Intelligent dimming power supply with wireless communication function

Abstract

The utility model discloses an intelligent dimming power supply with wireless communication, which relates to the field of voltage supply and comprises a dimming module used for adjusting the light brightness of an LED load; the power supply module is used for supplying power to the power metering module and the LORA communication module; the power metering module is used for detecting the power used by the dimming module and outputting the power to the LORA communication module; compared with the prior art, the utility model has the beneficial effects that the power control circuit is used for providing a constant current power supply, and the output filter circuit is used for filtering to supply power to the LED load; through the LORA communication module, remote control is achieved, user operation is facilitated, meanwhile, a wired dimming circuit (power control circuit) is reserved, diversified dimming control is provided, an energy-saving and environment-friendly illumination control mode is provided, and manual operation can be greatly reduced through centralized management for large buildings or public areas.

Description

Technical Field

[0001] The utility model relates to the field of voltage supply, in particular to an intelligent dimming power supply with wireless communication. Background Art

[0002] With the development of technology, people's demand for lighting control is growing. Traditional lighting control methods mainly rely on manual switches or simple timer switches. However, these methods cannot meet the fine control needs of some special occasions, such as automatically adjusting the light brightness according to factors such as ambient light and activity type. In addition, for large buildings or public areas, manual control is very inconvenient due to the large number of switches.

[0003] Therefore, the existing lighting control method is not precise enough and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent dimming power supply with wireless communication to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An intelligent dimming power supply with wireless communication, comprising:

[0007] Dimming module, used to adjust the light brightness of LED load;

[0008] Power supply module, used to supply power to the power metering module and LORA communication module;

[0009] The power metering module is used to detect the power used by the dimming module and output it to the LORA communication module;

[0010] The LORA communication module is used to construct the power metering module. Through the communication between the module and the host computer, the LORA communication module outputs the power consumption of the dimming module detected by the power metering module to the host computer; receives the dimming signal from the host computer and outputs it to the dimming module through the LORA communication module;

[0011] The output end of the power supply module is connected to the first input end of the power metering module and the first input end of the LORA communication module, the output end of the dimming module is connected to the second input end of the power metering module, the output end of the LORA communication module is connected to the input end of the dimming module, and the output end of the power metering module is connected to the second input end of the LORA communication module;

[0012] The dimming module includes:

[0013] The input filter circuit is used to filter out the clutter of the input AC power, suppress the power supply noise and electromagnetic interference in the circuit, and then convert the AC power into DC power;

[0014] A power control circuit, used to control the voltage output to the output filter circuit;

[0015] Output filter circuit, used to filter the input voltage and then supply it to the LED load;

[0016] The dimming control circuit is used to receive the dimming signal input by the LORA communication module and feed it back to the power control circuit, thereby changing the input voltage of the output filter circuit;

[0017] The output end of the input filter circuit is connected to the first input end of the power control circuit, the output end of the power control circuit is connected to the input end of the output filter circuit, and the output end of the dimming control circuit is connected to the second input end of the power control circuit.

[0018] As a further solution of the utility model: the power control circuit includes a chip U1 and a field effect transistor Q1. The model of the chip U1 is SY5882. Pin 8 of the chip U1 is connected to one end of the resistor R8A, and the other end of the resistor R8A is connected to the cathode of the diode ZD2, the third end of the optocoupler U02, and one end of the resistor R8. The anode of the diode ZD2 is grounded, and the fourth end of the optocoupler U02 is grounded. The other end of the resistor R8 is connected to the cathode of the diode D5B, the anode of the diode D5B is connected to the anode of the diode D5A, and the cathode of the diode D5A is connected to the power supply voltage VCC. Pin 5 of the chip U1 is connected to one end of the resistor R17 through the resistor R16, and the other end of the resistor R17 is connected to the G pole of the field effect transistor Q1. The S pole of the field effect transistor Q1 is grounded through the resistor RS0, and the D pole of the field effect transistor Q1 is connected to the first end of the transformer T1. The third end of the transformer T1 is connected to the output end of the input filter circuit through the inductor L1.

[0019] As a further solution of the utility model: the dimming control circuit includes a chip U01, the model of the chip U01 is SY5867, the pin 5 of the chip U01 is connected to the output end of the LORA communication module, the pin 6 of the chip U01 is connected to the first end of the optocoupler U02, and the second end of the optocoupler U02 is grounded.

