LED bracelet control circuit

Abstract

The utility model discloses an LED bracelet control circuit, which comprises a charging chip U1, a main control chip U2, a battery protection chip U3, a rechargeable battery BT1, a field effect transistor Q1, a USB interface USB1, an interface J1 and an interface J2, the positive electrode of the rechargeable battery BT1 is connected with the E end of the field effect transistor Q1, the positive electrode of the rechargeable battery BT1 is connected with the B end of the field effect transistor Q1 through a resistor R6, and the USB interface USB1 is connected with the USB interface J2. The fifth pin of the main control chip U2 is connected with the second pin of the interface J1 through a resistor R4, the C end of the field effect transistor Q1 is connected with the first pin of the interface J1, the interface J2 is provided with pins corresponding to the interface J1, and the interface J2 is connected with a plurality of RGB lamp beads which are connected in parallel. The LED bracelet is simple in structure, stable in charging control and protection, stable in charging and power supply, stable in light emitting control of the LED bracelet, accurate in control and good in consumer experience.

Description

Technical Field

[0001] The utility model relates to the technical field of control circuits, and in particular to an LED bracelet control circuit. Background Art

[0002] LED bracelets are a type of bracelet that can emit light and is worn on people's wrists. They are decorative and lighting tools that are easy to carry and can be used in many occasions. With the improvement of people's living standards, people's requirements for LED bracelets are getting higher and higher. Later, LED colorful bracelets appeared, which enhanced the atmosphere of various activities and enriched people's lives. However, the structure of the existing LED bracelet control circuit is complex, and the charging and power supply are not stable enough, resulting in unstable light control of the LED bracelet and poor consumer experience. Therefore, in order to avoid the shortcomings of the prior art, it is necessary to improve the prior art. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide an LED bracelet control circuit with a simple structure and stable control.

[0004] The utility model is realized by the following technical solutions:

[0005] A LED bracelet control circuit, including a charging chip U1, a main control chip U2, a battery protection chip U3, a rechargeable battery BT1, a field effect tube Q1, a USB interface USB1, an interface J1 and an interface J2, the positive electrode of the rechargeable battery BT1 is connected to the E end of the field effect tube Q1, the positive electrode of the rechargeable battery BT1 is connected to the B end of the field effect tube Q1 through a resistor R6, the fifth pin of the main control chip U2 is connected to the second pin of the interface J1 through a resistor R4, the C end of the field effect tube Q1 is connected to the first pin of the interface J1 Pin connection, the interface J2 is respectively provided with pins corresponding to the interface J1, the interface J2 is connected to a number of RGB lamp beads connected in parallel, the seventh pin of the main control chip U2 is connected to the fifth pin of the battery protection chip U3 through the button S1, the second pin of the battery protection chip U3 is connected to the negative electrode of the rechargeable battery BT1, the third pin of the charging chip U1 is connected to the positive electrode of the rechargeable battery BT1, and the third pin of the charging chip U1 is connected to the negative electrode of the rechargeable battery BT1 through the resistor R5 and the capacitor C3.

[0006] Furthermore, the RGB lamp beads are connected in parallel with a plurality of capacitors.

[0007] Furthermore, it also includes a charging indicator light LED1, the positive electrode of the charging indicator light LED1 is connected to the fifth pin of the USB interface USB1 through a resistor R3, the negative electrode of the charging indicator light LED1 is respectively connected to the first pin and the fifth pin of the charging chip U1, and the second pin of the USB interface USB1 is connected to the fifth pin of the USB interface USB1.

[0008] Furthermore, the fourth pin of the charging chip U1 is connected to the fifth pin of the USB interface USB1 through a resistor R2, and the fourth pin of the charging chip U1 is grounded through a capacitor C1.

[0009] Furthermore, the sixth pin of the charging chip U1 is grounded through a resistor R1, and the second pin of the charging chip U1 is grounded.

[0010] Furthermore, the eighth pin of the main control chip U2 is grounded.

[0011] Furthermore, the first pin of the main control chip U2 is grounded through a capacitor C2, and the first pin of the main control chip U2 is connected to the positive electrode of the rechargeable battery BT1.

