R10 and then is grounded; the anode of the diode VD1 is used as the left steering signal input end 101 of the left position lamp circuit; one end of the resistor R4 is connected with the base electrode of the triode Q6, and the other end of the resistor R4 is connected with the emitter electrode of the triode Q6 after being connected with the variable resistor RW2 in series;
the right position lamp circuit 200 comprises a triode Q3, resistors R5, R11, a diode VD3, a diode VD4, a variable resistor RW1 and a right position lamp 2 arranged on the right rear side of the vehicle, wherein an emitting electrode of the triode Q3 is connected with the variable resistor RW1 in series and then is externally connected with a voltage source capable of providing first input voltage, a collector electrode of the triode Q3 is connected with the right position lamp in series and then is grounded through a switch circuit 700, a base electrode of the triode Q3 is connected with the anode of the diode VD3, the cathode of the diode VD3 is connected with the cathode of the diode VD4 and is connected with the ground after being connected with the resistor R11 in series; the anode of the diode VD4 serves as the right turn signal input terminal 201 of the right position light circuit 200; one end of the resistor R5 is connected with the base electrode of the triode Q3, and the other end is connected with the emitter electrode of the triode Q3 after being connected with the variable resistor RW1 in series.
Specifically, as shown in fig. 1, the position light circuit further includes an intermediate position light circuit including a variable resistor RW3 and an intermediate position light 3 installed at an intermediate position on the rear side of the vehicle, wherein one end of the variable resistor RW3 is externally connected to a voltage source for providing a first input voltage, and the other end thereof is connected in series with the intermediate position light 3 and then grounded through a switching circuit 700.
As shown in fig. 1, the switching circuit 700 includes a first switching circuit and a second switching circuit, the first switching circuit includes a transistor Q7, resistors R14 and R16, one end of the resistor R14 is externally connected to a voltage source capable of providing a second input voltage (denoted by "VIN _ 12V" in fig. 1), the other end is connected to a base of a transistor Q7, an emitter of the transistor Q7 is grounded, and a collector of the resistor R14 is connected to the signal output terminal s1 of the position light circuit as a position light signal input terminal of the first switching circuit; the resistor R16 is connected between the base electrode and the emitter electrode of the triode Q7;
the second switch circuit comprises a triode Q8, resistors R13 and R15, one end of the resistor R13 is externally connected with a signal source which can provide BRAKE light signals (represented by 'BRAKE _ 3.3V' in figure 1) with high and low levels which are alternately input, the other end of the resistor R13 is connected with the base electrode of the triode Q8, the emitting electrode of the triode Q8 is grounded, and the collector electrode is used as a position light signal input end of the second switch circuit and is connected with the signal output end s1 of the position light circuit; the resistor R15 is connected between the base and emitter of the transistor Q8.
The turn light control circuit comprises a left turn light control circuit 300 and a right turn light control circuit 400, the left turn light control circuit 300 comprises a triode Q2, a Q5, a resistor R1, a resistor R3, a resistor R7, a resistor R9, a capacitor C1, a variable resistor RZ1 and a left turn light group 4, an emitter of the triode Q2 is connected with the variable resistor RZ1 in series and then is externally connected with a voltage source capable of providing second input voltage (represented by 'VIN _ 12V' in figure 1), a collector is connected with the left turn light group 4 in series and then is grounded through a turn light switch circuit 600, and a base is connected with a collector of the triode Q5 in series and then is connected with the resistor R3; one end of the resistor R1 is connected with the base electrode of the triode Q2, and the other end of the resistor R1 is connected with the emitter electrode of the triode Q2 after being connected with the variable resistor RZ1 in series; the capacitor C1 is connected in parallel to two ends of the resistor R1;
the emitter of the triode Q5 is grounded, and the base is connected in series with the resistor R7 and then externally connected with a voltage source capable of providing a third input voltage (indicated by "LEFT _ 3.3V" in fig. 1); the resistor R9 is connected between the base electrode and the emitter electrode of the triode Q5;
the right turn light control circuit 400 comprises triodes Q1, Q4, resistors R2, R6, R8, R12, a capacitor C2, a variable resistor RZ2 and a right turn light group 5, wherein an emitter of the triode Q1 is connected with the variable resistor RZ2 in series and then is externally connected with a voltage source capable of providing second input voltage, a collector is connected with the right turn light group 5 in series and then is grounded through a turn light switch circuit 600, and a base is connected with the collector of the triode Q4 in series and then is connected with a resistor R6; one end of the resistor R2 is connected with the base electrode of the triode Q1, and the other end of the resistor R2 is connected with the emitter electrode of the triode Q1 after being connected with the variable resistor RZ2 in series; the capacitor C2 is connected in parallel to two ends of the resistor R2;
the emitter of the triode Q4 is grounded, and the base is connected in series with the resistor R8 and then externally connected with a voltage source capable of providing a third input voltage (indicated by "RIGHT _ 3.3V" in fig. 1); resistor R12 is connected between the base and emitter of transistor Q4.
