A deep dimming and color adjusting lamp controller control circuit

Abstract

The utility model discloses a kind of depth light-adjusting color-changing lamp controller control circuit, including rectifier bridge DB1, voltage stabilizing diode ZD1, stabilizer Q1, diode D1, diode D2, polarity capacitor CE1, polarity capacitor CE2, main control chip U4 and light-adjusting chip U1, the input positive pole of rectifier bridge DB1 is connected input positive pole L by inductor L2 and fuse FS1, the input negative pole of rectifier bridge DB1 is connected input negative pole N by inductor L1, the input positive pole of rectifier bridge DB1 is connected by resistance R19, resistance R18 and resistance R17 with the second twenty-four pin of main control chip U4.The utility model structure is simple, and manufacturing cost is low, output power consumption is small, light-adjusting color-changing depth is high, light-adjusting color-changing is accurate, and stable performance is good, and overvoltage, overcurrent, undervoltage and other problems will not appear, realize the control of lamp light-adjusting color-changing of thousandth grade, improve the lighting effect of LED lamp.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically to a control circuit for a lighting controller that allows for deep dimming and color adjustment. Background Technology

[0002] The primary function of a lighting controller is to output stable voltage and current to LED lights. The controller circuitry plays a crucial role in the performance of LED lights. However, current lighting controllers suffer from high power consumption, low dimming and color temperature depth, inaccurate dimming and color temperature adjustment, and poor stability, easily leading to problems such as overvoltage, overcurrent, and undervoltage, thus reducing the lifespan of LED lights. Furthermore, existing lighting controllers have complex circuit structures, high manufacturing costs, inconvenient control, poor lighting effects, and slow response times, all of which affect the normal use of LED lights. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a control circuit for a deep dimming and color-tuning lamp controller that is simple in structure and low in manufacturing cost.

[0004] This utility model is achieved through the following technical solution:

[0005] A control circuit for a lighting fixture controller with deep dimming and color adjustment includes a rectifier bridge DB1, a Zener diode ZD1, a voltage regulator Q1, diodes D1 and D2, polarized capacitors CE1 and CE2, a main control chip U4, and a dimming chip U1. The positive input terminal of the rectifier bridge DB1 is connected to the positive input terminal L via an inductor L2 and a fuse FS1. The negative input terminal of the rectifier bridge DB1 is connected to the negative input terminal N via an inductor L1. The positive input terminal of the rectifier bridge DB1 is connected to the 24th pin of the main control chip U4 via resistors R19, R18, and R17. The 12th pin of the main control chip U4 is connected to the dimming chip via resistor R8. The third pin of U1, the twelfth pin of the main control chip U4 are connected to the fourth pin of the dimming chip U1 through resistors R8 and R12, the thirteenth pin of the main control chip U4 is connected to the first pin of the dimming chip U1 through resistor R10, the thirteenth pin of the main control chip U4 is connected to the second pin of the dimming chip U1 through resistors R11 and R9, the eighth pin of the dimming chip U1 is connected to the power output terminal V+ through resistor R11, the positive output of the rectifier bridge DB1 is connected to the power output terminal V+, the sixth pin of the dimming chip U1 is connected to the dimming output terminal C-, and the fifth pin of the dimming chip U1 is connected to the dimming output terminal W-.

[0006] Furthermore, the positive input L is connected to the negative input N through fuse FS1 and varistor RV1, and the positive input of rectifier bridge DB1 is connected to the negative input of rectifier bridge DB1 through capacitor C17.

[0007] Furthermore, the negative terminal of the Zener diode ZD1 is connected to the 24th pin of the main control chip U4, the positive terminal of the Zener diode ZD1 is grounded, the 24th pin of the main control chip U4 is grounded through resistor R16, and the 24th pin of the main control chip U4 is grounded through capacitor C5.

[0008] Furthermore, the positive output of the rectifier bridge DB1 is connected to the positive terminal of the polarized capacitor CE1, the negative terminal of the polarized capacitor CE1 is grounded, and the positive output of the rectifier bridge DB1 is grounded through resistors R1 and R2.