[0020] As a further solution of the utility model: the power metering module includes a chip U8, the model of chip U8 is HLW8032, the IP pin of chip U8 is connected to the neutral line ACN through resistors R41 and R38 in sequence, the IN pin of chip U8 is connected to the neutral line ACN through resistor R39, the VP pin of chip U8 is connected to the live line ACL through resistors R45, R44, R43, and R42 in sequence, the TX pin of chip U8 is connected to the second end of the optocoupler U6, the first end of the optocoupler U6 introduces a 5V voltage through resistor R37, the fourth end of the optocoupler U6 is grounded, and the third end of the optocoupler U6 is connected to the second input end of the LORA communication module.

[0021] As a further solution of the utility model: the LORA communication module includes a communication chip P2, the model of the communication chip P2 is SX1278, pins 7, 8, and 9 of the communication chip P2 are connected to the output end of the power metering module, and pins 4, 5, and 6 of the communication chip P2 are connected to the input end of the dimming module.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a constant current power supply through a power control circuit, and then filters through an output filter circuit to power the LED load; through the LORA communication module, remote control is achieved, which is convenient for user operation, while retaining the wired dimming circuit (power control circuit), providing diversified dimming control, and providing an energy-saving and environmentally friendly lighting control method. For large buildings or public areas, centralized management can be used to greatly reduce manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the circuit diagram of the dimming module.

[0024] Figure 2 This is the circuit diagram of the power supply module, power metering module and LORA communication module. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 and Figure 2 , an intelligent dimming power supply with wireless communication, comprising:

[0027] Dimming module, used to adjust the light brightness of LED load;

[0028] Power supply module, used to supply power to the power metering module and LORA communication module;

[0029] The power metering module is used to detect the power used by the dimming module and output it to the LORA communication module;

[0030] The LORA communication module is used to construct the power metering module. Through the communication between the module and the host computer, the LORA communication module outputs the power consumption of the dimming module detected by the power metering module to the host computer; receives the dimming signal from the host computer and outputs it to the dimming module through the LORA communication module;

[0031] The output end of the power supply module is connected to the first input end of the power metering module and the first input end of the LORA communication module, the output end of the dimming module is connected to the second input end of the power metering module, the output end of the LORA communication module is connected to the input end of the dimming module, and the output end of the power metering module is connected to the second input end of the LORA communication module;

[0032] The dimming module includes:

[0033] The input filter circuit is used to filter out the clutter of the input AC power, suppress the power supply noise and electromagnetic interference in the circuit, and then convert the AC power into DC power;

[0034] A power control circuit, used to control the voltage output to the output filter circuit;

[0035] Output filter circuit, used to filter the input voltage and then supply it to the LED load;

[0036] The dimming control circuit is used to receive the dimming signal input by the LORA communication module and feed it back to the power control circuit, thereby changing the input voltage of the output filter circuit;

[0037] The output end of the input filter circuit is connected to the first input end of the power control circuit, the output end of the power control circuit is connected to the input end of the output filter circuit, and the output end of the dimming control circuit is connected to the second input end of the power control circuit.

[0038] In the specific embodiment: please refer to Figure 1 and Figure 2 In the input filter circuit, the AC filter circuit is composed of X capacitors CX1 and CX2, Y capacitors CY1 and CY2, and common mode inductors LF1 and LF2, which can effectively filter the AC input end and suppress the power supply noise and electromagnetic interference in the circuit, thereby improving the quality and reliability of the signal. The surge current suppression circuit is composed of X capacitors CX1 and CX2, varistors ZV2, ZV3, ZV4, and discharge tube GDT2, which can effectively suppress the surge voltage and current generated when the power is connected, and absorb the energy of overvoltage to reduce the impact of voltage on the equipment. The filtered voltage passes through the rectifier bridge BD1 for full-bridge rectification, converting the AC mains input power into unidirectional DC power to provide stable and effective DC input for subsequent circuits.

[0039] In the output filter circuit, DC power is input through transformer T1, filtered by capacitors EC1 and EC7, and becomes smooth DC power, which is finally output to the LED load (LED+, LED-).

[0040] In the power supply module, the input 220V AC power is stepped down by transformer T2, rectified and filtered by diode D4 and capacitor EC5, and then outputs 12V voltage through voltage regulator U5. The 12V voltage outputs 5V voltage through voltage regulator U4. Similarly, the AC power output by transformer T2 is rectified and filtered by diode D4 and capacitor EC4, and then outputs 5V voltage through voltage regulator U2.

