Subminiature intelligent gallium nitride LED driving power supply

Abstract

A subminiature intelligent gallium nitride LED driving power supply is characterized in that the LED driving power supply comprises an intelligent module and a wireless communication module; the intelligent module realizes LED wireless control through the wireless communication module; according to the utility model, the circuit topology is a boost circuit with a high power factor, the simplest circuit and the fewest and minimum components are obtained, so that the small size is realized, and the switching tube has the characteristics of small parasitic inductance, small parasitic capacitance, low driving charge, high switching speed and the like, so that the layout and the thermal design of a power supply product are facilitated; according to the utility model, the latest intelligent connection technology can be embedded to connect a wireless network and a cloud end, so that intelligent control, dimming and color modulation, remote upgrading and diagnosis are realized.

Description

Technical Field

[0001] The utility model discloses a driving power supply, belongs to the technical field of LED power supplies, and specifically relates to an ultra-small intelligent gallium nitride LED driving power supply. Background Art

[0002] The working principle of gallium nitride (GaN) power supply mainly involves the use of gallium nitride semiconductor materials in power electronics applications. Gallium nitride is a wide bandgap semiconductor material with high breakdown electric field, high saturated electron velocity, high thermal conductivity, high electron density and high mobility. These characteristics make gallium nitride advantageous in high-frequency, high-temperature and high-voltage applications. Gallium nitride (GaN) power supply is now also commonly used in LED power supply, but the traditional LED filament bulb is small in size, leaving very limited space for the driving power supply, which brings great challenges to the design. In addition, the power supply in the existing technology is large in size and has large switching losses and driving. Utility Model Content

[0003] Purpose of the utility model: to provide an ultra-small intelligent gallium nitride LED driver power supply to solve the above-mentioned problems.

[0004] Technical solution: An ultra-small intelligent gallium nitride LED driver power supply, including: an intelligent module and a wireless communication module;

[0005] The intelligent module realizes wireless control of LEDs through the wireless communication module.

[0006] In a further embodiment, the control module has an input voltage range of 120V-277V, an output voltage of 450V, an output current of 110mA, and a power of 50W.

[0007] In a further embodiment, the intelligent module includes: fuse FU1, rectifier bridge BD2, capacitor C10, resistor R20, diode D10, capacitor C11, resistor R21, resistor R22, polar capacitor CE2, capacitor C12, transformer TR1, controller U2, resistor R23, capacitor C13, GAN switch tube Q2, diode D13, resistor R24, resistor R25, resistor R26, polar capacitor CE3;

[0008] The positive input end of the rectifier bridge BD2 is connected to one end of the fuse FU1, the negative input end of the rectifier bridge BD2 and the other end of the fuse FU1 are connected to a power supply, the positive output end of the rectifier bridge BD2 is simultaneously connected to one end of the capacitor C10, one end of the resistor R20 and pin 1 of the transformer TR1, the negative output end of the rectifier bridge BD2 and the other end of the capacitor C10 are grounded, pin 2 of the controller U2 is simultaneously connected to one end of the resistor R22, pin 4 of the controller U2 is grounded, and the controller The pin 8 of the controller U2 is connected to the cathode of the diode D11, the anode of the polar capacitor CE2 and the other end of the resistor R20, the pin 1 of the controller U2 is connected to one end of the capacitor C12, the pin 2 of the transformer TR1 is connected to one end of the capacitor C11 and the other end of the resistor R22, the other end of the capacitor C11 is connected to the cathode of the diode D10 and one end of the resistor R21, the anode of the diode D10 is grounded, the anode of the diode D11 is connected to the other end of the resistor R21, and the cathode of the diode D10 is grounded. The negative electrode of the polarity capacitor CE2 and the other end of the capacitor C12 are grounded, the No. 3 pin of the transformer TR1 is grounded, the No. 5 pin of the controller U2 is connected to one end of the resistor R23, the No. 3 pin of the controller U2 is simultaneously connected to one end of the resistor R24 ​​and the drain of the GAN switch tube Q2, the No. 10 pin of the controller U2 is connected to the wireless communication module, the No. 9 pin of the controller U2 is connected to one end of the capacitor C13, and the No. 7 pin of the controller U2 is simultaneously connected to one end of the resistor R25. And one end of the resistor R26, the other end of the resistor R23 is connected to the gate of the GAN switch tube Q2, the other end of the resistor R24 ​​and the other end of the capacitor C13 are grounded, the other end of the resistor R26 is grounded, the source of the GAN switch tube Q2 is simultaneously connected to pin 4 of the transformer TR1 and the positive electrode of the diode D13, the other end of the resistor R25 is simultaneously connected to the negative electrode of the diode D13 and the positive electrode of the polarity capacitor CE3 and outputs voltage, and the negative electrode of the polarity capacitor CE3 is grounded and outputs voltage.

