Gallium nitride rapid charger and rapid charging adjusting method

Abstract

The invention relates to the technical field of chargers, in particular to a gallium nitride rapid charger and a rapid charging adjusting method.The gallium nitride rapid charger comprises a main circuit and a protocol optimization assembly which are electrically connected, the main circuit comprises a primary side circuit and an output assembly which are electrically connected, and the protocol optimization assembly comprises a communication module and an AI chip; the communication module is electrically connected with the primary side circuit and the output assembly, and the communication module is used for obtaining charging parameters of the terminal to be charged and output parameters of the main circuit and realizing data interaction; the AI chip is electrically connected with the communication module and used for receiving the charging parameters and the output parameters, running a preset AI algorithm to generate a dynamic charging strategy and sending a control instruction to the main circuit through the communication module so as to adjust the output voltage or current of the main circuit. And the to-be-charged terminal is quickly charged.

Description

Technical Field

[0001] The present invention relates to the technical field of chargers, and in particular to a gallium nitride fast charger and a fast charging adjustment method. Background Art

[0002] In recent years, gallium nitride (GaN) has demonstrated higher electron mobility and breakdown electric field strength. Using GaN materials in power devices within chargers enables higher switching frequencies and lower on-resistance. This means the charger can transfer more energy in a shorter time, improving charging efficiency while reducing energy loss and heat generation. Fast charging requires a technical mechanism that uses a specific communication protocol between the electronic device (such as a mobile phone, tablet, or laptop) and the charger to negotiate and control the charging process. This core mechanism achieves dynamic matching of voltage, current, and power through the protocol. However, existing GaN fast chargers use a fixed charging protocol, which prevents fast charging when the device being charged is incompatible with the charger. Summary of the Invention

[0003] The object of the present invention is to provide a gallium nitride fast charger and a fast charging adjustment method to solve the problem in the prior art that the charging protocol of gallium nitride fast chargers is fixed, resulting in the inability to perform fast charging when the terminal to be charged is not compatible with the charger.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A gallium nitride fast charger includes an electrically connected main circuit and a protocol optimization component. The main circuit includes an electrically connected primary-side circuit and an output component for charging a terminal to be charged. The protocol optimization component includes a communication module and an AI chip. The communication module is electrically connected to the primary-side circuit and the output component, respectively. The communication module is used to obtain charging parameters of the terminal to be charged and output parameters of the main circuit, and to implement data exchange. The AI ​​chip is electrically connected to the communication module, and is used to receive charging parameters and output parameters, run a preset AI algorithm to generate a dynamic charging strategy, and send control instructions to the main circuit through the communication module to adjust its output voltage or current.

[0005] A further technical solution is that the primary side circuit includes an access port, an EMI filter circuit, a rectifier bridge and a power factor correction circuit which are electrically connected in sequence.

[0006] A further technical solution is that the rectifier bridge is a silicon bridge or a gallium nitride bridge; and the power factor correction circuit includes a GaN device.

[0007] A further technical solution is that the output component includes a DC-DC conversion circuit, a secondary-side rectification and filtering circuit, a protection circuit, a control circuit, and an output port that are electrically connected in sequence.

[0008] A further technical solution is that the DC-DC conversion circuit includes a gallium nitride switching tube and a transformer. The gallium nitride switching tube is used as a high-frequency switch in conjunction with the transformer to realize the conversion of high-voltage direct current to low-voltage direct current.

[0009] A further technical solution is that the control circuit includes a PWM controller, which is used to adjust the duty cycle of the gallium nitride switch tube to achieve voltage regulation.

[0010] A further technical solution is that the secondary-side rectification and filtering circuit includes a synchronous rectification module and an output filtering module. The synchronous rectification module uses MOSFET to rectify the high-frequency AC power output by the secondary coil of the transformer in the DC-DC conversion circuit into DC power; the output filtering module is an LC filter composed of inductors and capacitors.