[0041] In this example: See Figure 1 The power control circuit includes a chip U1 and a field effect transistor Q1. The model of the chip U1 is SY5882. Pin 8 of the chip U1 is connected to one end of a resistor R8A, and the other end of the resistor R8A is connected to the cathode of a diode ZD2, the third end of an optocoupler U02, and one end of a resistor R8. The anode of the diode ZD2 is grounded, and the fourth end of the optocoupler U02 is grounded. The other end of the resistor R8 is connected to the cathode of a diode D5B, and the anode of the diode D5B is connected to the anode of a diode D5A. The cathode of the diode D5A is connected to a power supply voltage VCC. Pin 5 of the chip U1 is connected to one end of a resistor R17 through a resistor R16, and the other end of the resistor R17 is connected to the G pole of the field effect transistor Q1. The S pole of the field effect transistor Q1 is grounded through a resistor RS0, and the D pole of the field effect transistor Q1 is connected to the first end of a transformer T1. The third end of the transformer T1 is connected to the output end of the input filter circuit through an inductor L1.

[0042] Chip U1 controls the conduction state of field effect transistor Q1, thereby changing whether the input side (third end, first end) of transformer T1 is grounded through field effect transistor Q1, thereby changing the energy stored in the coil on the input side of transformer T1, thereby changing the size of the DC power finally output by transformer T1.

[0043] Resistors R14B, R14A, R14, R15, capacitors C3, C3A, and diode D4 can effectively suppress overvoltage, provide overvoltage protection for field effect transistor Q1, and prevent the field effect transistor Q1 from being damaged due to excessive output power.

[0044] In this example: See Figure 1 The dimming control circuit includes a chip U01, the model of the chip U01 is SY5867, the pin 5 of the chip U01 is connected to the output end of the LORA communication module, the pin 6 of the chip U01 is connected to the first end of the optical coupler U02, and the second end of the optical coupler U02 is grounded.

[0045] Chip U01 acts as a dimming interface converter. Pin 5 of dimming conversion chip U01 receives the PWN signal provided by the LORA module (remote control by transmitting control signals from the host computer) or receives an external 0-10V dimming signal (close-range control) through resistor R05 and diode D31. Pin 6 of dimming conversion chip U01 outputs a PWM signal through optocoupler U02 ( Figure 1U02A, U02B) are fed back to pin 8 of chip U1 to achieve isolated dimming.

[0046] In this example: See Figure 2 The power metering module includes a chip U8, the model of the chip U8 is HLW8032, the IP pin of the chip U8 is connected to the neutral line ACN through resistors R41 and R38 in sequence, the IN pin of the chip U8 is connected to the neutral line ACN through resistor R39, the VP pin of the chip U8 is connected to the live line ACL through resistors R45, R44, R43, and R42 in sequence, the TX pin of the chip U8 is connected to the second end of the optocoupler U6, the first end of the optocoupler U6 introduces a 5V voltage through resistor R37, the fourth end of the optocoupler U6 is grounded, and the third end of the optocoupler U6 is connected to the second input end of the LORA communication module.

[0047] The live wire ACL and the neutral wire ACN are powered by the input filter circuit, that is, the entire dimming module is powered. The chip U8 collects the current information flowing through the live wire ACL and the neutral wire ACN to detect the power used by the dimming module and output it to the LORA communication module.

[0048] In this example: See Figure 2 The LORA communication module includes a communication chip P2, the model of the communication chip P2 is SX1278, the pins 7, 8, and 9 of the communication chip P2 are connected to the output end of the power metering module, and the pins 4, 5, and 6 of the communication chip P2 are connected to the input end of the dimming module.

[0049] The LORA communication module communicates with the host computer, outputs the control signal input by the host computer through the PWM signal, receives the metering signal from the power metering module, and feeds it back to the host computer.

