Support multi-communication free switching intelligent LED drive power circuit

Abstract

Support multi -way communication free switching intelligent LED drive power supply circuit, including;MCU, the MCU is connected with first communication circuit, second communication circuit and third communication circuit;Still include with first communication circuit's first relay, with second communication circuit connection's second relay and with third communication circuit connection's third relay, first relay, second relay and third relay one end common connection, and this common connection point is connected with EMI circuit, EMI circuit is used for according to communication mode connection corresponding communication dimming line;Still include with the MCU is connected and is used for controlling each relay conduction's relay closure normally open circuit, the present application can support multiple application scenarios without replacing power supply, it is convenient for factory production and user uses, and multiple communication modes can be freely switched, and the practicality is stronger.

Description

Technical Field

[0001] This utility model relates to the field of LED power supplies, and in particular to an intelligent LED driver power supply circuit that supports free switching of multiple communication channels. Background Technology

[0002] Traditional switching power supplies typically employ a single dimming control method with fixed application scenarios, leading to numerous uncertainties for factories and sales agents when preparing inventory. Utility Model Content

[0003] To address the aforementioned issues, this technical solution provides an intelligent LED driver power supply circuit that supports free switching between multiple communication channels.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A smart LED driver power supply circuit that supports free switching between multiple communication channels, including;

[0006] MCU, wherein the MCU is connected to a first communication circuit, a second communication circuit and a third communication circuit;

[0007] It also includes a first relay connected to the first communication circuit, a second relay connected to the second communication circuit, and a third relay connected to the third communication circuit. One end of the first relay, the second relay, and the third relay are connected together, and an EMI circuit is connected to this common connection point. The EMI circuit is used to connect the corresponding communication modem according to the communication mode.

[0008] It also includes a normally open relay closing circuit connected to the MCU for controlling the conduction of each relay.

[0009] In some embodiments, the first communication circuit is an RS485 circuit.

[0010] In some embodiments, the second communication circuit is a D4I receiver / transmitter circuit or a DALI receiver / transmitter circuit.

[0011] In some embodiments, the third communication circuit is a three-in-one dimming sampling circuit.

[0012] In some embodiments, it also includes;

[0013] An EMI processing circuit has one end receiving mains power and the other end connected to a rectifier and filter circuit. One end of the rectifier and filter circuit is connected to an isolation transformer, and one end of the isolation transformer is connected to an output rectifier and filter circuit.

[0014] One end of the isolation transformer is also connected to an RS485 isolation power supply circuit, which is used to supply power to the RS485 circuit.

[0015] The isolation transformer is also connected to a switching power supply control chip, which is connected to the MCU via an isolation optocoupler.

[0016] The rectifier and filter circuit is also connected to an MCU isolated power supply circuit for supplying power to the MCU.

[0017] The beneficial effects of this application are:

[0018] This application supports multiple application scenarios without requiring power supply replacement, facilitating factory production and user use; furthermore, it allows for free switching between multiple communication methods, enhancing its practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0021] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please refer to Figure 1 As shown, the intelligent LED driver power supply circuit that supports free switching of multiple communication channels includes:

[0023] MCU, wherein the MCU is connected to a first communication circuit, a second communication circuit and a third communication circuit;

[0024] It also includes a first relay connected to the first communication circuit, a second relay connected to the second communication circuit, and a third relay connected to the third communication circuit. One end of the first relay, the second relay, and the third relay are connected together, and an EMI circuit is connected to this common connection point. The EMI circuit is used to connect the corresponding communication modem according to the communication mode.

[0025] It also includes a normally open relay closing circuit connected to the MCU for controlling the conduction of each relay;

[0026] Preferably, the first communication circuit is an RS485 circuit;

[0027] Preferably, the second communication circuit is a D4I receiving and transmitting circuit or a DALI receiving and transmitting circuit;

[0028] Preferably, the third communication circuit is a three-in-one dimming sampling circuit;

[0029] Each relay's coil terminal is connected to the relay's normally open closed circuit. The first relay is closed by default, at which point the RS485 circuit operates for communication. Then, according to the equipped optical communication mode, the corresponding relay is turned on to enable the LED power supply to activate the corresponding communication mode.

[0030] In this embodiment, it also includes;

[0031] An EMI processing circuit has one end receiving mains power and the other end connected to a rectifier and filter circuit. One end of the rectifier and filter circuit is connected to an isolation transformer, and one end of the isolation transformer is connected to an output rectifier and filter circuit.

[0032] One end of the isolation transformer is also connected to an RS485 isolation power supply circuit, which is used to supply power to the RS485 circuit.

[0033] The isolation transformer is also connected to a switching power supply control chip, which is connected to the MCU via an isolation optocoupler.

[0034] The rectifier and filter circuit is also connected to an MCU isolated power supply circuit for supplying power to the MCU.

[0035] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A smart LED driver power supply circuit that supports free switching between multiple communication channels, characterized in that: include; MCU, wherein the MCU is connected to a first communication circuit, a second communication circuit and a third communication circuit; It also includes a first relay connected to the first communication circuit, a second relay connected to the second communication circuit, and a third relay connected to the third communication circuit. One end of the first relay, the second relay, and the third relay are connected together, and an EMI circuit is connected to this common connection point. The EMI circuit is used to connect the corresponding communication modem according to the communication mode. It also includes a normally open relay closing circuit connected to the MCU for controlling the conduction of each relay.

2. The intelligent LED driver power supply circuit supporting free switching of multiple communication channels according to claim 1, characterized in that: The first communication circuit is an RS485 circuit.

3. The intelligent LED driver power supply circuit supporting free switching of multiple communication channels according to claim 2, characterized in that: The second communication circuit is a D4I receiving and transmitting circuit or a DALI receiving and transmitting circuit.

4. The intelligent LED driver power supply circuit supporting free switching of multiple communication channels according to claim 3, characterized in that: The third communication circuit is a three-in-one dimming sampling circuit.

5. The intelligent LED driver power supply circuit supporting free switching of multiple communication channels according to claim 1, characterized in that: Also includes; An EMI processing circuit has one end receiving mains power and the other end connected to a rectifier and filter circuit. One end of the rectifier and filter circuit is connected to an isolation transformer, and one end of the isolation transformer is connected to an output rectifier and filter circuit. One end of the isolation transformer is also connected to an RS485 isolation power supply circuit, which is used to supply power to the RS485 circuit. The isolation transformer is also connected to a switching power supply control chip, which is connected to the MCU via an isolation optocoupler. The rectifier and filter circuit is also connected to an MCU isolated power supply circuit for supplying power to the MCU.

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