Charging management system and method for multi-output-port fast charging and storage medium

Abstract

The invention provides a multi-output-port fast charging management system and method and a storage medium. The charging management system is characterized in that the input end of a voltage management circuit unit is connected with the output end of a main power supply, and the output end of the voltage management circuit unit is connected with the input end of a master control system management unit and the input end of an output port current detection unit; the output end of the master control system management unit is connected with the input end of the output port current detection unit and the charging output end. The output end of the output port current detection unit is connected with the corresponding charging output end; when the charging output port is connected to a device, the master control system management unit collects and analyzes a charging protocol of the device connected to the charging output port; and in the charging process of the equipment, the main control system management unit continuously monitors the charging current of the equipment. According to the system, the charging protocols of the charging devices are collected and analyzed, so that a plurality of charging devices can meet the optimal charging voltage and current.

Description

Technical Field

[0001] The present application relates to the field of fast charging technology, and in particular to a charging management system, method and storage medium for fast charging with multiple output ports. Background Art

[0002] With the widespread application of various fast charging technologies in mobile communication terminals, the charging power of mobile devices continues to increase. In order to provide higher power output in a short time, existing mobile devices increasingly support higher charging voltages, and the types of charging protocols are becoming more diverse. When multiple devices are connected to the same charging source at the same time, there are three common solutions on the market:

[0003] Solution 1: When multiple devices are connected to the same charger, they all output a fixed charging voltage.

[0004] Solution 2: The same charger provides a fixed high-voltage fast-charging port and a normal charging port, and users can only choose one device for fast charging.

[0005] Solution 3: The charger's multiple output ports can support different high-voltage fast charging (such as 9V, 12V, etc.) at the same time, but each port has a separate power limit. For example, when the total power is 60W, one port outputs a fixed 25W and the other outputs a fixed 35W.

[0006] Among the above three solutions, some are more complex in design to meet the needs of different charging voltages, and even require users to plug the device into a designated fast charging port for charging. In general, multiple charging ports work relatively independently, and the ports are not related to each other. In addition, the design costs of these solutions are high, and when multiple devices are charged at the same time, resources are not fully utilized, resulting in a certain amount of waste.

[0007] Referring to a patent for a multi-output DC power supply (CN208112310U), the invention proposes a new idea: when the charging device detects that only one device is connected, the port is allowed to provide a wide voltage output, so that the device is charged in the fastest charging mode, while the output of other ports is turned off; when multiple devices are connected, the system cancels the wide voltage output mode and uniformly outputs 5V voltage to ensure that all devices can be charged. Although this method can solve the voltage coordination problem when charging multiple devices, it still has the problem of resource waste when it cannot respond to high-voltage fast charging at the same time. Summary of the invention

[0008] In order to solve the above technical problems, the present application proposes a charging management system, method and storage medium for multi-output fast charging. The present application can collect and analyze the charging protocol information of the devices connected to the charging output ports, automatically select the optimal charging power for charging, and balance and dynamically adjust the charging power between different devices during the charging process.

[0009] In a first aspect, the present application proposes a multi-port fast charging charging management system, the charging management system comprising:

[0010] A main power supply, at least one voltage management circuit unit, a main control system management unit and more than two charging output ports; wherein each charging output port is correspondingly configured with an output port current detection unit;

[0011] The input end of the voltage management circuit unit is connected to the output end of the main power supply, the voltage management circuit unit is bidirectionally connected to the main control system management unit, and the output end of the voltage management circuit unit is connected to the input end of the output port current detection unit;

[0012] The output end of the main control system management unit is connected to the input end of the output port current detection unit and the charging output port;

[0013] The output end of the output port current detection unit is connected to its corresponding charging output port;

[0014] When the charging output port is connected to a device, the main control system management unit collects and analyzes the charging protocol of the device connected to the charging output port;

[0015] During the charging process of the device, the main control system management unit continuously monitors the charging current of the device.

[0016] Furthermore, the voltage management circuit unit at least includes: a first MOS tube gate connected to the HG port of the DC-DC chip, a first switch MOS tube source connected to the power supply VCC, and a first MOS tube drain connected to the second MOS tube source; a second MOS tube source and drain connected to the LG port of the DC-DC chip, and a second MOS tube drain connected to ground; one end of the inductor is connected to the BST port of the DC-DC chip, and the other end is connected to the first feedback resistor and the Vout output terminal; one end of the second feedback resistor is connected to the first feedback resistor and the FB data line, and the other end is grounded.

