Wireless conductive luminous character dimming module

Abstract

The utility model discloses a wireless conductive luminous character dimming module which comprises a reverse connection protection circuit, an input voltage stabilizing circuit, an output voltage stabilizing circuit, a control chip unit and a dimming circuit. By arranging the reverse connection protection circuit, the input voltage stabilizing circuit, the output voltage stabilizing circuit, the control chip unit and the dimming circuit, the brightness of the wireless conductive light-emitting word is regulated and controlled, the problem of uneven light emission caused by series connection of the lamp beads is solved, the brightness of the wireless conductive light-emitting word is uniform, and therefore the requirements of people are met, and the practicability of the wireless conductive light-emitting word is improved. Therefore, the competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless conductive luminous characters, and in particular mainly to a wireless conductive luminous character dimming module. Background Art

[0002] At present, wireless conductive luminous characters are usually connected by electricity, and the electrical connection relationship between each character is series connection. When connected to the power supply, the series connection will make the voltage of each character different, resulting in uneven lighting of the wireless conductive luminous characters, which is extremely inconvenient in daily use. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a wireless conductive luminous character dimming module. The utility model realizes brightness control of wireless conductive luminous characters by setting a reverse connection protection circuit, an input voltage stabilizing circuit, an output voltage stabilizing circuit, a control chip unit and a control circuit, solves the problem of uneven light emission of lamp beads in series, and makes the brightness of wireless conductive luminous characters uniform, thereby meeting people's needs and improving the competitiveness of the product.

[0004] To achieve the above-mentioned purpose, the utility model provides a wireless conductive luminous character dimming module, which includes a reverse connection protection circuit, an input voltage stabilizing circuit, an output voltage stabilizing circuit, a control chip unit and a regulation circuit. The input end of the reverse connection protection circuit is connected to the input voltage, the output end of the reverse connection protection circuit is connected to the input end of the input voltage stabilizing circuit, the output end of the input voltage stabilizing circuit is connected to the input end of the control chip unit, the output voltage stabilizing circuit is connected to the control chip unit, and the output end of the output voltage stabilizing circuit is connected to the output end of the control chip unit, and the regulation circuit is connected to the control chip unit.

[0005] According to one embodiment of the utility model, the input voltage stabilizing circuit includes a capacitor C2 and a capacitor C4, one end of the capacitor C2 is electrically connected to the output end of the reverse connection protection circuit and the control chip unit respectively, the other end of the capacitor C2 is grounded, and the capacitor C4 is connected in parallel with the capacitor C2.

[0006] According to one embodiment of the utility model, the output voltage stabilizing circuit includes a capacitor C1, a diode D1 and an inductor L1, one end of the capacitor C1 is electrically connected to the control chip unit, the other end of the capacitor C1 is connected to the output end of the control chip unit, the diode D1 is connected in series with the capacitor C1, and one end of the diode D1 is grounded, the inductor L1 is connected to the output end of the control chip unit, and one end of the inductor L1 is connected to one end of the capacitor C1.

[0007] According to one embodiment of the utility model, the control chip unit includes a control chip U1, a capacitor C5, a resistor R1 and a resistor R2, the output end of the input voltage stabilizing circuit is connected to the seventh pin of the control chip U1, the input end of the output voltage stabilizing circuit is connected to the eighth pin of the control chip U1, and its output end is connected to the first pin of the control chip U1, one end of the regulation circuit is connected to the first pin of the control chip U1, and the other end is connected to the fourth pin of the control chip U1, one end of the capacitor C5 is connected to the third pin of the control chip U1, the resistor R2 is connected in series to the other end of the capacitor C5, and one end of the resistor R2 is grounded, one end of the resistor R1 is connected to the sixth pin of the control chip U1, and the other end of the resistor R1 is grounded.

[0008] According to one embodiment of the utility model, the control circuit includes a resistor R3, an adjustable resistor VR1 and a capacitor C3, one end of the resistor R3 is respectively connected to the output end of the output voltage stabilizing circuit and the capacitor C3, the other end of the resistor R3 is connected to one end of the adjustable resistor VR1, the other end of the adjustable resistor VR1 is connected to the control chip unit and then grounded, and the other end of the capacitor C3 is grounded.

[0009] According to an embodiment of the present invention, the control chip unit further includes a resistor R5, one end of the resistor R5 is connected to the second pin of the control chip U1, and the other end thereof is connected to the output end of the input voltage stabilizing unit.

[0010] According to an embodiment of the present invention, the control circuit further includes a resistor R4, one end of the resistor R4 is connected to the adjustable resistor VR1 and the control chip unit, and the other end thereof is grounded.

