An integrated intelligent multi-path dimmer switch power supply controller

Abstract

This utility model belongs to the field of intelligent dimming control technology, and in particular relates to an integrated intelligent multi-channel dimming switching power supply controller. The input terminal of the EMC filter is connected to an external AC power source. After voltage filtering, the EMC filter outputs the power to the PFC correction circuit. The PFC correction circuit increases the power and outputs the power to the BUCK step-down circuit for voltage regulation. The BUCK step-down circuit is connected to the output rectifier filter via a coupling inductor. The output rectifier filter is connected to an output interference signal filter. This filter further filters the interference signal and connects to the dimming and shunt temperature control protection circuit. The dimming and shunt temperature control protection circuit provides stable power to the output load. The dimming and shunt temperature control protection circuit is also connected to an external high-power switching power supply. It integrates multiple sub-devices into one unit, simplifying wiring and reducing device delay; it adds a power expansion interface for connecting to an external high-power switching power supply; and it adds independent over-temperature protection for enhanced safety and reliability.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent dimming control technology, and in particular relates to an integrated intelligent multi-channel dimming switching power supply controller. Background Technology

[0002] With the rapid development of intelligent lighting technology, dimming control systems are increasingly being used in commercial lighting, stage lighting, smart homes, and other fields. However, traditional dimming control systems still face many technical bottlenecks that need to be overcome.

[0003] Current dimming control systems on the market mainly adopt a separate architecture, with the switching power supply and dimming controller set up independently. This design leads to the following inherent defects: 1. Low system integration, requiring complex wiring connections, which not only increases installation and maintenance costs but also reduces system reliability; 2. In high-power applications, multiple sub-devices often need to work in parallel, and communication delays between devices can cause dimming asynchrony, severely affecting lighting effects; 3. Existing systems have significant deficiencies in protection mechanisms. Temperature protection only targets the power module itself and lacks real-time monitoring of the load, failing to respond promptly to load anomalies and posing serious safety hazards; 4. Poor system scalability, making it difficult to flexibly adapt to lighting needs of different power levels. Users need to configure dedicated equipment for different scenarios, resulting in high costs. To address the above problems, an integrated intelligent multi-channel dimming switching power supply controller is provided. Utility Model Content

[0004] To address the shortcomings and deficiencies of existing technologies, the purpose of this utility model is to provide an integrated intelligent multi-channel dimming switching power supply controller that is simple in structure, reasonable in design, and easy to use. It integrates multiple sub-devices into one unit, simplifies wiring, reduces transmission delay between devices, adds a power expansion interface, allows for external high-power switching power supply connection, and adds independent over-temperature protection for enhanced safety and reliability.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes an EMC filter, a PFC correction circuit, a BUCK step-down circuit, an output rectification filter, an output interference signal filter one, a dimming and shunt temperature control protection circuit, an external high-power switching power supply, an output interference signal filter two, a 12 / 24V switching power supply, and an output load; the input terminal of the EMC filter is connected to an external mains power supply. The EMC filter filters the mains power and outputs it to the PFC correction circuit. The PFC correction circuit improves the efficiency of the filtered voltage and outputs it to the BUCK step-down circuit for voltage regulation. The BUCK step-down circuit is coupled to the output rectification filter through an inductor. The output rectification filter outputs the smoothed DC power to the output interference signal filter one. The output interference signal filter one further filters the interference signal and connects it to the dimming and shunt temperature control protection circuit. The dimming and shunt temperature control protection circuit provides stable power supply to the output load; the dimming and shunt temperature control protection circuit is also connected to an external high-power switching power supply.

[0006] Preferably, the external high-power switching power supply is connected to a low-voltage external power supply, which in turn supplies power to a 12 / 24V switching power supply. The 12 / 24V switching power supply is connected to an output interference signal filter via a coupling inductor to form the external high-power switching power supply. The external high-power switching power supply is connected to a dimming and shunt temperature control protection circuit for power supply.

[0007] Preferably, the EMC filter, PFC correction circuit, BUCK step-down circuit, output rectification filter, output interference signal filter, dimming and shunt temperature control protection circuit are integrated into a single controller module.

[0008] Preferably, the controller module is connected to an external high-power switching power supply and output load via a plug-in interface.

[0009] Preferably, the BUCK step-down circuit consists of an isolation step-down circuit, a synchronous rectification circuit, and a precision constant voltage circuit.

[0010] The beneficial effects of this utility model after adopting the above structure are as follows: 1. It integrates the switching power supply and intelligent dimming function into one unit, making wiring simple and convenient.