[0009] In a further embodiment, the model of the controller U2 is BP2619.

[0010] Beneficial effects: The circuit topology of the utility model is a high power factor boost circuit that achieves the simplest circuit, the fewest and smallest components, thereby achieving a small volume. The utility model uses a switch tube with small parasitic inductance, small parasitic capacitance, low drive charge, and fast switching speed. It is not only convenient for the layout and thermal design of the power supply product, but also can significantly reduce the switching loss and drive loss of the power supply product. The utility model can be embedded with the latest intelligent connection technology to connect to wireless networks and the cloud to achieve intelligent control, dimming and color adjustment, remote upgrades, and diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a non-dimming LED driving power supply circuit diagram of the utility model.

[0012] Figure 2 The utility model is an intelligent dimming circuit diagram. DETAILED DESCRIPTION

[0013] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0015] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0016] The utility model includes two technical solutions: non-dimming LED driving power supply and intelligent dimming driving power supply;

[0017] The non-dimming LED driver power control chip is KP1352, which has no pin for receiving dimming signals.

[0018] The intelligent dimming driver power supply includes a wireless communication module, and the control chip BP2619 has a PWM dimming pin to receive the dimming signal.

[0019] The following is a specific example based on the embodiments:

[0020] Embodiment 1:

[0021] An ultra-small intelligent gallium nitride LED driver power supply, comprising: a non-dimming LED driver power supply; the non-dimming LED driver power supply is connected to an LED lamp by a control module to realize LED control;

[0022] In one embodiment, Figure 1 As shown, the control module includes: a varistor RV1, a capacitor CX1, a rectifier bridge BD1, an inductor L1, a capacitor CX2, an inductor L2A, an inductor L2B, an inductor LR1, a capacitor CY1, a capacitor C3, a capacitor C3, a capacitor C4, a capacitor C1, a capacitor C6, a capacitor C5, a polarity capacitor CE1, a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a controller U1, and a GAN switch tube Q1;

[0023] One end of the varistor RV1, one end of the capacitor CX1 and the positive input end of the rectifier bridge BD1 are connected to the live wire, the other end of the varistor RV1 is connected to the other end of the capacitor CX1 and the negative input end of the rectifier bridge BD1 is connected to the neutral line, the positive output end of the rectifier bridge BR1 is connected to one end of the inductor L1, the other end of the inductor L1 is simultaneously connected to one end of the capacitor CX2, one end of the inductor L2A, the positive electrode of the diode D2, one end of the capacitor CY1 and pin 8 of the controller U1, the negative output end of the rectifier bridge BR1 is simultaneously connected to the other end of the capacitor CX2, one end of the resistor R7, one end of the resistor R6, one end of the resistor R9 and the The negative electrode of the polarity capacitor CE1 is connected, the No. 1 pin of the controller U1 is connected to one end of the capacitor C4 and one end of the resistor R8, the No. 2 pin of the controller U1 is connected to one end of the capacitor C2 and the negative electrode of the diode D4, the other end of the resistor R8 is connected to one end of the inductor L2B and one end of the capacitor C3, the negative electrode of the diode D3 is connected to the other end of the capacitor C3 and the positive electrode of the diode D4, the other end of the capacitor C2 is connected to the positive electrode of the diode D3, the other end of the inductor L2B and the other end of the capacitor C4 and grounded, the No. 5 pin of the controller U1 is connected to the other end of the resistor R7, and the No. 6 pin of the controller U1 is connected to the other end of the resistor R8. Pin 6 is connected to one end of the resistor R10, and pin 7 of the controller U1 is simultaneously connected to the other end of the resistor R6, the other end of the resistor R9, the drain of the GAN switch tube Q1, one end of the content C6, one end of the resistor R12, one end of the resistor R1 and one end of the resistor R2. One end of the resistor R12 is grounded, and the other end of the resistor R10 is simultaneously connected to one end of the resistor R11 and the cathode of the diode D5. The gate of the GAN switch tube Q1 is simultaneously connected to the other end of the resistor R11 and the anode of the diode D5. The source of the GAN switch tube Q1 is connected to one end of the inductor LR1 and the other end of the capacitor C6. The other end of 2A is simultaneously connected to one end of the capacitor C1, the other end of the inductor LR1 and the positive electrode of the diode D1, the other end of the capacitor C1 is connected to one end of the resistor R13, the cathode of the diode D1 is simultaneously connected to the other end of the resistor R13, one end of the resistor R4, the other end of the capacitor CY1, the cathode of the diode D2, the positive electrode of the polarity capacitor CE1 and one end of the capacitor C5 and connected to the positive electrode of the LED lamp, the other end of the resistor R4 is connected to one end of the resistor R5, the No. 4 pin of the controller U1 is simultaneously connected to the other end of the resistor R5 and the other end of the resistor R12, the No. 3 pin of the controller U1 is connected to one end of the resistor R3,The other end of the resistor R3 is simultaneously connected to the other end of the resistor R1, the other end of the resistor R2 and the other end of the capacitor C5 and is connected to the negative electrode of the LED lamp.