[0017] Furthermore, the main control system management unit includes at least: a main control system management chip, which can adjust the output voltage of the DC-DC chip through the FB data line, collect the charging protocol of the charging output port through the CC1 port, CC2 port, DM1 port or DP1 port, and combine the charging protocol through the third MOS tube to turn on or off the power output of the charging output port.

[0018] The output port current detection unit is connected between the CSN port and the CSP port of the main control system management chip.

[0019] The system proposed in this application can automatically analyze and select the optimal charging power according to the charging protocol of the connected device. Through real-time monitoring and analysis of the devices connected to each charging output port, the main control system can ensure that each device obtains the most suitable voltage and current, thereby improving charging efficiency, reducing charging time, and minimizing power waste.

[0020] The system is compatible with different brands and types of devices, and can automatically identify and adapt to the charging protocols of the devices. Users do not need to manually adjust settings or worry about the compatibility of charging devices during use. All devices can obtain the optimal charging power according to their characteristics, thereby improving the versatility and intelligence of the charger. Through the dynamic adjustment of the charging power by the main control system, the system can ensure that when multiple devices are charged at the same time, the power resources are maximized to avoid unnecessary waste of electricity.

[0021] Each charging output port is equipped with an independent current detection unit that can monitor the charging current of the device in real time. This not only helps to ensure that the current during charging meets the device requirements, but also effectively avoids device damage caused by current overload or voltage instability. The main control system can respond quickly based on the current monitoring data, adjust the voltage output or take other protective measures, further improving the safety and reliability of the system.

[0022] To summarize, the charging management system proposed in this application obtains the charging protocols of each charging device and performs intelligent voltage management and power balance adjustment to ensure the efficiency, safety and user-friendliness of the charging process, while improving the compatibility of the equipment and the energy efficiency of the system, and adapting to the needs of modern multi-device charging.

[0023] In a second aspect, the present application proposes a multi-port fast charging charging management method based on the multi-port fast charging charging management system described in the first aspect, and the charging management method includes:

[0024] S1: Determine whether each charging output port is connected to a device;

[0025] S2: If the charging output port is connected to a device, obtain the charging protocol supported by the device;

[0026] S3: Summarize, collect and analyze the charging protocols of all devices to obtain the optimal charging voltage for each device;

[0027] S4: Charge each device using the optimal charging voltage corresponding to each device.

[0028] The charging management method proposed in this application can aggregate the charging protocols of all devices when multiple devices are charging at the same time, and can realize power allocation between ports to ensure that each device can charge at the optimal speed. The intelligent and automated characteristics of the charging management method eliminate the need for users to manually select ports or set parameters. After directly connecting the device, the system can automatically adjust the charging voltage and current. This convenience greatly simplifies the user's operation and is especially suitable for multi-device usage scenarios such as homes and offices.

[0029] Furthermore, the step S3 further includes:

[0030] When there is one voltage management circuit unit, the corresponding charging voltage data is obtained from the charging protocols of all devices, and the maximum same charging voltage of all devices is found therein, and the same charging voltage is determined as the optimal charging voltage for each device.

[0031] By finding the maximum common charging voltage among all devices, the voltage management circuit can provide a unified voltage standard for all devices. This approach can avoid unnecessary voltage adjustments and current waste caused by different voltage requirements of different devices, and improve the charging efficiency of the entire system.

[0032] For multiple devices charging at the same time, a unified maximum charging voltage standard is adopted to avoid the complexity of adjusting the voltage for each device individually. This not only simplifies the system design and control logic, but also reduces the problem of low charging efficiency caused by voltage differences, especially when multiple devices are charged in parallel, ensuring that each device can obtain an environment close to its optimal charging voltage. By optimizing the charging voltage, the system can charge multiple devices in parallel more efficiently, ensuring that the charging process is as fast as possible, avoiding the situation where multiple devices are delayed when charging, and improving the overall experience in the charging scenario.

[0033] By selecting the same maximum charging voltage for all devices through the voltage management circuit unit, charging efficiency, device compatibility, safety and user experience can be significantly improved, while reducing energy consumption and maintenance costs. This approach not only optimizes the charging process, but also provides users with a more intelligent and efficient charging solution.

