Power supply device and control method thereof

Abstract

The application provides a power supply device and a control method thereof, and relates to the field of communication.The power supply device comprises a direct-current input power supply end, an alternating-current input power supply end, a first power supply module and a second power supply module; the input end of the first power supply module is connected with the direct-current input power supply end, the output end of the first power supply module is connected with a power receiving load, the input end of the second power supply module is connected with the alternating-current input power supply end, and the output end of the second power supply module is connected with the power receiving load; the first power supply module is used for detecting the power supply state of the direct-current input power supply end; the second power supply module is used for acquiring the power supply state of the direct-current input power supply end from the first power supply module, and determining the power supply proportion of the second power supply module to the power receiving load according to the power supply state of the direct-current input power supply end; the power supply device can fully meet the user demand, better realize uninterrupted power supply of the power supply device, improve the flexibility and the configurability of the power supply device, and thus the reliability of the power supply device is improved.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular to a power supply device and its control method. Background Technology

[0002] With the continuous development of communication network technology, fifth-generation mobile communication technology is widely used in various fields. The rated power of communication equipment and servers is increasing, and the requirements for power supply reliability are also becoming more stringent. In order to meet the high reliability requirements of communication equipment power supply, related technologies use a primary power supply and a backup power supply to power the communication equipment. When the primary power supply fails or the voltage is insufficient, it automatically switches to the backup power supply. When the power of the primary power supply is restored, it automatically switches back to the primary power supply to power the communication equipment, thus meeting the high reliability power supply requirements of the communication equipment.

[0003] However, current power supply systems either rely entirely on primary power supply or standby power supply to power communication equipment. This results in a lack of configurability and flexibility, which in turn affects the reliability of the power supply. Summary of the Invention

[0004] One objective of this application is to provide a power supply device and its control method. The aim is to fully meet user needs, better achieve uninterrupted power supply, and improve the flexibility and configurability of the power supply device, thereby enhancing its reliability.

[0005] To achieve the above objectives, this application provides a power supply device, comprising: a DC input power supply terminal, an AC input power supply terminal, a first power supply module, and a second power supply module; the input terminal of the first power supply module is connected to the DC input power supply terminal, and the output terminal of the first power supply module is connected to the powered load; the input terminal of the second power supply module is connected to the AC input power supply terminal, and the output terminal of the second power supply module is connected to the powered load; the first power supply module is used to detect the power supply status of the DC input power supply terminal; the second power supply module is used to obtain the power supply status of the DC input power supply terminal from the first power supply module, and determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal.

[0006] To achieve the above objectives, embodiments of this application also provide a control method for a power supply device, the method comprising: acquiring the power supply status of a DC input power supply terminal through a first power supply module; and determining the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal through a second power supply module.

[0007] The power supply device and control method proposed in this application embodiment have a first power supply module whose input terminal is connected to a DC input power supply terminal and whose output terminal is connected to a powered load. A second power supply module has an input terminal connected to an AC input power supply terminal and its output terminal connected to the powered load. The first power supply module is used to acquire the power supply status of the DC input power supply terminal, and the second power supply module is used to determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal. Therefore, in the power supply device proposed in this application embodiment, the first and second power supply modules are respectively connected to the powered load, i.e., they simultaneously supply power to the powered load. Determining the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal can fully match the power supply status of the DC input power supply terminal, flexibly determine the power supply ratio of the second power supply module to the powered load, and better combine the first and second power supply modules to reasonably supply power to the powered load, thereby achieving uninterrupted power supply to the powered load. This improves the flexibility and configurability of the power supply device, and thus enhances its reliability. Attached Figure Description

[0008] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, and these illustrative descriptions do not constitute a limitation on the embodiments.

[0009] Figure 1 This is a schematic diagram of a power supply device provided in the first embodiment of this application;

[0010] Figure 2 This is a schematic diagram of yet another power supply device provided in the first embodiment of this application;

[0011] Figure 3 This is a schematic diagram of the power supply device provided in the second embodiment of this application;

[0012] Figure 4 This is a schematic diagram of the power supply device provided in the third embodiment of this application;

[0013] Figure 5 This is a schematic diagram of the power supply device provided in the fourth embodiment of this application;

[0014] Figure 6 This is a schematic diagram of a power supply device provided in the fifth embodiment of this application;

[0015] Figure 7 This is a schematic diagram of yet another power supply device provided in the fifth embodiment of this application;

[0016] Figure 8 This is a schematic diagram of a power supply device provided in the sixth embodiment of this application;

[0017] Figure 9This is a schematic diagram of yet another power supply device provided in the sixth embodiment of this application;

[0018] Figure 10 This is a schematic diagram of the power supply device provided in the seventh embodiment of this application;

[0019] Figure 11 This is a flowchart of the power supply device control method provided in the eighth embodiment of this application. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are presented in the various embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the various embodiments below is for ease of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0021] The first embodiment of this application relates to a power supply device, such as... Figure 1 As shown, it specifically includes:

[0022] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply module 103, and a second power supply module 104. The input terminal of the first power supply module 103 is connected to the DC input power supply terminal 101, and its output terminal is connected to the powered load 105. The input terminal of the second power supply module 104 is connected to the AC input power supply terminal 102, and its output terminal is connected to the powered load 105.

