LED component and LED system

Abstract

The present invention discloses an LED component and an LED system, comprising: two input pins, the input pins being connected to an external LED controller to obtain a coupling signal; a separation module, the input end of the separation module being connected to the two input pins, the separation module being used to separate and convert the coupling signal into a power supply signal and a control signal; a control drive module, the output end of the separation module being connected to the control drive module; and an LED module, the control drive module being connected to the LED module to drive and control the operation of the LED module. The separation module processes the coupling signal and converts it into a power supply signal and a control signal. The power supply signal is transmitted to the control drive module to provide electrical energy, and the control signal is transmitted to the control drive module. The control drive module drives the LED module to operate according to the control signal, thereby controlling the LED module to turn on and off, adjust the brightness, and adjust the luminous color. This allows the LED component to obtain electrical energy and control lighting with only two input pins.

Description

Technical Field

[0001] The present invention relates to the field of lighting components, and in particular to an LED component and an LED system. Background Art

[0002] As a new generation of light source device, LED (light emitting diode) has the advantages of high luminous efficiency and energy saving. It has gradually replaced traditional light sources such as fluorescent lamps and neon lamps, and is widely used in regional lighting, advertising decoration and other fields.

[0003] In the prior art, LEDs are often packaged together with other components to form LED components for ease of use. This allows for more stable operation and enhanced functionality, such as adjusting brightness and changing light color based on input signals. Existing LED components typically have three or more pins, two of which are power supply pins, and one or more of which are function control pins. However, LED components with three or more pins are prone to wiring errors when multiple LED components are connected in series or parallel, making them cumbersome and unsuitable for practical use. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an LED component and an LED system, wherein the LED component has only two input pins, and the LED component can simultaneously obtain a power signal and a control signal through the two input pins.

[0005] According to an embodiment of the first aspect of the present invention, an LED component includes: two input pins, the input pins are used to connect to an external LED controller to obtain a coupling signal; a separation module, the input end of the separation module is connected to the two input pins, the separation module is used to separate the coupling signal and convert it into a power supply signal and a control signal; a control drive module, the output end of the separation module is connected to the control drive module; and an LED module, the control drive module is connected to the LED module to drive and control the operation of the LED module.

[0006] An LED component according to an embodiment of the present invention has at least the following beneficial effects: two input pins are connected to an external LED controller to obtain a coupling signal, a separation module is connected to the input pins to obtain the coupling signal, and then the separation module processes the coupling signal and converts it into a power supply signal and a control signal. The power supply signal is transmitted to the control drive module to provide power, and the control signal is transmitted to the control drive module. The control drive module drives the LED module according to the control signal to achieve the effects of controlling the LED module to turn on and off, adjust the brightness, and adjust the color of the light. In this way, the LED component, with only two input pins, can achieve the functions of obtaining power and controlling lighting. At the same time, it is more convenient to connect multiple LED components in series and parallel during use, meeting the needs of users.

[0007] According to some embodiments of the present invention, an address unit is further included, wherein the address unit stores an address identification code, and the address unit is connected to the control and driving module.

[0008] According to some embodiments of the present invention, the separation module includes a power supply unit and a detection and amplification unit, the input end of the power supply unit is respectively connected to the two input pins to convert the coupling signal into a power supply signal, the power supply unit supplies power to the detection and amplification unit, the address unit and the control and driving module, the input end of the detection and amplification unit is connected to at least one of the input pins to convert the coupling signal into a control signal, and the output end of the detection and amplification unit is connected to the control and driving module.

[0009] According to some embodiments of the present invention, the power supply unit includes a rectifier and filter circuit and a voltage regulating circuit, the input end of the rectifier and filter circuit is respectively connected to the two input pins, the output end of the rectifier and filter circuit is connected to the input end of the voltage regulating circuit, and the output end of the voltage regulating circuit supplies power to the detection and amplification unit, the address unit and the control and driving module respectively.

[0010] According to some embodiments of the present invention, the separation module further includes a shaping unit, the input end of the shaping unit is connected to the output end of the detection and amplification unit, the output end of the shaping unit is connected to the control and driving module, and the power supply unit supplies power to the shaping unit.

[0011] According to some embodiments of the present invention, the control and driving module includes a first control processing unit and a driving unit, the output end of the detection and amplification unit is connected to the first control processing unit, the address unit is connected to the first control processing unit, the first control processing unit is connected to the driving unit, the output end of the driving unit is connected to the LED module, and the power supply unit supplies power to the first control processing unit and the driving unit.