[0034] Furthermore, the step S3 further includes:

[0035] When there are multiple voltage management circuit units, the corresponding charging voltage data is obtained from multiple charging protocols, and the maximum charging voltage and power best matching value supported by each device under the allowed total power of the main control system is found. The matched maximum charging voltage is determined as the optimal charging voltage of the corresponding device.

[0036] By selecting the maximum supported charging voltage for each device, you can ensure that the device charges at the fastest speed during the charging process. This is because there is usually a direct relationship between charging voltage and charging speed, with higher voltages providing more power and thus speeding up the charging process.

[0037] A system integrating multiple voltage management circuit units can obtain charging data from multiple charging protocols for analysis and optimization, making the charging system more intelligent. In the scenario of multi-device charging, different devices support different charging protocols. By obtaining the charging voltage supported by each device and selecting the best charging voltage for each device based on the maximum voltage, charging failure or slow charging speed caused by voltage incompatibility can be avoided, improving compatibility and stability in multi-device charging scenarios.

[0038] Furthermore, after step S4, the following steps are further included:

[0039] The charging power of each charging output port is continuously monitored, and the charging power of each charging output port is balanced and adjusted.

[0040] Furthermore, the balancing adjustment includes: synchronously adjusting the initially allocated charging power of the charging output port with reduced charging current demand to other charging output ports.

[0041] Furthermore, the balance adjustment also includes: adjusting the charging power of other charging output ports according to the excess charging power quota in combination with the charging protocol of each charging output port.

[0042] Continuously monitoring and adjusting the charging power of each charging output port helps to dynamically optimize the overall power distribution of the system. By balancing the charging power, it can ensure that each charging port fully utilizes the available power of the system, avoids excessive load on some ports and causes power waste or inefficiency, and ensures that each port can obtain the optimal power required to maximize charging efficiency.

[0043] When the charging demand of some ports decreases, the system can transfer the remaining power resources of these ports to other ports that need more power to avoid idle power. Through real-time monitoring, the system can adjust the output according to demand and power allocation to ensure that all charging ports can maintain the best status.

[0044] In a third aspect, the present application proposes a computer-readable storage medium, which stores computer-executable instructions, and is characterized in that when the computer-executable instructions are executed by a control processor, the charging management method for multi-output port fast charging as described in the second aspect is implemented.

[0045] In summary, the present application proposes a charging management system, method and storage medium for fast charging with multiple output ports, wherein the charging management system includes: the input end of the voltage management circuit unit is connected to the output end of the main power supply, the output end of the voltage management circuit unit is connected to the input end of the main control system management unit and the input end of the output port current detection unit; the output end of the main control system management unit is connected to the input end of the output port current detection unit and the charging output end; the output end of the output port current detection unit is connected to its corresponding charging output end; when the charging output port is connected to a device, the main control system management unit collects and analyzes the charging protocol of the device connected to the charging output port; when the device is charging, the main control system management unit continuously monitors the charging current of the device.

[0046] Compared with the prior art, this application has at least the following beneficial effects:

[0047] This application can collect and analyze the charging protocol information of the device connected to the charging output port, automatically select the optimal charging power for charging, and balance and dynamically adjust the charging power between different devices during the charging process. By collecting and analyzing the charging protocols of the charging devices, multiple charging devices can meet the optimal charging voltage and current. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of a charging management system for fast charging with multiple output ports shown in an embodiment of the present application.

[0049] Figure 2 It is a schematic diagram of another multi-port fast charging management system shown in an embodiment of the present application.

[0050] Figure 3 It is a main power circuit diagram of a charging management system with multiple output ports for fast charging shown in an embodiment of the present invention.

[0051] Figure 4 It is a circuit diagram of a subsequent control circuit of a charging management system for fast charging with multiple output ports shown in an embodiment of the present invention.

[0052] Figure 5 It is a flow chart of a charging management method for multi-port fast charging shown in an embodiment of the present application. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] Embodiment 1:

[0055] The present application proposes a multi-port fast charging charging management system, the charging management system comprising:

[0056] A main power supply, at least one voltage management circuit unit, a main control system management unit and more than two charging output ports; wherein each charging output port is correspondingly configured with an output port current detection unit;

[0057] The input end of the voltage management circuit unit is connected to the output end of the main power supply, the voltage management circuit unit is bidirectionally connected to the main control system management unit, and the output end of the voltage management circuit unit is connected to the input end of the output port current detection unit;

[0058] The output end of the main control system management unit is connected to the input end of the output port current detection unit and the charging output port;

[0059] The output end of the output port current detection unit is connected to its corresponding charging output port;

[0060] When the charging output port is connected to a device, the main control system management unit collects and analyzes the charging protocol of the device connected to the charging output port;

[0061] During the charging process of the device, the main control system management unit continuously monitors the charging current of the device.