[0023] In this embodiment, the power supply device can be a separate device, or it can be integrated with the lower-level powered load 105 into the same device. Alternatively, it can be integrated with the lower-level powered load 105 into the same device by arbitrarily combining the modules in the power supply device.

[0024] The DC input power supply terminal 101 is used to input DC power to the first power supply module 103. The AC input power supply terminal 102 is used to input AC power to the second power supply module 104. The first power supply module 103 is used to detect the power supply status of the DC input power supply terminal 101. The second power supply module 104 is used to obtain the power supply status of the DC input power supply terminal 101 from the first power supply module 103, and determine the power supply ratio of the second power supply module 104 to the powered load 105 based on the power supply status of the DC input power supply terminal 101. The power supply status of the DC input power supply terminal 101 detected by the first power supply module 103 may include, but is not limited to, the current information input by the DC input power supply terminal 101, the voltage information input by the DC input power supply terminal 101, and the power supply duration information of the DC input power supply terminal 101. The first power supply module 103 and the second power supply module 104 can each bear a portion of the power supply voltage to the powered load 105, thereby realizing current sharing or a certain proportion of power supply to the powered load 105 by the first power supply module 103 and the second power supply module 104.

[0025] It is understandable that the first power supply module 103 can also be called a power input module (Power Entry Module, abbreviated as PEM power supply module). The second power supply module 104 can also be called an AC / DC power supply module.

[0026] In one example, the power supply device proposed in the first embodiment of this application can be as follows: Figure 2 As shown, the details are as follows:

[0027] One end of the DC input power supply terminal 101 is connected to the first power supply module 103, and the other end is connected to the converter, i.e. Figure 1 The AC / DC converter 107 and battery pack 108 are connected. When AC mains power 106 enters the power supply device proposed in this application, it can first pass through the AC / DC converter 107 to convert the AC mains power into DC power and store it in the battery pack 108. The DC input power supply terminal 101 obtains the DC power output from the converter 107 or the DC power provided by the battery pack 108 and inputs it into the first power supply module 103. Even if the AC mains power fails, the power supply device of this embodiment can still use the DC power stored in the battery pack 108 to supply power to the powered load 105 and meet the power supply needs of the powered load 105.

[0028] In one example, there can be multiple AC / DC converters 107 and multiple battery packs 108, which can effectively increase the conversion capability of the AC / DC converter, increase the energy storage capacity of the battery pack, and at the same time increase the power supply capability of the DC input power supply terminal, further ensuring uninterrupted power supply to the power supply device.

[0029] One end of the AC input power supply terminal 102 is connected to the second power supply module 104, and the other end is directly connected to the AC mains power 106. When the AC mains power 106 enters the power supply device proposed in this application, it can be directly supplied to the AC input power supply terminal 102, which then inputs the AC power provided by the AC mains power 106 to the second power supply module 104. AC mains power is easy to transmit and also easy to convert.

[0030] In one example, the first power supply module 103 and the second power supply module 104 communicate using a local area network. After the first power supply module 103 obtains the power supply status of the DC input power supply terminal 101, it encapsulates it into a data packet and sends it to the second power supply module 104 through the local area network. After receiving the data packet, the second power supply module 104 decapsulates the data packet and obtains the power supply status of the DC input power supply terminal 101.

[0031] For example, if the first power supply module 103 detects that the battery pack 108 connected to the DC input power supply terminal 101 has a low power storage capacity, the first power supply module 103 informs the second power supply module 104 of the low power storage capacity of the battery pack 108, and the second power supply module 104 increases the power supply ratio of the second power supply module 104 based on this information.

[0032] Understandable Figure 2 In the process, the first power supply module 103 and the second power supply module 104 are both independently connected to the powered load 105. The powered load 105 can be configured to collect the power supply voltage output by the first power supply module 103 and the second power supply module 104, thereby realizing the power supply to the powered load 105.