[0024] In one embodiment, Figure 1 As shown, the model of the controller U1 is KP1352.

[0025] Embodiment 2:

[0026] An ultra-small intelligent gallium nitride LED driving power supply comprises: an intelligent dimming driving power supply, wherein the intelligent dimming driving power supply is connected with an LED lamp by an intelligent module through a wireless communication module to realize wireless control of the LED.

[0027] In one embodiment, Figure 1 As shown, the intelligent module includes: fuse FU1, rectifier bridge BD2, capacitor C10, resistor R20, diode D10, capacitor C11, resistor R21, resistor R22, polar capacitor CE2, capacitor C12, transformer TR1, controller U2, resistor R23, capacitor C13, GAN switch tube Q2, diode D13, resistor R24, resistor R25, resistor R26, polar capacitor CE3;

[0028] The positive input end of the rectifier bridge BD2 is connected to one end of the fuse FU1, the negative input end of the rectifier bridge BD2 and the other end of the fuse FU1 are connected to a power supply, the positive output end of the rectifier bridge BD2 is simultaneously connected to one end of the capacitor C10, one end of the resistor R20 and pin 1 of the transformer TR1, the negative output end of the rectifier bridge BD2 and the other end of the capacitor C10 are grounded, pin 2 of the controller U2 is simultaneously connected to one end of the resistor R22, pin 4 of the controller U2 is grounded, and the controller The pin 8 of the controller U2 is connected to the cathode of the diode D11, the anode of the polar capacitor CE2 and the other end of the resistor R20, the pin 1 of the controller U2 is connected to one end of the capacitor C12, the pin 2 of the transformer TR1 is connected to one end of the capacitor C11 and the other end of the resistor R22, the other end of the capacitor C11 is connected to the cathode of the diode D10 and one end of the resistor R21, the anode of the diode D10 is grounded, the anode of the diode D11 is connected to the other end of the resistor R21, and the cathode of the diode D10 is grounded. The negative electrode of the polarity capacitor CE2 and the other end of the capacitor C12 are grounded, the No. 3 pin of the transformer TR1 is grounded, the No. 5 pin of the controller U2 is connected to one end of the resistor R23, the No. 3 pin of the controller U2 is simultaneously connected to one end of the resistor R24 ​​and the drain of the GAN switch tube Q2, the No. 10 pin of the controller U2 is connected to the wireless communication module, the No. 9 pin of the controller U2 is connected to one end of the capacitor C13, and the No. 7 pin of the controller U2 is simultaneously connected to one end of the resistor R25. And one end of the resistor R26, the other end of the resistor R23 is connected to the gate of the GAN switch tube Q2, the other end of the resistor R24 ​​and the other end of the capacitor C13 are grounded, the other end of the resistor R26 is grounded, the source of the GAN switch tube Q2 is simultaneously connected to pin 4 of the transformer TR1 and the positive electrode of the diode D13, the other end of the resistor R25 is simultaneously connected to the negative electrode of the diode D13 and the positive electrode of the polarity capacitor CE3 and outputs voltage, and the negative electrode of the polarity capacitor CE3 is grounded and outputs voltage.

[0029] In one embodiment, Figure 2 As shown, the model of the controller U2 is BP2619.

[0030] In one embodiment, Figure 1 and Figure 2 As shown, the input voltage range of this application is 120V-277V, the output voltage is 450V, the output current is 110mA, and the power is 50W.

[0031] The LED filament bulb lamp of the utility model is small in size, and the space left for the driving power supply is very limited, which brings great challenges to the design.

[0032] The development of gallium nitride technology has brought new solutions. GaN switch tubes have the following advantages:

[0033] It can work at ultra-high frequency 100kHz-10MHz, so the size of the required magnetic components is greatly reduced.