[0062] As attached Figure 1 As shown, a preferred multi-output fast charging charging management system shown in an embodiment of the present invention includes two charging output ports: charging output port A and charging output port B; it also includes a voltage management circuit unit, a main control system management unit and two output port circuit management circuit units. Among them, the main power supply is used to provide the power required by the entire system. The voltage management circuit unit is used to obtain voltage from the main power supply and provide a stable voltage for subsequent circuits. The main control system management unit is the core control unit of the system, which is responsible for the management of the charging protocol, power distribution and monitoring of the charging current.

[0063] Charging output port A and charging output port B are used to provide charging current to the connected device. The output port current detection unit is used to monitor and feedback the current information of each charging output port to ensure that the main control system management unit monitors and adjusts the charging process in real time.

[0064] The output of the main power supply is connected to the input of the voltage management circuit unit to provide the power required by the system. The voltage management circuit unit will adjust the voltage as needed to meet the charging requirements.

[0065] The voltage management circuit unit is bidirectionally connected to the main control system management unit. The main control system management unit will send an adjustment signal to the voltage management circuit unit according to the charging protocol information of the device to control the output of the voltage. The voltage management circuit unit will transmit the adjusted voltage information to the main control system management unit.

[0066] The output end of the voltage management circuit unit is also connected to the input end of the two output current detection units. This ensures that the main control system can obtain real-time current data from the current detection unit, thereby realizing accurate monitoring and regulation of the charging process.

[0067] The output end of the main control system management unit is connected to the current detection unit corresponding to each charging output port. Through this connection, the main control system can analyze and process the current data of each port, adjust the power distribution in time, and optimize the charging process.

[0068] The output end of the main control system management unit is also directly connected to the charging output ports A and B. This connection enables the main control system to obtain the charging protocol information of the device connected to the charging output port, and then control and adjust the output power of each charging port to meet the needs of the connected device.

[0069] The output end of each output port current detection unit is connected to its corresponding charging output port. The current detection unit monitors the charging current and feeds the data back to the main control system management unit to help the system determine the charging process and optimize it.

[0070] As attached Figure 2 As shown, it is another preferred embodiment proposed by the present application, and the attached Figure 1 Compared with the system shown in the figure, Figure 2 The system shown in the figure has an additional voltage management circuit unit, which allows the charging output port A and the charging output port B to output different charging voltages. Figure 2 The system shown is Figure 1 The systems shown are consistent and will not be described in detail here.

[0071] In an embodiment of the present invention, optionally, the voltage management circuit unit includes at least: a first MOS tube gate connected to the HG port of the DC-DC chip, a first switch MOS tube source connected to the power supply VCC, and a first MOS tube drain connected to the second MOS tube source; a second MOS tube source and drain connected to the LG port of the DC-DC chip, and a second MOS tube drain connected to ground; one end of the inductor is connected to the BST port of the DC-DC chip, and the other end is connected to the first feedback resistor and the Vout output terminal; one end of the second feedback resistor is connected to the first feedback resistor and the FB data line, and the other end is grounded.

[0072] In an embodiment of the present invention, optionally, the main control system management unit includes at least: a main control system management chip, which can adjust the output voltage of the DC-DC chip through the FB data line, collect the charging protocol of the charging output port through the CC1 port, CC2 port, DM1 port or DP1 port, and combine the charging protocol through a third MOS tube to turn on or off the power output of the charging output port.

[0073] In the embodiment of the present invention, optionally, the output port current detection unit is connected between the CSN port and the CSP port of the main control system management chip.