[0033] The power supply device proposed in the first embodiment of this application has a first power supply module whose input terminal is connected to a DC input power supply terminal and whose output terminal is connected to a powered load. A second power supply module has its input terminal connected to an AC input power supply terminal and its output terminal connected to the powered load. The first power supply module is used to acquire the power supply status of the DC input power supply terminal, and the second power supply module is used to determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal. Therefore, in the power supply device proposed in this application, the first and second power supply modules are connected to the powered load simultaneously, meaning they supply power to the powered load at the same time. Determining the power supply ratio of the second power supply module to the powered load based on the power supply information from the DC input power supply terminal can fully meet the needs of the powered load, better achieve uninterrupted power supply, and improve the flexibility and configurability of the power supply device, thereby improving its reliability.

[0034] The second embodiment of this application relates to a power supply device, such as... Figure 3 As shown, it specifically includes:

[0035] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply module 103, and a second power supply module 104. The first power supply module 103 includes a detection unit 1031 and a direct-through unit 1032. The second power supply module 104 includes a conversion unit 1041 and an adjustment unit 1042. The input terminal of the detection unit 1031 is connected to the DC input power supply terminal 101, and its first output terminal is connected to the input terminal of the direct-through unit 1032. The output terminal of the direct-through unit 1032 is connected to the powered load 105. The input terminal of the conversion unit 1041 is connected to the AC input power supply terminal 102, and its output terminal is connected to the first input terminal of the adjustment unit 1042. The output terminal of the adjustment unit 1042 is connected to the powered load 105.

[0036] The detection unit 1031 is used to detect the power supply status of the DC input power supply terminal 101.

[0037] Specifically, in addition to receiving DC power from the DC power input terminal 101, the detection unit 1031 can also detect the power supply status of the DC power input terminal 101, wherein the power supply status includes the voltage and / or current input to the DC power input terminal 101.

[0038] The pass-through unit 1032 is used to perform voltage and / or current tracking on the voltage and / or current input to the DC input power supply terminal 101 and to supply power to the powered load 105.

[0039] Specifically, considering that related technologies use DC / DC power module isolation conversion technology to supply power to the load, as the rated power of the load increases, due to the space limitations of the load itself, the DC / DC power module cannot significantly increase the power density without changing the structural size of the load. However, in the implementation of this application, the through unit 1032 adopts a through design, with its input and output being essentially equal. The through unit can follow the voltage and / or current input to the DC input power supply terminal 101, improving the load-carrying capacity of the power supply device. The through circuit has high conversion efficiency and low heat dissipation, theoretically allowing for unlimited power increases while reducing power supply costs, thus significantly improving the power supply capacity of the power supply device.

[0040] In one example, the pass-through unit 1032 includes several voltage followers that follow the input voltage so that the output voltage is approximately equal to the input voltage, that is, the voltage gain is approximately 1. Using voltage follower technology can make impedance matching more favorable and improve the load-carrying capacity of the power supply system. Necessary voltage protection, such as relay protection, can also be performed after the voltage follower.

[0041] The conversion unit 1041 is used to convert the AC power input to the AC power input terminal 102 into DC power.

[0042] Specifically, the conversion unit 1041 receives AC power from the AC input power supply terminal 102 and converts it into DC power through its own AC / DC conversion function, which is then supplied to the regulating unit 1042 for use by the powered load 105, thus fully meeting the power supply requirements of the powered load 105. It can be understood that the conversion unit 1041 can also be called an AC-DC conversion unit.

[0043] In one example, the conversion unit 1041 may include several AC / DC converters. The AC power input from the AC input power supply terminal 102 enters the several AC / DC converters inside the conversion unit 1041 to convert the AC power into DC power.

[0044] The adjustment unit 1042 is used to obtain the power supply status of the DC input power supply terminal 101 from the detection unit 1031, and determine the power supply ratio of the second power supply module 104 to the powered load 105 based on the power supply status of the DC input power supply terminal 101 and the DC power converted by the conversion unit 1041.

[0045] Specifically, the adjustment unit 1042 can receive the power supply status of the DC input power supply terminal 101 obtained by the detection unit 1031, and determine the power supply ratio of the second power supply module 104 to the powered load 105 based on the power supply status of the DC input power supply terminal 101 and the DC power converted by the conversion unit 1041.

[0046] In one example, the regulating unit 1042 and the detection unit 1031 communicate using a local area network. After the detection unit 1031 obtains the power supply status of the DC input power supply terminal 101, it encapsulates it into a data packet and sends it to the regulating unit 1042 through the local area network. After receiving the data packet, the regulating unit 1042 decapsulates the data packet and obtains this information.

[0047] For example, the detection unit 1031 detects that the battery pack connected to the DC input power supply terminal 101 has a low power level, and informs the adjustment unit 1042 of this information. The adjustment unit 1042 then increases the power supply ratio of the second power supply module 104 based on this information.

