Mobile power supply control circuit and device supporting multi-port output

Abstract

The utility model discloses a mobile power supply control circuit and device supporting multi-port output. The mobile power supply control circuit comprises a main control module, a first mobile power supply management module, a first buck-boost driving module, a second buck-boost driving module, a first voltage input and output interface module, a second voltage input and output interface module, a battery protection module with an equalization function and a battery pack. The main control module is electrically connected with the first mobile power supply management module, the first mobile power supply management module is electrically connected with the first boost-buck driving module, the second boost-buck driving module and the battery protection module with the equalization function, and the battery protection module with the equalization function is electrically connected with the battery pack; the first buck-boost driving module is electrically connected with the first voltage input and output interface module, and the second buck-boost driving module is electrically connected with the second voltage input and output interface module. According to the utility model, charging and discharging control of the mobile power supply with multi-charging-port output can be realized, user experience is improved, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power supplies, and in particular to a mobile power supply control circuit and device supporting multi-port output. Background Art

[0002] A mobile power bank is a portable charger that can be carried by an individual and can store electrical energy. It is mainly used to charge handheld mobile devices and other consumer electronic products (such as wireless phones and laptops), especially in situations where there is no external power supply. The main components of a mobile power bank include batteries for storing electrical energy and circuits for stabilizing the output voltage. Most mobile power banks come with a charger to charge the built-in battery.

[0003] In the prior art, mobile power supplies are generally equipped with charging cables, and different types of mobile phone charging interfaces are provided on the charging cables. Although such mobile power supplies eliminate the trouble of not bringing charging cables, they are limited to charging mobile phones, and have small capacity and slow charging speed; or, existing mobile power supplies are only provided with one charging interface, and users connect the charging interface to the device to be charged through a cable, and then the load can be powered by the mobile power supply. The number of charging interfaces of such mobile power supplies is very limited, and only one device can be charged at a time. Moreover, the charging interface type is single, the usage scenarios are limited, and the user experience is not high. Therefore, inventing a reliable mobile power control circuit and device that supports multi-port output is an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] The purpose of this application is to provide a mobile power control circuit and device that supports multi-port output. In this solution, it is possible to realize the charging and discharging control of a mobile power supply with simultaneous output from multiple charging ports, thereby improving user experience and having high reliability.

[0005] In order to solve the above technical problems, the present application provides a mobile power control circuit supporting multi-port output, including a main control module, a first mobile power management module, a first buck-boost driving module, a second buck-boost driving module, a first voltage input and output interface module, a second voltage input and output interface module, a battery protection module with a balancing function, and a battery pack;

[0006] The main control module is electrically connected to the first mobile power management module, the first mobile power management module is electrically connected to the first buck-boost driving module, the second buck-boost driving module and the battery protection module with balancing function respectively, and the battery protection module with balancing function is electrically connected to the battery pack;

[0007] The first buck-boost driving module is electrically connected to the first voltage input-output interface module, and the second buck-boost driving module is electrically connected to the second voltage input-output interface module.

[0008] Preferably, the mobile power control circuit supporting multi-port output further includes a second mobile power management module, a third buck-boost driving module and a third voltage input and output interface module;

[0009] The second mobile power management module is electrically connected to the first mobile power management module, the battery protection module with equalization function and the third buck-boost driving module respectively, and the third buck-boost driving module is electrically connected to the third voltage input-output interface module.

[0010] Preferably, the mobile power control circuit supporting multi-port output further includes a display module;

[0011] The display module is electrically connected to the main control module.

[0012] Preferably, the mobile power control circuit supporting multi-port output further includes a key switch module;

[0013] The key switch module is electrically connected to the main control module.

[0014] Preferably, the first mobile power management module has a built-in QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

[0015] Preferably, the second mobile power management module has a built-in QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

[0016] Preferably, the first buck-boost driving module comprises a boost switch unit, a buck switch unit and an inductive energy storage unit;

[0017] The inductive energy storage unit is electrically connected to the boost switch unit and the buck switch unit respectively, the boost switch unit is electrically connected to the first mobile power management module, the buck switch unit and the battery pack respectively, and the buck switch unit is electrically connected to the first mobile power management module and the battery pack respectively.