[0074] As a preferred embodiment, Figure 3 As shown, it is a main power circuit diagram of a charging management system with multiple output ports for fast charging shown in an embodiment of the present invention, which is specifically as follows:

[0075] When L1 and N1 are connected to the power supply, the current passes through the inductor LF1, is rectified by the rectifier bridge DB1, and then provides a stable power supply for the transformer T12 through the filter circuit (including electrolytic capacitors EC2, EC3 and inductor L1). Diodes D2, D3 and resistor R5 provide working power for the main chip U3. Chip U3 drives the switch tube Q1 according to the feedback signal from the optocoupler U2B, thereby providing a low-voltage power output for the back end of the transformer. The secondary side of the transformer is composed of a DC rectifier and voltage regulator circuit consisting of chip U1, switch tube Q2, feedback optocoupler U2A and regulator UA1.

[0076] As a preferred embodiment, Figure 4 As shown, it is a circuit diagram of a subsequent control circuit of a charging management system for multi-output fast charging shown in an embodiment of the present invention, which is specifically as follows:

[0077] The voltage management unit includes a DC-DC chip U4, switch tubes Q4 and Q5, an inductor L2, and feedback circuits R15 and R20. Vout_A is the step-down output terminal, and FB-A is connected to U5 in the main control system management unit 1.3A. The main control system U5 adjusts the output voltage of the DC-DC chip through the FB-A data line. The device protocol collection of the charging output port 1.5 is completed through CC1, CC2, DM1, and DP1, and the switch tube Q3 controls the power switch of the charging output port according to the collected protocol. At the same time, the current detection unit R19 is used to monitor the current changes of the output port. The working principles of the voltage management unit 1.2A, the output current detection unit 1.4A, and the charging output port 1.6 are similar to those described above.

[0078] When the charging output port 1.5 or 1.6 is connected to a device, the main control system management units U5 and U7 collect the protocols of the two devices respectively and calculate the optimal working voltage and power of each. The main control system management unit 1.3 adjusts the output voltage of the two voltage management units through the FB-A and FB-B data interfaces, and outputs the adjusted voltage to the corresponding charging output port through the switch tube.

[0079] During the charging process of the device, the main control system management unit 1.3 monitors the current changes of each port in real time. When the current of the charging output port 1.5 decreases, the main control system management unit distributes the excess power to the charging output port 1.6 to optimize the overall power distribution and maintain the charging efficiency.

[0080] The two chips in the main control system management unit 1.3 communicate through RA and TA to perform real-time data exchange and processing.

[0081] The main control system management unit 1.3 can be implemented by a single chip or a dual chip solution. As the chip integration increases, the system block diagram may change, but in any case, the design is within the scope of protection of this patent.

[0082] It should be noted that the embodiments of the present invention only provide one or two situations. In the remaining embodiments, the number of charging output ports, output port current detection units or voltage management circuit units may be more, but they are all within the protection scope of the present application.

[0083] In actual use, users can plug one or more fast-charging devices into the charger, and the charger will automatically support the multi-device fast-charging function through intelligent judgment, and users only need to plug them in blindly. When multiple devices are plugged into the charger at the same time, the main control system connects with each mobile device through the protocol line, collects and analyzes the charging protocols supported by the device, and then provides the best charging solution.

[0084] The system proposed in this application can automatically analyze and select the optimal charging power according to the charging protocol of the connected device. Through real-time monitoring and analysis of the devices connected to each charging output port, the main control system can ensure that each device obtains the most suitable voltage and current, thereby improving charging efficiency, reducing charging time, and minimizing power waste.

[0085] The charging management system proposed in this application obtains the charging protocols of various charging devices, performs intelligent voltage management and power balance adjustment, ensures the efficiency, safety and user-friendliness of the charging process, while improving the compatibility of the equipment and the energy efficiency of the system, and adapts to the needs of modern multi-device charging.

[0086] Embodiment 2:

[0087] As attached Figure 3 As shown, the present application proposes a multi-port fast charging charging management method based on the multi-port fast charging charging management system described in Example 1, and the charging management method includes:

[0088] S1: Determine whether each charging output port is connected to a device;

[0089] S2: If the charging output port is connected to a device, obtain the charging protocol supported by the device;

[0090] S3: Summarize, collect and analyze the charging protocols of all devices to obtain the optimal charging voltage for each device;

[0091] S4: Charge each device using the optimal charging voltage corresponding to each device.

[0092] The charging management method proposed in this application can aggregate the charging protocols of all devices when multiple devices are charging at the same time, and can realize power allocation between ports to ensure that each device can charge at the optimal speed. The intelligent and automated characteristics of the charging management method eliminate the need for users to manually select ports or set parameters. After directly connecting the device, the system can automatically adjust the charging voltage and current. This convenience greatly simplifies the user's operation and is especially suitable for multi-device usage scenarios such as homes and offices.