[0048] In one example, the regulating unit 1042 can determine the voltage difference between the voltage input to the DC input power supply terminal 101 and the voltage of the converted DC power, and determine the power supply ratio of the second power supply module 104 to the powered load 105 based on the voltage difference. If the voltage difference is 0, the first power supply module 103 and the second power supply module 104 supply power to the powered load 105 by equal current sharing, that is, the input current of the first power supply module 103 and the second power supply module 104 to the powered load 105 is equal. The regulating unit 1042 has a preset maximum allowable voltage difference. If the voltage difference is greater than 0 and less than the maximum allowable voltage difference, the first power supply module 103 and the second power supply module 104 can also supply power to the powered load 105 by equal current sharing. If the voltage difference is greater than or equal to the maximum allowable voltage difference, the regulating unit 1042 can determine the input current of the first power supply module 103 and the second power supply module 104 to the powered load 105 based on the voltage difference, wherein the input current is larger for the power supply module with higher voltage and smaller for the power supply module with lower voltage. It is understandable that the power supply ratio of the second power supply module 104 to the powered load 105 determined based on the voltage difference can be the power supply current ratio of the second power supply module 104 to the powered load 105.

[0049] For example, the powered load 105 is a standard communication device requiring 54V. The regulating unit 1042 has a preset maximum allowable voltage difference, which can be set to 2V. When both the first power supply module 103 and the second power supply module 104 provide 54V to the powered load 105, the power supply voltage ratio is 50%:50%. If the power supply voltage of the first power supply module 103 decreases from 54V to 51V, the voltage difference between the first power supply module 103 and the second power supply module 104 becomes 3V, which is greater than the maximum allowable voltage difference. Therefore, the power supply voltage ratio of the first power supply module 103 and the second power supply module 104 to the powered load 105 is adjusted to 0%:100%. The determined supply current for the second power supply module 104 with its higher voltage is greater than the determined supply current for the first power supply module 103 with its lower voltage. That is, the second power supply module 104 with its higher voltage provides a larger input current to the powered load. The preset maximum allowable voltage difference can be set by those skilled in the art according to actual needs. This embodiment only uses 2V as an example, and it is not limited to this in specific implementations.

[0050] In another example, the adjustment unit 1042 can determine the voltage difference between the voltage input to the DC input power supply terminal 101 and the voltage of the converted DC power, and determine the power supply ratio of the second power supply module 104 to the powered load 105 based on the voltage difference and the preset current upper limit value of the first power supply module 103. The preset current upper limit value can be set according to actual needs.

[0051] For example, the powered load 105 is a standard communication device requiring 54V voltage and 10A current. The first power supply module 104 has a preset current limit of 8A, and the adjustment unit 1042 has a preset maximum allowable voltage difference, for example, this maximum allowable voltage difference can be set to 2V. When both the first power supply module 103 and the second power supply module 104 provide 54V voltage to the powered load 105, the power supply voltage ratio is 50%:50%, and the power supply current ratio is also 50%:50%. If the power supply voltage of the second power supply module 104 decreases from 54V to 51V, the voltage difference between the first power supply module 103 and the second power supply module 104 becomes 3V, which is greater than the maximum allowable voltage difference. Therefore, the power supply voltage ratio between the first power supply module 103 and the second power supply module 104 is adjusted to 100%:0%, and the first power supply module 103 and the second power supply module 104 cannot supply power equally. Since the maximum current of the first power supply module 104 is 8A, meaning it can provide a maximum of 8A of current to the powered load 105, the output current of the second power supply module 104 can be controlled to provide 2A of current to the powered load 105, thus meeting the 10A power supply requirement of the powered load 105. In this case, the power supply current ratio of the first power supply module 104 to the second power supply module 105 is 80%:20%. In practice, the power supply ratio of each power supply module to the powered load 105 can be dynamically adjusted until the current of the powered load 105 reaches a relatively stable level, and the adjustment of the power supply ratio of each power supply module to the powered load 105 also reaches a relatively stable level.

[0052] The power supply device proposed in the second embodiment of this application includes a first power supply module comprising a detection unit and a direct-connect unit. The input terminal of the detection unit is connected to a DC input power supply terminal, and the first output terminal of the detection unit is connected to the input terminal of the direct-connect unit. The output terminal of the direct-connect unit is connected to the powered load. The detection unit is used to acquire the power supply status of the DC input power supply terminal. The direct-connect unit is used to perform voltage and / or current tracking on the voltage and / or current input from the DC input power supply terminal and supply power to the powered load. The direct-connect design has high conversion efficiency and low heat dissipation, theoretically allowing for unlimited power increases while reducing power supply costs, thus significantly improving the power supply capacity of the power supply device. The input terminal of the conversion unit is connected to an AC input power supply terminal, and the output terminal of the conversion unit is connected to the first input terminal of the regulating unit. The output terminal of the regulating unit is connected to the powered load. The conversion unit is used to convert the AC power input from the AC input power supply terminal into DC power, which can fully meet the power supply requirements of the powered load. The regulating unit is used to determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal, making the division of labor in the entire power supply device clearer and more rational.