[0011] According to one implementation of the utility model, the input voltage is 0-90V, the output voltage is 6.5-24V, and the output power is 4W.

[0012] According to one embodiment of the present invention, its length is 24.5 mm, width is 6.7 mm, and thickness is 5.1 mm.

[0013] The beneficial effects of the present application are: by setting a reverse connection protection circuit, an input voltage stabilizing circuit, an output voltage stabilizing circuit, a control chip unit and a control circuit, the reverse connection protection circuit is used to prevent the positive and negative poles from being connected in reverse during installation, and to provide reverse connection protection for the input. The input voltage stabilizing circuit is used to maintain the stability of the input voltage, the output voltage stabilizing circuit is used to maintain the stability of the output voltage, the control chip unit is used to control the circuit, and the control circuit is used to adjust the output voltage so that the output voltage reaches an ideal state, thereby realizing the brightness control of the wireless conductive luminous characters, solving the problem of uneven light emission of the lamp beads in series, and making the brightness of the wireless conductive luminous characters uniform, thereby meeting people's needs and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 This is a circuit diagram of a wireless conductive luminous character dimming module according to one embodiment of the utility model.

[0016] Description of Reference Numerals

[0017] 1-reverse connection protection circuit; 2-input voltage stabilizing circuit; 3-output voltage stabilizing circuit; 4-control chip unit; 5-regulation circuit. DETAILED DESCRIPTION

[0018] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and parts will be depicted in a simple schematic manner in the drawings.

[0019] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish between parts or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0020] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0021] Please refer to Figure 1 , Figure 1 This is the circuit diagram of the dimming module of wireless conductive luminous characters. The dimming module of wireless conductive luminous characters is installed in the wireless conductive luminous characters and connected in series with the LED lamp in the wireless conductive luminous characters. The brightness of the LED lamp is changed by adjusting the voltage, thereby achieving the brightness adjustment of the wireless conductive luminous characters. The dimming module is installed in each wireless conductive luminous character, and its brightness is adjusted by the dimming module, which effectively solves the problem of uneven brightness of wireless conductive luminous characters.

[0022] The wireless conductive luminous character dimming module in this embodiment includes: a reverse connection protection circuit 1, an input voltage stabilizing circuit 2, an output voltage stabilizing circuit 3, a control chip unit 4 and a control circuit 5. Among them, the reverse connection protection circuit 1 is used to prevent the positive and negative poles from being connected in reverse during installation, and to provide reverse connection protection for the input. The input voltage stabilizing circuit 2 is used to maintain the stability of the input voltage, the output voltage stabilizing circuit 3 is used to maintain the stability of the output voltage, the control chip unit 4 is used to control the circuit, and the control circuit 5 is used to adjust the output voltage so that the output voltage reaches an ideal state.

[0023] Specifically, the input end of the reverse protection circuit 1 is connected to the input voltage, the output end of the reverse protection circuit 1 is connected to the input end of the input voltage stabilizing circuit 2, the output end of the input voltage stabilizing circuit 2 is connected to the input end electrically connected to the control chip unit 4, the output voltage stabilizing circuit 3 is electrically connected to the control chip unit 4, the output end of the output voltage stabilizing circuit 3 is connected to the output end of the control chip unit 4, and the regulation circuit 5 is connected to the control chip unit 4.

[0024] The input voltage is input into the input voltage stabilizing circuit 2 after passing through the reverse connection protection circuit 1, and is adjusted to a stable voltage by the input voltage stabilizing circuit 2 and input into the control chip unit 4. The voltage value is adjusted by the control chip unit 4 and is controlled by the output voltage stabilizing circuit 3 so that the output voltage tends to be stable. The output voltage is adjusted by manually adjusting the control circuit 5 to achieve adjustable output voltage, thereby obtaining an ideal output voltage.

[0025] In this way, by setting the reverse connection protection circuit 1, the input voltage stabilizing circuit 2, the output voltage stabilizing circuit 3, the control chip unit 4 and the regulation circuit 5, the output voltage can be regulated, thereby adjusting the brightness of the wireless conductive luminous characters, solving the problem of uneven font light emission, meeting people's needs, and improving the competitiveness of the product.

[0026] In this embodiment, the reverse connection protection circuit 1 uses a diode, the cathode of the diode is connected to the input voltage, and the anode of the diode is connected to the input end of the input voltage stabilizing circuit 2 .

[0027] The input voltage stabilizing circuit 2 includes a capacitor C2 and a capacitor C4, one end of the capacitor C2 is electrically connected to the output end of the reverse connection protection circuit 1 and the control chip unit 4, the other end of the capacitor C2 is grounded, and the capacitor C4 is connected in parallel to both ends of the capacitor C2. The capacitor C2 and the capacitor C4 both play a filtering role, so that the current output by the input voltage stabilizing circuit 2 is more stable.

