CN220210641U - Automobile braking position lamp control circuit - Google Patents
Automobile braking position lamp control circuit Download PDFInfo
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- CN220210641U CN220210641U CN202223369593.8U CN202223369593U CN220210641U CN 220210641 U CN220210641 U CN 220210641U CN 202223369593 U CN202223369593 U CN 202223369593U CN 220210641 U CN220210641 U CN 220210641U
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims description 42
- 239000003990 capacitor Substances 0.000 claims description 33
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a control circuit of an automobile brake position lamp, which comprises: the system comprises a first access module, a second access module, a public access module, a switch constant current driving module and a signal lamp group, wherein the input end of the first access module is used for being connected with a braking signal of a vehicle master controller, the input end of the second access module is used for being connected with a position signal of the vehicle master controller, the output ends of the first access module and the second access module are both connected to the input end of the public access module, the public access module is used for stabilizing the braking signal or the position signal, the output end of the public access module is connected to the voltage input end and the control input end of the switch constant current driving module, and the input end of the public access module is connected to the anode end of the signal lamp group. The automobile brake position lamp control circuit solves the problem that in the prior art, the automobile position signal lamp and the automobile brake signal lamp are not set into a group of lamps together, so that the lamp group is wasted.
Description
Technical Field
The utility model relates to the field of automobile lamp control, in particular to an automobile braking position lamp control circuit.
Background
The automobile includes an automobile position signal lamp, an automobile brake signal lamp, and the like. The automobile position signal lamp is used for reminding the driver of coming vehicles and is suitable for driving at night. The automobile brake signal lamp is used for reminding an coming automobile to pay attention to the fact that a front automobile is braked. The automobile can orderly walk on the lane.
In order to realize the control of the automobile position signal lamp and the automobile brake signal lamp in the prior art, an automobile position signal lamp control circuit and an automobile brake signal lamp control circuit are respectively provided. The automobile position signal lamp control circuit and the automobile brake signal lamp control circuit are respectively arranged, namely: the automobile position signal lamp control circuit is used for independently controlling the automobile position signal lamp; the automobile brake signal lamp control circuit controls the automobile brake signal lamp independently.
The automobile position signal lamp control circuit comprises: the position control chip is used for receiving a position signal output by the automobile master controller, the position control chip is connected to the control end of the position switch circuit, and the automobile position signal lamp is communicated to a power supply through the position switch circuit, so that the operation of the automobile position signal lamp is controlled through the position control chip and the position switch circuit when the automobile master controller outputs the position signal.
The automobile brake signal lamp control circuit comprises: the automobile brake signal lamp is connected to a power supply through the brake switch circuit, so that the operation of the automobile brake signal lamp is controlled through the brake control chip and the brake switch circuit when the automobile master controller outputs the position signal.
The signal lamp control circuit and the automobile brake signal lamp control circuit can control an automobile position signal lamp and an automobile brake signal lamp respectively, but still have the following problems:
because the automobile must send out the braking signal when the automobile brakes, also provide the position signal of car simultaneously, remind the front automobile of coming the automobile in braking, also reminded the position of front automobile simultaneously, consequently prior art does not set up automobile position signal lamp and automobile braking signal lamp jointly into a set of lamp, leads to the waste of banks of lamps, is unfavorable for practicing thrift the cost, needs different control circuit simultaneously, leads to control circuit's waste.
Disclosure of Invention
The utility model provides an automobile brake position lamp control circuit, which solves the problem of lamp group waste caused by the fact that an automobile position signal lamp and an automobile brake signal lamp are not arranged together as a group of lamps in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model discloses a control circuit of an automobile brake position lamp, which comprises: the system comprises a first access module, a second access module, a public access module, a switch constant current driving module and a signal lamp group, wherein the input end of the first access module is used for being connected with a braking signal of an automobile master controller, the input end of the second access module is used for being connected with a position signal of the automobile master controller, the output ends of the first access module and the second access module are both connected to the input end of the public access module, the public access module is used for stabilizing the braking signal or the position signal, the output end of the public access module is connected to a voltage input end and a control input end of the switch constant current driving module, the input end of the public access module is connected to an anode end of the signal lamp group, and the switch output end of the switch constant current driving module is used for being connected to a cathode end of the signal lamp group.
