Dot matrix headlamp control circuit
By using a collaborative design of independent drive circuits and control chips, the complexity and high cost of traditional dot matrix headlight control circuits have been solved, enabling precise beam adjustment and diversified lighting to meet diverse needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional dot matrix headlight control circuits are complex, unstable, and costly, and cannot achieve precise beam adjustment and diverse lighting modes.
By employing multiple independent drive circuits and control chips working together, combined with resistor and transistor design, precise control of each LED is achieved, simplifying the circuit structure and reducing costs.
It achieves precise control of each LED, supports diverse lighting modes and precise beam adjustment, meets the needs of different road conditions and driving scenarios, has a simple circuit structure, good stability, and low cost.
Smart Images
Figure CN224054460U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile lighting control circuit, specifically relates to a dot matrix car headlamp control circuit. BACKGROUND
[0002] With the continuous development of the automobile industry, the performance and function of vehicle lighting systems are increasingly concerned. Traditional automobile headlamps mostly use simple bulbs or LED combinations, which have many limitations in terms of lighting effect, personalization, and intelligent control. For example, traditional headlamps cannot achieve precise beam adjustment and diversified lighting modes, and cannot meet the needs of different road conditions and driving scenarios. Dot matrix car headlamps can provide more flexible and precise beam control by using multiple independent LED units for lighting, but their control circuits often have problems such as complex structure, poor stability, and high cost. Some existing dot matrix car headlamp control circuits require a large number of complex chips and components, resulting in a large circuit size, which not only increases the difficulty of vehicle wiring, but also increases the cost and failure rate. Therefore, it is of great practical significance to develop a dot matrix car headlamp control circuit with simple structure, stable and reliable, and low cost. SUMMARY
[0003] The utility model aims at providing a dot matrix car headlamp control circuit, which can realize efficient and accurate control of dot matrix car headlamps, has the advantages of simple structure, good stability, and low cost, and solves the above-mentioned problems existing in the prior art.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme,
[0005] A dot matrix car headlamp control circuit, characterized in that it comprises a control chip, a power conversion circuit, and a plurality of drive circuits for driving LED light emission, the drive circuit comprises a connection end connected to the control chip, the connection end is connected with a first resistor, a second resistor, a first triode, a third resistor, a fourth resistor, a second triode, and an output end, the output end is connected to the corresponding port of the connection row, the port of the connection row is connected with the LED, the G end of the first triode is connected with one end of the second resistor, the S end of the first triode is connected with the other end of the second resistor, and the S end and the G end of the second triode are connected with the two ends of the fourth resistor.
[0006] The utility model further sets up, the drive circuit is provided with 30, and it corresponds 30 access feet on the control chip.
[0007] The utility model further sets up, the resistance value of the first resistor is 2KΩ, and the resistance value of the second resistor, the third resistor, and the fourth resistor is 10KΩ.
[0008] The utility model further sets up, 49 feet, 50 feet, 51 feet of control chip are connected with mode switching button.
[0009] The utility model further sets up, power conversion circuit includes rectifier part and voltage stabilizing chip, voltage stabilizing chip is connected with rectifier part, and is connected with capacitor C1, the output of voltage stabilizing chip is connected with filter part, the filter part is provided with capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, and capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7 are connected in parallel between.
[0010] The utility model has the advantages of:
[0011] The utility model discloses a plurality of independent drive circuit and the cooperative work of control chip can realize the accurate control to each LED, realizes the diversified lighting mode and accurate light beam adjustment, satisfies the demand of different road conditions and driving scene. BRIEF DESCRIPTION OF DRAWINGS
[0012] The accompanying drawings which are included to provide a further understanding of the present application, constitute a part of the present application, the illustrative embodiment of the present application and its explanation are used to explain the present application, and do not constitute the improper limitation to the present application.
[0013] Figure 1 It is the power conversion circuit schematic diagram of the utility model embodiment.
[0014] Figure 2 It is the control chip schematic diagram of the utility model embodiment.
