CN217985473U - Adjustable output voltage reduction system based on LED different voltage branch BIN design and vehicle - Google Patents
Adjustable output voltage reduction system based on LED different voltage branch BIN design and vehicle Download PDFInfo
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- CN217985473U CN217985473U CN202222017276.3U CN202222017276U CN217985473U CN 217985473 U CN217985473 U CN 217985473U CN 202222017276 U CN202222017276 U CN 202222017276U CN 217985473 U CN217985473 U CN 217985473U
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Abstract
The utility model belongs to the technical field of automobile lamps, in particular to an adjustable output voltage reduction system and a vehicle based on the BIN design of different voltages of an LED, which are characterized in that a voltage reduction module, a voltage reduction light source module and a driving module are arranged; the voltage reduction module is electrically connected with the voltage reduction light source module; the voltage reduction light source module is electrically connected with the driving module; the voltage reduction light source module is suitable for adjusting the output voltage of the voltage reduction module according to the LED voltage branch BIN, so that the voltage shared by the driving module is controlled within the minimum range of ensuring the normal work of the driver, the output voltage of the voltage reduction module is adjusted according to different LED voltages, the voltage shared by the driving chip can be controlled within the minimum range of ensuring the normal work of the driver, the driving chip can drive more LEDs under the same power condition, and the driving cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the car light, concretely relates to divide BIN design adjustable output step-down system and vehicle based on different voltages of LED.
Background
As shown in fig. 1, currently, many LED step-down driving schemes of automobile lamps in the market are designed according to the maximum voltage BIN of an LED, and since a driving chip has junction temperature limitation, the power that can be used by the driving chip is limited. According to the design of the highest voltage branch BIN of the LED, when the low voltage branch BIN LED is used, the voltage shared by the driving chip is too large, the output current that can be provided is reduced, and the number of the driven LEDs is reduced. If the output voltage of the voltage reduction module can be adjusted according to different LED voltages, the voltage shared by the driving chip can be controlled within the minimum range which can ensure the normal work of the driver, so that the driving chip can drive more LEDs under the same power condition, and the driving cost is reduced.
Therefore, a new adjustable output voltage reduction system and a vehicle designed based on different voltage components BIN of LEDs are needed to be designed based on the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an output voltage reduction system and vehicle that can adjust based on different voltages of LED divide BIN design to solve the technical problem that can drive more LED under same power condition.
In order to solve the technical problem, the utility model provides an divide BIN design adjustable output step-down system based on different voltages of LED, include:
the voltage reduction module, the voltage reduction light source module and the driving module;
the voltage reduction module is electrically connected with the voltage reduction light source module;
the voltage reduction light source module is electrically connected with the driving module;
the voltage reduction light source module is suitable for adjusting the output voltage of the voltage reduction module according to the BIN of the LED voltage, so that the voltage shared by the driving module is controlled in the minimum range for ensuring the normal operation of the driver.
Further, the voltage reduction module includes: a voltage reduction chip;
the buck chip is suitable for providing output voltage for the buck light source module.
Further, the step-down light source module includes: the LED light source and the voltage reduction chip output control circuit;
the LED light source is electrically connected with the voltage reduction chip;
the voltage reduction chip output control circuit is electrically connected with the voltage reduction chip;
the step-down chip output control circuit is suitable for adjusting the step-down output voltage of the step-down chip according to the BIN of the LED light source voltage.
Further, the driving module includes: a driver chip;
the driving chip is electrically connected with the LED light source;
the driving chip is suitable for driving the LED light source to be lightened;
the step-down chip output control circuit is suitable for adjusting the step-down output voltage of the step-down chip according to the voltage of the LED light source, reducing the voltage shared by the driving chip, reducing the power of the driving chip and improving the output current of the driving chip.
On the other hand, the utility model provides a vehicle still, include:
the system comprises a vehicle controller, an adjustable output voltage reduction system and an automobile lamp;
the vehicle controller is electrically connected with the adjustable output voltage reduction system;
the vehicle controller is suitable for controlling the adjustable output voltage reduction system to control the automobile lamp.
Further, the adjustable output voltage reduction system is suitable for designing the adjustable output voltage reduction system based on the LED different voltage branch BIN.
Further, the automotive light fixture includes: position lights, turn lights, brake lights, backup lights, and fog lights.