Preferably, the automobile brake position lamp control circuit further includes: the first end of the voltage stabilizing output module is connected to the anode end of the signal lamp group, the second end of the voltage stabilizing output module is connected to the switch output end of the switch constant current driving module, and the third end of the voltage stabilizing output module is connected to the cathode end of the signal lamp group.
Preferably, the regulated output module includes: the voltage stabilizing diode D9, the resistor R23, the capacitor C15, the capacitor C16, the resistor R13 and the inductor L1 are connected to form a first end of the voltage stabilizing output module after one end of the resistor R23 and one end of the resistor R13 are connected, the other end of the resistor R23 is connected to the positive electrode of the capacitor C16, the negative electrode of the capacitor C16 and the negative electrode of the voltage stabilizing diode D9 are connected to the positive electrode of the capacitor C15, the negative electrode of the capacitor C15 is grounded, the first end of the inductor L1 is connected to the negative electrode of the capacitor C15, the first end of the inductor L1 is the second end of the voltage stabilizing output module, and the second end of the inductor L1 is connected with the other end of the resistor R13 to form a third end of the voltage stabilizing output module.
Preferably, the automobile brake position lamp control circuit further includes: the detection module, detection module includes: the detection resistor R6 and the switch unit, the first end of the detection resistor R6 is connected to the detection end of the switch constant current driving module, the first end of the detection resistor R6 is a first detection point, the control end of the switch unit is connected to the input end of the first access module, the second end of the detection resistor R6 is grounded through the switch unit, and the second end of the detection resistor R6 is a second detection point.
Preferably, the switching unit includes: the MOS tube Q1, the diode D3 and the resistor R4, the positive pole of the diode D3 is connected to the input end of the first access module, the cathode resistor R4 of the diode D3 is connected to the grid electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is grounded, and the source electrode of the MOS tube Q1 is connected to the second end of the detection resistor R6.
Preferably, the switching unit further includes: the anode of the zener diode ZD1, one end of the resistor R6 and the anode of the capacitor C10 are all connected to the grid electrode of the MOS transistor Q1, and the cathode of the zener diode ZD1, the other end of the resistor R6 and the cathode of the capacitor C10 are all grounded.
Preferably, the first access module and the second access module each include: the anode of the diode D1 is the input end of the first access module or the second access module, and the cathode of the diode D1 is the output end of the first access module or the second access module.
Preferably, the public access module includes: the capacitor C4 positive electrode is connected to the voltage input end and the control input end of the switch constant current driving module, and the negative electrode of the capacitor C4 is grounded.
Compared with the prior art, the utility model has the following beneficial effects:
the first access module and the second access module are arranged to respectively access the position signal or the brake signal (the position signal and the brake signal are equal to the voltage) of the automobile master controller, the public access module is used for stabilizing the accessed signal voltage and then outputting the appointed signal voltage, the appointed signal voltage provides the working voltage and the PWM signal for the switch constant current driving module, the brightness of the lamp group can be regulated by the appointed signal voltage, namely, the master controller can achieve the dimming effect by controlling the output position signal or the brake signal. And then after the control input end of the switch constant current driving module receives the signal, the switch output end of the switch constant current driving module outputs appointed constant voltage, and the voltage stabilizing output module achieves the effect of stabilizing the voltage at two ends of the signal lamp group, thereby achieving the effect of controlling the voltage at two ends of the signal lamp group to be constant and ensuring the brightness of the signal lamp group to be appointed.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a circuit diagram of an automotive brake position lamp control circuit.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model more clear and easy to understand, the present utility model is further described below with reference to the accompanying drawings and the detailed description:
as shown in fig. 1, the present utility model discloses a control circuit for a car brake position lamp, comprising: the system comprises a first access module, a second access module, a public access module, a switch constant current driving module U1 (SL 9003 type chip) and a signal lamp group, wherein the input end of the first access module is used for being connected with a braking signal of a vehicle master controller, the input end of the second access module is used for being connected with a position signal of the vehicle master controller, the output ends of the first access module and the second access module are connected to the input end of the public access module, the public access module is used for stabilizing the braking signal or the position signal, the output end of the public access module is connected to a voltage input end VDD and a control input end DIM of the switch constant current driving module U1, the input end of the public access module is connected to an anode end of the signal lamp group, and a switch output end SW of the switch constant current driving module U1 is used for being connected to a cathode end of the signal lamp group.