[0011] 2. To accommodate high-power applications, a power expansion interface has been added; an external high-power switching power supply can be connected to meet the needs of various scenarios, while significantly saving costs for customers. 3. This solves the problem of multiple sub-devices needing to be connected in high-power application scenarios, which leads to asynchronous control and delays between sub-devices. A single device will not have this delay. 4. An independent over-temperature protection device has been added. Most power supplies on the market only have temperature protection when the switching power supply is working, but do not have temperature control protection for the actual output load. This can easily lead to fires caused by abnormal load failure. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, this utility model will be described in detail below with reference to the specific implementation and accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the PFC correction circuit 2 of this utility model; Figure 3 This is a schematic diagram of the BUCK step-down circuit 3 of this utility model; Figure labeling: 1. EMC filter; 2. PFC correction circuit; 3. BUCK step-down circuit; 4. Output rectification filter; 5. Output interference signal filter one; 6. Dimming and shunt temperature control protection circuit; 7. External extended high-power switching power supply; 8. Output interference signal filter two; 9. 12 / 24V switching power supply; 10. Output load; 11. Controller module A. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0015] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0016] See Figures 1-3As shown, this specific embodiment adopts the following technical solution: it includes an EMC filter 1, a PFC correction circuit 2, a BUCK step-down circuit 3, an output rectification filter 4, an output interference signal filter 1 5, a dimming and shunt temperature control protection circuit 6, an external extended high-power switching power supply 7, an output interference signal filter 2 8, a 12 / 24V switching power supply 9, and an output load 10; the input terminal of the EMC filter 1 is connected to an external mains power supply, and the EMC filter 1 filters the mains power and outputs it to the PFC correction circuit 2, which then provides... The high-efficiency filtered voltage output is given to the BUCK step-down circuit 3 for voltage regulation. The BUCK step-down circuit 3 is coupled to the output rectifier filter 4 through the coupling inductor. The output rectifier filter 4 outputs the smoothed DC after rectification and filtering to the output interference signal filter 5. The output interference signal filter 5 further filters the interference signal and then connects to the dimming and shunt temperature control protection circuit 6. The dimming and shunt temperature control protection circuit 6 provides stable power supply to the output load 10. An external high-power switching power supply 7 is also connected to the dimming and shunt temperature control protection circuit 6.

[0017] The external high-power switching power supply 7 is connected to a low-voltage external power supply, which in turn supplies power to a 12 / 24V switching power supply 9. The 12 / 24V switching power supply 9 is connected to the output interference signal filter 8 via a coupling inductor to form the external high-power switching power supply 7. The external high-power switching power supply 7 is connected to the dimming and shunt temperature control protection circuit 6 for power supply.

[0018] In addition, the EMC filter 1, PFC correction circuit 2, BUCK step-down circuit 3, output rectification filter 4, output interference signal filter 5, and dimming and shunt temperature control protection circuit 6 are integrated into an integrated controller module A; the controller module A is connected to the external extended high-power switching power supply 7 and output load 10 through a plug-in interface; the BUCK step-down circuit 3 consists of an isolation step-down circuit, a synchronous rectification circuit and a precision constant voltage circuit.

[0019] The beneficial effects of this specific implementation are: it integrates the switching power supply and intelligent dimming function into one unit, and connects to an external high-power switching power supply to meet the needs of various scenarios, while significantly saving costs for customers; it adds an independent over-temperature protection device. Power supplies on the market only have temperature protection for the switching power supply during operation, but do not have temperature control protection for the actual output load, which can easily lead to fire caused by abnormal load failure.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated intelligent multi-channel dimming switching power supply controller, characterized in that: It includes an EMC filter, a PFC correction circuit, a BUCK step-down circuit, an output rectifier filter, an output interference signal filter one, a dimming and shunt temperature control protection circuit, an external high-power switching power supply, an output interference signal filter two, a 12 / 24V switching power supply, and an output load. The input of the EMC filter is connected to an external AC power supply. After filtering the AC power, the EMC filter outputs the filtered power to the PFC correction circuit. The PFC correction circuit improves the efficiency of the filtered voltage and outputs it to the BUCK step-down circuit for voltage regulation. The BUCK step-down circuit is coupled to the output rectifier filter through an inductor. The output rectifier filter outputs the smoothed DC power to the output interference signal filter one. The output interference signal filter one further filters the interference signal and connects to the dimming and shunt temperature control protection circuit. The dimming and shunt temperature control protection circuit provides stable power to the output load. An external high-power switching power supply is also connected to the dimming and shunt temperature control protection circuit.

2. The integrated intelligent multi-channel dimming switching power supply controller according to claim 1, characterized in that: The external high-power switching power supply is connected to a low-voltage external power supply, which in turn supplies power to a 12 / 24V switching power supply. The 12 / 24V switching power supply is connected to an output interference signal filter via a coupling inductor to form the external high-power switching power supply. The external high-power switching power supply is connected to a dimming and shunt temperature control protection circuit for power supply.

3. The integrated intelligent multi-channel dimming switching power supply controller according to claim 1, characterized in that: The EMC filter, PFC correction circuit, BUCK step-down circuit, output rectification filter, output interference signal filter, dimming and shunt temperature control protection circuit are integrated into a single controller module.

4. The integrated intelligent multi-channel dimming switching power supply controller according to claim 3, characterized in that: The controller module is connected to an external high-power switching power supply and output load via a plug-in interface.

5. The integrated intelligent multi-channel dimming switching power supply controller according to claim 1, characterized in that: The BUCK step-down circuit consists of an isolation step-down circuit, a synchronous rectification circuit, and a precision constant voltage circuit.

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