The turn light switch circuit 600 comprises a triode Q10, a resistor R18 and a resistor R20 which are connected in a Darlington mode, wherein the collector of the triode Q10 is connected with the signal output end s2 of the turn light control circuit, the emitter is grounded, and the base is connected with the resistor R18 in series and then is externally connected with a signal source for providing a PWM (pulse width modulation) signal; resistor R20 is connected between the base and emitter of transistor Q10.
The stoplight control circuit 500 comprises a transistor Q9, a variable resistor RD1, a stoplight group 6, resistors R17 and R19 which are connected in a darlington manner, wherein one end of the variable resistor RD1 is externally connected with a voltage source capable of providing a second input voltage (indicated by 'VIN _ 12V' in fig. 1), the other end of the variable resistor RD1 is connected with a collector of the transistor Q9 after being connected in series with the stoplight group 6, an emitter of the transistor Q9 is grounded, a base of the variable resistor RD 17 is externally connected with a signal source capable of providing a stoplight signal (indicated by 'BRAKE _ 3.3V' in fig. 1), and the resistor R19 is connected between a base and an emitter of the transistor Q9.
In the above technical solution, signals input to the tail lamp control circuit, i.e., the VIN _12V, TAIL _5V, LEFT _3.3V, RIGHT _3.3V, PWM pulse width modulation signal (denoted as "LR _ PWM" in fig. 1 and fig. 2), the BRAKE _3.3V and the GND ground, are provided by the main control chip, and there are many optional main control chips, so specific brands and models of the main control chip adopted in this embodiment are not described herein.
The tail lamp control circuit provided by the embodiment can realize the following 5 functions by matching the main control chip:
function 1: when the vehicle is started, the position lamp is always on;
function 2: when the steering lamp flickers, the position lamps on the same side are turned off;
function 3: when stepping down the brake, brake light and position lamp are bright, and when loosening the brake, the brake light goes out, and the position lamp keeps normally shining function 4: when the unlocking and vehicle-searching function is started, the position lamp is normally on, and the brake lamp flickers;
function 5: when the locking car-searching function is started, the position lamp flickers;
function 6: the left and right steering lamp sets flicker synchronously.