[0012] According to some embodiments of the present invention, the control driving module further includes an oscillation unit, the oscillation unit is used to generate a clock signal, the power supply unit supplies power to the oscillation unit, and the oscillation unit is connected to the first control processing unit.

[0013] According to some embodiments of the present invention, the control drive module further includes a polarity detection unit, an input end of the polarity detection unit is connected to at least one of the input pins, an output end of the polarity detection unit is connected to the first control processing unit, and the power supply unit supplies power to the polarity detection unit.

[0014] According to some embodiments of the present invention, the driving unit includes a PWM circuit and a constant current regulation circuit, the first control processing unit is connected to the input end of the PWM circuit, the output end of the PWM circuit is connected to the constant current regulation circuit, and the constant current regulation circuit is connected to the LED module.

[0015] According to the second aspect of the present invention, the LED system includes a plurality of the aforementioned LED elements and an LED controller. The plurality of the aforementioned LED elements are connected in series and / or in parallel to form an LED circuit, and the LED controller is connected to the LED circuit.

[0016] The LED system according to embodiments of the present invention has at least the following beneficial effects: an LED controller couples a power signal with a control signal to form a coupled signal, which is transmitted to an LED circuit. Within the LED components of the LED circuit, a separation module processes the coupled signal to obtain a power signal and a control signal. The control driver module operates normally with the power signal, and the control driver module drives the LED module to perform functions such as turning it on and off, adjusting its brightness, and adjusting its light color according to the control signal. The LED components have only two input pins, the minimum number required to form a circuit with the LED controller. When connecting the LED components in series or parallel, the connection structure is simple, which helps avoid connection errors, is convenient, and meets user requirements.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0019] Figure 1 This is a circuit block diagram of an LED element according to one embodiment of the present invention;

[0020] Figure 2This is a circuit diagram of an LED controller according to one embodiment of the present invention.

[0021] Figure 3 is a waveform diagram of the coupling signal;

[0022] Figure 4 Schematic diagram of the waveform of the power supply signal;

[0023] Figure 5 Schematic diagram of the waveform of the control signal. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] like Figure 1 As shown, an LED component according to an embodiment of the present invention includes: two input pins 110, the input pins 110 are used to connect to an external LED controller to obtain a coupling signal; a separation module 200, the input end of the separation module 200 is connected to the two input pins 110, and the separation module 200 is used to separate and convert the coupling signal into a power supply signal and a control signal; a control drive module 300, the output end of the separation module 200 is connected to the control drive module 300; and an LED module 400, the control drive module 300 is connected to the LED module 400 to drive and control the LED module 400 to operate.

[0029] Two input pins 110 are connected to an external LED controller to obtain coupling signals. Separation module 200 is connected to input pins 110 to obtain coupling signals. Separation module 200 then processes the coupling signals and converts them into power and control signals. The power signals are transmitted to control and drive module 300 to provide electrical energy, while the control signals are transmitted to control and drive module 300. Control and drive module 300 operates LED module 400 based on the control signals, thereby controlling the LED module 400 to turn on and off, adjust brightness, and adjust the color of light. This allows the LED element to obtain power and control lighting using only two input pins 110. This also makes it easier to connect multiple LED elements in series or parallel during use, meeting practical requirements.

[0030] refer to Figures 3 to 5 The external LED controller couples and modulates the power supply signal and the control signal to form a coupled signal, and the coupled signal is transmitted to the separation module 200 through the input pin 110. The separation module 200 can separate and demodulate the coupled signal to form a power supply signal and a control signal.

[0031] The LED module 400 may include multiple LED lamp beads or LED chips, and the control and driving module 300 changes the output current according to the control signal to achieve the effect of changing the brightness of the LED light-emitting components. The light-emitting colors of the LED light-emitting components can be different, so that the control and driving module 300 can achieve the effect of changing the light color by driving different LED light-emitting components. The LED module 400 preferably includes red, green, blue, and white LED light-emitting components.

[0032] Reference Figure 1 In some embodiments of the present invention, an address unit 500 is further included. The address unit 500 stores an address identification code and is connected to the control and driving module 300 .