[0018] Preferably, the first voltage input-output interface module is configured as a TYPEC interface.

[0019] Preferably, the second voltage input and output interface module is configured as a USB-A interface.

[0020] In order to solve the above technical problems, the present application provides a mobile power control device supporting multi-port output, including the mobile power control circuit supporting multi-port output.

[0021] The utility model discloses a mobile power supply control circuit and device supporting multiple output ports, which has the following beneficial effects. The mobile power supply control circuit supporting multiple output ports disclosed by the utility model includes: a main control module, a first mobile power supply management module, a first buck-boost driving module, a second buck-boost driving module, a first voltage input-output interface module, a second voltage input-output interface module, a battery protection module with a balancing function, and a battery pack; the main control module is electrically connected to the first mobile power supply management module, the first mobile power supply management module is electrically connected to the first buck-boost driving module, the second buck-boost driving module, and the battery protection module with a balancing function, respectively, and the battery protection module with a balancing function is electrically connected to the battery pack; the first buck-boost driving module is electrically connected to the first voltage input-output interface module, and the second buck-boost driving module is electrically connected to the second voltage input-output interface module. Therefore, the utility model can realize the charging and discharging control of the mobile power supply with multiple charging ports, improve the user experience, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0023] Figure 1 The utility model is a schematic block diagram of a mobile power control circuit supporting multiple output ports according to a preferred embodiment of the utility model.

[0024] Figure 2 The utility model is a schematic block diagram of a mobile power control circuit supporting multiple output ports according to a preferred embodiment of the utility model.

[0025] Figure 3 The utility model is a circuit diagram of a key switch module of a mobile power control circuit supporting multiple output ports according to a preferred embodiment of the utility model.

[0026] Figure 4 It is a power principle diagram of a first mobile power management module of a mobile power control circuit supporting multi-port outputs in a preferred embodiment of the utility model.

[0027] Figure 5 It is a circuit schematic diagram of a first buck-boost driving module of a mobile power control circuit supporting multi-port outputs in a preferred embodiment of the utility model.

[0028] Figure 6 It is a circuit schematic diagram of a second buck-boost driving module of a mobile power control circuit supporting multi-port outputs in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0029] The core of this application is to provide a mobile power control circuit and device that supports multi-port output. In this solution, it is possible to realize the charging and discharging control of a mobile power supply with simultaneous output from multiple charging ports, thereby improving user experience and having high reliability.

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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.

[0031] See also Figure 1 , Figure 1 A schematic block diagram of a mobile power control circuit supporting multi-port output provided by the present application, including a main control module 1, a first mobile power management module 2, a first buck-boost drive module 3, a second buck-boost drive module 4, a first voltage input and output interface module 5, a second voltage input and output interface module 6, a battery protection module with balancing function 7 and a battery pack 8;

[0032] The main control module 1 is electrically connected to the first mobile power management module 2, the first mobile power management module 2 is electrically connected to the first buck-boost driving module 3, the second buck-boost driving module 4 and the battery protection module 7 with balancing function, and the battery protection module 7 with balancing function is electrically connected to the battery pack 8;

[0033] The first buck-boost driving module 3 is electrically connected to the first voltage input-output interface module 5 , and the second buck-boost driving module 4 is electrically connected to the second voltage input-output interface module 6 .

[0034] In the prior art, mobile power supplies are generally equipped with charging cables, which are equipped with different types of mobile phone charging interfaces. Although such mobile power supplies eliminate the trouble of not bringing charging cables, they are limited to charging mobile phones, and have small capacity and slow charging speed. Alternatively, existing mobile power supplies only have one type of charging interface, and users connect the charging interface to the device to be charged through a cable, and the load can be powered by the mobile power supply. The number of charging interfaces of such mobile power supplies is very limited, and only one device can be charged at a time. Moreover, the type of charging interface is single, the usage scenarios are limited, and the user experience is not high.

[0035] In response to the above-mentioned shortcomings, in this application, the charging and discharging control of a mobile power supply with multiple charging ports is realized through the cooperation of a main control module 1, a first mobile power management module 2, a first buck-boost driving module 3, a second buck-boost driving module 4, a first voltage input and output interface module 5, a second voltage input and output interface module 6, a battery protection module with balancing function 7 and a battery pack 8.