The following describes in detail the principle of a method for implementing each function by using the main control chip in cooperation with the tail light control circuit with reference to fig. 1 and 2:
method for realizing function 1
When the vehicle starts, the position light switch in fig. 2 is closed, the main control chip outputs VIN _12V (i.e., the second input voltage) to the first switch circuit in the switch circuits, and simultaneously outputs TAIL _5V (i.e., the first input voltage) to the position light control circuit (including the left position light control circuit, the right position light control circuit, and the middle position light control circuit), and outputs a GND ground signal to the first switch circuit, the NPN transistor Q7 in the first switch circuit is in a conducting state at this time, the middle position light 3 is normally on, and the base voltage of the PNP transistor Q6 is the divided voltage of the resistor R4, the diode VD2, and the resistor R10 (the divided voltage V (R10/(R4 + R10)) (2-0.6) ═ 2.2K/(10K +2.2K)) (2-0.6) ═ 0.7V, where 2.2K is the resistance of R10, 10K is the resistance of R4, and "Q2" is the emitting pole voltage 6, "0.6" is the loss voltage of Q6), the base voltage of the transistor Q6 is much smaller than the emitter voltage (2V), so the transistor Q6 is turned on, and the left-position lamp set 1 is normally on; similarly, at this time, the base voltage of the PNP transistor Q3 is the divided voltage of the resistor R5, the diode VD3, and the resistor R11 (the divided voltage V is (R11/(R5+ R11)) × (2-0.6) ═ 2.2K/(10K +2.2K)) × (2-0.6) × 0.7V, where 2.2K is the resistance of R11, 10K is the resistance of R5, "2" is the emitter voltage of Q3, "0.6" is the loss voltage of Q3, and the base voltage of the transistor Q3 is much smaller than the emitter voltage (2V), so the transistor Q3 is turned on, and the right position lamp group 2 is also normally on.
Second, implementation method of function 2
After the vehicle is started, the position light is normally on, when the vehicle turns (for example, when the vehicle turns to the LEFT), the LEFT turn switch in fig. 2 is closed, the central control chip outputs a LEFT _3.3V signal to the LEFT turn light control circuit, outputs a PWM pulse width modulation signal (indicated by "LR _ PWM" in fig. 1) to the turn light switch circuit, and outputs VIN _12V to the LEFT turn light control circuit, the triode Q2 is electrically turned on, when the LR _ PWM outputs a high level, the triode Q10 in the turn light switch circuit is turned on, the LEFT turn light group 1 is on, when the LR _ PWM outputs a low level, the triode Q10 is turned off, the LEFT turn light group 1 is turned off, and when the LR _ PWM outputs a low level, the LEFT turn light flickers through the alternate on and off of the Q10.
After LEFT _3.3V is input, the transistor Q5 is turned on, because the transistor Q2 is also turned on at this time, the diode VD1 is also turned on, the potential at the point of the resistor R10 becomes V (R10/(R10+ R4) × 12) ═ 2.16V at this time, the potential at the base of the transistor Q6 is raised, and Q6 is therefore turned off, so that the function of turning off the position lamp on the same side when the LEFT turn signal lamp flickers is realized.
When the right turn light flickers, the control principle that the position lights on the same side are turned off is the same as the control principle that the position lights on the same side are turned off when the left turn light flickers, so the details are not repeated herein.
Third, function 3 realizing method
After the vehicle is started, the position lamp is normally on, when a BRAKE is stepped on, namely the BRAKE lamp switch in fig. 2 is closed, the main control chip outputs a BRAKE lamp signal (BRAKE _3.3V) to the BRAKE lamp control circuit at the moment, the triode Q9 connected with darlington is conducted to the ground, and the BRAKE lamp group 6 is accordingly turned on; when the brake is released, i.e. the brake lamp switch in fig. 2 is turned off, the master control chip no longer outputs a brake lamp signal to the brake lamp control circuit at this time, the transistor Q9 is thus turned off, and the brake lamp set 6 is turned off because it cannot be conducted to the ground.
Method for realizing function 4
After the unlocking and vehicle finding functions are started, namely after the unlocking and vehicle finding switch in fig. 2 is closed, the central control chip outputs a TAIL _5V signal to the position lamp control circuit and outputs a VIN _12V signal to the second switch circuit in the switch circuit, because the triode Q7 is conducted, the triodes Q3 and Q6 are conducted, and the left position lamp group 1, the right position lamp group 2 and the middle position lamp group 3 are normally on. In addition, the central control chip outputs a VIN _12V signal to the BRAKE lamp control circuit, meanwhile, a BRAKE _3.3V signal is alternately output to the BRAKE lamp control circuit, when a BRAKE _3.3V signal is input, the triode Q9 is conducted, the BRAKE lamp set 6 is lightened, when no BRAKE _3.3V signal is input, the triode Q0 is cut off, and the BRAKE lamp set 6 is extinguished, so that the functions that the position lamp is always lightened and the BRAKE lamp flickers when the automobile is unlocked and searched are realized.
