Intelligent control array breathing lamp system

Abstract

The invention relates to the technical field of electric illumination light source circuits, and discloses an intelligent control array breathing lamp system which comprises a main control chip, the main control chip is connected with and controls array lamp beads in a matrix control mode, a battery protection chip is connected with multiple batteries and supplies power to the main control chip and the array lamp beads, and the battery protection chip is connected with a power supply circuit. The positive electrode end of the battery protection chip is connected with a protection circuit, and the main control chip is connected with and controls the protection circuit. And the battery protection chip is connected with and controls a PMOS tube at the positive electrode output of the battery through the PCDR end, and is connected with and controls an NMOS tube at the negative electrode output of the battery through the NDDR end. The colorful breathing lamp is achieved through the array lamp beads, the overall durability and light intensity of the breathing lamp product are greatly improved, and therefore the use experience of the breathing lamp product and the public praise of a user are effectively improved; and the working stability is excellent, the control function upgrading space is large, and the development of high-end breathing lamp series products is greatly facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and particularly to the technical field of electric lighting light source circuits. Background Art

[0002] In the existing breathing lights, generally a single lamp bead is used to continuously change the light intensity of the lamp bead by controlling the energizing voltage to achieve the breathing effect. For the requirement of multi-color color rendering, three lamp beads are installed side by side at a point. Essentially, it is still the control of a single lamp bead. 0

[0003] In practice, the service lives of the lamp beads are different, and the light intensity of the lamp beads is generally significantly weak. This results in that in many actual breathing light products, the lamp beads are easily damaged, seriously affecting the use experience of the products and the user reputation. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent control array breathing light system, so that a multi-color breathing light can be realized through an array of lamp beads, greatly improving the overall durability and light intensity of the breathing light products, thereby effectively improving the use experience of the breathing light products and the user reputation.

[0005] To solve the above technical problems, the present invention provides an intelligent control array breathing light system, including a main control chip. The main control chip is connected to control an array of lamp beads in a matrix control manner. A battery protection chip is connected to multiple batteries and supplies power to the main control chip and the array of lamp beads. A protection circuit is connected to the positive extreme of the battery protection chip, and the main control chip is connected to control the protection circuit; the battery protection chip is connected to control a PMOS transistor through the PCDR terminal at the output of the battery positive electrode, and is connected to control an NMOS transistor through the NDDR terminal at the output of the battery negative electrode;

[0006] The main control chip controls the array of lamp beads by the following steps:

[0007] S1. Obtain the current round of electrical parameters from the protection circuit and the battery protection chip, and obtain the current round of control values from the internal storage;

[0008] S2. Calculate the difference between the current round of electrical parameters and the previous round of electrical parameters to obtain the current round of parameter difference;

[0009] S3. Calculate the difference between the current round of parameter difference and the previous round of parameter difference to obtain the current round of parameter change rate;

[0010] S4. Multiply the current round of control values by the current round of parameter change rate to obtain the current round of output values;

[0011] S5. According to the current round of output values, control the protection circuit and the array of lamp beads to achieve the current round of control of the array of lamp beads.

[0012] The NDDR terminal of the battery protection chip is connected to a plurality of parallel N-channel enhancement MOS transistors.

[0013] The N-channel enhancement-mode MOS transistor uses CS100N03A4.

[0014] The PMOS transistor uses KS4435HB.

[0015] The positive pole of the array of lamp beads is connected to a triode, the main control chip is connected to control the triode, and the negative pole of the array of lamp beads is directly connected to the GPIO port of the main control chip.

[0016] For every two routes at the positive pole end of the array of lamp beads, they are controlled by one GPIO port of the main control chip through a triode.

[0017] The battery protection chip uses PT6305, and the main control chip uses CS88F313BEO.

[0018] The NCDR port of the battery protection chip is connected to the main control chip.

[0019] A three-terminal integrated voltage regulator is connected inside the protection circuit and outputs 5V voltage through the three-terminal integrated voltage regulator. This 5V voltage is connected to the positive pole of the array of lamp beads, and the branch circuit parallel to the three-terminal integrated voltage regulator is connected to the voltage detection end of the main control chip.

[0020] In the protection circuit, a PNP triode is connected to the link where the positive pole access end is connected to the voltage output. The collector of this PNP triode is respectively connected to the positive pole access end and the ADC pin end of the main control chip. Voltage dividing resistors are respectively connected in series to the links where the positive pole access end and the ADC pin end of the main control chip are connected to the collector of the PNP triode.