[0028] The output voltage stabilizing circuit 3 includes a capacitor C1, a diode D1 and an inductor L1. One end of the capacitor C1 is electrically connected to the control chip unit 4, and the other end of the capacitor C1 is electrically connected to the output end of the control chip unit 4. The diode D1 is connected in series with the capacitor C1, and one end of the diode D1 is grounded. The inductor L1 is connected to the output end of the control chip unit 4, and one end of the inductor L1 is connected to one end of the capacitor C1.

[0029] In this embodiment, the cathode of the diode D1 is connected to one end of the capacitor C1, and the anode of the diode is grounded, so that the diode is reversely connected in the output voltage stabilizing circuit 3 to play an overvoltage protection role. The node between the capacitor C1 and the diode D1 is connected to the output end of the control chip unit 4. The capacitor C1 and the inductor L1 both play a filtering role.

[0030] The output end of the control chip unit 4 is output after being filtered by the inductor L1, and one end of the control circuit 5 is connected to one end of the inductor L1. Specifically, the control circuit 5 includes a resistor R3, an adjustable resistor VR1 and a capacitor C3. One end of the resistor R3 is electrically connected to the output end of the output voltage stabilizing circuit 3 and one end of the capacitor C3, respectively, and the other end is connected to the adjustable resistor VR1. The other end of the adjustable resistor VR1 is connected to the control chip unit 4 and is grounded together. The other end of the capacitor C3 is grounded.

[0031] In addition, the control circuit 5 further includes a resistor R4, one end of which is connected to the adjustable resistor VR1 and the control chip unit 4 respectively, and the other end of which is grounded, so as to protect the circuit.

[0032] The voltage output by the control chip unit 4 is input into the control circuit 5 after being stabilized by the output voltage stabilizing unit 3. In this embodiment, one end of the resistor R3 is connected to the inductor L1, and the other end of the resistor R3 is connected to the pin 1 of the adjustable resistor VR1, and the pin 2 of the adjustable resistor VR1 is connected to the control chip unit 4, wherein the pin 2 of the adjustable resistor VR1 is used to collect the voltage value output by the control chip unit 4, and by adjusting the resistance value of the adjustable resistor, the voltage output by the control chip unit 4 is adjusted, thereby realizing the controllable voltage.

[0033] Specifically, the control chip unit 4 includes a control chip U1, a capacitor C5, a resistor R1 and a resistor R2. The control chip U1 has eight pins. Among them, the first pin is the SW switch control terminal, and it is also the output terminal of the control chip unit 4. The second pin is the EN enable terminal, the third pin is the COMP comparison terminal, the fourth pin is the FB output voltage feedback terminal, the fifth pin is the ground terminal, the sixth pin is the FREQ frequency terminal, the seventh pin is the VIN voltage input terminal, and the eighth pin is the BST boost terminal. The output terminal of the input voltage stabilizing circuit 2 is connected to the seventh pin of the control chip U1, the input terminal of the output voltage stabilizing circuit 3 is connected to the eighth pin of the control chip U1, and the output terminal of the output voltage stabilizing circuit 3 is connected to the first pin of the control chip U1. One end of the control circuit 5 is connected to the first pin of the control chip U1, and the other end is connected to the fourth pin of the control chip U1, one end of the capacitor C5 is connected to the third pin of the control chip U1, the resistor is connected in series to the other end of the capacitor C5, and one end of the resistor R2 is grounded, which plays a role in suppressing interference. One end of the resistor R1 is connected to the sixth pin of the control chip U1 , and the other end thereof is grounded.

[0034] In this embodiment, the input voltage is input into the control chip U1 from the second pin after passing through the reverse connection protection circuit 1 and the input voltage stabilizing circuit 2. The eighth pin of the control chip U1 is connected to one end of the capacitor C3, and the first pin of the control chip U1 is connected to the other end of the capacitor C3. The first pin of the control chip U1 is also connected to the inductor L1 and one end of the control circuit 5, and the other end of the control circuit 5 is connected to the fourth pin of the control chip U1, so that the control circuit 5 receives the voltage feedback signal of the control chip U1, and acts on the first pin of the control chip U1 by adjusting the adjustable resistor VR1, thereby changing the output voltage.

[0035] The control circuit 5 further includes a resistor R5 , one end of which is connected to the second pin of the control chip U1 , and the other end of which is connected to the output end of the input voltage stabilizing circuit 2 , playing a voltage dividing role.

[0036] It should be noted that the input voltage of the wireless conductive luminous character dimming module is 0-90V, its output voltage is 0-48V, and its output power is 4W, which makes its adjustment range wider.