Fifth, implementation method of function 5
When the locking car-searching function is started, namely after the locking car-searching switch in fig. 2 is closed, the central control chip outputs a TAIL _5V signal to the left position lamp control circuit and the right position lamp control circuit, and alternately outputs a BRAKE _3.3V signal to the second switch circuit in the switch circuits, as shown in fig. 1, when a BRAKE _3.3V signal is input, a triode Q8 in the second switch circuit is conducted, and the left position lamp group 1, the right position lamp group 2 and the middle position lamp group 3 are connected to the ground and are lighted; when no BRAKE _3.3V signal is input, the triode Q8 is cut off, and the left position lamp group 1, the right position lamp group 2 and the middle position lamp group 3 are turned off because the left position lamp group, the right position lamp group and the middle position lamp group cannot be switched on to the ground, so that the function of position lamp flickering when the vehicle is locked and searched is realized.
Sixth, implementation method of function 6
When the LEFT and RIGHT turn signal lamp sets need to flicker synchronously, the LEFT turn switch and the RIGHT turn switch in fig. 2 are closed, the central control chip outputs LEFT _3.3V signals to the LEFT turn signal control circuit, outputs RIGHT _3.3V signals to the RIGHT turn signal control circuit, and simultaneously provides VIN _12V signals to the LEFT turn signal control circuit and the RIGHT turn signal control circuit, and outputs LR _ PWM signals to the turn signal switch circuit, the triodes Q1, Q2, Q4 and Q5 are all turned on, the LR _ PWM signals control the alternating conduction of the darlington connected triode Q10, when Q10 is turned on, the LEFT turn signal lamp set 4 and the RIGHT turn signal lamp set 5 are turned on to the ground simultaneously, and when Q10 is turned off, the LEFT turn signal lamp set 4 and the RIGHT turn signal lamp set 5 are not turned on to the ground and are turned off simultaneously. Because the turning-on or turning-off of the left steering lamp group 4 and the right steering lamp group 5 is controlled by the same PWM signal, synchronous flicker is realized.
To sum up, the utility model discloses a multi-voltage control has realized the coordinated control to position lamp, indicator, brake light.
The utility model also provides a tail lamp has laid foretell tail lamp control circuit in this tail lamp.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (8)
1. A tail lamp control circuit is characterized by comprising a position lamp control circuit, a turn lamp control circuit, a brake lamp control circuit and a turn lamp switch circuit which are mutually connected through circuits, and linkage control over a position lamp, a turn lamp and a brake lamp is achieved by controlling the on-off of each circuit loop.
2. The tail lamp control circuit according to claim 1, wherein the position lamp control circuit comprises a position lamp circuit and a switch circuit, the position lamp circuit comprises a left position lamp circuit and a right position lamp circuit, the left position lamp circuit comprises a triode Q6, resistors R4, R10, diodes VD1, VD2, a variable resistor RW2 and a left position lamp installed on the left rear side of the vehicle, an emitter of the triode Q6 is connected in series with the variable resistor RW2 and then externally connected with a voltage source capable of providing a first input voltage, a collector is connected in series with the left position lamp and then grounded through the switch circuit, a base is connected with an anode of the diode VD2, a cathode of the diode VD2 is connected with a cathode of the diode VD1 and is connected in series with the resistor R10 and then grounded; the anode of the diode VD1 is used as the left steering signal input end of the left position lamp circuit; one end of the resistor R4 is connected with the base electrode of the triode Q6, and the other end of the resistor R4 is connected with the emitter electrode of the triode Q6 after being connected with the variable resistor RW2 in series;
the right position lamp circuit comprises a triode Q3, resistors R5, R11, a diode VD3, a VD4, a variable resistor RW1 and a right position lamp arranged on the right rear side of the vehicle, wherein an emitting electrode of the triode Q3 is connected in series with the variable resistor RW1 and then is externally connected with a voltage source capable of providing the first input voltage, a collector electrode of the triode Q3 is connected in series with the right position lamp and then is grounded through the switch circuit, a base electrode of the triode Q3 is connected with the anode of the diode VD3, and a cathode of the diode VD3 is connected with the cathode of the diode VD4 and is connected in series with the resistor R11 and then is grounded; the anode of the diode VD4 is used as the right steering signal input end of the right position lamp circuit; one end of the resistor R5 is connected with the base electrode of the triode Q3, and the other end of the resistor R5 is connected with the emitter electrode of the triode Q3 after being connected with the variable resistor RW1 in series.