[0053] The third embodiment of this application relates to a power supply device. This embodiment is largely the same as the second embodiment, except that the second output terminal of the detection unit is connected to the second input terminal of the adjustment unit, such as... Figure 4 As shown, it specifically includes:

[0054] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply module 103, and a second power supply module 104. The first power supply module 103 includes a detection unit 1031 and a direct-through unit 1032. The second power supply module 104 includes a conversion unit 1041 and an adjustment unit 1042. The input terminal of the detection unit 1031 is connected to the DC input power supply terminal 101. The first output terminal of the detection unit 1031 is connected to the input terminal of the direct-through unit 1032. The second output terminal of the detection unit 1031 is connected to the second input terminal of the adjustment unit 1042. The output terminal of the direct-through unit 1032 is connected to the powered load 105. The input terminal of the conversion unit 1041 is connected to the AC input power supply terminal 102. The output terminal of the conversion unit 1041 is connected to the first input terminal of the adjustment unit 1042. The output terminal of the adjustment unit 1042 is connected to the powered load 105.

[0055] The detection unit 1031 is also used to send the power supply status of the DC input power supply terminal 101 to the adjustment unit 1042.

[0056] Specifically, after detecting the power supply status of the DC input power supply terminal 101, the detection unit 1031 can send the power supply status of the DC input power supply terminal 101 to the adjustment unit 1042.

[0057] The adjustment unit 1042 is also used to receive the power supply status of the DC input power supply terminal 101 sent by the detection unit 1031, and determine the power supply ratio of the second power supply module 104 to the powered load 105 according to the power supply status of the DC input power supply terminal 101 and the DC power converted by the conversion unit 1041.

[0058] In a specific implementation, the detection unit 1031 and the adjustment unit 1042 are directly connected to transmit the power supply status of the DC input power supply terminal 101, which can increase the accuracy of information interaction within the power supply device, thereby further increasing the reliability of the power supply device.

[0059] In one example, the detection unit 1031 and the adjustment unit 1042 are directly connected by a wire. After the detection unit 1031 detects the power supply status of the DC input power supply terminal 101, it generates a first control signal and transmits it to the adjustment unit 1042 in the form of an electrical signal through the wire between the detection unit 1031 and the adjustment unit 1042. After receiving the first control signal, the adjustment unit 1042 determines the power supply ratio of the second power supply module 104 to the powered load 105 based on the first control signal and the converted DC power.

[0060] The power supply device proposed in the third embodiment of this application has a second output terminal of the detection unit connected to the second input terminal of the adjustment unit. The detection unit is also used to send the power supply status of the DC input power supply terminal to the adjustment unit. The adjustment unit is also used to receive the power supply status of the DC input power supply terminal sent by the detection unit, and determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal and the converted DC power. This can increase the accuracy of information interaction within the power supply device, thereby further increasing the reliability of the power supply device.

[0061] The fourth embodiment of this application relates to a power supply device, such as... Figure 5 As shown, it specifically includes:

[0062] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply module 103, and a second power supply module 104. The first power supply module 103 includes a detection unit 1031 and a direct-through unit 1032. The second power supply module 104 includes a conversion unit 1041 and an adjustment unit 1042. The input terminal of the detection unit 1031 is connected to the DC input power supply terminal 101. The first output terminal of the detection unit 1031 is connected to the input terminal of the direct-through unit 1032. The second output terminal of the detection unit 1031 is connected to the second input terminal of the adjustment unit 1042. The output terminal of the direct-through unit 1032 is connected to the powered load 105. The input terminal of the conversion unit 1041 is connected to the AC input power supply terminal 102. The output terminal of the conversion unit 1041 is connected to the first input terminal of the adjustment unit 1042. The output terminal of the adjustment unit 1042 is connected to the powered load 105. The powered load 105 is connected to the first power supply module 103 and the second power supply module 104 via a control bus.

[0063] The powered load 105 is also used to acquire the load information of the powered load and send the load information to the second power supply module 104.

[0064] In specific implementation, considering that different communication devices have different application scenarios and functions, their power supply requirements are also different. In this embodiment, the powered load 105 can obtain the load information of the powered load and send the load information to the second power supply module 104. The load information includes, but is not limited to, the model, rated voltage and rated power of the powered load.