The automobile brake position lamp control circuit further includes: the first end of the voltage stabilizing output module is connected to the anode end of the signal lamp group, the second end of the voltage stabilizing output module is connected to the switch output end SW of the switch constant current driving module U1, and the third end of the voltage stabilizing output module is connected to the cathode end of the signal lamp group. The voltage between the anode end and the cathode end of the signal lamp group is stabilized, so that the signal lamp group can be lightened under the appointed voltage.
The voltage stabilizing output module comprises: the voltage stabilizing diode D9, the resistor R23, the capacitor C15, the capacitor C16, the resistor R13 and the inductor L1 are connected to form a first end of the voltage stabilizing output module after one end of the resistor R23 and one end of the resistor R13 are connected, the other end of the resistor R23 is connected to the positive electrode of the capacitor C16, the negative electrode of the capacitor C16 and the negative electrode of the voltage stabilizing diode D9 are connected to the positive electrode of the capacitor C15, the negative electrode of the capacitor C15 is grounded, the first end of the inductor L1 is connected to the negative electrode of the capacitor C15, the first end of the inductor L1 is the second end of the voltage stabilizing output module, and the second end of the inductor L1 is connected with the other end of the resistor R13 to form a third end of the voltage stabilizing output module. The voltage output by the switch output end of the switch constant current driving module U1 is stabilized.
The automobile brake position lamp control circuit further includes: the detection module, detection module includes: the detection resistor R6 and the switch unit, the first end of the detection resistor R6 is connected to the detection end CS of the switch constant current driving module U1, the first end of the detection resistor R6 is a first detection point, the control end of the switch unit is connected to the input end of the first access module, the second end of the detection resistor R6 is grounded through the switch unit, and the second end of the detection resistor R6 is a second detection point. Since the brake signal or the position signal is connected, which signal is not known to correspond to the brake signal or the position signal, the detection module comprises: the detection resistor R6 and the switch unit are provided, thereby providing two detection points (namely a first detection point and a second detection point), the switch unit realizes that the detection resistor R6 is grounded if and only when a brake signal is input, and the second detection point is caused to have different voltage values before and after the detection resistor R6 is grounded, thereby
The switch unit includes: the MOS tube Q1, the diode D3 and the resistor R4, the positive pole of the diode D3 is connected to the input end of the first access module, the cathode resistor R4 of the diode D3 is connected to the grid electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is grounded, and the source electrode of the MOS tube Q1 is connected to the second end of the detection resistor R6. The diode D3 can only supply current to enter the MOS tube Q1 from the input end of the first access module, the resistor R4 plays a role in limiting voltage to pass through, so that when the input end of the first access module is accessed to a brake signal, the MOS tube Q1 is connected, the resistor R6 is grounded, the voltage change is detected through the second detection point, and whether the brake signal is reacted or not is detected.
The switching unit further includes: the anode of the zener diode ZD1, one end of the resistor R6 and the anode of the capacitor C10 are all connected to the grid electrode of the MOS transistor Q1, and the cathode of the zener diode ZD1, the other end of the resistor R6 and the cathode of the capacitor C10 are all grounded. And the brake signal is stably loaded on the grid electrode of the MOS tube Q1.
The first access module and the second access module each comprise: the anode of the diode D1 is the input end of the first access module or the second access module, and the cathode of the diode D1 is the output end of the first access module or the second access module. The reverse flow of voltage to the output of the vehicle master controller is avoided.