[0011] A further technical solution is that the output port includes any combination of one or more of the following: USB-C interface, USB-A interface.

[0012] A further technical solution is that the communication module is a module that supports Wi-Fi and Bluetooth low energy dual-mode communication.

[0013] A fast charging adjustment method for a gallium nitride charger comprises the following steps: S1: The communication module establishes communication with the terminal to be charged and the main circuit respectively, obtains the charging parameters of the terminal to be charged and the output parameters of the main circuit, and transmits them to the AI ​​chip; S2: The AI ​​chip runs the preset AI algorithm, generates an initial charging strategy based on the information obtained during the initialization phase, and sends a startup command to the main circuit through the communication module. S3: The communication module collects real-time voltage, current, and temperature data during the charging process and updates the AI ​​chip at regular intervals. The AI ​​chip optimizes the charging strategy based on this real-time data, generates adjustment instructions, and feeds them back to the main circuit via the communication module to dynamically adjust its output voltage or current. S4: When the power level of the terminal to be charged reaches 100% or the AI ​​chip detects an abnormal state, the AI ​​chip generates a termination instruction and controls the main circuit to stop output through the communication module.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention can detect the terminal to be charged in real time and automatically match the optimized protocol to achieve fast charging of the terminal to be charged, while avoiding the situation where the charger cannot quickly charge the terminal to be charged or cannot charge at all when the terminal to be charged is not compatible with the charger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a gallium nitride fast charger according to the present application.

[0016] Figure 2 A schematic diagram of the structure of a primary side circuit according to the present application.

[0017] Figure 3 A schematic diagram of the structure of an output assembly according to the present application.

[0018] Icon: 1 - main circuit, 2 - protocol optimization assembly, 3 - primary side circuit, 4 - output assembly, 5 - communication module, 6 - AI chip, 7 - access port, 8 - EMI filter circuit, 9 - rectifier bridge, 10 - power factor correction circuit, 11 - DC-DC conversion circuit, 12 - secondary side rectification filter circuit, 13 - protection circuit, 14 - control circuit, 15 - output port, 16 - gallium nitride switch tube, 17 - transformer, 18 - synchronous rectification module, 19 - output filter module. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0020] Example 1 Reference Figures 1 to 3 The gallium nitride fast charger according to the present application comprises a main circuit 1 and a protocol optimization assembly 2 connected by electricity, the main circuit 1 comprises a primary side circuit 3 and an output assembly 4 for charging a terminal to be charged connected by electricity, the protocol optimization assembly 2 comprises a communication module 5 and an AI chip 6, the communication module 5 is connected with the primary side circuit 3 and the output assembly 4 by electricity respectively, the communication module 5 is used to obtain charging parameters of the terminal to be charged and output parameters of the main circuit 1, the charging parameters comprise parameters such as protocol type, power capability and battery information of the terminal to be charged, the output parameters comprise parameters such as charging voltage, current, terminal battery temperature and charger temperature, and data interaction is realized; the AI chip 6 is connected with the communication module 5 by electricity, used to receive the charging parameters and the output parameters, run a preset AI algorithm to generate a dynamic charging strategy, and send a control instruction to the main circuit 1 through the communication module 5 to adjust the output voltage or current, wherein the communication module 5 adopts BK7258 (Broadcom), and the AI chip 6 adopts Sihan 590 (Cambrian).

[0021] In this solution, when the device is used to charge a terminal to be charged, the output component 4 is electrically connected to the terminal to be charged, and the communication module 5 establishes communication with the terminal to be charged and the main circuit 1 respectively, obtains the charging parameters of the terminal to be charged and the output parameters of the main circuit 1, and transmits them to the AI ​​chip. The AI ​​chip 6 receives the charging parameters and output parameters, runs a preset AI algorithm to generate a dynamic charging strategy, and sends a control instruction to the output component 4 through the communication module 5 to adjust its output voltage or current. The AI ​​chip 6 optimizes the protocol to achieve fast charging; this avoids the situation where the charger cannot quickly charge the terminal to be charged or cannot charge at all when the terminal to be charged is not compatible with the charger.