[0021] Compared with the prior art, the present invention realizes a colorful breathing lamp through an array of lamp beads, greatly improving the overall durability and light intensity of the breathing lamp product, thereby effectively improving the use experience and user reputation of the breathing lamp product; and it has excellent working stability, a great upgrade space for control functions, and is extremely beneficial to the development of high-end breathing lamp series products.

[0022] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specifically enumerates the specific implementation manners of the present invention. Brief Description of the Drawings

[0023] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0024] Figure 1It is a connection schematic diagram of at least one embodiment of the present invention;

[0025] Figure 2 It is Figure 1 a connection schematic diagram of the main control chip in

[0026] Figure 3 It is Figure 1 a connection schematic diagram of the battery protection chip in

[0027] Figure 4 It is Figure 1 a connection schematic diagram of the array lamp beads in

[0028] Figure 5 It is Figure 1 a connection schematic diagram of the protection circuit in Specific embodiments

[0029] To make the objectives, technical solutions and advantages of the present invention clearer, the following will elaborate on the various embodiments of the present invention in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that in the various embodiments of the present invention, many technical details are presented for the better understanding of the reader. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented. The division of the following embodiments is for convenience of description and should not constitute any limitation to the specific implementation of the present invention. The various embodiments can be combined and cross-referenced with each other on the premise of no contradiction.

[0030] The first embodiment of the present invention relates to an intelligent control array breathing lamp system, including a main control chip. The main control chip controls the array lamp beads in a matrix control manner. The battery protection chip is connected to multiple batteries and supplies power to the main control chip and the array lamp beads. A protection circuit is connected to the positive terminal of the battery protection chip, and the main control chip is connected to control the protection circuit; the battery protection chip controls a PMOS transistor through the PCDR terminal connected to the positive output of the battery and controls an NMOS transistor through the NDDR terminal connected to the negative output of the battery;

[0031] The main control chip controls the array lamp beads by the following steps:

[0032] S1. Obtain the current round of electrical parameters P n from the protection circuit and the battery protection chip, and obtain the current round of control value C n from the internal storage;

[0033] S2. Calculate the difference between the current round of electrical parameters and the previous round of electrical parameters to obtain the current round of parameter difference ΔP n =P n - P n-1 ;

[0034] S3. Calculate the difference between the parameter difference in this round and the parameter difference in the previous round to obtain the parameter change rate P in this round ’ n =ΔP n - ΔP n-1 ;

[0035] S4. Multiply the control value in this round by the parameter change rate in this round to obtain the output value C in this round ’ n =C n ·P ’ n ;

[0036] S5. According to the output value C in this round ’ n , control the protection circuit and the array of LED beads to achieve the control of the array of LED beads in this round.

[0037] Thus, on the one hand, by connecting and controlling the array of LED beads, based on the control of the main control chip, a colorful breathing light can be effectively realized through the array of LED beads. On the other hand, the battery protection chip combines two typical connection methods of the charging PMOS and the charging NMOS to ensure the stability of charging and daily use, ensuring that the breathing light product based on this application can overall have extremely high durability, thereby greatly improving the user experience of the product.

[0038] It is easy to understand that the on / off control of the array of LED beads by the main control chip can be realized by using components of the GPIO control switch type, while the brightness of the array of LED beads is realized by controlling the electrical parameters (including current and voltage) through the protection circuit. Since the input link electrical parameters of the array of LED beads are not directly controlled by the DAC or PWM method, it is more difficult to effectively control the brightness of the array of LED beads compared to the traditional direct input / output method. The main problem is that the brightness control is unstable and often shows unexpected brightness sudden changes. In the prior art, there is a solution using an AI model, but the breathing light product is extremely sensitive to cost. Using an AI model for control means that the hardware cost of the main control chip directly rises from about 0.8 yuan per chip to about 20 yuan per chip. Therefore, this embodiment is based on the second-order difference (i.e., calculating the difference of the differences) for simplified high-order smoothing control, which not only takes into account the filtering effect of the first-order smoothing control in the prior art, but also ensures more stable brightness control of the array of LED beads.

[0039] The second embodiment of the present invention is substantially the same as the first embodiment, mainly in the further optimization of the selection details. The NDDR terminal of the battery protection chip is connected to multiple parallel N-channel enhancement MOS transistors.

[0040] Preferably, the N-channel enhancement MOS transistor uses CS100N03A4.

[0041] Preferably, the PMOS transistor uses KS4435HB.

[0042] Preferably, the battery protection chip uses PT6305, and the main control chip uses CS88F313BEO.

[0043] The third embodiment of the present invention is substantially the same as the first embodiment, mainly in the further optimization of the connection control of the array lamp beads. The positive pole of the array lamp beads is connected to a triode, and the main control chip is connected to control the triode. The negative pole of the array lamp beads is directly connected to the GPIO port of the main control chip.