[0009] Furthermore, the first pin of the voltage regulator Q1 is connected to the positive output of the rectifier bridge DB1, the second pin of the voltage regulator Q1 is connected to the negative terminal of the diode D2, the positive terminal of the diode D2 is connected to the twentieth pin of the main control chip U4, the second pin of the voltage regulator Q1 is connected to the twentieth pin of the main control chip U4 through capacitor C1 and inductor L3, the positive terminal of the polarized capacitor CE2 is connected to the twentieth pin of the main control chip U4, and the negative terminal of the polarized capacitor CE2 is grounded.

[0010] Furthermore, the positive terminal of diode D1 is grounded, the negative terminal of diode D1 is connected to the third pin of voltage regulator Q1, the second pin of voltage regulator Q1 is grounded through capacitors C1 and C7, the negative terminal of diode D1 is connected to the second pin of voltage regulator Q1 through capacitor C1, the twentieth pin of main control chip U4 is grounded through resistor R14, and the twentieth pin of main control chip U4 is grounded through capacitor C2.

[0011] Furthermore, the twelfth pin of the main control chip U4 is grounded through capacitor C4, the fourth pin of the dimming chip U1 is grounded through resistor R7, the thirteenth pin of the main control chip U4 is grounded through capacitor C3, and the second pin of the dimming chip U1 is grounded through resistor R9.

[0012] Furthermore, the second pin of the main control chip U4 is connected to the antenna E1, and the sixth pin of the main control chip U4 is grounded through the resistor R23.

[0013] Furthermore, the 25th pin of the main control chip U4 is grounded through resistor R4, the 26th pin of the main control chip U4 is grounded through resistor R6, and the 27th pin of the main control chip U4 is grounded through resistor R5.

[0014] Furthermore, the main control chip U4 is model MHCB12S, the dimming chip U1 is model DX2283E, and the voltage regulator Q1 is model DX5035A3.

[0015] Compared to existing technologies, this invention connects the positive input terminal of rectifier bridge DB1 to the positive input terminal L via inductor L2 and fuse FS1, and the negative input terminal of rectifier bridge DB1 to the negative input terminal N via inductor L1. The twelfth pin of main control chip U4 is connected to the third pin of dimming chip U1 via resistor R8. The twelfth pin of main control chip U4 is connected to the fourth pin of dimming chip U1 via resistors R8 and R12. The thirteenth pin of main control chip U4 is connected to the first pin of dimming chip U1 via resistor R10. The second pin of the dimming chip U1 is connected via resistors R11 and R9. The dimming chip U1 is a dual-channel dimmable LED linear constant current control chip that implements PWM dimming function through the DIM port. It has very few external components, a simple circuit structure, low manufacturing cost, low output power consumption, high dimming and color adjustment depth, precise dimming and color adjustment, good stability, and will not have problems such as overvoltage, overcurrent, or undervoltage, thus improving the lifespan of LED lights. It is easy to control, has good lighting effect, and fast response speed, realizing thousand-level dimming and color adjustment control of lamps and improving the lighting effect of LED lights. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a circuit diagram of the control circuit for the deep dimming and color-adjusting lamp controller of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1The present invention discloses a control circuit for a lighting controller that allows for deep dimming and color adjustment. The circuit includes a rectifier bridge DB1, a Zener diode ZD1, a voltage regulator Q1, diodes D1 and D2, polarized capacitors CE1 and CE2, a main control chip U4, and a dimming chip U1. The positive input terminal of the rectifier bridge DB1 is connected to the positive input terminal L via an inductor L2 and a fuse FS1. The negative input terminal of the rectifier bridge DB1 is connected to the negative input terminal N via an inductor L1. The positive input terminal of the rectifier bridge DB1 is connected to the 24th pin of the main control chip U4 via resistors R19, R18, and R17. The 12th pin of the main control chip U4 is connected to... Resistor R8 is connected to the third pin of dimming chip U1. The twelfth pin of main control chip U4 is connected to the fourth pin of dimming chip U1 through resistors R8 and R12. The thirteenth pin of main control chip U4 is connected to the first pin of dimming chip U1 through resistor R10. The thirteenth pin of main control chip U4 is connected to the second pin of dimming chip U1 through resistors R11 and R9. The eighth pin of dimming chip U1 is connected to the power output terminal V+ through resistor R11. The positive output of rectifier bridge DB1 is connected to the power output terminal V+. The sixth pin of dimming chip U1 is connected to the dimming output terminal C-. The fifth pin of dimming chip U1 is connected to the dimming output terminal W-. The positive input terminal of rectifier bridge DB1 is connected to the positive input terminal L via inductor L2 and fuse FS1. The negative input terminal of rectifier bridge DB1 is connected to the negative input terminal N via inductor L1. Pin 12 of main control chip U4 is connected to pin 3 of dimming chip U1 via resistor R8. Pin 12 of main control chip U4 is connected to pin 4 of dimming chip U1 via resistors R8 and R12. Pin 13 of main control chip U4 is connected to pin 1 of dimming chip U1 via resistor R10. Pin 13 of main control chip U4 is connected to pin 1 of dimming chip U1 via resistor R11. Resistor R9 connects to the second pin of the dimming chip U1. The dimming chip U1 is a dual-channel dimmable LED linear constant current control chip. It realizes PWM dimming function through the DIM port. It has very few external components, simple circuit structure, low manufacturing cost, low output power consumption, high dimming and color adjustment depth, accurate dimming and color adjustment, good stability performance, and will not have problems such as overvoltage, overcurrent, and undervoltage. It improves the lifespan of LED lights, is easy to control, has good lighting effect, fast response speed, realizes thousand-level dimming and color adjustment control of lamps, and improves the lighting effect of LED lights.