The beneficial effects of the utility model are that, the utility model discloses a step-down module, step-down light source module and drive module; the voltage reduction module is electrically connected with the voltage reduction light source module; the voltage reduction light source module is electrically connected with the driving module; the voltage reduction light source module is suitable for adjusting the output voltage of the voltage reduction module according to the LED voltage branch BIN, so that the voltage shared by the driving module is controlled within the minimum range of ensuring the normal work of the driver, the output voltage of the voltage reduction module is adjusted according to different LED voltages, the voltage shared by the driving chip can be controlled within the minimum range of ensuring the normal work of the driver, the driving chip can drive more LEDs under the same power condition, and the driving cost is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a prior art LED control scheme;
fig. 2 is a schematic block diagram of the adjustable output voltage reduction system designed based on different voltage branches of the LED of the present invention;
FIG. 3 is a circuit diagram of the voltage reduction chip of the present invention;
fig. 4 is a circuit diagram of an LED light source of the present invention;
FIG. 5 is a circuit diagram of the voltage reduction chip output control circuit of the present invention;
fig. 6 is a circuit diagram of the driving chip of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Based on different LED voltage branch BINs, an adjustable voltage reduction scheme is designed, and driving cost is reduced. With the popularization of the application of the LED in the automobile lamp, more and more circuit schemes for driving the LED are provided and more complicated. The quantity of LED is more and more in present car lamps and lanterns, and the function that requires realizes the effect also more and more diversified, for example: water effects, respiratory effects, etc. Because the number of the LEDs is too large, the BIN is divided according to a single voltage and faces the risk of material shortage, the requirements on the driving scheme of the LEDs are higher and higher, the current LED driving is a voltage reduction scheme designed according to the highest voltage BIN of the LEDs, but the difference value between the highest voltage BIN and the lowest voltage BIN of a single LED is often more than 0.5V, and the difference value is often larger by calculating the drift of the conduction voltage drop of the LEDs under the high-temperature and low-temperature environments; if three LEDs are connected in series, the total difference may be as high as 2V or more, which results in excessive power of the driver chip, and the need to use more driver chips, resulting in increased design cost. The embodiment designs a voltage reduction scheme with different outputs aiming at different LED voltages, thereby reducing the power of the driving chip and further reducing the design cost of the lamp.
This embodiment provides an adjustable output step-down system of BIN design is divided based on different voltages of LED, includes: the voltage reduction module, the voltage reduction light source module and the driving module; the voltage reduction module is electrically connected with the voltage reduction light source module; the voltage reduction light source module is electrically connected with the driving module; the voltage reduction light source module is suitable for adjusting the output voltage of the voltage reduction module according to the LED voltage branch BIN, so that the voltage shared by the driving module is controlled within the minimum range of ensuring the normal work of the driver, the output voltage of the voltage reduction module is adjusted according to different LED voltages, the voltage shared by the driving chip can be controlled within the minimum range of ensuring the normal work of the driver, the driving chip can drive more LEDs under the same power condition, and the driving cost is reduced.
In this embodiment, one buck chip can adjust the buck output voltage according to the voltage of the LED, reduce the voltage shared by the driver chip, reduce the power of the driver chip, increase the output current of the driver chip, and further drive more paths of LEDs, thereby implementing cost optimization of the lamp; the LED light source can be a position lamp, a steering lamp, a brake lamp, a reversing lamp, a fog lamp and the like in an automobile lamp.
The original scheme is a voltage reduction output scheme designed for the highest voltage branch BIN based on the LED, so that when the low voltage branch BIN of the LED is used, the voltage reduction shared by a driving chip is too large, the power is large, the driving chip needs to be added for control, and finally the lamp cost is high. In the embodiment, the voltage sub BIN which contains all the LEDs is provided, so that the increase of the purchasing cost of the LEDs caused by selecting the voltage sub BIN of the LEDs and the shortage of materials caused by the singleness of materials are avoided, different step-down output voltages are designed according to different voltage sub BINs of the LEDs, the voltage drop shared by the driving chip can be ensured to be as small as possible, as large as possible current output is provided, and more paths of LEDs can be driven; according to different LED voltages, BIN is divided, different voltage-reduction output voltages are designed, the driving chip can be ensured to drive more paths of LEDs, and the design cost of the lamp is reduced.
In this embodiment, the voltage reducing module includes: a voltage reduction chip; the voltage reduction chip is suitable for providing output voltage for the voltage reduction light source module; the buck chip can adopt, but is not limited to, LM61460-Q1 to connect the LED light source, the buck chip output control circuit and the driving chip through corresponding pins of the buck chip.
In this embodiment, the step-down light source module includes: the LED light source and the voltage reduction chip output control circuit; the LED light source is electrically connected with the voltage reduction chip; the voltage reduction chip output control circuit is electrically connected with the voltage reduction chip; the step-down chip output control circuit is suitable for adjusting the step-down output voltage of the step-down chip according to the BIN of the LED light source voltage; the LED light source can be but is not limited to a plurality of light emitting diodes; the step-down chip output control circuit is connected with a corresponding pin of the step-down chip (for example, connected with an FB pin); the voltage reduction chip output control circuit can be composed of an MOS tube, and the drain electrode of the MOS tube is connected with the voltage reduction chip; according to the selected LED voltage, the BIN is divided, the output voltage of the voltage reduction chip is adjusted, the voltage shared by the driving chip is controlled within the minimum range which can ensure the normal work of the driving, so that the driving chip can drive more LEDs under the same power condition, and the driving cost is reduced.