[0065] The second power supply module 104 is also used to receive load information sent by the powered load 105, and adjust the power supply ratio of the second power supply module 104 to the powered load 105 according to the load information.

[0066] In one example, the powered load 105 and the second power supply module 104 can communicate via a local area network. After the powered load 105 obtains the load information of the powered load, it encapsulates it into a data packet and sends it to the second power supply module 104 via the local area network. After receiving the data packet, the power supply device 406 decapsulates the data packet and obtains the information.

[0067] For example, the powered load 105 is a standard communication device that requires 10A of current, with a preset current limit of 8A. The second power supply module 104 provides 8A of current to the powered load 105, and the first power supply module 103 provides 2A of current to the powered load 105. If the current required by the powered load increases to 13A, then the first power supply module 103 is adjusted to provide 5A of current to the powered load 105.

[0068] In another example, after the powered load 105 obtains the load information of the powered load, it generates a second control signal based on the load information. The second control signal is transmitted to the second power supply module 104 in the form of an electrical signal via the wire between the feedback circuit and the second power supply module 104. After receiving the second control signal, the second power supply module 104 adjusts the power supply ratio of the second power supply module 104 to the powered load 105 according to the second control signal.

[0069] The power supply device proposed in the fourth embodiment of this application further includes a powered load for acquiring load information of the powered load and sending the load information to a second power supply module. The second power supply module is further used to receive the load information sent by the powered load and adjust the power supply ratio of the second power supply module to the powered load according to the load information. This can make the power supply device more in line with the actual situation of the powered load and make the power supply device more reasonable.

[0070] The fifth embodiment of this application relates to a power supply device, such as... Figure 6 As shown, it specifically includes:

[0071] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply group 203, and a second power supply group 204. The input terminal of the first power supply group 203 is connected to the DC input power supply terminal 101, and the output terminal of the first power supply group 203 is connected to the powered load 105. The input terminal of the second power supply group 204 is connected to the AC input power supply terminal 102, and the output terminal of the second power supply group 204 is connected to the powered load 105. The first power supply group 203 includes several first power supply modules, and the second power supply group 204 includes several second power supply modules.

[0072] The first power supply group 203 is used to detect the power supply status of the DC input power supply terminal 101.

[0073] Specifically, in addition to receiving DC power from the DC input power supply terminal 101, the first power supply group 203 can also detect the power supply status of the DC input power supply terminal 101. Optionally, the power supply status of the DC input power supply terminal 101 can be detected by any one of the first power supply modules in the first power supply group 203; however, this embodiment does not specifically limit this.

[0074] In a specific implementation, the power supply status of the DC input power supply terminal 101 detected by the first power supply group 203 includes, but is not limited to: the current information input to the DC input power supply terminal 101, the voltage information input to the DC input power supply terminal 101, and the power supply duration information of the DC input power supply terminal 101.

[0075] The second power supply group 204 is used to obtain the power supply status of the DC input power supply terminal 101 from the first power supply group 203, and determine the power supply ratio of the second power supply group 204 to the powered load 105 according to the power supply status of the DC input power supply terminal 101.

[0076] Specifically, in addition to receiving AC power from the AC input power supply terminal 102, the second power supply group 204 can also obtain the power supply status of the DC input power supply terminal 101 from the first power supply group 203, and determine the power supply ratio of the second power supply group 204 to the powered load 105 based on the power supply status of the DC input power supply terminal 101.

[0077] In a specific implementation, when adjusting the power supply ratio of the second power supply group 204 to the powered load 105, the power supply ratio of several second power supply modules within the second power supply group 204 can be adjusted, which can further improve the power supply capacity of the power supply device and also improve the flexibility and configurability of the power supply device.

[0078] In one example, the power supply device proposed in the fifth embodiment of this application can be as follows: Figure 7 As shown, the details are as follows:

[0079] The powered load 105 is connected to the first power supply group 203 and the second power supply group 204 via the control bus, that is, it is connected to several first power supply modules and several second power supply modules.

[0080] The second power supply group 204 is also used to receive load information sent by the powered load 105, and determine the start-up status of several second power supply modules based on the load information. The start-up status includes an on state and a off state.

[0081] For example, the powered load 105 is used in a home network and has a very small rated power. It does not require all the second power supply modules to supply power to the powered load. The powered load 105 sends the load information of the powered load to the second power supply group 204. The second power supply group 204 receives the load information and shuts down some of the second power supply modules in the second power supply group.

