Power distribution circuit and electronic device

Abstract

This invention relates to the field of charging technology and discloses a power distribution circuit and electronic device. The power distribution circuit includes a power conversion circuit, a power sharing control circuit, and a power output circuit. The power conversion circuit includes at least two power conversion modules, and the power output circuit includes at least one power output module. When an external device is detected connected to a power output module, the power sharing control circuit obtains the demand parameters corresponding to the connected external device. Based on the demand parameters and the shared output power provided by each power conversion module, the power output power of the power output module is controlled to be supplied to the external device. The demand parameters include a communication protocol and the required power. The sum of the shared output power of all power conversion modules equals the required power of the external device. Therefore, implementing this invention enables dynamic adjustment of output power, improving the flexibility and reliability of output power adjustment while reducing circuit development costs.

Description

Technical Field

[0001] This invention relates to the field of charging technology, and more particularly to a power distribution circuit and electronic device. Background Technology

[0002] Currently, with the widespread use of portable electronic devices, it is becoming increasingly common for multiple electronic devices to require charging simultaneously, leading to the growing application of multi-port power supplies. Multi-port power supplies on the market typically feature independently configured rated power for each output port, thus accommodating the charging needs of different devices.

[0003] However, in existing technologies, the rated output power of each output port of a multi-port power supply product is fixed, and the power provided by the back-end modules corresponding to each port cannot be superimposed or shared. Therefore, if a high-power external device needs to be connected, at least one port must be set as a high-power port, such as setting one port to 50W and another port to 100W. Since the output power cannot be superimposed, the internal components of the product must be selected and laid out according to the independent maximum rated power of each output port. The components required for high-power output are more expensive, and more layout space is required, resulting in an increase in product size. In addition, since the power ratings of different output ports are inconsistent, the local temperature rise of high-power ports is higher, resulting in uneven temperature rise during operation and easily increasing heat dissipation costs.

[0004] Therefore, it is particularly important to propose a technical solution that can dynamically adjust the output power, thereby improving the flexibility and reliability of output power adjustment while reducing circuit development costs. Summary of the Invention

[0005] This invention provides a power distribution circuit and electronic device that can dynamically adjust the output power, thereby improving the flexibility and reliability of output power adjustment while reducing circuit development costs.

[0006] To address the aforementioned technical problems, the first aspect of this invention discloses a power distribution circuit, comprising a power conversion circuit, a power sharing control circuit, and a power output circuit. The power conversion circuit includes at least two power conversion modules, and the power output circuit includes at least two power output modules, wherein: The output terminal of each power conversion module is electrically connected to one of the first power output control terminals of the power sharing control circuit, and the second power output control terminal of the power sharing control circuit corresponding to the first power output control terminal is electrically connected to the input terminal of one of the power output modules; the signal transmission terminal of each power output module is electrically connected to one of the signal transmission terminals of the power sharing control circuit; the input terminal of each power conversion module is used to electrically connect to a power supply; the external connection terminal of each power output module is used to electrically connect to an external device. The power sharing control circuit is used to obtain the demand parameters corresponding to the external device when at least one of the power output modules is detected to be connected to an external device; and to control the output power output by the power output module to the external device according to the demand parameters and the shared output power provided by each power conversion module; wherein the demand parameters include the communication protocol and the demand power; and wherein the sum of the shared output power of all the power conversion modules is equal to the demand power of the external device.

[0007] As an optional implementation, in the first aspect of the present invention, when the power conversion circuit includes two power conversion modules, the power conversion circuit includes a first power conversion module and a second power conversion module, wherein: The output terminal of the first power conversion module is electrically connected to one of the first power output control terminals of the power sharing control circuit; the input terminal of the first power conversion module is used to electrically connect to the first power supply. The output terminal of the second power conversion module is electrically connected to another first power output control terminal of the power sharing control circuit; the input terminal of the second power conversion module is used to electrically connect to the second power supply.

[0008] As an optional implementation, in the first aspect of the present invention, when the power output circuit includes two power output modules, the power output circuit includes a first power output module and a second power output module, wherein: The input terminal of the first power output module is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the first power conversion module; the signal transmission terminal of the first power output module is electrically connected to the first signal transmission terminal of the power sharing control circuit; the external connection terminal of the first power output module is used to electrically connect to a first external device. The input terminal of the second power output module is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the second power conversion module; the signal transmission terminal of the second power output module is electrically connected to the second signal transmission terminal of the power sharing control circuit; and the external connection terminal of the second power output module is used to electrically connect to a second external device.

[0009] As an optional implementation, in the first aspect of the present invention, the power sharing control circuit includes a main control module, an output path switching module, and an output mode control module, wherein: The first control terminal of the main control module is electrically connected to the first control terminal of the output path switching module; the first conduction control terminal of the output path switching module and the first parallel terminal of the output mode control module are respectively electrically connected to the output terminal of the first power conversion module; the first bus terminal of the main control module and the second conduction control terminal of the output path switching module are respectively electrically connected to the input terminal of the first power output module. The second control terminal of the main control module is electrically connected to the second control terminal of the output path switching module; the third conduction control terminal of the output path switching module and the second parallel terminal of the output mode control module are respectively electrically connected to the output terminal of the second power conversion module; the second bus terminal of the main control module and the fourth conduction control terminal of the output path switching module are respectively electrically connected to the input terminal of the second power output module. The third control terminal of the main control module is electrically connected to the control terminal of the output mode control module; The main control module is used to determine a power output path based on the connected external device when at least one of the power output modules is detected to be connected to an external device; and to control the path corresponding to the power output path in the output path switching module to be turned on based on the power output path; wherein, the power output path includes a first output path corresponding to the first power output module and / or a second output path corresponding to the second power output module; In addition, the system obtains the demand parameters corresponding to each of the external devices connected; determines the power output mode based on the demand parameters and the power output path; when the power output mode is a power sharing output mode, it outputs a first mode control drive signal to the output mode control module to control the output mode control module to be turned on, thereby realizing the parallel output of the first power output module and the second power output module. Furthermore, based on the conduction status of the output path switching module and the conduction status of the output mode control module, and based on the shared output power provided by all the power conversion modules, the output power output by each power output module to the external device is controlled.