[0012] Furthermore, the fourth pin, the fifth pin and the sixth pin of the battery protection chip U3 are all grounded.

[0013] Furthermore, the first pin and the sixth pin of the USB interface USB1 are both grounded, and the third pin of the interface J1 is grounded.

[0014] Furthermore, the chip model of the charging chip U1 is 57BG, the chip model of the main control chip U2 is FT60E12, the chip model of the battery protection chip U3 is 3130, and the model of the field effect tube Q1 is N57T.

[0015] Compared with the prior art, the utility model includes a LED bracelet control circuit including a charging chip U1, a main control chip U2, a battery protection chip U3, a rechargeable battery BT1, a field effect transistor Q1, a USB interface USB1, an interface J1 and an interface J2. The charging chip U1 is provided to control and protect the charging, the battery protection chip U3 is provided to protect the charging and power supply of the battery, and the main control chip U2 and the field effect transistor Q1 are provided to control the output voltage and current, so that the structure of the LED bracelet control circuit is simple, the charging and power supply are stable, the LED bracelet light control is stable, the control is precise, and the consumer experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a circuit schematic diagram of the LED bracelet control circuit of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 The utility model is shown as a control circuit of an LED bracelet, comprising a charging chip U1, a main control chip U2, a battery protection chip U3, a rechargeable battery BT1, a field effect tube Q1, a USB interface USB1, an interface J1 and an interface J2, the positive electrode of the rechargeable battery BT1 is connected to the E end of the field effect tube Q1, the positive electrode of the rechargeable battery BT1 is connected to the B end of the field effect tube Q1 through a resistor R6, the fifth pin of the main control chip U2 is connected to the second pin of the interface J1 through a resistor R4, the C end of the field effect tube Q1 is connected to the first pin of the interface J1, the interface J2 is respectively provided with pins corresponding to the interface J1, and the interface J2 is connected to a plurality of RGB lamp beads connected in parallel, the seventh pin of the main control chip U2 is connected to the fifth pin of the battery protection chip U3 through a button S1, the second pin of the battery protection chip U3 is connected to the negative electrode of the rechargeable battery BT1, the third pin of the charging chip U1 is connected to the positive electrode of the rechargeable battery BT1, and the third pin of the charging chip U1 is connected to the negative electrode of the rechargeable battery BT1 through a resistor R5 and a capacitor C3. The LED bracelet control circuit includes a charging chip U1, a main control chip U2, a battery protection chip U3, a rechargeable battery BT1, a field effect transistor Q1, a USB interface USB1, an interface J1 and an interface J2. The charging chip U1 is provided to control and protect the charging, the battery protection chip U3 is provided to protect the charging and power supply of the battery, and the main control chip U2 and the field effect transistor Q1 are provided to control the output voltage and current, so that the structure of the LED bracelet control circuit is simple, the charging and power supply are stable, the LED bracelet light control is stable, the control is precise, and the consumer experience is good.

[0020] The RGB lamp beads are connected in parallel with several capacitors to stabilize the voltage of the RGB lamp beads and improve the stability and safety of the operation of the RGB lamp beads.

[0021] It also includes a charging indicator light LED1, the positive electrode of the charging indicator light LED1 is connected to the fifth pin of the USB interface USB1 through a resistor R3, the negative electrode of the charging indicator light LED1 is respectively connected to the first pin and the fifth pin of the charging chip U1, and the second pin of the USB interface USB1 is connected to the fifth pin of the USB interface USB1, so as to indicate the charging of the LED bracelet and improve the safety of charging.

[0022] The fourth pin of the charging chip U1 is connected to the fifth pin of the USB interface USB1 through the resistor R2, and the fourth pin of the charging chip U1 is grounded through the capacitor C1, thereby improving the stability and safety of the operation of the charging chip U1.

[0023] The sixth pin of the charging chip U1 is grounded through the resistor R1, and the second pin of the charging chip U1 is grounded, thereby improving the safety of the operation of the charging chip U1.

[0024] The eighth pin of the main control chip U2 is grounded, thereby improving the safety of the operation of the main control chip U2.