[0033] When multiple LED strings are used in parallel, the LED components all receive the same electrical signal. To control a specific LED component, an address unit 500 is connected to the control and driver module 300. The control signal contains address data. After receiving the control signal, the control and driver module 300 obtains an address identification code from the address unit 500 and compares it with the address data in the control signal. If they match, the control and driver module 300 executes the action corresponding to the control signal; if they do not match, the control signal is ignored. This allows for control of a specific LED component when multiple LED strings are used in parallel. The address unit 500 can be a device capable of storing address identification codes, such as a read-only memory or an erasable programmable read-only memory.

[0034] Reference Figure 1 and Figures 3 to 5 In some embodiments of the present invention, the separation module 200 includes a power supply unit 210 and a detection and amplification unit 220. The input end of the power supply unit 210 is respectively connected to the two input pins 110 to convert the coupling signal into a power supply signal. The power supply unit 210 supplies power to the detection and amplification unit 220, the address unit 500, and the control and driving module 300. The input end of the detection and amplification unit 220 is connected to at least one input pin 110 to convert the coupling signal into a control signal. The output end of the detection and amplification unit 220 is connected to the control and driving module 300.

[0035] The power supply unit 210 obtains the coupling signal through the input pin 110, processes the coupling signal to obtain the power supply signal, and then powers the detection and amplification unit 220, the address unit 500, and the control and drive module 300, so that the three can operate normally. The detection and amplification unit 220 obtains the coupling signal through the input pin 110, and then performs detection and amplification processing on the coupling signal to obtain the control signal and transmit it to the control and drive module 300. The detection and amplification unit 220 can be an implementation method including a common detection circuit and a common amplification circuit. The coupled signal is detected by the detection circuit to obtain the control signal. The structure is simple and easy to implement. The control signal is amplified by the amplification circuit, which is conducive to the control and drive module 300 to identify the control signal.

[0036] Reference Figure 1 and Figures 3 to 5 In some embodiments of the present invention, the power supply unit 210 includes a rectifier and filter circuit 211 and a voltage regulator circuit 212. The input end of the rectifier and filter circuit 211 is respectively connected to the two input pins 110, and the output end of the rectifier and filter circuit 211 is connected to the input end of the voltage regulator circuit 212. The output end of the voltage regulator circuit 212 supplies power to the detection and amplification unit 220, the address unit 500, and the control and driving module 300 respectively.

[0037] The input electrical signal is rectified by the rectifier and filter circuit 211 to form a DC signal. The DC signal is then processed by the voltage regulator circuit 212 to form a power supply signal with an appropriate voltage, which in turn powers the detection and amplification unit 220, the address unit 500, and the control and drive module 300. The rectifier and filter circuit 211 can be implemented by a conventional rectifier bridge, a filter, and a voltage regulator to convert the AC signal into a stable DC signal. The voltage regulator circuit 212 can be implemented by a conventional buck circuit or boost circuit.

[0038] When the LED module 400 is not emitting light, the voltage regulation circuit 212 will also maintain the entire LED element consuming a certain power, such as maintaining power supply to the detection amplifier unit 220, the address unit 500, and the control driver module 300. Therefore, regardless of whether the LED module 400 is emitting light, the entire LED element will consume a certain power with a small fluctuation. When multiple LED elements are used in series, it can avoid the situation where the LED module 400 of a certain LED element does not emit light, which will cause the voltage and current of other LED elements in the series to increase significantly. This is beneficial for ensuring stable operation of each LED element when used in series, and improving reliability.

[0039] Reference Figure 1 In some embodiments of the present invention, the separation module 200 further includes a shaping unit 230, the input end of the shaping unit 230 is connected to the output end of the detection and amplification unit 220, the output end of the shaping unit 230 is connected to the control and driving module 300, and the power supply unit 210 supplies power to the shaping unit 230.

[0040] During the transmission of the coupled signal generated by the external LED controller to the LED element, the coupled signal may be distorted due to interference or other factors, causing the control signal obtained by the detection and amplification unit 220 to be distorted. Therefore, a shaping unit 230 is connected to the output end of the detection and amplification unit 220 to shape and restore the control signal so that the control and driving module 300 can correctly identify the control signal. The shaping unit 230 can be a common shaping circuit including several Schmitt triggers.

[0041] Reference Figure 1 In some embodiments of the present invention, the control and driving module 300 includes a first control processing unit 310 and a driving unit 320, the output end of the detection and amplification unit 220 is connected to the first control processing unit 310, the address unit 500 is connected to the first control processing unit 310, the first control processing unit 310 is connected to the driving unit 320, the output end of the driving unit 320 is connected to the LED module 400, and the power supply unit 210 supplies power to the first control processing unit 310 and the driving unit 320.