[0034] Small parasitic capacitance and low driving loss.

[0035] The on-resistance is also smaller than that of ordinary MOSFET, making the efficiency higher.

[0036] The use of GaN in power supplies can thus reduce power losses and cooling requirements, making already energy-efficient LED lighting even more environmentally friendly.

[0037] The high power factor boost circuit of the utility model obtains the simplest circuit and the least and smallest components, thereby realizing a small volume.

[0038] InnoGaN products used in switching tubes have the characteristics of small parasitic inductance, small parasitic capacitance, low driving charge, and fast switching speed. They not only facilitate the layout and thermal design of power products, but also significantly reduce the switching loss and driving loss of power products.

[0039] The control chip used is KP1352 from Biyiwei.

[0040] Wide input voltage 120-277V, output voltage 450V, output current 110mA, power 50W.

[0041] In addition, the utility model solution can embed the latest intelligent connection technology TuyaOS Matter module (TS24-U module) to connect to wireless networks and the cloud to achieve intelligent control, dimming and color adjustment, remote upgrades, diagnosis, etc., without high patent fees. Network technology that enables communication between smart home devices, mobile applications, and cloud services. Use BP2619 with Pin 10 to receive PWM dimming signals to achieve the purpose of intelligent dimming.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An ultra-small intelligent gallium nitride LED driver power supply, characterized in that: The LED driving power supply comprises: an intelligent module and a wireless communication module; The intelligent module realizes wireless control of LED through the wireless communication module; The intelligent module includes: fuse FU1, rectifier bridge BD2, capacitor C10, resistor R20, diode D10, capacitor C11, resistor R21, resistor R22, polar capacitor CE2, capacitor C12, transformer TR1, controller U2, resistor R23, capacitor C13, GAN switch tube Q2, diode D13, resistor R24, resistor R25, resistor R26, polar capacitor CE3; The positive input end of the rectifier bridge BD2 is connected to one end of the fuse FU1, the negative input end of the rectifier bridge BD2 and the other end of the fuse FU1 are connected to a power supply, the positive output end of the rectifier bridge BD2 is simultaneously connected to one end of the capacitor C10, one end of the resistor R20 and pin 1 of the transformer TR1, the negative output end of the rectifier bridge BD2 and the other end of the capacitor C10 are grounded, pin 2 of the controller U2 is simultaneously connected to one end of the resistor R22, pin 4 of the controller U2 is grounded, and the controller The pin 8 of the controller U2 is connected to the cathode of the diode D11, the anode of the polar capacitor CE2 and the other end of the resistor R20, the pin 1 of the controller U2 is connected to one end of the capacitor C12, the pin 2 of the transformer TR1 is connected to one end of the capacitor C11 and the other end of the resistor R22, the other end of the capacitor C11 is connected to the cathode of the diode D10 and one end of the resistor R21, the anode of the diode D10 is grounded, the anode of the diode D11 is connected to the other end of the resistor R21, and the cathode of the diode D10 is grounded. The negative electrode of the polarity capacitor CE2 and the other end of the capacitor C12 are grounded, the No. 3 pin of the transformer TR1 is grounded, the No. 5 pin of the controller U2 is connected to one end of the resistor R23, the No. 3 pin of the controller U2 is simultaneously connected to one end of the resistor R24 ​​and the drain of the GAN switch tube Q2, the No. 10 pin of the controller U2 is connected to the wireless communication module, the No. 9 pin of the controller U2 is connected to one end of the capacitor C13, and the No. 7 pin of the controller U2 is simultaneously connected to one end of the resistor R25. And one end of the resistor R26, the other end of the resistor R23 is connected to the gate of the GAN switch tube Q2, the other end of the resistor R24 ​​and the other end of the capacitor C13 are grounded, the other end of the resistor R26 is grounded, the source of the GAN switch tube Q2 is simultaneously connected to pin 4 of the transformer TR1 and the positive electrode of the diode D13, the other end of the resistor R25 is simultaneously connected to the negative electrode of the diode D13 and the positive electrode of the polarity capacitor CE3 and outputs voltage, and the negative electrode of the polarity capacitor CE3 is grounded and outputs voltage.

2. According to claim 1, an ultra-small intelligent gallium nitride LED driving power supply is characterized in that: The input voltage range is 120V-277V, the output voltage is 450V, the output current is 110mA, and the power is 50W.

3. According to claim 1, an ultra-small intelligent gallium nitride LED driving power supply is characterized in that: The model of the controller U2 is BP2619.

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