Music lamp driving power supply

Abstract

The utility model discloses a music lamp driving power supply, comprising a housing and a circuit board arranged in the housing, the circuit board is provided with a power supply input end, an LLC power supply circuit connected with the power supply input end, a control circuit connected with the LLC power supply circuit, and a sampling circuit connected with the control circuit; the sampling circuit comprises an optical coupler, a triode, a sixty-sixth resistor, a sixty-seventh resistor, a sixty-eighth resistor, a thirty-fourth capacitor, a sixty-tenth resistor, a sixty-first resistor, a sixty-third resistor and a thirty-fifth capacitor. According to the utility model, the structure arrangement is reasonable, the whole circuit structure components are few, the processing cost can be reduced, and the LLC power supply circuit is adopted to cooperate with the control circuit, so that the stability and effectiveness of control can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of music lamp power supply technology, specifically relating to a music lamp driver power supply. Background Technology

[0002] Music lights are a common type of lighting fixture widely used in commercial fields such as advertising light boxes and artistic stages. They combine lighting modules with music modules and require corresponding power control modules, such as the music lighting system in CN202022997541.X. While this system can meet general usage needs, it requires the use of comparison and voltage measurement modules, which not only increases the cost of power control but also affects the stability of power supply and control, thus limiting its applicability. Utility Model Content

[0003] The purpose of this invention is to provide a music lamp driver power supply with a reasonable structure and stable operation.

[0004] The technical solution to achieve the purpose of this utility model is a music lamp driver power supply, including a housing and a circuit board disposed inside the housing. The circuit board is provided with a power input terminal, an LLC power supply circuit connected to the power input terminal, a control circuit connected to the LLC power supply circuit, and a sampling circuit connected to the control circuit.

[0005] The sampling circuit includes an optocoupler, a transistor, a 66th resistor, a 67th resistor, a 68th resistor, a 34th capacitor, a 60th resistor, a 61st resistor, a 63rd resistor, and a 35th capacitor;

[0006] The input terminal of the optocoupler is connected to the power input terminal through a series circuit of the sixtieth, sixty-first, and sixty-third resistors;

[0007] The output terminal of the optocoupler is connected to the base of the transistor, the emitter of the transistor is grounded, and the collector of the transistor is connected to the signal input terminal of the control circuit.

[0008] The sixty-sixth resistor is connected between the 3.3V power supply and the base of the transistor; the sixty-seventh resistor is connected between the 3.3V power supply and the collector of the transistor; the sixty-eighth resistor and the thirty-fourth capacitor are connected in parallel between the base and emitter of the transistor; and the thirty-fifth capacitor is connected between the collector and emitter of the transistor.

[0009] A further preferred embodiment is that the transistor is an NPN transistor.

[0010] A further preferred embodiment is that a constant current voltage regulator circuit is provided between the control circuit and the LLC power supply circuit.

[0011] A further preferred embodiment is that the main chip of the control circuit is model AB2027A3.

[0012] This utility model has positive effects: its structure is reasonable, its overall circuit structure has few components, which helps to reduce processing costs, and its use of LLC power supply circuit in conjunction with control circuit can also improve the stability and effectiveness of control. Attached Figure Description

[0013] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0014] Figure 1 This is a circuit block diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the LLC power supply circuit in this utility model.

[0016] Figure 3 This is a schematic diagram of the control circuit in this utility model;

[0017] Figure 4 This is a schematic diagram of the sampling circuit in this utility model;

[0018] Figure 5 This is a schematic diagram of the constant current voltage regulator circuit in this utility model.

[0019] Figure reference numerals: 1. Power input terminal; 2. LLC power supply circuit; 3. Control circuit; 4. Sampling circuit; 5. Constant current and voltage regulator circuit. Detailed Implementation

[0020] 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.

[0021] Example

[0022] See Figures 1 to 5As shown, a music lamp driver power supply includes a housing and a circuit board disposed inside the housing. The circuit board is provided with a power input terminal 1, an LLC power supply circuit 2 connected to the power input terminal, a control circuit 3 connected to the LLC power supply circuit, and a sampling circuit 4 connected to the control circuit. The control circuit and the LLC power supply circuit are conventional circuits of the prior art, which are simply applied and therefore not described in detail. The main chip of the control circuit is model AB2027A3.

[0023] The sampling circuit includes an optocoupler OC2, a transistor Q10, a 66th resistor R66, a 67th resistor R67, a 68th resistor R68, a 34th capacitor C34, a 60th resistor R60, a 61st resistor R61, a 63rd resistor R63, and a 35th capacitor C35. During connection, the input terminal of the optocoupler is connected to the power input terminal via a series circuit of the 60th, 61st, and 63rd resistors. The output terminal of the optocoupler is connected to the base of the transistor, the emitter of the transistor is grounded, and the collector of the transistor is connected to the signal input terminal of the control circuit. The 66th resistor is connected between the 3.3V power supply and the base of the transistor; the 67th resistor is connected between the 3.3V power supply and the collector of the transistor; the 68th resistor and the 34th capacitor are connected in parallel between the base and emitter of the transistor; and the 35th capacitor is connected between the collector and emitter of the transistor. Furthermore, in this embodiment, the transistor is an NPN transistor.

[0024] Meanwhile, a constant current voltage regulator circuit 5 is provided between the control circuit and the LLC power supply circuit.

[0025] This utility model has positive effects: its structure is reasonable, its overall circuit structure has few components, which helps to reduce processing costs, and its use of LLC power supply circuit in conjunction with control circuit can also improve the stability and effectiveness of control.

[0026] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A music lamp driver power supply, comprising a housing and a circuit board disposed within the housing, characterized in that: The circuit board is provided with a power input terminal, an LLC power supply circuit connected to the power input terminal, a control circuit connected to the LLC power supply circuit, and a sampling circuit connected to the control circuit; The sampling circuit includes an optocoupler, a transistor, a 66th resistor, a 67th resistor, a 68th resistor, a 34th capacitor, a 60th resistor, a 61st resistor, a 63rd resistor, and a 35th capacitor; The input terminal of the optocoupler is connected to the power input terminal through a series circuit of the sixtieth, sixty-first, and sixty-third resistors; The output terminal of the optocoupler is connected to the base of the transistor, the emitter of the transistor is grounded, and the collector of the transistor is connected to the signal input terminal of the control circuit. The sixty-sixth resistor is connected between the 3.3V power supply and the base of the transistor; the sixty-seventh resistor is connected between the 3.3V power supply and the collector of the transistor; the sixty-eighth resistor and the thirty-fourth capacitor are connected in parallel between the base and emitter of the transistor; and the thirty-fifth capacitor is connected between the collector and emitter of the transistor.

2. The music lamp driver power supply according to claim 1, characterized in that: The transistor is an NPN type transistor.

3. The music lamp driver power supply according to claim 1, characterized in that: A constant current voltage regulator circuit is provided between the control circuit and the LLC power supply circuit.

4. The music lamp driver power supply according to claim 1, characterized in that: The main chip of the control circuit is model AB2027A3.

Images