[0042] The detection and amplification unit 220 transmits the control signal to the first control processing unit 310. Based on the control signal, the first control processing unit 310 controls the driver unit 320 to generate a desired drive signal, which is then transmitted to the LED module 400, ensuring that the LED module 400's lighting operation meets the desired requirements. The first control processing unit 310 can be a processor, single-chip microcomputer, or other device or chip capable of receiving, processing, and generating signals. The driver unit 320 can be implemented as a conventional LED driver circuit or LED driver chip.

[0043] Reference Figure 1 In some embodiments of the present invention, the control driving module 300 further includes an oscillation unit 330 , which is used to generate a clock signal. The power supply unit 210 supplies power to the oscillation unit 330 , and the oscillation unit 330 is connected to the first control processing unit 310 .

[0044] Because the first control processing unit 310 relies on an accurate clock signal to recognize the control signal, the oscillation unit 330 generates a precise clock signal and transmits it to the first control processing unit 310. This helps the first control processing unit 310 accurately control the operation of the driving unit 320 according to the control signal, thereby driving the LED module 400 to perform the action corresponding to the control signal. The oscillation unit 330 can be a device or circuit capable of generating a clock signal, such as a common clock oscillator.

[0045] Reference Figure 1 In some embodiments of the present invention, the control driving module 300 further includes a polarity detection unit 340, an input end of the polarity detection unit 340 is connected to at least one input pin 110, an output end of the polarity detection unit 340 is connected to the first control processing unit 310, and the power supply unit 210 supplies power to the polarity detection unit 340.

[0046] Because the coupled signal is an AC signal, the control signal formed after the detection and amplification unit 220 processes the coupled signal may include a positive half-cycle and / or a negative half-cycle, resulting in the first control processing unit 310 incorrectly identifying the control signal. To address this, the polarity detection unit 340 is connected to the input pin. The first control processing unit 310 detects whether the coupled signal is currently in a positive half-cycle or a negative half-cycle through the polarity detection unit 340, and correctly identifies the control signal based on the detection result, allowing the first control processing unit 310 to correctly identify the control signal. The polarity detection unit 340 can be a common voltage detection circuit or other implementation, which determines whether the AC signal is in a positive half-cycle or a negative half-cycle by detecting the voltage. The polarity detection unit 340 can also include a diode that uses the unidirectional conduction characteristics of the diode to generate a trigger signal to determine whether the AC signal is in a positive half-cycle or a negative half-cycle.

[0047] Reference Figure 1 In some embodiments of the present invention, the driving unit 320 includes a PWM circuit 321 and a constant current regulation circuit 322, the first control processing unit 310 is connected to the input end of the PWM circuit 321, the output end of the PWM circuit 321 is connected to the constant current regulation circuit 322, and the constant current regulation circuit 322 is connected to the LED module 400.

[0048] The first control processing unit 310 controls the PWM circuit 321 based on the control signal to generate a PWM signal, which is then transmitted to the constant current regulation circuit 322. The constant current regulation circuit 322 generates a stable current based on the PWM signal to drive the LED module 400. The first control processing unit 310 controls the PWM circuit 321 based on the control signal to adjust the duty cycle of the PWM signal. This can control the magnitude of the stable current generated by the constant current regulation circuit 322, thereby enabling the LED module 400 to be turned on or off, and to adjust the brightness or color of the light.

[0049] The LED system according to the second embodiment of the present invention includes a plurality of the above-mentioned LED elements and an LED controller. The plurality of LED elements are connected in series and / or in parallel to form an LED circuit, and the LED controller is connected to the LED circuit.

[0050] In order to meet the requirements of use, it is generally necessary to connect multiple LED elements in series and parallel to form an LED circuit. The LED controller couples the power signal and the control signal to form a coupled signal and transmits it to the LED circuit. In the LED element of the LED circuit, the separation module 200 processes the coupled signal to obtain the power signal and the control signal. The control drive module 300 operates normally with the support of the power signal, and the control drive module 300 drives the LED module 400 to realize functions such as turning on and off, adjusting the brightness, and adjusting the light color according to the control signal. The LED element has only two input pins 110, which are the minimum number required to form a loop with the LED controller. When the LED elements are connected in series and parallel, the connection structure is simple, which helps to avoid connection errors, is convenient to use, and meets the requirements of use.