[0020] The positive input L is connected to the negative input N through fuse FS1 and varistor RV1. The positive input of rectifier bridge DB1 is connected to the negative input of rectifier bridge DB1 through capacitor C17, which provides overcurrent and overvoltage protection for the circuit input and ensures stable input voltage.

[0021] The negative terminal of Zener diode ZD1 is connected to the 24th pin of the main control chip U4, and the positive terminal of Zener diode ZD1 is grounded. The 24th pin of the main control chip U4 is grounded through resistor R16 and capacitor C5, ensuring the stability and safety of the operating voltage of the main control chip U4.

[0022] The positive output terminal of rectifier bridge DB1 is connected to the positive terminal of polarized capacitor CE1, and the negative terminal of polarized capacitor CE1 is grounded. The positive output terminal of rectifier bridge DB1 is grounded through resistors R1 and R2 to ensure the stability and safety of the output voltage of rectifier bridge DB1.

[0023] The first pin of voltage regulator Q1 is connected to the positive output of rectifier bridge DB1. The second pin of voltage regulator Q1 is connected to the negative terminal of diode D2. The positive terminal of diode D2 is connected to the twentieth pin of main control chip U4. The second pin of voltage regulator Q1 is connected to the twentieth pin of main control chip U4 through capacitor C1 and inductor L3. The positive terminal of polarized capacitor CE2 is connected to the twentieth pin of main control chip U4, and the negative terminal of polarized capacitor CE2 is grounded. Voltage regulator Q1 and inductor L3 provide stable operating voltage and operating current to main control chip U4.

[0024] The positive terminal of diode D1 is grounded, and the negative terminal of diode D1 is connected to the third pin of voltage regulator Q1. The second pin of voltage regulator Q1 is grounded through capacitors C1 and C7. The negative terminal of diode D1 is connected to the second pin of voltage regulator Q1 through capacitor C1. The twentieth pin of main control chip U4 is grounded through resistor R14. The twentieth pin of main control chip U4 is grounded through capacitor C2, ensuring the safety and stability of voltage regulator Q1 and main control chip U4.

[0025] The twelfth pin of the main control chip U4 is grounded through capacitor C4, the fourth pin of the dimming chip U1 is grounded through resistor R7, the thirteenth pin of the main control chip U4 is grounded through capacitor C3, and the second pin of the dimming chip U1 is grounded through resistor R9, which improves the stability and safety of dimming control and output current.

[0026] The second pin of the main control chip U4 is connected to the antenna E1, and the sixth pin of the main control chip U4 is grounded through resistor R23 to ensure the stability of the antenna E1.

[0027] Pin 25 of the main control chip U4 is grounded through resistor R4, pin 26 of the main control chip U4 is grounded through resistor R6, and pin 27 of the main control chip U4 is grounded through resistor R5 to ensure the stability of the input voltage of the main control chip U4.

[0028] As a specific implementation method, the main control chip U4 is model MHCB12S, the dimming chip U1 is model DX2283E, and the voltage regulator Q1 is model DX5035A3. It has powerful dimming function, very few external components, simple circuit structure, low manufacturing cost, low output power consumption, high dimming and color adjustment depth, accurate dimming and color adjustment, and good stability performance.