[0010] As an optional implementation, in the first aspect of the present invention, the first voltage feedback terminal of the main control module is electrically connected to the voltage feedback terminal of the first power conversion module; the second voltage feedback terminal of the main control module is electrically connected to the voltage feedback terminal of the second power conversion module. The first detection terminal of the main control module is electrically connected to the output terminal of the first power conversion module; the second detection terminal of the main control module is electrically connected to the output terminal of the second power conversion module. The main control module is also used to monitor the output current parameters and output voltage parameters corresponding to each power conversion module.

[0011] As an optional implementation, in a first aspect of the present invention, the output path switching module includes a first path switching unit and a second path switching unit, wherein: The first terminal of the first path switching unit is electrically connected to the first control terminal of the main control module; the second terminal of the first path switching unit is electrically connected to the output terminal of the first power conversion module; and the third terminal of the first path switching unit is electrically connected to the input terminal of the first power output module. The first end of the second path switching unit is electrically connected to the second control end of the main control module; the second end of the second path switching unit is electrically connected to the output end of the second power conversion module; and the third end of the second path switching unit is electrically connected to the input end of the second power output module.

[0012] As an optional implementation, in the first aspect of the present invention, the output mode control module includes a first conduction control unit and a second conduction control unit, wherein: The first terminal of the first conduction control unit and the first terminal of the second conduction control unit are both electrically connected to the third control terminal of the main control module; the second terminal of the first conduction control unit is electrically connected to the second terminal of the second conduction control unit; the third terminal of the first conduction control unit is electrically connected to the output terminal of the first power conversion module; and the third terminal of the second conduction control unit is electrically connected to the output terminal of the second power conversion module.

[0013] As an optional implementation, in a first aspect of the present invention, the first power output module includes a first interface, and the second power output module includes a second interface, wherein: Each of the power output modules has its signal transmission terminal electrically connected to one of the signal transmission terminals of the power sharing control circuit, specifically including: the configuration terminal of the first interface is electrically connected to the first configuration terminal of the power sharing control circuit; the data terminal of the first interface is electrically connected to the first data terminal of the power sharing control circuit; and the configuration terminal of the second interface is electrically connected to the second configuration terminal of the power sharing control circuit; the data terminal of the second interface is electrically connected to the second data terminal of the power sharing control circuit. Additionally, the bus terminal of the first interface is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the first power conversion module; the external connection terminal of the first interface is used to electrically connect to a first external device; and the ground terminal of the first interface is used for grounding. The bus terminal of the second interface is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the second power conversion module; the external connection terminal of the second interface is used to electrically connect to a second external device; and the ground terminal of the second interface is used for grounding.

[0014] As an optional implementation, in the first aspect of the invention, each power conversion module includes a DC-DC control unit and a power regulation unit, wherein for each power conversion module: The first terminal of the DC-DC control unit and the first terminal of the power conditioning unit are electrically connected to the power supply corresponding to the power conversion module; the second terminal of the DC-DC control unit is electrically connected to the second terminal of the power conditioning unit, the third terminal of the DC-DC control unit is electrically connected to the third terminal of the power conditioning unit, the fourth terminal of the DC-DC control unit is electrically connected to the fourth terminal of the power conditioning unit, the fifth terminal of the DC-DC control unit is electrically connected to the fifth terminal of the power conditioning unit, the sixth terminal of the DC-DC control unit is electrically connected to the sixth terminal of the power conditioning unit, and the seventh terminal of the DC-DC control unit is electrically connected to the seventh terminal of the power conditioning unit; the eighth terminal of the power conditioning unit is electrically connected to one of the first power output control terminals of the power sharing control circuit. The DC-DC control unit is used to output a drive signal to the power regulation unit after receiving the power conversion signal, so as to control the conduction / cutoff of each branch in the power regulation unit, thereby converting the received input voltage into a target voltage to obtain the shared output power corresponding to the power conversion signal.

[0015] A second aspect of the present invention discloses an electronic device, the electronic device comprising a device body and a power distribution circuit as disclosed in any of the first aspects.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Implementing this invention provides a power distribution circuit with a simple structure and easy implementation. This circuit includes a power conversion circuit, a power sharing control circuit, and a power output circuit. The power conversion circuit includes at least two power conversion modules, and the power output circuit includes at least two power output modules. When an external device is detected connected to a power output module, the circuit, through the power sharing control circuit, obtains the demand parameters corresponding to the connected external device. Based on the demand parameters and the shared output power provided by each power conversion module, it controls the output power of the power output module to the external device. The sum of the shared output power of all power conversion modules equals the demand power of the external device. This allows for dynamic adjustment of the output power provided to the external device by sharing the output power of multiple power conversion modules. This improves the flexibility and reliability of output power adjustment, reduces circuit development costs due to its simple structure, and reduces heat dissipation costs by making the circuit temperature distribution more uniform through power shunting, thus lowering overall circuit development costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a power distribution circuit disclosed in an embodiment of the present invention; Figure 2 This is a schematic diagram of another power distribution circuit disclosed in an embodiment of the present invention; Figure 3 This is a schematic diagram of another power distribution circuit disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a first power conversion module disclosed in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a second power conversion module disclosed in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a main control module, an output path switching module, and a first power output module disclosed in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of an output mode control module disclosed in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a second power output module disclosed in an embodiment of the present invention; Figure 9This is a schematic diagram of a power distribution circuit disclosed in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise explicitly specified and limited, the term "electrical connection" in the specification, claims, and accompanying drawings of this invention should be interpreted broadly. For example, it can refer to a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical-electrical connection, or a connection capable of communication; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two elements or the interaction between two elements. Furthermore, the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Example 1 Please see Figure 1 , Figure 1 This is a schematic diagram of a power distribution circuit disclosed in an embodiment of the present invention. This circuit can be applied to electronic devices with charging functions. Optionally, the electronic device can be a car charger (i.e., a vehicle charger), a power bank, or an AC-DC (alternating current to direct current) charger; the present invention does not limit this. For example, this circuit can be specifically applied to the secondary dual DC module circuit output of a multi-port output (e.g., dual-port output) power bank or AC-DC charger; the present invention does not limit this. Figure 1 As shown, the power distribution circuit may include a power conversion circuit 10, a power sharing control circuit 20, and a power output circuit 30. The power conversion circuit 10 includes at least two power conversion modules, and the power output circuit 30 includes at least two power output modules, wherein: The output terminal of each power conversion module is electrically connected to one of the first power output control terminals of the power sharing control circuit 20, and the second power output control terminal of the power sharing control circuit 20 corresponding to the first power output control terminal is electrically connected to the input terminal of one of the power output modules; the signal transmission terminal of each power output module is electrically connected to one of the signal transmission terminals of the power sharing control circuit 20; the input terminal of each power conversion module is used to electrically connect to the power supply; and the external connection terminal of each power output module is used to electrically connect to external devices.

[0022] The power sharing control circuit 20 is used to obtain the demand parameters corresponding to the connected external device when at least one power output module is detected to be connected to an external device; and to control the output power of the power output module to the external device according to the demand parameters and the shared output power provided by each power conversion module.

[0023] The required parameters may include the communication protocol and the required power; optionally, the communication protocol may include, but is not limited to, PD (USB Power Delivery) protocol and / or QC (Quick Charge) protocol, which are not limited in this embodiment of the invention; for example, the required power may be 100W, or other values, which are not limited in this embodiment of the invention.

[0024] In this embodiment, the sum of the shared output power of all power conversion modules equals the power requirement of the external device. For example, when only one external device is connected and the power requirement of that device is 100W, the shared output power provided by each power conversion module can be 50W, so that 100W can be output to the external device through the power output module electrically connected to the external device. This embodiment of the invention is not limited to this.

[0025] As can be seen, the embodiments of the present invention provide a power distribution circuit with a simple structure and easy implementation. The circuit includes a power conversion circuit, a power sharing control circuit, and a power output circuit. The power conversion circuit includes at least two power conversion modules, and the power output circuit includes at least two power output modules. When the power output module is detected to be connected to an external device, the circuit can obtain the demand parameters corresponding to the connected external device through the power sharing control circuit, and control the output power of the power output module to the external device according to the demand parameters and the shared output power provided by each power conversion module. The sum of the shared output power of all power conversion modules is equal to the demand power of the external device. In this way, by sharing the output power of multiple power conversion modules, the output power provided to the external device can be dynamically adjusted. This improves the flexibility and reliability of output power adjustment, reduces the circuit development cost due to the simple circuit structure, and reduces the heat dissipation cost of the circuit by making the circuit temperature distribution more uniform through power shunting, thereby reducing the development cost of the circuit.

[0026] In an optional embodiment, please refer to Figure 2 , Figure 2 This is a schematic diagram of another power distribution circuit disclosed in an embodiment of the present invention; optionally, such as Figure 2 As shown, when the power conversion circuit 10 includes two power conversion modules, the power conversion circuit 10 may include a first power conversion module 101 and a second power conversion module 102, wherein: The output terminal of the first power conversion module 101 is electrically connected to one of the first power output control terminals of the power sharing control circuit 20; the input terminal of the first power conversion module 101 is used to electrically connect to the first power supply. The output terminal of the second power conversion module 102 is electrically connected to another first power output control terminal of the power sharing control circuit 20; the input terminal of the second power conversion module 102 is used to electrically connect to the second power supply.

[0027] Optionally, the first power supply and the second power supply can be the same power supply or different power supplies; this embodiment of the invention does not impose any limitations.

[0028] As can be seen, this optional embodiment can set a first power conversion module and a second power conversion module in the power conversion circuit, and can subsequently superimpose the power output of the two power conversion modules, thereby improving the flexibility of power conversion and the flexibility of output power adjustment.

[0029] In an optional embodiment, each power conversion module may include a DC-DC control unit and a power regulation unit, wherein for each power conversion module: The first terminal of the DC-DC control unit and the first terminal of the power conditioning unit are electrically connected to the power supply corresponding to the power conversion module; the second terminal of the DC-DC control unit is electrically connected to the second terminal of the power conditioning unit, the third terminal of the DC-DC control unit is electrically connected to the third terminal of the power conditioning unit, the fourth terminal of the DC-DC control unit is electrically connected to the fourth terminal of the power conditioning unit, the fifth terminal of the DC-DC control unit is electrically connected to the fifth terminal of the power conditioning unit, the sixth terminal of the DC-DC control unit is electrically connected to the sixth terminal of the power conditioning unit, and the seventh terminal of the DC-DC control unit is electrically connected to the seventh terminal of the power conditioning unit; the eighth terminal of the power conditioning unit is electrically connected to one of the first power output control terminals of the power sharing control circuit 20. The DC-DC control unit is used to output a drive signal to the power conditioning unit after receiving the power conversion signal, so as to control the conduction / cut-off of each branch in the power conditioning unit, thereby converting the received input voltage into the target voltage to obtain the shared output power corresponding to the power conversion signal.

[0030] Optionally, the received input voltage may be higher or lower than the target voltage; this embodiment of the invention does not impose any limitation.

[0031] As can be seen, this optional embodiment can set up a DC-DC control unit and a power regulation unit in each power conversion module, which can more accurately convert the input voltage, thereby stabilizing the output target voltage, realizing wide-range voltage regulation and efficient power conversion, and thus helping to provide more stable shared output power to the downstream circuit, so as to improve the stability of the power output to external devices.

[0032] In this optional embodiment, please refer to Figure 3 , Figure 3 This is a schematic diagram of another power distribution circuit disclosed in an embodiment of the present invention; wherein, in order to more clearly illustrate... Figure 3 The structure of the power distribution circuit shown can be found in [reference]. Figures 4-8 , Figures 4-8 All Figure 3 A partial structural diagram.

[0033] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of a first power conversion module disclosed in an embodiment of the present invention; optionally, such as Figure 4As shown, the first power conversion module 101 may include a first DC-DC control unit 1011 and a first power regulation unit 1012; further optionally, the first DC-DC control unit 1011 may include a first DC-DC chip U2, and the first power regulation unit 1012 may include a first switching device M2, a second switching device M3, a third switching device M4, a fourth switching device M5, and a first inductor L1, wherein: The first terminal of the first DC-DC chip U2 and the first terminal of the first switching device M2 are electrically connected to the first power supply; the second terminal of the first DC-DC chip U2 is electrically connected to the second terminal of the first switching device M2, the third terminal of the first switching device M2 is electrically connected to the first terminal of the third switching device M4 and the first terminal of the first inductor L1, the third terminal of the first DC-DC chip U2 is also electrically connected to the first terminal of the first inductor L1, the fourth terminal of the first DC-DC chip U2 is electrically connected to the second terminal of the third switching device M4, and the third terminal of the third switching device M4 is grounded; the first terminal of the second switching device M3 is electrically connected to one of the first power output control terminals of the power sharing control circuit 20, the fifth terminal of the first DC-DC chip U2 is electrically connected to the second terminal of the second switching device M3, the third terminal of the second switching device M3 is electrically connected to the first terminal of the fourth switching device M5 and the second terminal of the first inductor L1, the sixth terminal of the first DC-DC chip U2 is also electrically connected to the second terminal of the first inductor L1, the second terminal of the fourth switching device M5 is electrically connected to the seventh terminal of the first DC-DC chip U2, and the third terminal of the fourth switching device M5 is grounded.

[0034] Specifically, the other electronic components included in the first power conversion module 101, the connection relationships between the electronic components, and the connection relationships between the electronic components and other circuit structures are detailed in [reference needed]. Figure 4 .

[0035] Similarly, please see Figure 5 , Figure 5 This is a schematic diagram of the structure of a second power conversion module disclosed in an embodiment of the present invention; optionally, such as Figure 5 As shown, the second power conversion module 102 may include a second DC-DC control unit 1021 and a second power regulation unit 1022; further optionally, the second DC-DC control unit 1021 may include a second DC-DC chip U3, and the second power regulation unit 1022 may include a fifth switching device M7, a sixth switching device M8, a seventh switching device M9, an eighth switching device M10, and a second inductor L2, wherein: The first terminal of the second DC-DC chip U3 and the first terminal of the fifth switching device M7 are electrically connected to the first power supply; the second terminal of the second DC-DC chip U3 is electrically connected to the second terminal of the fifth switching device M7, the third terminal of the fifth switching device M7 is electrically connected to the first terminal of the seventh switching device M9 and the first terminal of the second inductor L2, the third terminal of the second DC-DC chip U3 is also electrically connected to the first terminal of the second inductor L2, the fourth terminal of the second DC-DC chip U3 is electrically connected to the second terminal of the seventh switching device M9, and the third terminal of the seventh switching device M9 is used for grounding; the first terminal of the sixth switching device M8 is electrically connected to one of the first power output control terminals of the power sharing control circuit 20, the fifth terminal of the second DC-DC chip U3 is electrically connected to the second terminal of the sixth switching device M8, the third terminal of the sixth switching device M8 is electrically connected to the first terminal of the eighth switching device M10 and the second terminal of the second inductor L2, the sixth terminal of the second DC-DC chip U3 is also electrically connected to the second terminal of the second inductor L2, the second terminal of the eighth switching device M10 is electrically connected to the seventh terminal of the second DC-DC chip U3, and the third terminal of the eighth switching device M10 is used for grounding.

[0036] The other electronic components included in the second power conversion module 102, the connection relationships between the electronic components, and the connection relationships between the electronic components and other circuit structures are detailed in the following references. Figure 5 .

[0037] Optionally, the switching devices in this optional embodiment (e.g., first switching device M2, second switching device M3, third switching device M4, fourth switching device M5, fifth switching device M7, sixth switching device M8, seventh switching device M9, and eighth switching device M10) can be MOSFETs or other switching devices capable of controlling the on / off state of a circuit; this embodiment of the invention does not impose limitations. For example, taking the first switching device M2 as an example, when the first switching device M2 is an N-type MOSFET, such as... Figure 4 As shown, the first terminal of the first switching device M2 is the drain (D), the second terminal of the first switching device M2 is the gate (G), and the third terminal of the first switching device M2 is the source (S). This embodiment of the invention does not limit the specific terminal.

[0038] Alternatively, the aforementioned switching devices can be dual-channel low-power MOSFETs, and this embodiment of the invention is not limited thereto. This allows for high-power output by using common, readily available, and low-cost components such as dual-channel low-power MOSFETs, inductors, and buck-boost control chips, improving circuit feasibility and reducing development costs.

[0039] It is evident that by incorporating a DC-DC chip into the DC-DC control unit, the efficiency and accuracy of voltage conversion can be improved while reducing the size of electronic components, and the driving accuracy of the power regulation unit can also be enhanced. Furthermore, by incorporating four switching devices and one inductor into the power regulation unit, the flexibility of power regulation can be further improved.

[0040] In this optional embodiment, optionally, such as Figure 2 As shown, when the power output circuit 30 includes two power output modules, the power output circuit 30 may include a first power output module 301 and a second power output module 302, wherein: The input terminal of the first power output module 301 is electrically connected to the second power output control terminal of the power sharing control circuit 20, which corresponds to the first power conversion module 101; the signal transmission terminal of the first power output module 301 is electrically connected to the first signal transmission terminal of the power sharing control circuit 20; the external connection terminal of the first power output module 301 is used to electrically connect to a first external device. The input terminal of the second power output module 302 is electrically connected to the second power output control terminal of the power sharing control circuit 20, which corresponds to the second power conversion module 102; the signal transmission terminal of the second power output module 302 is electrically connected to the second signal transmission terminal of the power sharing control circuit 20; and the external connection terminal of the second power output module 302 is used to electrically connect to a second external device.

[0041] As can be seen, by setting a first power output module and a second power output module in the power output circuit, two different access paths can be provided to external devices, thereby enabling two single-port outputs or simultaneous dual-port outputs, adapting to power supply needs in multiple scenarios, and improving the flexibility of power supply to external devices; in addition, when a single port is working, it can share full power output through a parallel architecture, and when both ports are used simultaneously, it can still maintain stable operation of dual-path fast charging, adapting to power supply needs in multiple scenarios.

[0042] In this optional embodiment, please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of a main control module, an output path switching module, and a first power output module disclosed in an embodiment of the present invention; optionally, such as Figure 6 As shown, the first power output module 301 may include a first interface USB-C1; please refer to [link / reference]. Figure 8 , Figure 8 This is a schematic diagram of the structure of a second power output module disclosed in an embodiment of the present invention; optionally, such as Figure 8 As shown, the second power output module 302 includes a second interface USB-C2; wherein: Each power output module's signal transmission terminal is electrically connected to one of the signal transmission terminals of the power sharing control circuit 20, specifically including: the configuration terminal of the first interface USB-C1 (e.g., Figure 6 The first configuration terminal of the power-sharing control circuit 20 (CC1-1) shown is electrically connected to the first configuration terminal of the first interface USB-C1 (e.g., ...). Figure 6 The DP1 and DM1 shown are electrically connected to the first data terminal of the power sharing control circuit 20; and the configuration terminal of the second interface USB-C2 (as shown) is connected to the first data terminal of the power sharing control circuit 20. Figure 8 CC1 and CC2 (shown) are electrically connected to the second configuration terminal of the power sharing control circuit 20; the data terminal of the second interface USB-C2 (as shown) Figure 8 The D+ and D- terminals shown are electrically connected to the second data terminal of the power-sharing control circuit 20; And, the bus end of the first interface USB-C1 (such as...) Figure 6 The VBUS shown is electrically connected to the second power output control terminal of the power sharing control circuit 20, corresponding to the first power conversion module 101; the external connection terminal of the first interface USB-C1 is used for electrically connecting to the first external device; the ground terminal of the first interface USB-C1 (as shown) Figure 6 The PGND shown is used for grounding; The second interface, USB-C2, has a bus end (such as...). Figure 8 The VBUS shown is electrically connected to the second power output control terminal of the power sharing control circuit 20, corresponding to the second power conversion module 102; the external connection terminal of the second interface USB-C2 is used for electrically connecting to a second external device; the ground terminal of the second interface USB-C2 (as shown) Figure 8 The GND shown is used for grounding.

[0043] Optionally, the first interface USB-C1 and the second interface USB-C2 can be of the same type or different types; this embodiment of the invention does not impose any limitations.

[0044] Specifically, the other electronic components included in the first power output module 301, the connection relationships between the included electronic components, and the connection relationships between the included electronic components and other circuit structures are detailed in [reference needed]. Figure 6 For details regarding the other electronic components included in the second power output module 302, the connections between these components, and the connections between these components and other circuit structures, please refer to [the relevant documentation / reference needed]. Figure 8 .

[0045] It is evident that by setting a first interface in the first power output module and a second interface in the second power output module, the efficiency and reliability of communication with external devices can be improved, as well as the efficiency and reliability of power output to external devices.

[0046] In this optional embodiment, optionally, such as Figure 3 As shown, the power sharing control circuit 20 may include a main control module 201, an output path switching module 202, and an output mode control module 203, wherein: The first control terminal of the main control module 201 is electrically connected to the first control terminal of the output path switching module 202; the first conduction control terminal of the output path switching module 202 and the first parallel terminal of the output mode control module 203 are respectively electrically connected to the output terminal of the first power conversion module 101; the first bus terminal of the main control module 201 and the second conduction control terminal of the output path switching module 202 are respectively electrically connected to the input terminal of the first power output module 301. The second control terminal of the main control module 201 is electrically connected to the second control terminal of the output path switching module 202; the third conduction control terminal of the output path switching module 202 and the second parallel terminal of the output mode control module 203 are electrically connected to the output terminal of the second power conversion module 102, respectively; the second bus terminal of the main control module 201 and the fourth conduction control terminal of the output path switching module 202 are electrically connected to the input terminal of the second power output module 302, respectively. The third control terminal of the main control module 201 is electrically connected to the control terminal of the output mode control module 203.

[0047] The main control module 201 is used to determine the power output path according to the connected external device when at least one power output module is detected to be connected to an external device; and to control the path corresponding to the power output path in the output path switching module 202 to be turned on according to the power output path; wherein, the power output path includes the first output path corresponding to the first power output module 301 and / or the second output path corresponding to the second power output module 302. In addition, the main control module 201 is also used to obtain the demand parameters corresponding to each external device connected; determine the power output mode according to the demand parameters and the power output path; when the power output mode is the power sharing output mode, output a first mode regulation drive signal to the output mode control module 203 to control the output mode control module 203 to be turned on, thereby realizing the parallel output of the first power output module 301 and the second power output module 302. In addition, the main control module 201 is also used to control the output power of each power output module to external devices based on the path conduction status in the output path switching module 202 and the conduction status of the output mode control module 203, and based on the shared output power provided by all power conversion modules.

[0048] For example, assuming only the first power output module 301 is connected to the first external device, the power output path that needs to be connected includes the first output path; assuming only the second power output module 302 is connected to the second external device, the power output path that needs to be connected includes the second output path; assuming both the first power output module 301 and the second power output module 302 are connected to external devices, the power output path that needs to be connected includes the first output path and the second output path. This embodiment of the invention does not impose any limitations.

[0049] Optionally, the main control module 201 is also used to output a second mode control drive signal to the output mode control module 203 when the power output mode is not the power sharing output mode, so as to control the output mode control module 203 to be cut off. This embodiment of the invention does not limit this.

[0050] As can be seen, by setting a main control module, an output path switching module, and an output mode control module in the power sharing control circuit, when at least one power output module is detected to be connected to an external device, the main control module controls the path corresponding to the connected external device in the output path switching module to be turned on, and obtains the demand parameters corresponding to the external device. Based on the demand parameters and the power output path, the power output mode is determined. When the power output mode is the power sharing output mode, a first mode regulation drive signal is output to the output mode control module to turn on the output mode control module, thereby realizing the parallel output of the first power output module and the second power output module. Furthermore, the main control module controls the output power of each power output module to the external device based on the path switching module's conduction status and the output mode control module's conduction status, and based on the shared output power provided by all power conversion modules. This improves the efficiency and accuracy of power output path selection, as well as the efficiency and accuracy of power output mode determination, thus facilitating more efficient intelligent allocation of output power and improving the flexibility of output power adjustment.

[0051] In this optional embodiment, optionally, such as Figure 6 As shown, the first voltage feedback terminal of the main control module 201 is electrically connected to the voltage feedback terminal of the first power conversion module 101; the second voltage feedback terminal of the main control module 201 is electrically connected to the voltage feedback terminal of the second power conversion module 102. The first detection terminal of the main control module 201 is electrically connected to the output terminal of the first power conversion module 101; the second detection terminal of the main control module 201 is electrically connected to the output terminal of the second power conversion module 102. The main control module 201 is also used to monitor the output current and output voltage parameters corresponding to each power conversion module.

[0052] It is evident that by implementing current and voltage detection in the main control module circuit, the circuit's operation can be monitored in real time, which is beneficial for achieving functions such as voltage regulation and fault protection, thereby improving the circuit's operational stability and reliability.

[0053] In this optional embodiment, optionally, such as Figure 6 As shown, the main control module 201 may include a main control chip U1, wherein: The first control terminal of the main control chip U1 (e.g.) Figure 6 The first control terminal of the output path switching module 202 (GATE1) shown is electrically connected to the first bus terminal of the main control chip U1 (e.g., GATE1). Figure 6 The VBUS1 shown is electrically connected to the input terminal of the first power output module 301; the second control terminal of the main control chip U1 (as shown) is connected to the input terminal of the first power output module 301. Figure 6 The second control terminal of the output path switching module 202 (GATE2) shown is electrically connected to the second bus terminal of the main control chip U1 (e.g., GATE2). Figure 6 The VBUS2 shown is electrically connected to the input terminal of the second power output module 302; the third control terminal of the main control chip U1 (as shown) is connected to the input terminal of the second power output module 302. Figure 6 The control terminal of the output mode control module 203 (GATE3) shown is electrically connected; The first voltage feedback terminal of the main control chip U1 (e.g.) Figure 6 The FB1 shown is electrically connected to the voltage feedback terminal of the first power conversion module 101; the second voltage feedback terminal of the main control chip U1 (as shown) is connected to the voltage feedback terminal of the first power conversion module 101. Figure 6 As shown, FB2 is electrically connected to the voltage feedback terminal of the second power conversion module 102; the first current detection terminal and the second current detection terminal of the main control chip U1 (as shown) are connected to the voltage feedback terminal of the second power conversion module 102; Figure 6 The CSP1 and CSN1 shown are electrically connected to the output terminals of the first power conversion module 101; the third current detection terminal and the fourth current detection terminal of the main control chip U1 (as shown) are connected to the output terminals of the first power conversion module 101. Figure 6 The CSP2 and CSN2 shown are electrically connected to the output terminals of the second power conversion module 102.

[0054] Optionally, the main control module 201 may further include a first sampling resistor RS2 and a second sampling resistor RS4, wherein: The first terminal of the first sampling resistor RS2 is electrically connected to the first current detection terminal of the main control chip U1 and the output terminal of the first power conversion module 101; the second terminal of the first sampling resistor RS2 is electrically connected to the second current detection terminal of the main control chip U1, the first conduction control terminal of the output path switching module 202, and the first parallel terminal of the output mode control module 203. The first terminal of the second sampling resistor RS4 is electrically connected to the third current detection terminal of the main control chip U1 and the output terminal of the second power conversion module 102; the second terminal of the second sampling resistor RS4 is electrically connected to the fourth current detection terminal of the main control chip U1, the third conduction control terminal of the output path switching module 202, and the second parallel terminal of the output mode control module 203.

[0055] The specific details regarding the other electronic components included in the main control module 201, the connections between these electronic components, and the connections between these electronic components and other circuit structures are as follows: Figure 6 .

[0056] It is evident that by setting a main control chip in the main control module circuit, the efficiency and reliability of communication with external devices can be improved, while the control efficiency and accuracy of power sharing and distribution output can be enhanced, thereby further improving the flexibility and stability of power output.

[0057] In this optional embodiment, optionally, such as Figure 6 As shown, the output path switching module 202 may include a first path switching unit 2021 and a second path switching unit 2022, wherein: The first terminal of the first path switching unit 2021 is electrically connected to the first control terminal of the main control module 201; the second terminal of the first path switching unit 2021 is electrically connected to the output terminal of the first power conversion module 101; and the third terminal of the first path switching unit 2021 is electrically connected to the input terminal of the first power output module 301. The first end of the second path switching unit 2022 is electrically connected to the second control end of the main control module 201; the second end of the second path switching unit 2022 is electrically connected to the output end of the second power conversion module 102; and the third end of the second path switching unit 2022 is electrically connected to the input end of the second power output module 302.

[0058] When the first path switching unit 2021 is turned on, the first output path is turned on, and power can be output to the first external device connected to the first power output module 301; when the second path switching unit 2022 is turned on, the second output path is turned on, and power can be output to the second external device connected to the second power output module 302.

[0059] Further optional, such as Figure 6 As shown, the first path switching unit 2021 may include a ninth switching device M1, and the second path switching unit 2022 may include a tenth switching device M6, wherein: The first terminal of the ninth switching device M1 is electrically connected to the first control terminal of the main control module 201; the second terminal of the ninth switching device M1 is electrically connected to the output terminal of the first power conversion module 101; and the third terminal of the ninth switching device M1 is electrically connected to the input terminal of the first power output module 301. The first terminal of the tenth switching device M6 is electrically connected to the second control terminal of the main control module 201; the second terminal of the tenth switching device M6 is electrically connected to the output terminal of the second power conversion module 102; and the third terminal of the tenth switching device M6 is electrically connected to the input terminal of the second power output module 302.

[0060] Optionally, in this optional embodiment, the switching device (e.g., the ninth switching device M1, the tenth switching device M6) can be a MOSFET, or other switching devices capable of controlling the on / off state of a circuit; this embodiment of the invention is not limited thereto. For example, taking the ninth switching device M1 as an example, when the ninth switching device M1 is an N-type MOSFET, such as... Figure 6 As shown, the first terminal of the ninth switching device M1 is the gate (G), the second terminal of the ninth switching device M1 is the drain (D), and the third terminal of the ninth switching device M1 is the source (S). This embodiment of the invention is not limited.

[0061] As can be seen, by setting a first path switching unit and a second path switching unit in the output path switching module, a corresponding path switching unit can be set for each power output path, thereby more accurately and efficiently connecting the corresponding path according to the actual external device access situation, which is conducive to more precise control of power output.

[0062] In this optional embodiment, please refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of an output mode control module disclosed in an embodiment of the present invention; optionally, such as Figure 7 As shown, the output mode control module 203 may include a first conduction control unit 2031 and a second conduction control unit 2032, wherein: The first terminal of the first conduction control unit 2031 and the first terminal of the second conduction control unit 2032 are both electrically connected to the third control terminal of the main control module 201; the second terminal of the first conduction control unit 2031 is electrically connected to the second terminal of the second conduction control unit 2032; the third terminal of the first conduction control unit 2031 is electrically connected to the output terminal of the first power conversion module 101; and the third terminal of the second conduction control unit 2032 is electrically connected to the output terminal of the second power conversion module 102.

[0063] When the first conduction control unit 2031 and the second conduction control unit 2032 are turned on, the first power output module 301 and the second power output module 302 can be connected in parallel to output power and achieve power sharing.

[0064] Further optional, such as Figure 7 As shown, the first conduction control unit 2031 may include an eleventh switching device M11, the second conduction control unit 2032 may include a twelfth switching device M12, and the output mode control module 203 may also include a first resistor R48 and a second resistor R49, wherein: The first end of the second resistor R49 is electrically connected to the third control terminal of the main control module 201. The second end of the second resistor R49 is electrically connected to the first end of the eleventh switching device M11, the first end of the first resistor R48, and the first end of the twelfth switching device M12. The second end of the first resistor R48 is electrically connected to the second end of the eleventh switching device M11 and the second end of the twelfth switching device M12. The third end of the eleventh switching device M11 is electrically connected to the output terminal of the first power conversion module 101. The third end of the twelfth switching device M12 is electrically connected to the output terminal of the second power conversion module 102.

[0065] Optionally, in this optional embodiment, the switching devices (e.g., the eleventh switching device M11 and the twelfth switching device M12) can be MOSFETs or other switching devices capable of controlling the on / off state of a circuit; this embodiment of the invention does not impose any limitations. For example, taking the eleventh switching device M11 as an example, when the ninth switching device M1 is an N-type MOSFET, such as... Figure 7 As shown, the first terminal of the eleventh switching device M11 is the gate (G), the second terminal of the eleventh switching device M11 is the drain (D), and the third terminal of the eleventh switching device M11 is the source (S). This embodiment of the invention does not limit the specific terminal.

[0066] It is evident that by setting a first conduction control unit and a second conduction control unit in the output mode control module, when the first conduction control unit and the second conduction control unit are turned on, the first power output module and the second power output module can be connected in parallel to output power, thereby achieving power sharing. This can improve the convenience of switching power output modes and enhance the flexibility of output power adjustment.

[0067] The working principle of the power distribution circuit in this embodiment of the invention is as follows: Wide-range voltage regulation and high-efficiency power conversion are achieved through the first and second power conversion modules. Current sampling is achieved through the sampling resistor, and voltage loop feedback is achieved through the voltage detection terminal in the main control module. The main control module completes the communication interaction, enable control, current and voltage sampling, voltage regulation and fault protection of the two power conversion modules. The first and second path switching units are configured to output with a single port (USB-C1 or USB-C2) or dual ports (USB-C1+USB-C2). The output mode control module executes the switching control to realize the parallel connection of the two power conversion modules, ensuring that the two power conversion modules operate synchronously and share power. Power information is collected and exchanged in real time, and output parameters are dynamically adjusted to realize dynamic power allocation of the output ports. By connecting the two parallel and sharing the power, the existing single high-power solution is replaced. Under the premise of constant total power limit, power is automatically allocated according to load demand. In the case of single port operation, full power output is shared through the parallel architecture. When both ports are used at the same time, the stable operation of dual-channel fast charging is still maintained.

[0068] In this embodiment of the invention, for example, please refer to [link / reference]. Figure 9 , Figure 9 This is a schematic diagram of a power distribution circuit disclosed in an embodiment of the present invention; as shown below. Figure 9 As shown, assuming Figure 9 Both DC modules (i.e., the first power conversion module and the second power conversion module) can output 50W of power. Through the power distribution circuit of this application, it is possible to... Figure 9 Port 1 or Port 2 (i.e., the first power output module or the second power output module) shares the output power of the two DC modules, meaning a single port can output a maximum of 100W of power. Figure 9 Port 1 or Port 2 in the above-mentioned DC module will share the output power of the DC module, that is, each of the two ports can output 50W of power. This embodiment of the invention does not limit the power output.

[0069] Example 2 Please see Figure 10 , Figure 10 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention. The electronic device includes a device body and a power distribution circuit as described in any of the embodiments in Embodiment 1. The functions that the electronic device can perform include, but are not limited to, dynamically adjusting the output power of the ports. It should be noted that for a detailed description of the power distribution circuit, please refer to the specific description in Embodiment 1; it will not be repeated in this embodiment.

[0070] It is evident that implementation Figure 10The described electronic device utilizes a simple and easily implemented power distribution circuit, comprising a power conversion circuit, a power sharing control circuit, and a power output circuit. The power conversion circuit includes at least two power conversion modules, and the power output circuit includes at least two power output modules. When an external device is detected connected to a power output module, the circuit, through the power sharing control circuit, obtains the demand parameters corresponding to the connected external device and controls the output power of the power output modules to the external device based on the demand parameters and the shared output power provided by each power conversion module. The sum of the shared output power of all power conversion modules equals the demand power of the external device. This allows for dynamic adjustment of the output power provided to the external device by sharing the output power of multiple power conversion modules. This improves the flexibility and reliability of output power adjustment while reducing development costs due to the simple circuit structure. Furthermore, the power shunting method makes the circuit temperature distribution more uniform, reducing heat dissipation costs and thus lowering overall development costs.

[0071] Finally, it should be noted that the power distribution circuit and electronic device disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power distribution circuit, characterized in that, The power distribution circuit includes a power conversion circuit, a power sharing control circuit, and a power output circuit. The power conversion circuit includes at least two power conversion modules, and the power output circuit includes at least two power output modules, wherein: The output terminal of each power conversion module is electrically connected to one of the first power output control terminals of the power sharing control circuit, and the second power output control terminal of the power sharing control circuit corresponding to the first power output control terminal is electrically connected to the input terminal of one of the power output modules; the signal transmission terminal of each power output module is electrically connected to one of the signal transmission terminals of the power sharing control circuit; the input terminal of each power conversion module is used to electrically connect to a power supply; the external connection terminal of each power output module is used to electrically connect to an external device. The power sharing control circuit is used to obtain the demand parameters corresponding to the external device when at least one of the power output modules is detected to be connected to an external device; and to control the output power output by the power output module to the external device according to the demand parameters and the shared output power provided by each power conversion module; wherein the demand parameters include the communication protocol and the demand power; and wherein the sum of the shared output power of all the power conversion modules is equal to the demand power of the external device.

2. The power distribution circuit according to claim 1, characterized in that, When the power conversion circuit includes two power conversion modules, the power conversion circuit includes a first power conversion module and a second power conversion module, wherein: The output terminal of the first power conversion module is electrically connected to one of the first power output control terminals of the power sharing control circuit; the input terminal of the first power conversion module is used to electrically connect to the first power supply. The output terminal of the second power conversion module is electrically connected to another first power output control terminal of the power sharing control circuit; the input terminal of the second power conversion module is used to electrically connect to the second power supply.

3. The power distribution circuit according to claim 2, characterized in that, When the power output circuit includes two power output modules, the power output circuit includes a first power output module and a second power output module, wherein: The input terminal of the first power output module is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the first power conversion module; the signal transmission terminal of the first power output module is electrically connected to the first signal transmission terminal of the power sharing control circuit; the external connection terminal of the first power output module is used to electrically connect to a first external device. The input terminal of the second power output module is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the second power conversion module; the signal transmission terminal of the second power output module is electrically connected to the second signal transmission terminal of the power sharing control circuit; and the external connection terminal of the second power output module is used to electrically connect to a second external device.

4. The power distribution circuit according to claim 3, characterized in that, The power sharing control circuit includes a main control module, an output path switching module, and an output mode control module, wherein: The first control terminal of the main control module is electrically connected to the first control terminal of the output path switching module; the first conduction control terminal of the output path switching module and the first parallel terminal of the output mode control module are respectively electrically connected to the output terminal of the first power conversion module; the first bus terminal of the main control module and the second conduction control terminal of the output path switching module are respectively electrically connected to the input terminal of the first power output module. The second control terminal of the main control module is electrically connected to the second control terminal of the output path switching module; the third conduction control terminal of the output path switching module and the second parallel terminal of the output mode control module are respectively electrically connected to the output terminal of the second power conversion module; the second bus terminal of the main control module and the fourth conduction control terminal of the output path switching module are respectively electrically connected to the input terminal of the second power output module. The third control terminal of the main control module is electrically connected to the control terminal of the output mode control module; The main control module is used to determine a power output path based on the connected external device when at least one of the power output modules is detected to be connected to an external device; and to control the path corresponding to the power output path in the output path switching module to be turned on based on the power output path; wherein, the power output path includes a first output path corresponding to the first power output module and / or a second output path corresponding to the second power output module; In addition, the system obtains the demand parameters corresponding to each of the external devices connected; determines the power output mode based on the demand parameters and the power output path; when the power output mode is a power sharing output mode, it outputs a first mode control drive signal to the output mode control module to control the output mode control module to be turned on, thereby realizing the parallel output of the first power output module and the second power output module. Furthermore, based on the conduction status of the output path switching module and the conduction status of the output mode control module, and based on the shared output power provided by all the power conversion modules, the output power output by each power output module to the external device is controlled.

5. The power distribution circuit according to claim 4, characterized in that, The first voltage feedback terminal of the main control module is electrically connected to the voltage feedback terminal of the first power conversion module; the second voltage feedback terminal of the main control module is electrically connected to the voltage feedback terminal of the second power conversion module. The first detection terminal of the main control module is electrically connected to the output terminal of the first power conversion module; the second detection terminal of the main control module is electrically connected to the output terminal of the second power conversion module. The main control module is also used to monitor the output current parameters and output voltage parameters corresponding to each power conversion module.

6. The power distribution circuit according to claim 4, characterized in that, The output path switching module includes a first path switching unit and a second path switching unit, wherein: The first terminal of the first path switching unit is electrically connected to the first control terminal of the main control module; the second terminal of the first path switching unit is electrically connected to the output terminal of the first power conversion module; and the third terminal of the first path switching unit is electrically connected to the input terminal of the first power output module. The first end of the second path switching unit is electrically connected to the second control end of the main control module; the second end of the second path switching unit is electrically connected to the output end of the second power conversion module; and the third end of the second path switching unit is electrically connected to the input end of the second power output module.

7. The power distribution circuit according to claim 4, characterized in that, The output mode control module includes a first conduction control unit and a second conduction control unit, wherein: The first terminal of the first conduction control unit and the first terminal of the second conduction control unit are both electrically connected to the third control terminal of the main control module; the second terminal of the first conduction control unit is electrically connected to the second terminal of the second conduction control unit; the third terminal of the first conduction control unit is electrically connected to the output terminal of the first power conversion module; and the third terminal of the second conduction control unit is electrically connected to the output terminal of the second power conversion module.

8. The power distribution circuit according to claim 3, characterized in that, The first power output module includes a first interface, and the second power output module includes a second interface, wherein: Each of the power output modules has its signal transmission terminal electrically connected to one of the signal transmission terminals of the power sharing control circuit, specifically including: the configuration terminal of the first interface is electrically connected to the first configuration terminal of the power sharing control circuit; the data terminal of the first interface is electrically connected to the first data terminal of the power sharing control circuit; and the configuration terminal of the second interface is electrically connected to the second configuration terminal of the power sharing control circuit; the data terminal of the second interface is electrically connected to the second data terminal of the power sharing control circuit. Additionally, the bus terminal of the first interface is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the first power conversion module; the external connection terminal of the first interface is used to electrically connect to a first external device; and the ground terminal of the first interface is used for grounding. The bus terminal of the second interface is electrically connected to the second power output control terminal of the power sharing control circuit, which corresponds to the second power conversion module; the external connection terminal of the second interface is used to electrically connect to a second external device; and the ground terminal of the second interface is used for grounding.

9. The power distribution circuit according to any one of claims 1-8, characterized in that, Each of the power conversion modules includes a DC-DC control unit and a power regulation unit, wherein for each of the power conversion modules: The first terminal of the DC-DC control unit and the first terminal of the power conditioning unit are electrically connected to the power supply corresponding to the power conversion module; the second terminal of the DC-DC control unit is electrically connected to the second terminal of the power conditioning unit, the third terminal of the DC-DC control unit is electrically connected to the third terminal of the power conditioning unit, the fourth terminal of the DC-DC control unit is electrically connected to the fourth terminal of the power conditioning unit, the fifth terminal of the DC-DC control unit is electrically connected to the fifth terminal of the power conditioning unit, the sixth terminal of the DC-DC control unit is electrically connected to the sixth terminal of the power conditioning unit, and the seventh terminal of the DC-DC control unit is electrically connected to the seventh terminal of the power conditioning unit; the eighth terminal of the power conditioning unit is electrically connected to one of the first power output control terminals of the power sharing control circuit. The DC-DC control unit is used to output a drive signal to the power regulation unit after receiving the power conversion signal, so as to control the conduction / cutoff of each branch in the power regulation unit, thereby converting the received input voltage into a target voltage to obtain the shared output power corresponding to the power conversion signal.

10. An electronic device, characterized in that, The electronic device includes a device body and a power distribution circuit as described in any one of claims 1-9.

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