3. The tail light control circuit according to claim 2, wherein the position light circuit further includes an intermediate position light circuit, the intermediate position light circuit includes a variable resistor RW3 and an intermediate position light installed at an intermediate position on the rear side of the vehicle, one end of the variable resistor RW3 is externally connected to a voltage source that can provide the first input voltage, and the other end is connected in series with the intermediate position light and then grounded through the switch circuit.
4. A tail lamp control circuit according to claim 2 or 3, characterized in that the switch circuit comprises a first switch circuit and a second switch circuit, the first switch circuit comprises a transistor Q7, a resistor R14, a resistor R16, one end of the resistor R14 is externally connected with a voltage source capable of providing a second input voltage, the other end is connected with a base of the transistor Q7, an emitter of the transistor Q7 is grounded, and a collector of the resistor R is connected with the signal output end s1 of the position lamp circuit as a position lamp signal input end of the first switch circuit; the resistor R16 is connected between the base electrode and the emitter electrode of the triode Q7;
the second switch circuit comprises a triode Q8, a resistor R13 and a resistor R15, one end of the resistor R13 is externally connected with a signal source which can provide brake light signals with high and low levels which are input alternately, the other end of the resistor R13 is connected with the base electrode of the triode Q8, the emitting electrode of the triode Q8 is grounded, and the collector electrode is used as a position light signal input end of the second switch circuit and is connected with the signal output end of the position light circuit; the resistor R15 is connected between the base and emitter of the transistor Q8.
5. The taillight control circuit of claim 1, wherein the turn signal lamp control circuit comprises a left turn signal lamp control circuit and a right turn signal lamp control circuit, the left turn signal lamp control circuit comprises a transistor Q2, a transistor Q5, a resistor R1, a resistor R3, a resistor R7, a resistor R9, a capacitor C1, a variable resistor RZ1 and a left turn signal lamp set, an emitter of the transistor Q2 is connected in series with the variable resistor RZ1 and then externally connected with a voltage source capable of providing a second input voltage, a collector is connected in series with the left turn signal lamp set and then connected with ground through the turn signal lamp switch circuit, and a base is connected in series with the resistor R3 and then connected with a collector of the transistor Q5; one end of the resistor R1 is connected with the base electrode of the triode Q2, and the other end of the resistor R1 is connected with the emitter electrode of the triode Q2 after being connected with the variable resistor RZ1 in series; the capacitor C1 is connected in parallel across the resistor R1;
the emitter of the triode Q5 is grounded, and the base of the triode Q5 is connected in series with the resistor R7 and then is externally connected with a voltage source capable of providing a third input voltage; the resistor R9 is connected between the base electrode and the emitter electrode of the triode Q5;
the right turn light control circuit comprises triodes Q1, Q4, resistors R2, R6, R8, R12, a capacitor C2, a variable resistor RZ2 and a right turn light group, an emitter of the triode Q1 is connected with the variable resistor RZ2 in series and then is externally connected with a voltage source capable of providing the second input voltage, a collector is connected with the right turn light group in series and then is grounded through the turn light switch circuit, and a base is connected with the resistor R6 and then is connected with a collector of the triode Q4; one end of the resistor R2 is connected with the base electrode of the triode Q1, and the other end of the resistor R2 is connected with the emitter electrode of the triode Q1 after being connected with the variable resistor RZ2 in series; the capacitor C2 is connected in parallel across the resistor R2;
the emitter of the triode Q4 is grounded, and the base of the triode Q4 is connected in series with the resistor R8 and then externally connected with a voltage source capable of providing the third input voltage; the resistor R12 is connected between the base and emitter of the transistor Q8.