[0093] As a preferred embodiment, the method may be implemented in the following steps during actual use:

[0094] When the user plugs multiple devices into different ports of the charger, the charger first determines whether there is a device connected to each port. If a port is not connected to a device, no charging operation is performed on that port.

[0095] Assuming that a smartphone is plugged into the first port and a tablet is plugged into the second port, the charger will establish a connection with each device through a communication protocol (such as USB-PD, QC, etc.) to obtain the charging protocol information supported by each device. For example, a smartphone may support the QC3.0 protocol, and a tablet may support the USB-PD protocol.

[0096] The charger's main control system will collect the charging protocol information of all connected devices and analyze the optimal charging voltage for each device. For example, the QC3.0 protocol supported by mobile phones requires a charging voltage between 5V and 9V, while the USB-PD protocol supported by tablets requires a charging voltage of 5V or 9V. The main control system will determine the optimal charging voltage for each device based on these protocols.

[0097] The charger provides the corresponding charging voltage for each device based on the analysis results. The mobile phone gets a 9V fast charging voltage, while the tablet gets a 5V voltage. In this way, the charger can intelligently provide the best charging voltage for each device to ensure charging efficiency and device safety.

[0098] In the embodiment of the present invention, optionally, step S3 further includes:

[0099] When there is one voltage management circuit unit, the corresponding charging voltage data is obtained from the charging protocols of all devices, and the maximum same charging voltage of all devices is found therein, and the same charging voltage is determined as the optimal charging voltage for each device.

[0100] As a preferred embodiment, the system has only one voltage management unit, and the main control system needs to find a charging voltage protocol that is commonly supported by all devices. When the output circuit is connected to a mobile device, the system communicates with the device through a "handshake" protocol, and the integrated circuit in the output circuit A exchanges data with the integrated circuit of the mobile device through the bus. The main control system management unit collects and summarizes the charging protocols supported by each mobile device.

[0101] For example, a mobile device connected to output circuit A supports the following charging protocols: 12V / 3A, 9V / 3A, 5V / 4.5A; while a mobile device connected to output circuit B supports the following charging protocols: 9V / 2A, 5V / 2.4A. The main control system will collect and save this charging information according to the handshake protocol of the device.

[0102] The main control system management unit will summarize the charging protocols of all devices and make the following judgments:

[0103] If there are multiple common charging voltage protocols, the system prioritizes higher voltage and lower current modes to improve charging efficiency and reduce line losses.

[0104] In the above example, the device on output circuit A supports 12V, 9V and 5V, while the device on output circuit B supports 9V and 5V. The common charging voltages of the two devices are 9V and 5V. In order to ensure efficient charging and reduce energy loss, the main control system will prefer the 9V voltage mode for unified charging.

[0105] According to the judgment of the main control system, the system will adjust the output voltage to 9V and provide it to all connected devices, thereby achieving an efficient charging process.

[0106] By finding the maximum common charging voltage among all devices, the voltage management circuit can provide a unified voltage standard for all devices. This approach can avoid unnecessary voltage adjustments and current waste caused by different voltage requirements of different devices, and improve the charging efficiency of the entire system.

[0107] For multiple devices charging at the same time, a unified maximum charging voltage standard is adopted to avoid the complexity of adjusting the voltage for each device individually. This not only simplifies the system design and control logic, but also reduces the problem of low charging efficiency caused by voltage differences, especially when multiple devices are charged in parallel, ensuring that each device can obtain an environment close to its optimal charging voltage. By optimizing the charging voltage, the system can charge multiple devices in parallel more efficiently, ensuring that the charging process is as fast as possible, avoiding the situation where multiple devices are delayed when charging, and improving the overall experience in the charging scenario.

[0108] In the embodiment of the present invention, optionally, step S3 further includes:

[0109] When there are multiple voltage management circuit units, the corresponding charging voltage data is obtained from multiple charging protocols, and the maximum charging voltage and power best matching value supported by each device under the allowed total power of the main control system is found. The matched maximum charging voltage is determined as the optimal charging voltage of the corresponding device.