[0082] The power supply device proposed in the fifth embodiment of this application includes a plurality of first power supply modules, which form a first power supply group; and a plurality of second power supply modules, which form a second power supply group. The plurality of second power supply modules are used to obtain the power supply status of the DC input power supply terminal from the first power supply modules, and determine the power supply ratio of each second power supply module to the powered load based on the power supply status of the DC input power supply terminal. This can further improve the power supply capacity of the power supply device, and also improve the flexibility and configurability of the power supply device. The powered load is also used to obtain the load information of the powered load and send the load information to the plurality of second power supply modules; the plurality of second power supply modules are also used to receive the load information and determine the start-up status of the plurality of second power supply modules based on the load information; wherein the start-up status includes an on state and a off state, further improving the flexibility and configurability of the power supply device.

[0083] The sixth embodiment of this application relates to a power supply device, such as... Figure 8 As shown, it specifically includes:

[0084] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply module 103, and a second power supply module 104. The input terminal of the first power supply module 103 is connected to the DC input power supply terminal 101, and its output terminal is connected to the powered load 105. The input terminal of the second power supply module 104 is connected to the AC input power supply terminal 102, and its output terminal is connected to the powered load 105. The first power supply module 103 and the second power supply module 104 have a bidirectional connection.

[0085] The first power supply module 103 is also used to detect the working status of the second power supply module 104. If the second power supply module 104 cannot work properly, the first power supply module 103 supplies power to the powered load 105 alone.

[0086] Specifically, when the power supply device starts supplying power, the first power supply module 103 can detect the working status of the second power supply module 104 in real time. When the AC mains power fails or causes the second power supply module 104 to malfunction, the first power supply module 103 can supply power to the powered load 105 independently.

[0087] In one example, the internal components of the second power supply module 104 are short-circuited and cannot work properly. The first power supply module 103 detects the abnormal state of the second power supply module 104 and adjusts the power supply device to be powered entirely by the first power supply module 103, that is, the first power supply module 103 supplies power to the powered load 105 at a 100% ratio.

[0088] The second power supply module 104 is also used to detect the working status of the first power supply module 103. If the first power supply module 103 fails to work properly, the second power supply module 104 supplies power to the powered load 105 alone, that is, the second power supply module 104 supplies power to the powered load 105 at a 100% ratio. If there are several second power supply modules 104, each of the several second power supply modules can also undertake a portion of the power supply ratio to jointly supply power to the powered load 105.

[0089] Specifically, when the power supply device starts to supply power, the second power supply module 104 can detect the working status of the first power supply module 103 in real time. When the battery pack fails or causes the first power supply module 103 to malfunction, the second power supply module 104 can supply power to the powered load 105 independently.

[0090] In one example, the internal components of the first power supply module 103 short-circuit and cannot work properly. The second power supply module 104 detects the abnormal state of the first power supply module 103 and adjusts the power supply device so that the second power supply module 104 provides all the power.

[0091] In a specific implementation, the power supply device involved in the sixth embodiment of this application can also be as follows: Figure 9 As shown, it specifically includes:

[0092] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply group 203, and a second power supply group 204. The input terminal of the first power supply group 203 is connected to the DC input power supply terminal 101, and the output terminal of the first power supply group 203 is connected to the powered load 105. The input terminal of the second power supply group 204 is connected to the AC input power supply terminal 102, and the output terminal of the second power supply group 204 is connected to the powered load 105. The first power supply group 203 includes several first power supply modules, and the second power supply group 204 includes several second power supply modules. The first and second power supply modules are connected via a bus, allowing them to detect each other's operating status and switch power supply modes promptly when a fault is detected in a power supply module.

[0093] In other words, this embodiment can realize the switching of power supply mode and the control and adjustment of the power supply ratio between different power supply modes. For example, when a power supply module loses power, the power supply mode can be switched to the normal power supply module, and the power supply ratio can be controlled and adjusted again. This can meet different needs, improve the configurability, flexibility, reliability and security of power supply, and adapt to a wider range of application scenarios.

[0094] The power supply device proposed in the sixth embodiment of this application includes a first power supply module that further detects the operating status of the second power supply module. If the second power supply module fails to operate normally, the first power supply module supplies power to the energized load independently. The second power supply module also detects the operating status of the first power supply module; if the first power supply module fails to operate normally, the second power supply module supplies power to the energized load independently. If one power supply module fails to operate normally, the operating power supply module can supply power to the energized load independently, ensuring uninterrupted power supply and further improving the reliability of the power supply device while protecting the energized load.