[0015] Figure 3 It is the drive circuit schematic diagram of the utility model embodiment.
[0016] Figure 4 It is the connection row schematic diagram of the utility model embodiment. DETAILED DESCRIPTION
[0017] The embodiment of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.
[0018] As Figures 1-4The utility model discloses a dot matrix car headlight control circuit, including control chip, power conversion circuit and the drive circuit of the drive LED light, the drive circuit includes the connecting end of control chip connection, the connecting end is connected with first resistance, second resistance, first triode, third resistance, fourth resistance, second triode and output, the output is connected to the port of corresponding connection row, and the port of connection row is connected with the LED, the G end of first triode is connected with one end of second resistance, and the S end of first triode tube is connected with the other end of second resistance, and the S end and G end of second triode are connected with the both ends of fourth resistance.
[0019] The utility model further provides, the drive circuit is provided with 30, and it is corresponding 30 access feet on control chip.
[0020] The utility model further provides, the resistance of first resistance is 2K omega, and the resistance of second resistance, third resistance and fourth resistance is 10K omega.
[0021] The utility model further provides, the 49 foot, 50 foot, 51 foot of control chip is connected with mode switch button.
[0022] The utility model further provides, power conversion circuit includes rectifier part and voltage stabilizing chip, and voltage stabilizing chip is connected with rectifier part, and is connected with capacitor C1, and the output of voltage stabilizing chip is connected with filter part, and filter part is provided with capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, and capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7 are connected in parallel.
[0023] The utility model discloses through the cooperative work of multiple independent drive circuit and control chip, can realize the accurate control to each LED, realizes the diversified lighting mode and accurate light beam adjustment, satisfies the demand of different road conditions and driving scene.
[0024] As some terms are used in the description and claims, those of ordinary skill in the art are to understand that different names can be used by hardware manufacturers to refer to the same component. The description and claims of the present application do not distinguish components by name difference, but by functional difference. As mentioned throughout the description and claims, "comprising" is an open term, which should be interpreted as "including but not limited to". "Approximately" means within an acceptable error range, and those skilled in the art can solve technical problems within a certain error range, basically achieving the technical effect.
[0025] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion such that a product or process that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such product or process. An element proceeded by "comprises a" does not, without further recitation, preclude the inclusion of additional elements of that element or the possibility of additional elements that are the same as that element.
[0026] The above description shows and describes several preferred embodiments of the present application, but as previously mentioned, it is to be understood that the application is not limited to the above-described and illustrated forms, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the inventive concept disclosed herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the appended claims of the present application.
Claims
1. A dot matrix vehicle headlamp control circuit, characterized by comprising: Including control chip, power conversion circuit and drive LED light several drive circuit, the drive circuit includes the connection end connected with control chip, the connection end is connected with first resistance, second resistance, first triode, third resistance, fourth resistance, second triode and output end, the output end is connected to the port corresponding to the connection row, the port of connection row is connected with LED, the G end of first triode is connected with one end of second resistance, the S end of first triode tube is connected with the other end of second resistance, the S end and G end of second triode are connected with the two ends of fourth resistance.
2. The dot matrix vehicle headlamp control circuit according to claim 1, characterized in that, The drive circuit is provided with 30, which corresponds to the 30 access feet on control chip.
3. The dot matrix vehicle headlamp control circuit according to claim 1, wherein The resistance of first resistance is 2KΩ, the resistance of second resistance, third resistance and fourth resistance is 10KΩ.
4. The dot matrix vehicle headlamp control circuit of claim 1, wherein, The 49 feet, 50 feet and 51 feet of control chip are connected with mode switching button.
5. The dot matrix vehicle headlamp control circuit of claim 1, wherein, The power conversion circuit includes rectification part and voltage stabilizing chip, the voltage stabilizing chip is connected with rectification part and connected with capacitor C1, the output end of voltage stabilizing chip is connected with filter part, the filter part is provided with capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 and capacitor C7, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 and capacitor C7 are connected in parallel.