[0036] Specifically, in this embodiment, the main control module 1 manages the charge and discharge of the battery pack 8 through the first mobile power management module 2, and adjusts the output voltage through the first buck-boost driving module 3 and the second buck-boost driving module 4 to meet the voltage requirements of different devices. The first voltage input and output interface module 5 and the second voltage input and output interface module 6 serve as the connection interface of the device, and output the adjusted voltage to the device. At the same time, the first voltage input and output interface module 5 and the second voltage input and output interface module 6 are used to connect with the adapter to charge the mobile power supply. The battery protection module 7 with balancing function is used to protect the battery pack 8 to ensure its safe and stable operation.

[0037] Specifically, in this embodiment, the main control module 1 is used to coordinate system operations, process input signals, monitor system status, and send control signals as needed.

[0038] Specifically, in this embodiment, the first mobile power management module 2 is used to manage the charging and discharging process of the power supply to ensure the stability and efficiency of the power supply.

[0039] Specifically, in this embodiment, the first buck-boost driving module 3 and the second buck-boost driving module 4 are used to adjust the output voltage as needed. When the voltage of the battery pack 8 is higher than the required output voltage, the first buck-boost driving module 3 and the second buck-boost driving module 4 perform voltage reduction; conversely, when the voltage of the battery pack 8 is lower than the required output voltage, the first buck-boost driving module 3 and the second buck-boost driving module 4 perform voltage increase.

[0040] Specifically, in this embodiment, the first voltage input-output interface module 5 and the second voltage input-output interface module 6 serve as external interfaces of the mobile power source, and are used to connect to an external charging device or to connect to an adapter.

[0041] Specifically, in this embodiment, the battery protection module 7 with balancing function is electrically connected to the battery pack 8 to protect the battery from overcharging, overdischarging, overheating, etc. At the same time, the battery protection module 7 with balancing function has a balancing function to ensure that each battery cell in the battery pack can maintain the same voltage, thereby improving the overall performance and life of the battery pack.

[0042] Specifically, in this embodiment, the battery pack 8 is the energy storage part of the mobile power supply, and is usually composed of a plurality of lithium battery cells.

[0043] In summary, the present application provides a mobile power control circuit supporting multi-port output, in this solution, including a main control module 1, a first mobile power management module 2, a first buck-boost drive module 3, a second buck-boost drive module 4, a first voltage input-output interface module 5, a second voltage input-output interface module 6, a battery protection module with equalization function 7 and a battery pack 8; the main control module 1 is electrically connected to the first mobile power management module 2, the first mobile power management module 2 is electrically connected to the first buck-boost drive module 3, the second buck-boost drive module 4 and the battery protection module with equalization function 7 respectively, the battery protection module with equalization function 7 is electrically connected to the battery pack 8; the first buck-boost drive module 3 is electrically connected to the first voltage input-output interface module 5, the second buck-boost drive module 4 is electrically connected to the second voltage input-output interface module 6. Therefore, the utility model can realize the charging and discharging control of the mobile power supply with multi-charging port output, improve the user experience, and has high reliability.

[0044] Based on the above embodiments:

[0045] Please refer to Figure 2 , Figure 2 A schematic block diagram of a mobile power control circuit supporting multiple output ports provided in the present application.

[0046] As a preferred embodiment, a mobile power control circuit supporting multi-port output further includes a second mobile power management module 9, a third buck-boost driving module 10 and a third voltage input-output interface module 11;

[0047] The second mobile power management module 9 is electrically connected to the first mobile power management module 2 , the battery protection module with balancing function 7 and the third buck-boost driving module 10 , respectively. The third buck-boost driving module 10 is electrically connected to the third voltage input-output interface module 11 .

[0048] Specifically, in this embodiment, the second mobile power management module 9 cooperates with the first mobile power management module 2, so that the mobile power can manage more power outputs at the same time. The second mobile power management module 9 is electrically connected to the first mobile power management module 2, the battery protection module with balancing function 7 and the third buck-boost driving module 10, and can independently control a group of battery cells or output interfaces, thereby improving the flexibility and reliability of the power supply.