[0110] As a preferred embodiment, when the main power supply has multiple voltage management units, the main control system will provide the most suitable charging voltage for the device according to the charging voltage protocol supported by each voltage management unit. The specific process is as follows:

[0111] In this case, the main power supply has multiple independent voltage management units that can provide different charging voltages for different devices at the same time. The main control system will select the optimal charging voltage protocol that can be supported by the main power supply according to the charging requirements of the connected device.

[0112] Assume that the device connected to output circuit A supports the 12V charging protocol, while the device connected to output circuit B supports the 9V charging protocol. At this time, the main control system will select the appropriate charging voltage for the two output circuits respectively:

[0113] The device of output circuit A is preferably charged with 12V voltage.

[0114] The device of output circuit B is preferably charged with 9V voltage.

[0115] The main control system will analyze the charging protocols of each voltage management unit to ensure that each device can obtain the required voltage. The system will adjust the output voltage of the main power supply according to the charging needs of the device to meet the charging requirements of the device and ensure the efficiency and safety of the charging process.

[0116] To achieve the above charging management, the chip in the main control system analyzes the charging protocol of the connected device in real time and optimizes the voltage distribution. The chip exchanges charging information with the device through the communication protocol to ensure that each device is charged at the most suitable voltage, thereby improving charging efficiency and reducing energy loss.

[0117] In the embodiment of the present invention, optionally, after step S4, the following steps are further included:

[0118] The charging power of each charging output port is continuously monitored, and the charging power of each charging output port is balanced and adjusted.

[0119] In the embodiment of the present invention, optionally, the balancing adjustment includes: synchronously adjusting the initially allocated charging power of the charging output port with reduced charging current demand to other charging output ports.

[0120] In the embodiment of the present invention, optionally, the balance adjustment further includes: adjusting the charging power of other charging output ports according to the excess charging power quota in combination with the charging protocol of each charging output port.

[0121] In the embodiment of the present invention, when the charging demand of some ports decreases, the system can transfer the remaining power resources of these ports to other ports that need more power to avoid power idleness. Through real-time monitoring, the system can adjust the output according to demand and power allocation to ensure that all charging ports can maintain the best state.

[0122] For example, the total charging voltage and current provided by the main power supply is 9V 3A. After the protocol distribution, the smartphone connected to output port A and the tablet connected to output port B both obtain a charging voltage and current of 9V 1.5A. Assuming that the battery charging current demand of the tablet gradually decreases, the current detection unit of the output port will detect this change.

[0123] In this case, the main control system management unit will partially or completely reallocate the charging power (9V 1.5A) originally allocated to the device to the smartphone based on the reduction in the tablet's charging current. Through this adjustment, the total power of the main power supply remains unchanged, but the charging process of each device can be optimized.

[0124] At the same time, the main control system management unit will summarize and calculate the excess power and the initial handshake protocol of each output port (i.e. the charging requirements confirmed between the device and the power supply). The main control system will dynamically adjust the charging current or voltage of output port A by adjusting the output voltage management circuit and current detection circuit to ensure that the smartphone can obtain more charging power, such as increasing its charging current to 2A.

[0125] Continuously monitoring and adjusting the charging power of each charging output port helps to dynamically optimize the overall power distribution of the system. By balancing the charging power, it can ensure that each charging port fully utilizes the available power of the system, avoids excessive load on some ports and causes power waste or inefficiency, and ensures that each port can obtain the optimal power required to maximize charging efficiency.

[0126] Embodiment three:

[0127] The present application proposes a computer-readable storage medium, which stores computer-executable instructions, and is characterized in that when the computer-executable instructions are executed by a control processor, the charging management method for multi-output port fast charging as described in Example 2 is implemented.

[0128] It should be noted that since the computer-readable storage medium in this embodiment and the charging management method for multi-output port fast charging in the above embodiment are based on the same inventive concept, the corresponding contents in the method embodiment are also applicable to this embodiment and will not be described in detail here.

[0129] In the computer-readable storage medium, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk SolidState Disk (SSD)), etc.

[0130] In summary, the present application proposes a charging management system, method and storage medium for fast charging with multiple output ports, wherein the charging management system includes: the input end of the voltage management circuit unit is connected to the output end of the main power supply, the output end of the voltage management circuit unit is connected to the input end of the main control system management unit and the input end of the output port current detection unit; the output end of the main control system management unit is connected to the input end of the output port current detection unit and the charging output end; the output end of the output port current detection unit is connected to its corresponding charging output end; when the charging output port is connected to a device, the main control system management unit collects and analyzes the charging protocol of the device connected to the charging output port; when the device is charging, the main control system management unit continuously monitors the charging current of the device.