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

Claims

1. A control circuit for a lighting fixture controller that adjusts brightness and color temperature, characterized in that: The circuit includes a rectifier bridge DB1, a Zener diode ZD1, a voltage regulator Q1, diodes D1 and D2, polarized capacitors CE1 and CE2, a main control chip U4, and a dimming chip U1. The positive input terminal of the rectifier bridge DB1 is connected to the positive input terminal L via an inductor L2 and a fuse FS1. The negative input terminal of the rectifier bridge DB1 is connected to the negative input terminal N via an inductor L1. The positive input terminal of the rectifier bridge DB1 is connected to the 24th pin of the main control chip U4 via resistors R19, R18, and R17. The 12th pin of the main control chip U4 is connected to the 3rd pin of the dimming chip U1 via resistor R8. The twelfth pin of the main control chip U4 is connected to the fourth pin of the dimming chip U1 through resistors R8 and R12. The thirteenth pin of the main control chip U4 is connected to the first pin of the dimming chip U1 through resistor R10. The thirteenth pin of the main control chip U4 is connected to the second pin of the dimming chip U1 through resistors R11 and R9. The eighth pin of the dimming chip U1 is connected to the power output terminal V+ through resistor R11. The positive output of the rectifier bridge DB1 is connected to the power output terminal V+. The sixth pin of the dimming chip U1 is connected to the dimming output terminal C-. The fifth pin of the dimming chip U1 is connected to the dimming output terminal W-.

2. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The positive input L is connected to the negative input N through fuse FS1 and varistor RV1, and the positive input of rectifier bridge DB1 is connected to the negative input of rectifier bridge DB1 through capacitor C17.

3. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The negative terminal of the Zener diode ZD1 is connected to the 24th pin of the main control chip U4, the positive terminal of the Zener diode ZD1 is grounded, the 24th pin of the main control chip U4 is grounded through resistor R16, and the 24th pin of the main control chip U4 is grounded through capacitor C5.

4. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The positive output of the rectifier bridge DB1 is connected to the positive terminal of the polarized capacitor CE1, the negative terminal of the polarized capacitor CE1 is grounded, and the positive output of the rectifier bridge DB1 is grounded through resistors R1 and R2.

5. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The first pin of the voltage regulator Q1 is connected to the positive output of the rectifier bridge DB1. The second pin of the voltage regulator Q1 is connected to the negative terminal of the diode D2. The positive terminal of the diode D2 is connected to the twentieth pin of the main control chip U4. The second pin of the voltage regulator Q1 is connected to the twentieth pin of the main control chip U4 through the capacitor C1 and the inductor L3. The positive terminal of the polarized capacitor CE2 is connected to the twentieth pin of the main control chip U4, and the negative terminal of the polarized capacitor CE2 is grounded.

6. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The positive terminal of diode D1 is grounded, the negative terminal of diode D1 is connected to the third pin of voltage regulator Q1, the second pin of voltage regulator Q1 is grounded through capacitors C1 and C7, the negative terminal of diode D1 is connected to the second pin of voltage regulator Q1 through capacitor C1, the twentieth pin of main control chip U4 is grounded through resistor R14, and the twentieth pin of main control chip U4 is grounded through capacitor C2.

7. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The twelfth pin of the main control chip U4 is grounded through capacitor C4, the fourth pin of the dimming chip U1 is grounded through resistor R7, the thirteenth pin of the main control chip U4 is grounded through capacitor C3, and the second pin of the dimming chip U1 is grounded through resistor R9.

8. The control circuit for a lamp controller with deep dimming and color adjustment according to claim 1, characterized in that: The second pin of the main control chip U4 is connected to the antenna E1, and the sixth pin of the main control chip U4 is grounded through the resistor R23.

9. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The 25th pin of the main control chip U4 is grounded through resistor R4, the 26th pin of the main control chip U4 is grounded through resistor R6, and the 27th pin of the main control chip U4 is grounded through resistor R5.

10. The control circuit for a lighting controller with deep dimming and color adjustment according to claim 1, characterized in that: The main control chip U4 is model MHCB12S, the dimming chip U1 is model DX2283E, and the voltage regulator Q1 is model DX5035A3.

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