[0051] like Figures 2 to 5 As shown, as an LED controller in an embodiment of the present invention, it includes: a control signal module 600, the control signal module 600 is used to generate a control signal or receive a control signal from the outside; a power conversion module 700, the power conversion module 700 can be connected to an external power supply line to generate a power supply signal; a coupling module 800, the coupling module 800 is respectively connected to the control signal module 600 and the power supply to couple the control signal with the power supply signal; two output ports 120, the output port 120 can be connected to an external LED circuit, and the output end of the coupling module 800 is respectively connected to the two output ports 120.

[0052] The control signal module 600 transmits the control signal to the coupling module 800. The power conversion module 700 is connected to the external power supply line to convert the external AC power into a power supply signal suitable for the operation of the external LED circuit and transmit it to the coupling module 800. The coupling module 800 couples the control signal and the power supply signal to form a coupled signal. The coupling module 800 transmits the coupled signal to the external LED circuit through the two output ports 120. The coupled signal includes a power supply signal part and a control signal part, thereby realizing the function of powering and controlling the external circuit through the two output ports 120, making it more convenient to use and meeting usage requirements.

[0053] The two output ports 120 refer to ports at the circuit level, that is, at least two connection ends required to connect to the external LED circuit to form a loop. In actual applications, there may be only one physical port. For example, the 3.5mm headphone interface has only one port at the physical level, but has two connection ends at the circuit level so that the headphones can form a loop with the driving circuit in the interface.

[0054] Reference Figure 2 In some embodiments of the present invention, a control and display unit 900 is further included. The control and display unit 900 is connected to the control signal module 600 and the power conversion module 700 respectively.

[0055] The control and display unit 900 obtains power from the power conversion module 700. The user can generate a control signal through the control and display unit 900 and transmit it to the control signal module 600, so that the control signal module 600 generates an appropriate control signal. In addition, the control and display unit 900 can also display the current working information of the control signal module 600 so that the user can understand the working status, thereby achieving the effect of human-computer interaction and making it more convenient to use. The control and display unit 900 can be implemented in an embodiment that includes a keyboard, a display screen, or a touch screen, etc., which can be controlled and displayed.

[0056] Reference Figure 2 In some embodiments of the present invention, the control signal module 600 includes a second control processing unit 610 , the second control processing unit 610 is connected to the coupling module 800 , and the control display unit 900 is connected to the second control processing unit 610 .

[0057] The control display unit 900 generates a control signal and transmits it to the second control processing unit 610. The second control processing unit 610 generates a corresponding control signal based on the control signal and transmits the control signal to the coupling module 800 for coupling processing. The second control processing unit 610 can be implemented as a device or chip such as a processor or single-chip microcomputer that can receive, process, and generate signals.

[0058] Reference Figure 2In some embodiments of the present invention, the control signal module 600 further includes a signal exchange unit 620 , which is used to obtain an external control signal or send a control signal, and the second control processing unit 610 is connected to the signal exchange unit 620 .

[0059] In some cases, the control signal may come from an external device. The signal exchange unit 620 is provided to obtain the external control signal and transmit it to the second control processing unit 610. The second control processing unit 610 adjusts the control signal according to the control signal. The second control processing unit 610 may also not process the control signal. The second control processing unit 610 transmits the control signal to the coupling module 800 for coupling processing.

[0060] In some cases, the control signal generated by the second control processing unit 610 needs to be transmitted to an external controller or external device. For example, when multiple controllers are used simultaneously, the control signal generated by the second control processing unit 610 is transmitted to the external controller via the signal exchange unit 620, so that the other external controllers receive the control signal as slave controllers. The second control processing unit 610 in the slave controller receives the control signal via the signal exchange unit 620, and then the second control processing unit 610 performs the corresponding processing.

[0061] The signal exchange unit 620 may include a signal port to obtain or send control signals through a wired connection; the signal exchange unit 620 may also be a Bluetooth chip, a WIFI chip, an infrared receiver or other device to obtain or send control signals wirelessly.

[0062] Reference Figure 2 In some embodiments of the present invention, the coupling module 800 includes an H-bridge conversion unit 810, an input end of the H-bridge conversion unit 810 is connected to the power conversion module 700, an output end of the H-bridge conversion unit 810 is respectively connected to the two output ports 120, and the second control processing unit 610 is connected to the control end of the H-bridge conversion unit 810.