[0037] In addition, the size of the wireless conductive luminous character dimming module is length: 24.5mm, width: 6.7mm, thickness: 5.1mm, and its small size makes it more invisible when installed in the wireless conductive luminous character.

[0038] It should be noted that the utility model can be used not only for conductive glass, but also for wireless conductive media such as conductive acrylic and conductive film, so as to make the brightness of wireless conductive luminous characters uniform.

[0039] In summary: by setting up the reverse connection protection circuit 1, the input voltage stabilizing circuit 2, the output voltage stabilizing circuit 3, the control chip unit 4 and the control circuit 5, the brightness of the wireless conductive luminous characters can be controlled by adjusting the voltage, which solves the problem of uneven light emission of the lamp beads in series, making the brightness of the wireless conductive luminous characters uniform, thereby meeting people's needs and improving the competitiveness of the product.

[0040] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A wireless conductive luminous character dimming module, characterized in that: include: A reverse connection protection circuit (1), an input voltage stabilizing circuit (2), an output voltage stabilizing circuit (3), a control chip unit (4) and a control circuit (5), wherein the input end of the reverse connection protection circuit (1) is connected to an input voltage, the output end of the reverse connection protection circuit (1) is connected to the input end of the input voltage stabilizing circuit (2), the output end of the input voltage stabilizing circuit (2) is connected to the input end of the control chip unit (4), the output voltage stabilizing circuit (3) is connected to the control chip unit (4), and the output end of the output voltage stabilizing circuit (3) is connected to the output end of the control chip unit (4), and the control circuit (5) is connected to the control chip unit (4).

2. The wireless conductive luminous character dimming module according to claim 1, characterized in that: The input voltage stabilization circuit (2) comprises a capacitor C2 and a capacitor C4, one end of the capacitor C2 is electrically connected to the output end of the reverse connection protection circuit (1) and the control chip unit (4) respectively, the other end of the capacitor C2 is grounded, and the capacitor C4 is connected in parallel with the capacitor C2.

3. The wireless conductive luminous character dimming module according to claim 1, characterized in that: The output voltage stabilizing circuit (3) comprises a capacitor C1, a diode D1 and an inductor L1; one end of the capacitor C1 is electrically connected to the control chip unit (4); the other end of the capacitor C1 is connected to the output end of the control chip unit (4); the diode D1 is connected in series with the capacitor C1, and one end of the diode D1 is grounded; the inductor L1 is connected to the output end of the control chip unit (4), and one end of the inductor L1 is connected to one end of the capacitor C1.

4. The wireless conductive luminous character dimming module according to claim 1, characterized in that: The control chip unit (4) comprises a control chip U1, a capacitor C5, a resistor R1 and a resistor R2; the output end of the input voltage stabilizing circuit (2) is connected to the seventh pin of the control chip U1; the input end of the output voltage stabilizing circuit (3) is connected to the eighth pin of the control chip U1; the output end thereof is connected to the first pin of the control chip U1; one end of the regulating circuit (5) is connected to the first pin of the control chip U1; the other end thereof is connected to the fourth pin of the control chip U1; one end of the capacitor C5 is connected to the third pin of the control chip U1; the resistor R2 is connected in series to the other end of the capacitor C5; one end of the resistor R2 is grounded; one end of the resistor R1 is connected to the sixth pin of the control chip U1; the other end of the resistor R1 is grounded.

5. The wireless conductive luminous character dimming module according to claim 1, characterized in that: The control circuit (5) comprises a resistor R3, an adjustable resistor VR1 and a capacitor C3, one end of the resistor R3 is respectively connected to the output end of the output voltage stabilization circuit (3) and the capacitor C3, the other end of the resistor R3 is connected to one end of the adjustable resistor VR1, the other end of the adjustable resistor VR1 is connected to the control chip unit (4) and then grounded, and the other end of the capacitor C3 is grounded.

6. The wireless conductive luminous character dimming module according to claim 4, characterized in that: The control chip unit (4) further comprises a resistor R5, one end of which is connected to the second pin of the control chip U1, and the other end of which is connected to the output end of the input voltage stabilizing circuit (2).

7. The wireless conductive luminous character dimming module according to claim 5, characterized in that: The control circuit (5) further comprises a resistor R4, one end of which is connected to the adjustable resistor VR1 and the control chip unit (4), and the other end of which is grounded.

8. The wireless conductive luminous character dimming module according to claim 1, characterized in that: Its input voltage is 0-90V, output voltage is 0-48V, and output power is 4W.

9. The wireless conductive luminous character dimming module according to claim 1, characterized in that: Its length: 24.5mm, width: 6.7mm, thickness: 5.1mm.

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