[0025] The first pin of the main control chip U2 is grounded through the capacitor C2, and the first pin of the main control chip U2 is connected to the positive electrode of the rechargeable battery BT1, thereby improving the safety of the power supply of the main control chip U2.

[0026] The fourth pin, the fifth pin and the sixth pin of the battery protection chip U3 are all grounded, thereby improving the safety of the operation of the battery protection chip U3.

[0027] The first pin and the sixth pin of the USB interface USB1 are both grounded, and the third pin of the interface J1 is grounded, thereby improving the safety of the connection and use of the USB interface USB1 and the interface J1.

[0028] As a specific implementation method, the chip model of the charging chip U1 is 57BG, the chip model of the main control chip U2 is FT60E12, the chip model of the battery protection chip U3 is 3130, and the model of the field effect tube Q1 is N57T. The battery charging and power supply protection are stable, the voltage and current control are stable, the charging and power supply are stable, and the LED bracelet light control is stable and precise.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED bracelet control circuit, characterized in that: It includes a charging chip U1, a main control chip U2, a battery protection chip U3, a rechargeable battery BT1, a field effect tube Q1, a USB interface USB1, an interface J1 and an interface J2, the positive electrode of the rechargeable battery BT1 is connected to the E end of the field effect tube Q1, the positive electrode of the rechargeable battery BT1 is connected to the B end of the field effect tube Q1 through a resistor R6, the fifth pin of the main control chip U2 is connected to the second pin of the interface J1 through a resistor R4, the C end of the field effect tube Q1 is connected to the first pin of the interface J1, and the The interface J2 is respectively provided with pins corresponding to the interface J1, and the interface J2 is connected to a plurality of RGB lamp beads connected in parallel. The seventh pin of the main control chip U2 is connected to the fifth pin of the battery protection chip U3 through the button S1, the second pin of the battery protection chip U3 is connected to the negative electrode of the rechargeable battery BT1, the third pin of the charging chip U1 is connected to the positive electrode of the rechargeable battery BT1, and the third pin of the charging chip U1 is connected to the negative electrode of the rechargeable battery BT1 through the resistor R5 and the capacitor C3.

2. The LED bracelet control circuit according to claim 1, characterized in that: The RGB lamp beads are connected in parallel with a plurality of capacitors.

3. The LED bracelet control circuit according to claim 1, characterized in that: It also includes a charging indicator light LED1, the positive electrode of the charging indicator light LED1 is connected to the fifth pin of the USB interface USB1 through a resistor R3, the negative electrode of the charging indicator light LED1 is respectively connected to the first pin and the fifth pin of the charging chip U1, and the second pin of the USB interface USB1 is connected to the fifth pin of the USB interface USB1.

4. The LED bracelet control circuit according to claim 1, characterized in that: The fourth pin of the charging chip U1 is connected to the fifth pin of the USB interface USB1 through a resistor R2, and the fourth pin of the charging chip U1 is grounded through a capacitor C1.

5. The LED bracelet control circuit according to claim 1, characterized in that: The sixth pin of the charging chip U1 is grounded through the resistor R1, and the second pin of the charging chip U1 is grounded.

6. The LED bracelet control circuit according to claim 1, characterized in that: The eighth pin of the main control chip U2 is grounded.

7. The LED bracelet control circuit according to claim 1, characterized in that: The first pin of the main control chip U2 is grounded through a capacitor C2, and the first pin of the main control chip U2 is connected to the positive electrode of the rechargeable battery BT1.

8. The LED bracelet control circuit according to claim 1, characterized in that: The fourth pin, the fifth pin and the sixth pin of the battery protection chip U3 are all grounded.

9. The LED bracelet control circuit according to claim 1, characterized in that: The first pin and the sixth pin of the USB interface USB1 are both grounded, and the third pin of the interface J1 is grounded.

10. The LED bracelet control circuit according to claim 1, characterized in that: The chip model of the charging chip U1 is 57BG, the chip model of the main control chip U2 is FT60E12, the chip model of the battery protection chip U3 is 3130, and the model of the field effect tube Q1 is N57T.

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