[0022] Example 2 Based on the above embodiment 1, Figures 1 to 3 The primary side circuit 3 includes an access port 7, an EMI filter circuit 8, a rectifier bridge 9, and a power factor correction circuit 10 which are electrically connected in sequence.

[0023] In this solution, the EMI filter circuit 8 is used to suppress electromagnetic interference and comply with safety standards; the rectifier bridge 9 converts AC power into DC power; and the power factor correction circuit 10 can improve power utilization and reduce harmonics.

[0024] As a preferred embodiment, the rectifier bridge 9 is a silicon bridge or a gallium nitride bridge; the power factor correction circuit 10 includes a GaN device.

[0025] Example 3 Based on the above embodiment 1, Figures 1 to 3 The output component 4 includes a DC-DC conversion circuit 11, a secondary-side rectifier and filter circuit 12, a protection circuit 13, a control circuit 14, and an output port 15, which are electrically connected in sequence. In this solution, the DC-DC conversion circuit 11 converts high-voltage DC power into low-voltage DC power. The protection circuit 13 is used for overvoltage protection, overcurrent protection, overheating protection, etc. These are usually implemented by a control chip and a detection circuit. Among them, the control chip can be PI's SC1936 or MPS's MP6908.

[0026] As a preferred embodiment, refer to Figures 1 to 3 The DC-DC conversion circuit 11 includes a gallium nitride switch tube 16 and a transformer 17. The gallium nitride switch tube 16 serves as a high-frequency switch and cooperates with the transformer 17 to realize the conversion from high-voltage direct current to low-voltage direct current.

[0027] As a preferred embodiment, the control circuit 14 includes a PWM controller, which is used to adjust the duty cycle of the GaN switch tube 16 to achieve voltage stabilization.

[0028] As a preferred embodiment, refer to Figures 1 to 3 The secondary-side rectification and filtering circuit 12 includes a synchronous rectification module 18 and an output filtering module 19. The synchronous rectification module 18 uses MOSFET to rectify the high-frequency AC power output by the secondary coil of the transformer 17 in the DC-DC conversion circuit 11 into DC power; the output filtering module 19 is an LC filter composed of an inductor and a capacitor.

[0029] Example 4 Based on the aforementioned embodiment 3, the output port 15 includes any combination of one or more of the following: a USB-C interface, a USB-A interface.

[0030] Example 5 Based on the aforementioned embodiment 1, communication module 5 supports dual-mode communication using Wi-Fi and Bluetooth low energy. In this solution, communication module 5 establishes a Bluetooth connection with the terminal to be charged to obtain charging parameters, including battery type, current charge level, temperature, and supported fast charging protocols such as PD / QC / SCP. It also establishes a wired or wireless connection with output component 4 to obtain its output parameters, including output voltage range, current capability, and supported protocol versions.

[0031] Example 6 Based on the above embodiment, a fast charging adjustment method for a gallium nitride charger includes the following steps: S1: The communication module 5 establishes communication with the terminal to be charged and the main circuit 1 respectively, obtains the charging parameters of the terminal to be charged and the output parameters of the main circuit 1, and transmits them to the AI ​​chip; S2: The AI ​​chip runs a preset AI algorithm, generates an initial charging strategy based on the information obtained during the initialization phase, and sends a start instruction to the main circuit 1 through the communication module 5; S3: Communication module 5 collects voltage, current, and temperature data during the charging process in real time and updates the data to the AI ​​chip at regular intervals. The AI ​​chip optimizes the charging strategy based on the real-time data, generates adjustment instructions, and feeds them back to main circuit 1 via communication module 5 to dynamically adjust its output voltage or current. S4: When the power level of the terminal to be charged reaches 100% or the AI ​​chip detects an abnormal state, the AI ​​chip generates a termination instruction and controls the main circuit 1 to stop output through the communication module 5.