[0044] Furthermore, every two of the positive ends of the array lamp beads are connected and controlled by one GPIO port of the main control chip through a triode.

[0045] The fourth embodiment of the present invention is substantially the same as the first embodiment, mainly in the further detailed optimization of improving the overall stability and durability. The NCDR port of the battery protection chip is connected to the main control chip.

[0046] Furthermore, a three-terminal integrated voltage regulator is connected inside the protection circuit and outputs 5V voltage through the three-terminal integrated voltage regulator. This 5V voltage is connected to the positive pole of the array lamp beads. The branch circuit parallel to the three-terminal integrated voltage regulator is connected to the voltage detection end of the main control chip. Thus, the working stability of the product is further improved.

[0047] Furthermore, in the protection circuit, a PNP triode is connected to the link of the positive pole access end connecting the voltage output. The collector of the PNP triode is respectively connected to the positive pole access end and the ADC pin end of the main control chip. Voltage dividing resistors are respectively connected in series to the links of the positive pole access end and the ADC pin end of the main control chip connecting to the collector of the PNP triode. Thus, the current intensity can be controlled through the ADC, thereby controlling the light intensity of the array lamp beads, and also avoiding the problem that the high-frequency flashing of the lamp beads caused by the pwm control mode may be harmful to the user's eyes.

[0048] Those of ordinary skill in the art can understand that the above embodiments are specific examples for implementing the present invention, and in practical applications, various changes can be made in form and details without departing from the spirit and scope of the present invention.

Claims

1. An intelligent control array breathing lamp system, characterized in that: It includes a main control chip, which is connected to control an array of lamp beads in a matrix control manner. A battery protection chip is connected to multiple batteries and supplies power to the main control chip and the array of lamp beads. A protection circuit is connected to the positive terminal of the battery protection chip, and the main control chip is connected to control the protection circuit; the battery protection chip controls a PMOS transistor connected to the output of the battery positive terminal through the PCDR terminal, and controls an NMOS transistor connected to the output of the battery negative terminal through the NDDR terminal; The main control chip controls the array of lamp beads by the following steps: S1. Obtain the electrical parameters of this round from the protection circuit and the battery protection chip, and obtain the control value of this round from the internal memory; S2. Calculate the difference between the electrical parameters of this round and the electrical parameters of the previous round to obtain the parameter difference of this round; S3. Calculate the difference between the parameter difference of this round and the parameter difference of the previous round to obtain the parameter change rate of this round; S4. Multiply the control value of this round by the parameter change rate of this round to obtain the output value of this round; S5. According to the output value of this round, control the protection circuit and the array of lamp beads to achieve the control of this round of the array of lamp beads.

2. The intelligent control array breathing lamp system according to claim 1, characterized in that: The NDDR terminal of the battery protection chip is connected to multiple parallel N-channel enhancement MOS transistors.

3. The intelligent control array breathing lamp system according to claim 2, characterized in that: The N-channel enhancement MOS transistor uses CS100N03A4.

4. The intelligent control array breathing lamp system according to claim 1, characterized in that: The PMOS transistor uses KS4435HB.

5. The intelligent control array breathing lamp system according to claim 1, wherein: The positive pole of the array of lamp beads is connected to a triode, the main control chip is connected to control the triode, and the negative pole of the array of lamp beads is directly connected to the GPIO port of the main control chip.

6. The intelligent control array breathing lamp system according to claim 1, characterized in that: Every two of the positive terminals of the array of lamp beads are connected and controlled by a GPIO port of the main control chip through a triode.

7. The intelligent control array breathing lamp system according to claim 1, characterized in that: The battery protection chip uses PT6305, and the main control chip uses CS88F313BEO.

8. The intelligent control array breathing lamp system according to claim 1, wherein: The NCDR port of the battery protection chip is connected to the main control chip.

9. The intelligent control array breathing lamp system according to claim 1, wherein: A three-terminal integrated voltage regulator is connected inside the protection circuit and outputs 5V voltage through the three-terminal integrated voltage regulator. This 5V voltage is connected to the positive pole of the array of lamp beads, and the branch parallel to the three-terminal integrated voltage regulator is connected to the voltage detection terminal of the main control chip.

10. The intelligent control array breathing lamp system according to claim 1, characterized in that: In the protection circuit, a PNP triode is connected to the link where the positive pole access terminal is connected to the voltage output. The collector of the PNP triode is respectively connected to the positive pole access terminal and the ADC pin terminal of the main control chip. Voltage dividing resistors are respectively connected in series to the links where the positive pole access terminal and the ADC pin terminal of the main control chip are connected to the collector of the PNP triode.

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