[0049] Specifically, in this embodiment, the third buck-boost driving module 10 is connected to the second mobile power management module 9, and is used to drive the third voltage input and output interface module 11. The third buck-boost driving module 10 is similar to the first and second buck-boost driving modules, that is, the output voltage is adjusted as needed to ensure that the output voltage is stable and meet the voltage requirements of different devices.

[0050] Specifically, in this embodiment, the third voltage input and output interface module 11 is used as a new output interface to connect another device. In this way, the mobile power supply can provide power to multiple devices at the same time, thereby improving the efficiency and convenience of the mobile power supply.

[0051] As a preferred embodiment, a mobile power control circuit supporting multi-port output further includes a display module 12;

[0052] The display module 12 is electrically connected to the main control module 1 .

[0053] Specifically, the display module 12 is used to display the working status of the mobile power supply to the user, including the current power level, charging status, fast charging status, etc. The user can learn the real-time information of the mobile power supply through the display module 12 .

[0054] Please refer to Figure 3 , Figure 3 A circuit schematic diagram of a key switch module provided in this application.

[0055] As a preferred embodiment, a mobile power control circuit supporting multi-port output further includes a key switch module;

[0056] The key switch module is electrically connected to the main control module 1 .

[0057] Specifically, in this embodiment, the key switch module is used to implement functional control of the power switch, fast charging mode activation, mode switching, etc. of the mobile power supply, which is not specifically limited here.

[0058] Please refer to Figure 4 , Figure 4 A power supply schematic diagram of a first mobile power management module provided in this application.

[0059] As a preferred embodiment, the first mobile power management module 2 has a built-in QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

[0060] As a preferred embodiment, the second mobile power management module 9 has a built-in QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

[0061] It is worth noting that the first mobile power management module 2 and the second mobile power management module 9 of the present application have built-in QC fast charging protocol control units and PD fast charging protocol control units, so that the mobile power of the present application can provide fast charging for a variety of devices, regardless of which fast charging standard the device supports, it can achieve efficient charging performance. In addition, the fast charging protocol control unit dynamically adjusts the output power according to the charging needs of the device, which not only improves the charging speed, but also optimizes the energy conversion efficiency and reduces energy loss.

[0062] Specifically, by real-time monitoring of current, voltage and temperature, the fast charging management module of the present application can ensure that the charging process is carried out within a safe range, reduce the risks of overcurrent, overvoltage and overheating, and improve the safety of users using mobile power supplies.

[0063] Please refer to Figure 5 , Figure 5 A circuit schematic diagram of a first buck-boost driving module provided in the present application.

[0064] As a preferred embodiment, the first buck-boost driving module 3 includes a boost switch unit 31, a buck switch unit 32 and an inductive energy storage unit 33;

[0065] The inductive energy storage unit 33 is electrically connected to the boost switch unit 31 and the buck switch unit 32 respectively; the boost switch unit 31 is electrically connected to the first mobile power management module 2, the buck switch unit 32 and the battery pack 8 respectively; the buck switch unit 32 is electrically connected to the first mobile power management module 2 and the battery pack 8 respectively.

[0066] Specifically, when the battery voltage of the mobile power source is lower than the charging voltage required by the external device, the boost switch unit 31 controls the output voltage of the battery pack to be boosted.

[0067] When the battery voltage of the mobile power source is higher than the charging voltage required by the external device, the step-down switch unit 32 steps down the output voltage of the battery pack.

[0068] Specifically, in the boost switch unit 31, the MOS tube is used as a switch, connected between the battery pack and the inductor energy storage unit 33. When the MOS tube is turned on, the battery pack charges the inductor, the current rises through the inductor, and the inductor stores energy. When the MOS tube is turned off, the inductor releases energy, and the current flows to the output end through the diode, charging the battery at the same time. Since the current of the inductor cannot change suddenly, the voltage at the output end will be higher than the battery voltage.

[0069] Specifically, in the step-down switch unit 32, the MOS tube is also used as a switch, connected between the battery pack and the inductor. When the MOS tube is turned on, the battery supplies power to the inductor and the output end, and the inductor stores energy. When the MOS tube is turned off, the inductor releases energy and continues to supply power to the output end through the diode. Since the current of the inductor cannot change suddenly, the voltage at the output end will be lower than the battery voltage.