In this embodiment, the driving module includes: a driving chip; the driving chip is electrically connected with the LED light source; the driving chip is suitable for driving the LED light source to be lightened; the step-down chip output control circuit is suitable for adjusting the step-down output voltage of the step-down chip according to the voltage of the LED light source, reducing the voltage shared by the driving chip, reducing the power of the driving chip and improving the output current of the driving chip; the driving chip can be but is not limited to an E522.94 chip.
Example 2
On the basis of embodiment 1, the present embodiment 2 further provides a vehicle including: the system comprises a vehicle controller, an adjustable output voltage reduction system and an automobile lamp; the vehicle controller is electrically connected with the adjustable output voltage reduction system; the vehicle controller is suitable for controlling the adjustable output voltage reduction system to control the automobile lamp; the automobile lamp is controlled through the adjustable output voltage reduction system, and the number of the controlled LED light sources can be increased.
In this embodiment, the adjustable output voltage reduction system is suitable for designing the adjustable output voltage reduction system based on different voltage components BIN of the LED.
In this embodiment, the automotive lamp includes: position lights, turn lights, brake lights, backup lights, and fog lights.
To sum up, the utility model adopts the voltage reduction module, the voltage reduction light source module and the driving module; the voltage reduction module is electrically connected with the voltage reduction light source module; the voltage reduction light source module is electrically connected with the driving module; the voltage reduction light source module is suitable for adjusting the output voltage of the voltage reduction module according to the LED voltage branch BIN, so that the voltage shared by the driving module is controlled within the minimum range of ensuring the normal work of the driver, the output voltage of the voltage reduction module is adjusted according to different LED voltages, the voltage shared by the driving chip can be controlled within the minimum range of ensuring the normal work of the driver, the driving chip can drive more LEDs under the same power condition, and the driving cost is reduced.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides an adjustable output step-down system of BIN design is divided based on different voltages of LED which characterized in that includes:
the voltage reduction module, the voltage reduction light source module and the driving module;
the voltage reduction module is electrically connected with the voltage reduction light source module;
the voltage reduction light source module is electrically connected with the driving module;
the voltage reduction light source module is suitable for adjusting the output voltage of the voltage reduction module according to the LED voltage branch BIN, so that the voltage shared by the driving module is controlled within the minimum range of ensuring the normal work of the driver.
2. The LED differential voltage splitting BIN based design adjustable output buck system of claim 1,
the voltage reduction module comprises: a voltage reduction chip;
the buck chip is suitable for providing output voltage for the buck light source module.
3. The LED differential voltage BIN based design adjustable output buck system of claim 2,
the step-down light source module includes: the LED light source and the voltage reduction chip output control circuit;
the LED light source is electrically connected with the voltage reduction chip;
the voltage reduction chip output control circuit is electrically connected with the voltage reduction chip;
the step-down chip output control circuit is suitable for adjusting the step-down output voltage of the step-down chip according to the BIN of the LED light source voltage.
4. The LED differential voltage splitting BIN based design adjustable output buck system of claim 3,
the driving module includes: a driver chip;
the driving chip is electrically connected with the LED light source;
the driving chip is suitable for driving the LED light source to be lightened;
the step-down chip output control circuit is suitable for adjusting the step-down output voltage of the step-down chip according to the voltage of the LED light source, reducing the voltage shared by the driving chip, reducing the power of the driving chip and improving the output current of the driving chip.
5. A vehicle, characterized by comprising:
the system comprises a vehicle controller, an adjustable output voltage reduction system and an automobile lamp;
the vehicle controller is electrically connected with the adjustable output voltage reduction system;
the vehicle controller is suitable for controlling the adjustable output voltage reduction system to control the automobile lamp.
6. The vehicle of claim 5,
the adjustable output voltage reduction system is suitable for adopting the LED-based different voltage division BIN design adjustable output voltage reduction system of any one of claims 1 to 4.
7. The vehicle of claim 6,
the automobile lamp includes: position lights, turn lights, brake lights, backup lights, and fog lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222017276.3U CN217985473U (en) | 2022-08-02 | 2022-08-02 | Adjustable output voltage reduction system based on LED different voltage branch BIN design and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222017276.3U CN217985473U (en) | 2022-08-02 | 2022-08-02 | Adjustable output voltage reduction system based on LED different voltage branch BIN design and vehicle |
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| Publication Number | Publication Date |
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| CN217985473U true CN217985473U (en) | 2022-12-06 |
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| CN202222017276.3U Active CN217985473U (en) | 2022-08-02 | 2022-08-02 | Adjustable output voltage reduction system based on LED different voltage branch BIN design and vehicle |
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| CN (1) | CN217985473U (en) |
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- 2022-08-02 CN CN202222017276.3U patent/CN217985473U/en active Active
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