The public access module comprises: the capacitor C4 positive electrode is connected to the voltage input end and the control input end of the switch constant current driving module U1, and the negative electrode of the capacitor C4 is grounded. The brake signal or the position signal is stabilized, and the common access module is shared when the brake signal or the position signal is input, so that the use of electric elements is reduced.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (8)
1. An automotive brake position light control circuit, comprising: the system comprises a first access module, a second access module, a public access module, a switch constant current driving module and a signal lamp group, wherein the input end of the first access module is used for being connected with a braking signal of an automobile master controller, the input end of the second access module is used for being connected with a position signal of the automobile master controller, the output ends of the first access module and the second access module are both connected to the input end of the public access module, the public access module is used for stabilizing the braking signal or the position signal, the output end of the public access module is connected to a voltage input end and a control input end of the switch constant current driving module, the input end of the public access module is connected to an anode end of the signal lamp group, and the switch output end of the switch constant current driving module is used for being connected to a cathode end of the signal lamp group.
2. The automotive brake-position lamp control circuit of claim 1, further comprising: the first end of the voltage stabilizing output module is connected to the anode end of the signal lamp group, the second end of the voltage stabilizing output module is connected to the switch output end of the switch constant current driving module, and the third end of the voltage stabilizing output module is connected to the cathode end of the signal lamp group.
3. The automobile brake position lamp control circuit of claim 2, wherein the regulated output module comprises: the voltage stabilizing diode D9, the resistor R23, the capacitor C15, the capacitor C16, the resistor R13 and the inductor L1 are connected to form a first end of the voltage stabilizing output module after one end of the resistor R23 and one end of the resistor R13 are connected, the other end of the resistor R23 is connected to the positive electrode of the capacitor C16, the negative electrode of the capacitor C16 and the negative electrode of the voltage stabilizing diode D9 are connected to the positive electrode of the capacitor C15, the negative electrode of the capacitor C15 is grounded, the first end of the inductor L1 is connected to the negative electrode of the capacitor C15, the first end of the inductor L1 is the second end of the voltage stabilizing output module, and the second end of the inductor L1 is connected with the other end of the resistor R13 to form a third end of the voltage stabilizing output module.
4. A car brake position light control circuit as defined in claim 3, further comprising: the detection module, detection module includes: the detection resistor R6 and the switch unit, the first end of the detection resistor R6 is connected to the detection end of the switch constant current driving module, the first end of the detection resistor R6 is a first detection point, the control end of the switch unit is connected to the input end of the first access module, the second end of the detection resistor R6 is grounded through the switch unit, and the second end of the detection resistor R6 is a second detection point.
5. The automobile brake position lamp control circuit of claim 4, wherein the switching unit includes: the MOS tube Q1, the diode D3 and the resistor R4, the positive pole of the diode D3 is connected to the input end of the first access module, the cathode resistor R4 of the diode D3 is connected to the grid electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is grounded, and the source electrode of the MOS tube Q1 is connected to the second end of the detection resistor R6.
6. The automobile brake position lamp control circuit of claim 5, wherein the switch unit further comprises: the anode of the zener diode ZD1, one end of the resistor R6 and the anode of the capacitor C10 are all connected to the grid electrode of the MOS transistor Q1, and the cathode of the zener diode ZD1, the other end of the resistor R6 and the cathode of the capacitor C10 are all grounded.
7. The automotive brake-position light control circuit of any one of claims 1 to 6, wherein the first access module and the second access module each comprise: the anode of the diode D1 is the input end of the first access module or the second access module, and the cathode of the diode D1 is the output end of the first access module or the second access module.
8. The automotive brake-position light control circuit of claim 2, wherein the common access module comprises: the capacitor C4 positive electrode is connected to the voltage input end and the control input end of the switch constant current driving module, and the negative electrode of the capacitor C4 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223369593.8U CN220210641U (en) | 2022-12-15 | 2022-12-15 | Automobile braking position lamp control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223369593.8U CN220210641U (en) | 2022-12-15 | 2022-12-15 | Automobile braking position lamp control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220210641U true CN220210641U (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223369593.8U Active CN220210641U (en) | 2022-12-15 | 2022-12-15 | Automobile braking position lamp control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220210641U (en) |
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2022
- 2022-12-15 CN CN202223369593.8U patent/CN220210641U/en active Active
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