[0070] Understandably, see Figure 5 , HDRV (High Drive) signal and LDRV (Low Drive) signal usually refer to two signals that control the switch of MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). These signals are used to drive the conduction and cutoff of MOSFET, thereby realizing the function of buck-boost converter.

[0071] As a preferred embodiment, the first voltage input-output interface module 5 is configured as a TYPEC interface.

[0072] As a preferred embodiment, the second voltage input and output interface module 6 is configured as a USB-A interface. In another embodiment, the voltage input and output interface module can also be configured as a lightning interface, etc., which is not specifically limited here.

[0073] Specifically, in this embodiment, the user can select a suitable interface for charging according to his or her device, and can also use the data transmission function of these interfaces. In addition, the mobile power supply of the present application supports charging and discharging at the same time, and the first voltage input and output interface module 5 and the second voltage input and output interface module 6 can charge the battery at the same time, with a maximum charging power of 200W.

[0074] Please refer to Figure 6 , Figure 6 A circuit schematic diagram of a second buck-boost driving module provided in the present application.

[0075] Specifically, in this embodiment, the second buck-boost driving module is implemented through a BUCK circuit. It is understandable that the BUCK circuit converts the input voltage into a lower output voltage and transmits it to the external charging device through the USB-A interface. The BUCK circuit is based on the fast switching of the switch tube, and adjusts the output voltage by controlling the conduction and shutdown of the switch tube.

[0076] The present application also provides a mobile power control device supporting multi-port output, including a mobile power control circuit supporting multi-port output.

[0077] For an introduction to a mobile power control circuit supporting multi-port output provided in the present application, please refer to the above embodiments, and the present application will not go into details here.

[0078] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0079] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile power control circuit supporting multiple output ports, characterized in that: It includes a main control module, a first mobile power management module, a first buck-boost driving module, a second buck-boost driving module, a first voltage input and output interface module, a second voltage input and output interface module, a battery protection module with a balancing function, and a battery pack; The main control module is electrically connected to the first mobile power management module, the first mobile power management module is electrically connected to the first buck-boost driving module, the second buck-boost driving module and the battery protection module with balancing function respectively, and the battery protection module with balancing function is electrically connected to the battery pack; The first buck-boost driving module is electrically connected to the first voltage input-output interface module, and the second buck-boost driving module is electrically connected to the second voltage input-output interface module.

2. A mobile power supply control circuit supporting multiple output ports according to claim 1, characterized in that: The mobile power control circuit supporting multi-port output also includes a second mobile power management module, a third buck-boost driving module and a third voltage input and output interface module; The second mobile power management module is electrically connected to the first mobile power management module, the battery protection module with equalization function and the third buck-boost driving module respectively, and the third buck-boost driving module is electrically connected to the third voltage input-output interface module.

3. A mobile power supply control circuit supporting multiple output ports according to claim 1, characterized in that: The mobile power control circuit supporting multiple output ports also includes a display module; The display module is electrically connected to the main control module.

4. The mobile power control circuit supporting multiple output ports according to claim 1, characterized in that: The mobile power control circuit supporting multiple output ports also includes a key switch module; The key switch module is electrically connected to the main control module.

5. The mobile power control circuit supporting multiple output ports according to claim 1, characterized in that: The first mobile power management module has a built-in QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

6. The mobile power control circuit supporting multiple output ports according to claim 2, characterized in that: The second mobile power management module has a built-in QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

7. The mobile power control circuit supporting multiple output ports according to claim 1, characterized in that: The first buck-boost driving module includes a boost switch unit, a buck switch unit and an inductive energy storage unit; The inductive energy storage unit is electrically connected to the boost switch unit and the buck switch unit respectively, the boost switch unit is electrically connected to the first mobile power management module, the buck switch unit and the battery pack respectively, and the buck switch unit is electrically connected to the first mobile power management module and the battery pack respectively.

8. The mobile power control circuit supporting multiple output ports according to claim 1, characterized in that: The first voltage input and output interface module is configured as a TYPEC interface.

9. The mobile power control circuit supporting multiple output ports according to claim 1, characterized in that: The second voltage input and output interface module is configured as a USB-A interface.

10. A mobile power control device supporting multiple output ports, characterized in that: A mobile power control circuit supporting multi-port outputs comprising any one of claims 1 to 9.

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