[0131] This application can collect and analyze the charging protocol information of the device connected to the charging output port, automatically select the optimal charging power for charging, and balance and dynamically adjust the charging power between different devices during the charging process. By collecting and analyzing the charging protocols of the charging devices, multiple charging devices can meet the optimal charging voltage and current.

[0132] In several embodiments provided in the present application, it is understood that each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved.

[0133] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for enabling an electronic device to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0134] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A multi-port fast charging charging management system, characterized in that: The charging management system comprises: A main power supply, at least one voltage management circuit unit, a main control system management unit and more than two charging output ports; wherein each charging output port is correspondingly configured with an output port current detection unit; The input end of the voltage management circuit unit is connected to the output end of the main power supply, the voltage management circuit unit is bidirectionally connected to the main control system management unit, the output end of the voltage management circuit unit is connected to the input end of the output current detection unit; the output end of the main control system management unit is connected to the input end of the output current detection unit and the charging output port; The output end of the output port current detection unit is connected to its corresponding charging output port; When the charging output port is connected to a device, the main control system management unit collects and analyzes the charging protocol of the device connected to the charging output port; During the charging process of the device, the main control system management unit continuously monitors the charging current of the device.

2. The multi-port fast charging charging management system according to claim 1, characterized in that: The voltage management circuit unit at least includes: a first MOS tube gate connected to the HG port of the DC-DC chip, a first switch MOS tube source connected to the power supply VCC, and a first MOS tube drain connected to the second MOS tube source; a second MOS tube source and drain connected to the LG port of the DC-DC chip, and a second MOS tube drain connected to ground; one end of the inductor is connected to the BST port of the DC-DC chip, and the other end is connected to the first feedback resistor and the Vout output terminal; one end of the second feedback resistor is connected to the first feedback resistor and the FB data line, and the other end is grounded.

3. The multi-port fast charging charging management system according to claim 2, characterized in that: The main control system management unit at least includes: a main control system management chip, which can adjust the output voltage of the DC-DC chip through the FB data line, collect the charging protocol of the charging output port through the CC1 port, CC2 port, DM1 port or DP1 port, and can combine the charging protocol through the third MOS tube to turn on or off the power output of the charging output port; The output port current detection unit is connected between the CSN port and the CSP port of the main control system management chip.

4. A charging management method for a multi-port fast charging system based on the multi-port fast charging system of claims 1-3, characterized in that: The charging management method comprises: S1: Determine whether each charging output port is connected to a device; S2: If the charging output port is connected to a device, obtain the charging protocol supported by the device; S3: Summarize, collect and analyze all charging protocols to obtain the optimal charging voltage for each device; S4: Charge each device using the latest charging voltage corresponding to each device.

5. The charging management method for multi-port fast charging according to claim 4, characterized in that: The step S3 also includes: when there is a voltage management circuit unit, obtaining corresponding charging voltage data from multiple charging protocols, finding the maximum same charging voltage among them, and determining the same charging voltage as the optimal charging voltage for each device.

6. The charging management method for multi-port fast charging according to claim 4, characterized in that: The step S3 also includes: when there are multiple voltage management circuit units, obtaining corresponding charging voltage data from multiple charging protocols, and finding the maximum charging voltage and power best matching value supported by each device under the allowed total power of the main control system, and the matched maximum charging voltage is determined as the optimal charging voltage of the corresponding device.

7. The charging management method for multi-port fast charging according to claim 4, characterized in that: After step S4, the following steps are also included: The charging power of each charging output port is continuously monitored, and the charging power of each charging output port is balanced and adjusted.

8. The charging management method for multi-port fast charging according to claim 7, characterized in that: The balancing adjustment includes: synchronously adjusting the initially allocated charging power of the charging output port with reduced charging current demand to other charging output ports.

9. The charging management method for multi-port fast charging according to claim 8, characterized in that: The balance adjustment further includes: adjusting the charging power of other charging output ports according to the excess charging power quota in combination with the charging protocol of each charging output port.

10. A computer-readable storage medium storing computer-executable instructions, characterized in that: When the computer executable instructions are executed by the control processor, the charging management method for multi-output port fast charging as described in any one of claims 4-9 is implemented.

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