[0063] The input end of the H-bridge conversion unit 810 is connected to the power conversion module 700 to obtain a power supply signal. The second control processing unit 610 transmits the control signal to the control end of the H-bridge conversion unit 810. The H-bridge conversion unit 810 couples the power supply signal and the control signal to form a coupled signal and transmits it to the output port 120.

[0064] As one of the specific embodiments, refer to Figure 2For convenience of description, the two output ports 120 are respectively referred to as the first output port and the second output port. The H-bridge conversion unit 810 includes switch transistors A, B, C, and D. The input end of switch transistor A is connected to the power conversion module 700, and the output end of switch transistor A is respectively connected to the input end of switch transistor B and the first output port. The output end of switch transistor B is grounded. The input end of switch transistor C is connected to the power conversion module 700, and the output end of switch transistor C is respectively connected to the input end of switch transistor D and the second output port. The output end of switch transistor D is grounded. The second control processing unit 610 is respectively connected to the control end of switch transistor A, the control end of switch transistor B, the control end of switch transistor C, and the control end of switch transistor D.

[0065] refer to Figures 3 to 5 During operation, when the control signal is high, the second control processing unit 610 controls switch A to be turned on and switch B to be turned off, while simultaneously controlling switch C to be turned off and switch D to be turned on, so that the voltage at the first output port is higher than the voltage at the second output port. When the control signal is low, the second control processing unit 610 controls switch A to be turned off and switch B to be turned on, while simultaneously controlling switch C to be turned on and switch D to be turned off, so that the voltage at the second output port is higher than the voltage at the first output port. In this way, based on the condition that the power conversion module 700 inputs a power signal, an AC signal corresponding to the control signal is generated, that is, the power signal and the control signal are coupled to form a coupled signal.

[0066] The coupling method using the H-bridge conversion unit 810 generates an AC signal, which can ensure more stable LED operation and avoid voltage fluctuations caused by the control signal in DC carrier technology, thus preventing flickering during operation of the LED module. The switching transistors included in the H-bridge conversion unit 810 can be transistors, field-effect transistors, or IGBTs.

[0067] Reference Figure 2 In some embodiments of the present invention, the coupling module 800 further includes a driving unit 820, an input end of the driving unit 820 is connected to the power conversion module 700, an output end of the driving unit 820 is connected to the control end of the H-bridge conversion unit 810, and the second control processing unit 610 is connected to the control end of the driving unit 820.

[0068] Since the switches in the H-bridge conversion unit 810 may use devices such as field-effect transistors, a certain driving capability is required to turn on the switches. Therefore, by providing a driving unit 820, the control signal output by the second control processing unit 610 is processed by the driving unit 820 to improve the driving capability, thereby ensuring that the control signal can turn on the switches in the H-bridge conversion unit 810. The driving unit 820 can be a circuit or device capable of improving signal driving capability, such as a common power amplifier circuit.

[0069] Reference Figure 2 In some embodiments of the present invention, the power conversion module 700 includes a rectifier and voltage regulator unit 710 , the input end of the rectifier and voltage regulator unit 710 can be connected to an external power supply line, and the output end of the rectifier and voltage regulator unit 710 is connected to the coupling module 800 .

[0070] The input mains power is rectified and stabilized by the rectifier and voltage regulator unit 710 to convert the mains power into stable DC power, i.e., the power supply signal is transmitted to the coupling module 800. The rectifier and voltage regulator unit 710 can be a common embodiment including a rectifier bridge and a voltage regulator circuit.

[0071] Reference Figure 2 In some embodiments of the present invention, the power conversion module 700 further includes a filter unit 720 , the input end of the filter unit 720 can be connected to an external power supply line, and the output end of the filter unit 720 is connected to the input end of the rectifier and voltage regulator unit 710 .

[0072] Since the AC power contains interference harmonics due to interference and other reasons during transmission, the interference harmonics may impact the rectifier and voltage stabilization unit 710, affecting the stable operation of the rectifier and voltage stabilization unit 710. Therefore, by providing a filter unit 720 to filter the input AC power to remove the interference harmonics before transmitting it to the rectifier and voltage stabilization unit 710, it is beneficial to the stable operation of the rectifier and voltage stabilization unit 710 and improve reliability.