[0050] The working principle of the utility model is as follows: a dimming module is used to adjust the light brightness of an LED load; a power supply module is used to supply power to a power metering module and a LORA communication module; the power metering module is used to detect the power used by the dimming module and output it to the LORA communication module; the LORA communication module is used to construct a power metering module, and through communication between the module and a host computer, the LORA communication module outputs the power consumption of the dimming module detected by the power metering module to the host computer; a dimming signal of the host computer is received and output to the dimming module through the LORA communication module; the dimming module comprises: an input filter circuit is used to filter out clutter on the input AC power, suppress power supply noise and electromagnetic interference in the circuit, and then convert the AC power into DC power; a power control circuit is used to control the voltage output to the output filter circuit; the output filter circuit is used to filter the input voltage and then supply it to the LED load; a dimming control circuit is used to receive the dimming signal input by the LORA communication module, and feed it back to the power control circuit, thereby changing the input voltage of the output filter circuit.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent dimming power supply with wireless communication, characterized in that: The intelligent dimming power supply with wireless communication includes: Dimming module, used to adjust the light brightness of LED load; Power supply module, used to supply power to the power metering module and LORA communication module; The power metering module is used to detect the power used by the dimming module and output it to the LORA communication module; The LORA communication module is used to construct the power metering module. Through the communication between the module and the host computer, the LORA communication module outputs the power consumption of the dimming module detected by the power metering module to the host computer; receives the dimming signal from the host computer and outputs it to the dimming module through the LORA communication module; The output end of the power supply module is connected to the first input end of the power metering module and the first input end of the LORA communication module, the output end of the dimming module is connected to the second input end of the power metering module, the output end of the LORA communication module is connected to the input end of the dimming module, and the output end of the power metering module is connected to the second input end of the LORA communication module; The dimming module includes: Input filter circuit, used to filter out the clutter of input AC power, suppress power supply noise and electromagnetic interference in the circuit, and then convert AC power into DC power; A power control circuit, used to control the voltage output to the output filter circuit; Output filter circuit, used to filter the input voltage and then supply it to the LED load; The dimming control circuit is used to receive the dimming signal input by the LORA communication module and feed it back to the power control circuit, thereby changing the input voltage of the output filter circuit; The output end of the input filter circuit is connected to the first input end of the power control circuit, the output end of the power control circuit is connected to the input end of the output filter circuit, and the output end of the dimming control circuit is connected to the second input end of the power control circuit.

2. The intelligent dimming power supply with wireless communication according to claim 1, characterized in that: The power control circuit includes a chip U1 and a field effect transistor Q1. The model of the chip U1 is SY5882. Pin 8 of the chip U1 is connected to one end of a resistor R8A, and the other end of the resistor R8A is connected to the cathode of a diode ZD2, the third end of an optocoupler U02, and one end of a resistor R8. The anode of the diode ZD2 is grounded, and the fourth end of the optocoupler U02 is grounded. The other end of the resistor R8 is connected to the cathode of a diode D5B, and the anode of the diode D5B is connected to the anode of a diode D5A. The cathode of the diode D5A is connected to a power supply voltage VCC. Pin 5 of the chip U1 is connected to one end of a resistor R17 through a resistor R16, and the other end of the resistor R17 is connected to the G pole of the field effect transistor Q1. The S pole of the field effect transistor Q1 is grounded through a resistor RS0, and the D pole of the field effect transistor Q1 is connected to the first end of a transformer T1. The third end of the transformer T1 is connected to the output end of the input filter circuit through an inductor L1.

3. The intelligent dimming power supply with wireless communication according to claim 1, characterized in that: The dimming control circuit includes a chip U01, the model of the chip U01 is SY5867, the pin 5 of the chip U01 is connected to the output end of the LORA communication module, the pin 6 of the chip U01 is connected to the first end of the optocoupler U02, and the second end of the optocoupler U02 is grounded.

4. The intelligent dimming power supply with wireless communication according to claim 1, characterized in that: The power metering module includes chip U8. The model of chip U8 is HLW8032. The IP pin of chip U8 is connected to the neutral line ACN through resistors R41 and R38 in sequence. The IN pin of chip U8 is connected to the neutral line ACN through resistor R39. The VP pin of chip U8 is connected to the live line ACL through resistors R45, R44, R43, and R42 in sequence. The TX pin of chip U8 is connected to the second end of the optocoupler U6. The first end of the optocoupler U6 introduces a 5V voltage through resistor R37. The fourth end of the optocoupler U6 is grounded. The third end of the optocoupler U6 is connected to the second input end of the LORA communication module.

5. The intelligent dimming power supply with wireless communication according to any one of claims 1 to 4, characterized in that: The LORA communication module includes a communication chip P2. The model of the communication chip P2 is SX1278. Pins 7, 8, and 9 of the communication chip P2 are connected to the output end of the power metering module, and pins 4, 5, and 6 of the communication chip P2 are connected to the input end of the dimming module.

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