6. The taillight control circuit as claimed in claim 1 or 5, wherein the turn signal switch circuit comprises a transistor Q10, a resistor R18, and a resistor R20 connected in darlington, wherein a collector of the transistor Q10 is connected to the signal output terminal s2 of the turn signal control circuit, an emitter is grounded, and a base is connected in series with the resistor R18 and then externally connected to a signal source for providing a PWM pulse width modulation signal; the resistor R20 is connected between the base and emitter of the transistor Q10.
7. The taillight control circuit as claimed in claim 1, wherein the stoplight control circuit comprises a transistor Q9, a variable resistor RD1, a stoplight set, resistors R17 and R19 connected in a darlington manner, one end of the variable resistor RD1 is externally connected with a voltage source capable of providing a second input voltage, the other end of the variable resistor RD1 is connected with a collector of the transistor Q9 after being connected in series with the stoplight set, an emitter of the transistor Q9 is grounded, a base of the variable resistor RD 17 is externally connected with a signal source capable of providing a stoplight signal, and the resistor R19 is connected between the base and the emitter of the transistor Q9.
8. A rear lamp characterized in that a rear lamp control circuit as claimed in any one of claims 1 to 7 is arranged in the rear lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220148534.9U CN217099823U (en) | 2022-01-19 | 2022-01-19 | Tail lamp control circuit and tail lamp using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220148534.9U CN217099823U (en) | 2022-01-19 | 2022-01-19 | Tail lamp control circuit and tail lamp using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217099823U true CN217099823U (en) | 2022-08-02 |
Family
ID=82596242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220148534.9U Active CN217099823U (en) | 2022-01-19 | 2022-01-19 | Tail lamp control circuit and tail lamp using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217099823U (en) |
-
2022
- 2022-01-19 CN CN202220148534.9U patent/CN217099823U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106853792B (en) | Method for controlling automobile steering lamp to generate time sequence lighting effect | |
| CN104210416B (en) | A kind of automobile daytime driving lamp system | |
| CN217099823U (en) | Tail lamp control circuit and tail lamp using same | |
| CN103241165B (en) | Fog lamp control system | |
| CN217116472U (en) | Steering and daytime running light control circuit and integrated lamp using same | |
| CN105430798A (en) | Daytime running outline marker lamp system of motor vehicle | |
| JPS6175077A (en) | Luminaire for bicycle | |
| CN208445788U (en) | Vehicle fog lamp driving circuit | |
| CN208886661U (en) | A kind of automobile tail light LED module and its integrated circuit | |
| JP3238893U (en) | Automotive side mirror turn signal control system | |
| CN111405707B (en) | LED (light-emitting diode) floodlight circuit for vehicle | |
| CN205916026U (en) | Be applied to control structure ware of vehicle lamp | |
| CN206118138U (en) | Auttombilism room time delay lighting control circuit | |
| CN216508752U (en) | Light compensation lighting system for two-wheeled electric vehicle and electric vehicle | |
| CN219227887U (en) | Automatic light control circuit | |
| CN213694232U (en) | Steering auxiliary circuit suitable for car lamp | |
| CN217917768U (en) | Signal lamp LED dimming control circuit without MCU | |
| CN218006566U (en) | Buck-boost circuit-based low-side NMOS drive control system | |
| CN212447886U (en) | Electric motor car brake lamp control system | |
| CN208164885U (en) | A kind of automobile bodies interior lighting circuit | |
| JPH0521486Y2 (en) | ||
| CN2542511Y (en) | Automatic switching controller of headlight for vehicles meet at night | |
| CN208424844U (en) | Vehicle lamp band mechanism and system | |
| KR0132488Y1 (en) | Automatic lighting circuit for a reading light | |
| CN203880565U (en) | Steering lamp with auxiliary lighting function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |