Power supply equipment and power supply system
By designing a dual power supply module and switching devices, the short-circuit or open-circuit switching of the power supply port is realized, which solves the problem of heat generation of the power supply equipment when supplying high current and ensures safe high-current power supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LENOVO (BEIJING) LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-17
Smart Images
Figure CN224138745U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic equipment technology, and in particular to a power supply device and power supply system. Background Technology
[0002] With the continuous development of science and technology, more and more electronic devices are being widely used in people's daily lives and work, bringing great convenience and becoming indispensable tools for people today. For electronic devices that require external power supply, they generally need to be connected to an external power source through a power supply device to convert the input of the external power source into the required operating voltage and current.
[0003] When power is supplied to the receiving device through the power supply port, the power supply port will heat up. The larger the current in the power supply port, the more serious the heating problem will be. Due to this limitation, conventional power supply equipment cannot achieve safe high current power supply. Utility Model Content
[0004] In view of the above problems, this application provides a power supply device and a power supply system to achieve the purpose of providing high-current power to the powered equipment. The specific solution is as follows:
[0005] The first aspect of this application provides a power supply device, comprising:
[0006] The power supply component includes at least a first power supply module and a second power supply module;
[0007] The port component includes at least: a first power supply port, which is connected to the output terminal of a first power supply module; and a second power supply port, which is connected to the output terminal of a second power supply module.
[0008] A first switching device, the first end of which is connected between the output terminal of the first power supply module and the first power supply port; the second end of which is connected between the output terminal of the second power supply module and the second power supply port.
[0009] The power supply equipment can use a first switching device to short-circuit or open-circuit the first power supply port and the second power supply port. If it is in an open-circuit state, the first power supply module is used to supply power to the first power receiving device through the first power supply port, and / or the second power supply module is used to supply power to the second power receiving device through the second power supply port. If it is in a short-circuit state, one of the first power supply module and the second power supply module is used to be in a closed-circuit state with the first power supply port and the second power supply port, so as to supply power to the third power receiving device simultaneously through the first power supply port and the second power supply port.
[0010] Optionally, in the above-mentioned electronic device, the rated output power of the first power supply module is greater than the rated output power of the second power supply module;
[0011] If in a short-circuit state, the second power supply module is disconnected from the second power supply port.
[0012] Optionally, in the above-mentioned electronic device, the second power supply module is connected to the second power supply port through a second switching device, and the second end of the first switching device is connected between the second switching device and the second power supply port.
[0013] Optionally, in the above-mentioned electronic device, the first power supply module is connected to the first power supply port through a third switching device, and the first end of the first switching device is connected between the output end of the first power supply module and the third switching device.
[0014] A second aspect of this application provides a power supply system, which includes a pluggable power supply device and a connecting wire; the connecting wire is used to connect the power receiving device to the power supply port of the power supply device.
[0015] The power supply equipment includes:
[0016] The power supply component includes at least a first power supply module and a second power supply module;
[0017] The port component includes at least: a first power supply port, which is connected to the output terminal of a first power supply module; and a second power supply port, which is connected to the output terminal of a second power supply module.
[0018] A first switching device, the first end of which is connected between the output terminal of the first power supply module and the first power supply port; the second end of which is connected between the output terminal of the second power supply module and the second power supply port.
[0019] The power supply equipment can make the first power supply port and the second power supply port short-circuited or open-circuited through the first switching device.
[0020] If in an open circuit state, the first power supply module is used to supply power to the first powered device through the first power supply port, and / or the second power supply module is used to supply power to the second powered device through the second power supply port; if in a short circuit state, one of the first power supply module and the second power supply module is used to be in a closed circuit state with the first power supply port and the second power supply port, so as to supply power to the third powered device simultaneously through the first power supply port and the second power supply port.
[0021] Optionally, in the above power supply system, the connecting wires include:
[0022] The first connection end is used to connect to the power receiving equipment;
[0023] At least two second connection terminals are provided for pluggable connection to the power supply port in the port assembly; wherein each second connection terminal is connected to the first connection terminal via a fourth switching device.
[0024] The control component is used to control the conduction state of the fourth switching device.
[0025] Optionally, in the above power supply system, the control component includes:
[0026] Two power transmission chips, with their second connection terminals connected to one power transmission chip via a fourth switching device;
[0027] The microcontroller is connected to the power transmission chip and is used to control the conduction state of the fourth switching device through the power transmission chip.
[0028] Optionally, in the above power supply system, the connecting wires also include:
[0029] A detection device located within the second connection end is used to detect the temperature information of the second connection end.
[0030] The control component is connected to the detection device and is also used to control the conduction state of the fourth switching device based on temperature information.
[0031] Optionally, in the above power supply system, the connecting wires also include:
[0032] At least two resistor branches are provided, and a control component is connected to the resistor branches to control the connection status of the resistor branches to characterize the current power supply parameters of the connecting wires.
[0033] Optionally, in the above power supply system, the resistor branch includes a fifth switching device and a resistor connected in series between the control component and the ground terminal.
[0034] By means of the above technical solution, in the power supply equipment and power supply system provided in this application, the power supply equipment can use a first switching device to make the first power supply port and the second power supply port be in a short-circuit state and an open-circuit state, respectively. Based on this:
[0035] When both power supply ports are in an open circuit state, the first power supply module can supply power to the first power receiving device through the first power supply port, and / or the second power supply module can supply power to the second power receiving device through the second power supply port. At this time, the power supply device can supply power to a power receiving device through a power supply module and its connected power supply port, and can also supply power to a power receiving device through two power supply modules and their respective connected power supply ports at the same time.
[0036] When the two power supply ports are short-circuited, one of the first and second power supply modules can be connected to both power supply ports to simultaneously supply power to the third device. In this case, for the power supply module connected to both power supply ports, since it supplies power to the third device through both ports simultaneously, the total current can be split between the two power supply ports. This allows each power supply port to have a smaller current and generate less heat. As long as the heat generated at a single power supply port does not exceed safety standards, a larger total current can be used to supply a larger current to the third device. Attached Figure Description
[0037] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0038] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.
[0039] Figure 1 This is a schematic diagram of the structure of a power supply device provided in an embodiment of this application;
[0040] Figure 2 This is a schematic diagram of another power supply device provided in an embodiment of this application;
[0041] Figure 3 This is a schematic diagram of the structure of another power supply device provided in an embodiment of this application;
[0042] Figure 4 This is a schematic diagram of a power supply system provided in an embodiment of this application;
[0043] Figure 5 An equivalent circuit diagram for connecting wires is provided in an embodiment of this application;
[0044] Figure 6 An equivalent circuit diagram of another connecting wire provided in an embodiment of this application;
[0045] Figure 7 An equivalent circuit diagram for another type of connecting wire provided in an embodiment of this application;
[0046] Figure 8 This is an equivalent circuit diagram of another type of connecting wire provided in an embodiment of this application.
[0047] Figure label:
[0048] 100 - Power supply component; 101 - First power supply module; 102 - Second power supply module; 103 - Port component; 104 - First power supply port; 105 - Second power supply port; 106 - Conversion module; 107 - Power supply equipment; 108 - Connecting wire; 109 - First connection terminal; 110 - Second connection terminal; 111 - Control component; 112 - Power transmission chip; 113 - Microcontroller; 114 - Detection device; 115 - Resistor branch; K1 - First switching device; K2 - Second switching device; K3 - Third switching device; K4 - Fourth switching device; K5 - Fifth switching device; R - Resistor; N1 - First node; N2 - Second node; OUT1 - First output terminal; OUT2 - Second output terminal; OUT3 - Third output terminal; IN1 - First input terminal; IN2 - Second input terminal; IN3 - Third input terminal. Detailed Implementation
[0049] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.
[0050] As described in the background section, when power is supplied to a device through a power supply port, the power supply port will heat up. The larger the current in the power supply port, the more serious the heating problem becomes. As a result, conventional power supply equipment cannot achieve safe high-current power supply.
[0051] Taking commonly used current adapters with Type-C terminals as power supply ports as an example, due to the performance limitations of the Type-C terminal structure, the maximum current it can withstand is approximately 12A. When the current in the Type-C terminal structure exceeds 12A, the Type-C terminal structure will generate significant heat. Experimental data shows that under room temperature conditions (ambient temperature of 25℃), if the current in the Type-C terminal structure exceeds 12A, the surface temperature of the Type-C terminal structure will reach 66.3℃, with a temperature rise of 41.3℃ relative to the surrounding environment. The outer casing temperature will reach 63.5℃, with a temperature rise of 38.5℃ relative to the surrounding environment. Therefore, high-current adapters using Type-C terminals as power supply ports and their corresponding connecting wires cannot meet safety requirements.
[0052] To address the aforementioned problems, this application provides a power supply device, comprising:
[0053] The power supply component includes at least a first power supply module and a second power supply module;
[0054] The port component includes at least: a first power supply port, which is connected to the output terminal of a first power supply module; and a second power supply port, which is connected to the output terminal of a second power supply module.
[0055] A first switching device, the first end of which is connected between the output terminal of the first power supply module and the first power supply port; the second end of which is connected between the output terminal of the second power supply module and the second power supply port.
[0056] The power supply equipment can use a first switching device to short-circuit or open-circuit the first power supply port and the second power supply port. If it is in an open-circuit state, the first power supply module is used to supply power to the first power receiving device through the first power supply port, and / or the second power supply module is used to supply power to the second power receiving device through the second power supply port. If it is in a short-circuit state, one of the first power supply module and the second power supply module is used to be in a closed-circuit state with the first power supply port and the second power supply port, so as to supply power to the third power receiving device simultaneously through the first power supply port and the second power supply port.
[0057] In the power supply device provided in this application embodiment, when a large current is required to supply power to the powered device, the first power supply port and the second power supply port can be short-circuited, so that the one with the larger rated output power of the first power supply module and the second power supply module is in a closed circuit state with the first power supply port and the second power supply port. The power supply module can divert the large total current to the two power supply ports, so that each power supply port has a small current and heat generation. As long as the heat generation of a single power supply port does not exceed the safety standard, a large current can be supplied to the powered device through a large total current.
[0058] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0059] refer to Figure 1 , Figure 1 This application provides a schematic diagram of the structure of a power supply device, which includes:
[0060] The power supply component 100 includes at least a first power supply module 101 and a second power supply module 102.
[0061] Port component 103 includes at least: a first power supply port 104, which is connected to the output terminal of the first power supply module 101; and a second power supply port 105, which is connected to the output terminal of the second power supply module 102.
[0062] The first switching device K1, the first end of the first switching device K1 is connected to the output terminal of the first power supply module 101 (i.e., Figure 1 The first output terminal OUT1 shown is connected between the first power supply port 104 and the first output terminal OUT1 shown; the second terminal of the first switching device K1 is connected to the output terminal of the second power supply module 102 (i.e., Figure 1 The second output terminal OUT2 shown is located between the second power supply port 105;
[0063] The power supply equipment can make the first power supply port 104 and the second power supply port 105 short-circuited or open-circuited by the first switching device K1. When the first switching device K1 is turned on, the first power supply port 104 and the second power supply port 105 can be short-circuited. When the first switching device K1 is turned off, the first power supply port 104 and the second power supply port 105 can be open-circuited.
[0064] If the first power supply port 104 and the second power supply port 105 are in an open-circuit state, the first power supply module 101 is used to supply power to the first powered device through the first power supply port 104, and / or, the second power supply module 102 is used to supply power to the second powered device through the second power supply port 105. The first power supply module 101 can supply power to the first powered device through the first power supply port 104, and / or the second power supply module 102 can supply power to the second powered device through the second power supply port 105. At this time, the power supply device can supply power to a powered device through one power supply module and its connected power supply port, and can also supply power to a powered device simultaneously through two power supply modules and their respective connected power supply ports.
[0065] If the first power supply port 104 and the second power supply port 105 are in a short-circuit state, one of the first power supply module 101 and the second power supply module 102 is connected to both the first power supply port 104 and the second power supply port 105 to simultaneously supply power to the third powered device. At this time, the other of the first power supply module 101 and the second power supply module 102 is disconnected from both the first power supply port 104 and the second power supply port 105. For a power supply module connected to both power supply ports simultaneously, since it supplies power to the third powered device through both power supply ports, the total current can be split between the two power supply ports. This allows each power supply port to have a smaller current and less heat generation. As long as the heat generation of a single power supply port does not exceed safety standards, a larger total current can be used to supply a larger current to the third powered device.
[0066] Optionally, the first power supply module 101 can control the conduction state between the first power supply module 101 and the first power supply port 104 by controlling the conduction state of its own output terminal, and / or, control the conduction state between the first power supply module 101 and the first power supply port 104 by the third switching device K3 in the following embodiments.
[0067] Optionally, the second power supply module 102 can control the conduction state between the second power supply module 102 and the second power supply port 105 by controlling the conduction state of its own output terminal, and / or, by controlling the conduction state between the second power supply module 102 and the second power supply port 105 by the second switching device K2 in the following embodiments.
[0068] refer to Figure 2 , Figure 2 This is a schematic diagram of another power supply device provided in an embodiment of this application. Based on other implementation methods, Figure 2 In the illustrated electronic device, the power supply assembly 100 further includes a conversion module 106. The output terminal of the conversion module 106 (i.e. Figure 2 The third output terminal OUT3 shown is connected to the input terminal of the first power supply module 101 (i.e., Figure 2 The first input terminal IN1 and the second input terminal of the power supply module 102 shown in the figure (i.e., Figure 2 The second input terminal IN2 shown is connected. The input terminal of the power supply component 100 (i.e. Figure 2 The third input terminal IN3 shown is used to connect to an external power supply.
[0069] The conversion module 106 can be an AC-DC module, which can convert the AC voltage input from an external AC source into a DC voltage.
[0070] Optionally, the first power supply module 101 and the second power supply module 102 have different rated output powers to provide DC current of different magnitudes.
[0071] Optionally, the first power supply module 101 and the second power supply module 102 can be two DC-DC modules with different rated output powers. They can output different DC voltages according to the DC voltage output by the conversion module 106, so as to realize different DC current power supply.
[0072] In one embodiment, the rated output power of the first power supply module 101 is greater than the rated output power of the second power supply module 102. If in a short-circuit state, the second power supply module 102, with its lower rated output power, is disconnected from the second power supply port 105. In this case, the first power supply module 101, with its higher rated power, can simultaneously supply power to the same device through both the first power supply port 104 and the second power supply port 105. Compared to the first power supply module 101 supplying power to the device solely through the first power supply port 104, this method allows the first power supply module 101 to supply power to the same device simultaneously through both power supply ports. This allows for the distribution of a larger total current to both power supply ports, thereby dispersing the heat generated during power supply to both the first power supply port 104 and the second power supply port 105 while maintaining a constant total current. This reduces the heat generation and surface temperature of a single power supply port.
[0073] Optionally, the first power supply module 101 can be a first DC-DC module with a rated output power of 240W, and the second power supply module 102 can be a second DC-DC module with a rated output power of 170W. In this embodiment, the rated output power of the two power supply modules can be set as needed, and is not limited to the first power supply module 101 having a rated output power of 240W and the second power supply module 102 having a rated output power of 170W. The rated output power of the two power supply modules can also be other power values, and the rated output power of the first power supply module 101 can also be set to be less than the rated output power of the second power supply module 102.
[0074] refer to Figure 3 , Figure 3 This is a schematic diagram of another power supply device provided in an embodiment of this application. Based on other embodiments, Figure 3 In the electronic device shown, the second power supply module 102 is connected to the second power supply port 105 through the second switching device K2, and the second end of the first switching device K1 is connected between the second switching device K2 and the second power supply port 105.
[0075] like Figure 3As shown, the second end of the first switching device K1 is connected to the first node N1, which is located between the second switching device K2 and the second power supply port 105. In this configuration, when the first switching device K1 is turned on and the first power supply module 101 simultaneously supplies power to the powered device through the first power supply port 104 and the second power supply port 105, the second switching device K2 can be turned off to prevent the current output by the first power supply module 101 from flowing back to the second power supply module 102. This prevents the high voltage output of the first power supply module 101 from flowing to the low voltage of the second power supply module 102, thus avoiding energy loss and damage to the second power supply module 102. Simultaneously, it ensures the stability of the overall output voltage and current of the power supply equipment.
[0076] In addition to other implementation methods, one implementation method may also include, for example: Figure 3 As shown, in the electronic device, the first power supply module 101 is connected to the first power supply port 104 through the third switching device K3, and the first end of the first switching device K1 is connected between the output end of the first power supply module 101 and the third switching device K3.
[0077] like Figure 3 As shown, the first terminal of the first switching device K1 is connected to the second node N2, which is located between the first output terminal OUT1 and the third switching device K3. In this configuration, when both the first switching device K1 and the third switching device K3 are turned on, and the first power supply module 101 simultaneously supplies power to the powered device through the first power supply port 104 and the second power supply port 105, the current path from the first power supply module 101 to the second power supply port 105 passes through the first switching device K1, and the current path from the first power supply module 101 to the first power supply port 104 passes through the third switching device K3. Therefore, the current paths of the first power supply module 101 and the first power supply port 104 and the second power supply port 105 all pass through a single switching device, reducing the impedance difference between the corresponding current paths of the two power supply ports and ensuring that the two current paths have the same or similar impedance, thus achieving better current sharing between the two power supply ports.
[0078] The power supply port in port assembly 103 can be a Type-C terminal structure, or a USB-A terminal structure, or a USB-C terminal structure, or a circular DC power interface, etc.
[0079] In this embodiment, the number of power supply modules in the power supply equipment is not limited to only the first power supply module 101 and the second power supply module; it can also include more than two power supply modules, each connected to a power supply port. For example, it can be configured to have n power supply modules, which can be sequentially numbered from the first power supply module to the nth power supply module, where n is a positive integer greater than 1. The i-th power supply module is connected to the i-th power supply port, where i is a positive integer not greater than n. The j-th power supply port and the (j+1)-th power supply port are each connected via a switching device, where j is a positive integer less than n. Thus, when the n power supply ports simultaneously form a closed circuit with a power supply module based on each switching device, the power supply module can simultaneously supply power to the devices connected to the n power supply ports.
[0080] Based on the power supply equipment provided in the above embodiments, another embodiment of this application also provides a power supply system, which is as follows: Figure 4 As shown.
[0081] refer to Figure 4 , Figure 4 This is a schematic diagram of a power supply system provided in an embodiment of the present application. The power supply system includes: a pluggable power supply device 107 and a connecting wire 108. The power supply device 107 can be the structure provided in any of the above embodiments. The specific structure of the power supply device 107 can be referred to the accompanying drawings of the above embodiments. The structure of the power supply device 107 will not be described again in this embodiment.
[0082] The connecting wire 108 is used to connect the power receiving device to the power supply port of the power supply device 107. The power supply port of the power supply device 107 includes at least a first power supply port 104 and a second power supply port 105.
[0083] The power supply device 107 can be used as a power adapter with multiple power supply ports, and the connecting wire 108 can be used as a power line. The power supply device 107 can supply power to the powered device through the connecting wire 108.
[0084] In one embodiment, the power supply device 107 can be connected to, for example... Figure 4 The multi-input connector 108 shown includes a first connector 109 for connecting to a powered device and a plurality of second connectors 110. The inputs of the connector 108 are for plugging into power supply ports in the power supply device 107. Optionally, the number of second connectors 110 may be the same as the number of power supply ports in the port assembly 103 of the power supply device 107. Figure 4 As shown, if the power supply port assembly 103 includes two power supply ports (such as the first power supply port 104 and the second power supply port 105 mentioned above), then the connecting wire 108 includes two second connecting ends 110.
[0085] When the power supply system includes a multi-input connection wire 108, when the power supply ports of the port assembly 103 in the power supply device 107 are disconnected from each other, the connection wire 108 can be plugged into a second connection terminal 110 and a power supply port, and can supply power to the power receiving device connected to the first connection terminal 109 based on the power supply module connected to the power supply port.
[0086] When the power supply system includes a multi-input connection wire 108, and multiple power supply ports of the port assembly 103 in the power supply device 107 form a path with a power supply module, each of the multiple power supply ports can be plugged into a second connection terminal 110. The power supply module can simultaneously supply power to the powered device connected to the first connection terminal 109 through the multiple power supply ports. Wherein, if the power supply device 107 has at least three power supply ports, the multiple power supply ports can be all the power supply ports in the power supply device 107, or at least two of the power supply ports in the power supply device 107.
[0087] In other configurations, the power supply system may include a single-input connecting wire 108, in which case the connecting wire 108 has only one second connecting terminal 110. In this configuration, the switching devices inside the power supply device 107 can be controlled to ensure that all power supply ports of the power supply device 107 are in an open-circuit state. When the second connecting terminal 110 is plugged into a power supply port, the power supply module connected to that power supply port can supply power to the device connected to the first connecting terminal 109.
[0088] refer to Figure 5 , Figure 5 An equivalent circuit diagram for connecting wires is provided in this application embodiment. Based on other implementation methods, Figure 5 The connecting wire 108 shown has multiple input terminals, including: a first connecting terminal 109 for connecting to a powered device; at least two second connecting terminals 110 for pluggable connection to a power supply port in the port assembly 103; wherein each second connecting terminal 110 is connected to the first connecting terminal 109 via a fourth switching device K4; and a control assembly 111 for controlling the conduction state of the fourth switching device K4.
[0089] exist Figure 5In the illustrated configuration, the connecting wire 108 integrates a control component 111. The control component 111 controls the conduction state of each fourth switching device K4, thereby controlling the conduction state of each second connection terminal 110 and the first connection terminal 109. When the power supply device 107 simultaneously supplies power to the device connected to the first connection terminal 109 through multiple power supply ports, the control component 111 can control all the fourth switching devices K4 connected to the corresponding second connection terminals 110 to be in a conducting state. By connecting each of the second connection terminals 110 to a corresponding power supply port, a power supply module in the power supply device 107 can be connected to multiple power supply ports, and power can be supplied to the device connected to the first connection terminal 109 through the second connection terminals 110 connected to each of the multiple power supply ports.
[0090] refer to Figure 6 , Figure 6 An equivalent circuit diagram for another connecting wire provided in an embodiment of this application, in Figure 5 Based on the method shown, Figure 6 In the connecting wire 108 shown, the control component 111 includes: two power delivery integrated circuits (PD ICs) 112, with the second connection terminal 110 connected to one power delivery integrated circuit 112 via the connected fourth switching device K4; and a microcontroller unit (MCU) 113, which is connected to the power delivery integrated circuit 112 and is used to control the conduction state of the fourth switching device K4 via the power delivery integrated circuit 112.
[0091] The power delivery chip 112 plays an important role in the power line, especially in power supply systems with Type-C terminal structures. The main functions of the power delivery chip 112 include:
[0092] The power transmission chip 112 can be used for communication between the power supply device 107 and the powered device connected by the connecting wire 108. Through a configuration channel, the power transmission chip 112 can send and receive data packets containing information such as power capability and requested power, thereby coordinating power transmission between the power supply device 107 and the powered device. For example, when a powered device is plugged into the power supply device 107 via the connecting wire 108, the power transmission chip 112 first performs power negotiation to determine the supported voltage and current parameters, and then performs power transmission according to the negotiation results.
[0093] The power transmission chip 112 can also incorporate multiple safety protection mechanisms, such as overvoltage protection, overcurrent protection, and overheat protection. These protection mechanisms ensure that if any abnormal situation occurs during power transmission (such as excessive voltage, excessive current, or excessive temperature), the power transmission chip 112 can quickly disconnect the circuit between itself and the power supply equipment 107, preventing damage to the powered equipment and reducing the occurrence of safety accidents.
[0094] The power transmission chip 112 can also achieve multi-protocol compatibility, supporting not only the standard PD protocol but also other fast charging protocols. This allows the connecting wire 108 with the power transmission chip 112 to be adapted to more different types of powered devices.
[0095] refer to Figure 7 , Figure 7 This application provides another equivalent circuit diagram for connecting wires, based on other implementation methods. Figure 7 The connecting wire 108 shown further includes a detection device 114 located within the second connection terminal 110. The detection device 114 is used to detect the temperature information of the second connection terminal 110. The control component 111 is connected to the detection device 114 and is also used to control the conduction state of the fourth switching device K4 based on the temperature information. The control component 111 can implement abnormal protection during the power supply process based on the temperature information collected by the detection device 114.
[0096] By placing the detection device 114 inside the second connection terminal 110, it can be placed closer to the power input terminal, enabling the detection of the temperature of the connected power supply port. Based on the detection device 114, surge current suppression, temperature-sensitive response, and rapid protection can be effectively achieved.
[0097] When the control component 111 includes multiple PD ICs and an MCU, the detection device 114 can be directly connected to the MCU. Based on the temperature information collected by the detection device 114, the MCU controls the conduction state of each fourth switching device K4 through the PD IC.
[0098] Optionally, the detection device 114 is a thermistor, such as a negative temperature coefficient thermistor (NTC).
[0099] refer to Figure 8 , Figure 8 This application provides another equivalent circuit diagram for connecting wires, based on other implementation methods. Figure 8 The connecting wire 108 shown further includes at least two resistor branches 115. A control component 111 is connected to the resistor branches 115 and is used to control the connection state of the resistor branches 115 to characterize the current power supply parameters of the connecting wire 108.
[0100] Optionally, the resistor branch 115 may be integrated inside the first connection terminal 109, or in the wire body between the first connection terminal 109 and the second connection terminal 110.
[0101] like Figure 8 As shown, resistor branch 115 includes a fifth switching device K5 and a resistor R connected in series between control component 111 and ground terminal.
[0102] The multiple resistor branches 115 can have multiple different conduction combinations. Each conduction combination can correspond to a power supply parameter of the connecting wire 108. The power supply parameter can include one or more of the output power, output voltage and output current of the connecting wire 108.
[0103] The control component 111 pre-stores the correspondence between different conduction combinations and their corresponding power supply parameters. This correspondence can be stored via the MCU. Figure 8 In the illustrated configuration, one of the two resistor branches 115 has a resistance R of 4640Ω, and the other has a resistance R of 1910Ω. The two resistor branches 115 have four conduction combinations: both branches are grounded and conducting; both branches are open; one branch with the larger resistance R is grounded and conducting, while the other is open; and one branch with the smaller resistance R is grounded and conducting, while the other is open. Different conduction combinations can represent different power supply parameters. The power supply device 107 and / or the connected wire 108 can identify the current conduction combination to negotiate and adjust the power supply parameters.
[0104] The working principle of the power supply system will be explained below, taking the power supply device 107, which includes two power supply modules and two power supply ports, and the connecting wire 108, which includes two second connecting ends 110 and one first connecting end 109, as an example.
[0105] As described above, the power supply device 107 contains two power supply modules: a first power supply module 101 and a second power supply module 102, respectively connected to a first power supply port 104 and a second power supply port 105. Both power supply ports are Type-C connectors. The first power supply module 101 can be a first DC-DC module with a rated output power of 240W, and the second power supply module 102 can be a second DC-DC module with a rated output power of 170W. Correspondingly, the connecting wire 108 with two second connection terminals 110 can be a Y-type power cord, and the two second connection terminals 110 are Type-C plugs. The first connection terminal 109 can be a square plug.
[0106] The first power supply port 104 and the second power supply port 105 are connected through the first switching device K1. When both are connected to a second connection terminal 110 of the same connecting wire 108, the first switching device K1 is turned on, and the first DC-DC module provides power. At the same time, the two power supply ports provide power to the power receiving equipment connected to the connecting wire 108.
[0107] When the first power supply port 104 and the second power supply port 105 are each connected to a power line, at least one of the first power supply port 104 and the second power supply port 105 can be connected to the second connection terminal 110 of a connecting wire 108, or at least one of them can be connected to an existing power line (a third-party power line). At this time, the first switching device K1 is open-circuited, and the first DC-DC module can supply power to the device connected to one power line through the first power supply port 104; the second DC-DC module can supply power to the device connected to another power line through the second power supply port 105. In the connecting wire 108, the two second connection terminals 110 are respectively connected to a power transmission chip 112, and one power transmission chip 112 can be set as PD IC1 and the other power transmission chip 112 as PD IC2. When the first power supply port 104 and the second power supply port 105 simultaneously form a path with the first DC-DC module, PD IC1 can be used as a protocol decoy IC to communicate with the protocol IC in the first DC-DC module and request power, while PD IC2 does not work. At the same time, the MCU controls resistor branch 115 to ground the resistor branch 115 with a resistance R of 4640Ω, and disconnects the other resistor branch 115, so as to indicate to the current powered device that the current power supply is 240W through the combination of conducting states of resistor branch 115.
[0108] In one power supply method, a second connection terminal 110 of the connecting wire 108 can be connected to the first power supply port 104. The first DC-DC module outputs a power supply of no more than 240W, such as 170W. At this time, the first DC-DC module works, and the PD IC1 requests voltage. At the same time, the MCU controls the resistor branch 115, so that the resistor branch 115 with a resistance R of 1910Ω is grounded and the other resistor branch 115 is open-circuited, so that the current power supply is 170W to the current power receiving device through the combination of conduction states of the resistor branch 115.
[0109] In one power supply method, the power supply device 107 can also use a third-party power line (not the connecting wire 108 provided in the embodiments of this application) to supply power to the powered device. In this case, one of the first power supply port 104 and the second power supply port 105 can be connected to a third-party power line, and a power supply module can supply power to a powered device; or the first power supply port 104 and the second power supply port 105 can each be connected to a third-party power line, and the first power supply module 101 can supply power to the powered device connected to the first power supply port 104, and the second power supply module 102 can supply power to the powered device connected to the second power supply port 105.
[0110] In one embodiment, the connecting wire 108 provided in this application embodiment can be connected to a third-party power supply device (not the power supply device 107 provided in this application embodiment). At this time, PD IC1 and PD IC2 respectively detect the maximum power of their respective second connection terminals 110 and conduct the path that can provide the maximum power. If the maximum power can support 170W, the MCU configures the resistor branch 115 with a resistor R of 1910Ω to ground, and the other resistor branch 115 is open-circuited. Otherwise, the connecting wire 108 is open-circuited and no output is made to prevent overheating caused by high current output.
[0111] The various embodiments in this application are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. The embodiments provided in this application can be combined with each other without contradiction.
[0112] It should be noted that, in the description of this application, the accompanying drawings and embodiments are illustrative rather than restrictive. The same reference numerals throughout the embodiments identify the same structures. Additionally, for ease of understanding and description, the thicknesses of some layers, films, panels, regions, etc., may be exaggerated in the drawings. It is also understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, the element may be directly on the other element or there may be intermediate elements. Furthermore, "on" means positioning an element on or below another element, but does not inherently mean positioning it above another element according to the direction of gravity.
[0113] The terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the middle.
[0114] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.
[0115] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A power supply device, characterized by comprising: include: A power supply assembly, the power supply assembly including at least a first power supply module and a second power supply module; A port component, the port component comprising at least: a first power supply port, the first power supply port being connected to the output terminal of the first power supply module; and a second power supply port, the second power supply port being connected to the output terminal of the second power supply module; A first switching device, wherein a first end of the first switching device is connected between the output end of the first power supply module and the first power supply port; and a second end of the first switching device is connected between the output end of the second power supply module and the second power supply port. The power supply device can short-circuit or open-circuit the first power supply port and the second power supply port through the first switching device. If it is in the open-circuit state, the first power supply module is used to supply power to the first powered device through the first power supply port, and / or the second power supply module is used to supply power to the second powered device through the second power supply port. If it is in the short-circuit state, one of the first power supply module and the second power supply module is used to be in a closed-circuit state with the first power supply port and the second power supply port, so as to simultaneously supply power to the third powered device through the first power supply port and the second power supply port.
2. The power supply device according to claim 1, wherein The rated output power of the first power supply module is greater than the rated output power of the second power supply module; If the circuit is in the short circuit state, the second power supply module is disconnected from the second power supply port.
3. The power supply device according to claim 1 or 2, characterized by, The second power supply module is connected to the second power supply port through a second switching device, and the second end of the first switching device is connected between the second switching device and the second power supply port.
4. The power supply device according to claim 1 or 2, wherein The first power supply module is connected to the first power supply port through a third switching device, and the first end of the first switching device is connected between the output end of the first power supply module and the third switching device.
5. A power supply system characterized by comprising: The power supply system includes a pluggable power supply device and a connecting wire; the connecting wire is used to connect the power receiving device to the power supply port of the power supply device. The power supply equipment includes: A power supply assembly, the power supply assembly including at least a first power supply module and a second power supply module; A port component, the port component comprising at least: a first power supply port, the first power supply port being connected to the output terminal of the first power supply module; and a second power supply port, the second power supply port being connected to the output terminal of the second power supply module; A first switching device, wherein a first end of the first switching device is connected between the output end of the first power supply module and the first power supply port; and a second end of the first switching device is connected between the output end of the second power supply module and the second power supply port. The power supply equipment can make the first power supply port and the second power supply port short-circuited or open-circuited through the first switching device. If in the open circuit state, the first power supply module is used to supply power to the first powered device through the first power supply port, and / or the second power supply module is used to supply power to the second powered device through the second power supply port; if in the short circuit state, one of the first power supply module and the second power supply module is used to be in a closed circuit state with the first power supply port and the second power supply port, so as to supply power to the third powered device simultaneously through the first power supply port and the second power supply port.
6. The power supply system of claim 5, wherein, The connecting wire includes: The first connection end is used to connect to the power receiving equipment; At least two second connection terminals are provided, which are pluggable to the power supply port in the port assembly; wherein each of the second connection terminals is connected to the first connection terminal via a fourth switching device. A control component for controlling the conduction state of the fourth switching device.
7. The power supply system of claim 6, wherein, The control component includes: Two power transmission chips, with the second connection terminal connected to one of the power transmission chips respectively through the connected fourth switching device; A microcontroller is connected to the power transmission chip and is used to control the conduction state of the fourth switching device through the power transmission chip.
8. The power supply system of claim 6, wherein, The connecting wire also includes: A detection device located within the second connection end, the detection device being used to detect temperature information of the second connection end; The control component is connected to the detection device and is also used to control the conduction state of the fourth switching device based on the temperature information.
9. The power supply system of claim 6, wherein, The connecting wire also includes: At least two resistor branches, the control component is connected to the resistor branches and is used to control the connection state of the resistor branches to characterize the current power supply parameters of the connecting wires.
10. The power supply system of claim 9, wherein, The resistor branch includes a fifth switching device and a resistor connected in series between the control component and the ground terminal.