[0032] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it will be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, the drawings, and the claims, numerous variations and modifications may be made to the components and / or layout of the subject combination arrangement. In addition to variations and modifications to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A gallium nitride fast charger, characterized by: The invention comprises an electrically connected main circuit (1) and a protocol optimization component (2), wherein the main circuit (1) comprises an electrically connected primary side circuit (3) and an output component (4) for charging a terminal to be charged, and the protocol optimization component (2) comprises a communication module (5) and an AI chip (6), wherein the communication module (5) is electrically connected to the primary side circuit (3) and the output component (4), respectively, and the communication module (5) is used to obtain the charging parameters of the terminal to be charged and the output parameters of the main circuit (1), and realize data interaction; the AI ​​chip (6) is electrically connected to the communication module (5), and is used to receive the charging parameters and output parameters, run a preset AI algorithm to generate a dynamic charging strategy, and send a control instruction to the main circuit (1) through the communication module (5) to adjust its output voltage or current.

2. The gallium nitride fast charger according to claim 1, characterized in that: The primary side circuit (3) includes an access port (7), an EMI filter circuit (8), a rectifier bridge (9), and a power factor correction circuit (10) which are electrically connected in sequence.

3. The gallium nitride fast charger according to claim 2, characterized in that: The rectifier bridge (9) is a silicon bridge or a gallium nitride bridge; and the power factor correction circuit (10) includes a GaN device.

4. The gallium nitride fast charger according to claim 1, characterized in that: The output component (4) includes a DC-DC conversion circuit (11), a secondary-side rectifier filter circuit (12), a protection circuit (13), a control circuit (14), and an output port (15) that are electrically connected in sequence.

5. The gallium nitride fast charger according to claim 4, characterized in that: The DC-DC conversion circuit (11) comprises a gallium nitride switch tube (16) and a transformer (17). The gallium nitride switch tube (16) serves as a high-frequency switch and cooperates with the transformer (17) to realize conversion from high-voltage direct current to low-voltage direct current.

6. The gallium nitride fast charger according to claim 5, characterized in that: The control circuit (14) includes a PWM controller, and the PWM controller is used to adjust the duty cycle of the gallium nitride switch tube (16) to achieve voltage stabilization.

7. The gallium nitride fast charger according to claim 6, characterized in that: The secondary-side rectification and filtering circuit (12) includes a synchronous rectification module (18) and an output filtering module (19). The synchronous rectification module (18) uses MOSFET to rectify the high-frequency alternating current output from the secondary coil of the transformer (17) in the DC-DC conversion circuit (11) into direct current; and the output filtering module (19) is an LC filter composed of an inductor and a capacitor.

8. The gallium nitride fast charger according to claim 4, characterized in that: The output port (15) includes any combination of one or more of the following: a USB-C interface, a USB-A interface.

9. The gallium nitride fast charger according to claim 1, characterized in that: The communication module (5) is a module that supports Wi-Fi and Bluetooth low energy dual-mode communication.

10. A fast charge adjustment method for a gallium nitride charger according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The communication module (5) establishes communication with the terminal to be charged and the main circuit (1) respectively, obtains the charging parameters of the terminal to be charged and the output parameters of the main circuit (1), and transmits them to the AI ​​chip; S2: The AI ​​chip runs a preset AI algorithm, generates an initial charging strategy based on the information obtained in the initialization phase, and sends a start-up instruction to the main circuit (1) through the communication module (5); S3: The communication module (5) collects voltage, current, and temperature data during the charging process in real time, and updates the data to the AI ​​chip once at a fixed time interval; the AI ​​chip optimizes the charging strategy based on the real-time data, generates adjustment instructions, and feeds them back to the main circuit (1) through the communication module (5) to dynamically adjust its output voltage or current; S4: When the power level of the terminal to be charged reaches 100% or the AI ​​chip detects an abnormal state, the AI ​​chip generates a termination instruction and controls the main circuit (1) to stop output through the communication module (5).

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