[0073] Reference Figure 2 In some embodiments of the present invention, the power conversion module 700 further includes a step-down unit 730 , which is connected to the rectifier and filter unit 720 , and supplies power to the control signal module 600 and the control and display unit 900 .

[0074] The DC power output by the rectifier and voltage regulator unit 710, i.e., the power supply signal, is stepped down by the step-down unit 730 to power the second control processing unit 610, the drive unit 820, and the control and display unit 900 in the signal module, fully utilizing the performance of the rectifier and voltage regulator unit 710. The step-down unit 730 can be implemented in a conventional step-down circuit or a switching power supply circuit.

[0075] Of course, the invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An LED element, characterized in that: include: Two input pins (110), the input pins (110) being used to connect to an external LED controller to obtain a coupling signal; A separation module (200), wherein an input end of the separation module (200) is connected to the two input pins (110), and the separation module (200) is used to separate and convert the coupled signal into a power supply signal and a control signal; A control driving module (300), the output end of the separation module (200) being connected to the control driving module (300); LED module (400), the control driving module (300) is connected to the LED module (400) to drive and control the LED module (400) to operate; An address unit (500), wherein the address unit (500) stores an address identification code, and the address unit (500) is connected to the control and driving module (300); The separation module (200) comprises a power supply unit (210) and a detection and amplification unit (220); the input end of the power supply unit (210) is respectively connected to the two input pins (110) to convert the coupling signal into a power supply signal; the power supply unit (210) supplies power to the detection and amplification unit (220), the address unit (500) and the control and drive module (300); the input end of the detection and amplification unit (220) is connected to at least one input pin (110) to convert the coupling signal into a control signal; and the output end of the detection and amplification unit (220) is connected to the control and drive module (300); The power supply unit (210) comprises a rectifier filter circuit (211) and a voltage regulator circuit (212); the input end of the rectifier filter circuit (211) is respectively connected to the two input pins (110); the output end of the rectifier filter circuit (211) is connected to the input end of the voltage regulator circuit (212); and the output end of the voltage regulator circuit (212) supplies power to the detection amplifier unit (220), the address unit (500), and the control drive module (300); The separation module (200) further comprises a shaping unit (230), the input end of the shaping unit (230) being connected to the output end of the detection and amplification unit (220), the output end of the shaping unit (230) being connected to the control and driving module (300), and the power supply unit (210) supplying power to the shaping unit (230); When multiple LED elements are used in series, when the LED module (400) of any one LED element does not emit light, the voltage regulating circuit (212) of the LED element continues to supply power to the detection amplifier unit (220), the address unit (500) and the control drive module (300), and the LED element still consumes a certain amount of power to avoid an increase in the voltage and current of other LED elements.

2. The LED component according to claim 1, wherein: The control and driving module (300) comprises a first control processing unit (310) and a driving unit (320); the output end of the detection and amplification unit (220) is connected to the first control processing unit (310); the address unit (500) is connected to the first control processing unit (310); the first control processing unit (310) is connected to the driving unit (320); the output end of the driving unit (320) is connected to the LED module (400); and the power supply unit (210) supplies power to the first control processing unit (310) and the driving unit (320).

3. The LED component according to claim 2, wherein: The control driving module (300) further includes an oscillation unit (330), wherein the oscillation unit (330) is used to generate a clock signal, the power supply unit (210) supplies power to the oscillation unit (330), and the oscillation unit (330) is connected to the first control processing unit (310).

4. The LED component according to claim 2, wherein: The control drive module (300) further comprises a polarity detection unit (340), an input end of the polarity detection unit (340) being connected to at least one of the input pins (110), an output end of the polarity detection unit (340) being connected to the first control processing unit (310), and the power supply unit (210) supplying power to the polarity detection unit (340).

5. The LED component according to claim 2, characterized in that: The driving unit (320) comprises a PWM circuit (321) and a constant current regulation circuit (322); the first control processing unit (310) is connected to the input end of the PWM circuit (321); the output end of the PWM circuit (321) is connected to the constant current regulation circuit (322); and the constant current regulation circuit (322) is connected to the LED module (400). 6.LED system, characterized by: The method comprises a plurality of LED elements according to any one of claims 1 to 5, and also comprises an LED controller, wherein the plurality of LED elements are connected in series and / or in parallel to form an LED circuit, and the LED controller is connected to the LED circuit.

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