[0095] The seventh embodiment of this application relates to a power supply device, such as... Figure 10 As shown, it specifically includes:

[0096] The system includes a DC input power supply terminal 101, an AC input power supply terminal 102, a first power supply module 103, and a second power supply module 104. The input terminal of the first power supply module 103 is connected to the DC input power supply terminal 101, and the input terminal of the second power supply module 104 is connected to the AC input power supply terminal 102. The output terminals of the first power supply module 103 and the second power supply module 104 are combined and connected as the output terminal of the power supply device, which is then connected to the power receiving module 105.

[0097] The output terminals of the first power supply module 103 and the second power supply module 104 are combined and connected to form the output terminals of the power supply device, thus forming a combined circuit design. After the circuit is combined, it is connected to the powered load 105 to supply power to the powered load 105.

[0098] The power supply device proposed in the seventh embodiment of this application has a combined connection between the output terminals of the first power supply module and the second power supply module, which serves as the output terminal of the power supply device and is connected to the powered load. Considering the different internal structures and power supply requirements of different communication devices, the power supply device of this embodiment can further improve the flexibility and configurability of the power supply device and is applicable to various power supply environments.

[0099] It should be noted that the seventh embodiment of this application may also be an improvement on the second, third, fourth, fifth, and sixth embodiments.

[0100] The eighth embodiment of this application relates to a control method for a power supply device, such as... Figure 11 As shown, it specifically includes:

[0101] Step 301: Obtain the power supply status of the DC input power supply terminal through the first power supply module;

[0102] Step 302: The second power supply module determines the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal.

[0103] Step 303: Power the powered load through the first power supply module and the second power supply module.

[0104] It is not difficult to see that this embodiment is a control method embodiment corresponding to the first to seventh embodiments, and this embodiment can be implemented in conjunction with the first to seventh embodiments. The relevant technical details and technical effects mentioned in the first to seventh embodiments are still valid in this embodiment, and will not be repeated here to reduce repetition. Accordingly, the relevant technical details mentioned in this embodiment can also be applied to the first to seventh embodiments.

[0105] Those skilled in the art will understand that the above embodiments are specific embodiments for implementing this application, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of this application.

Claims

1. A power supply device, characterized in that, include: DC input power supply terminal, AC input power supply terminal, first power supply module and second power supply module; The input terminal of the first power supply module is connected to the DC input power supply terminal, and the output terminal of the first power supply module is connected to the powered load. The input terminal of the second power supply module is connected to the AC input power supply terminal, and the output terminal of the second power supply module is connected to the powered load. The first power supply module and the second power supply module communicate via a network; The first power supply module is used to detect and send the power supply status of the DC input power supply terminal to the second power supply module; The second power supply module is used to determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal; The first power supply module and the second power supply module detect each other's working status; The first power supply module is also used to detect the working status of the second power supply module. If the second power supply module cannot work properly, the first power supply module is used to supply power to the powered load alone. The second power supply module is also used to detect the working status of the first power supply module. If the first power supply module cannot work properly, the second power supply module is used to supply power to the powered load separately.

2. The power supply device according to claim 1, characterized in that, The first power supply module includes a detection unit and a through unit; The input terminal of the detection unit is connected to the DC input power supply terminal, the first output terminal of the detection unit is connected to the input terminal of the through unit, and the output terminal of the through unit is connected to the powered load. The detection unit is used to detect the power supply status of the DC input power supply terminal; wherein, the power supply status includes the voltage and / or current input to the DC input power supply terminal; The pass-through unit is used to perform voltage and / or current tracking on the voltage and / or current input to the DC input power supply terminal and to supply power to the powered load.

3. The power supply device according to claim 2, characterized in that, The second power supply module includes a conversion unit and a regulation unit: The input terminal of the conversion unit is connected to the AC input power supply terminal, the output terminal of the conversion unit is connected to the first input terminal of the regulating unit, and the output terminal of the regulating unit is connected to the powered load. The conversion unit is used to convert the AC power input from the AC input power supply terminal into DC power. The adjustment unit is used to obtain the power supply status of the DC input power supply terminal from the detection unit, and determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal and the converted DC power.

4. The power supply device according to claim 3, characterized in that, The second output terminal of the detection unit is connected to the second input terminal of the adjustment unit; The detection unit is also used to send the power supply status of the DC input power supply terminal to the adjustment unit; The adjustment unit is also used to receive the power supply status of the DC input power supply terminal sent by the detection unit, and determine the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal and the converted DC power.

5. The power supply device according to claim 4, characterized in that, The power supply status includes the voltage input to the DC input power supply terminal; The adjustment unit is also used to determine the voltage difference between the voltage input to the DC input power supply terminal and the voltage of the converted DC power, and to determine the power supply ratio of the second power supply module to the powered load based on the voltage difference.

6. The power supply device according to claim 1, characterized in that, The powered load is also used to send load information to the second power supply module; The second power supply module adjusts the power supply ratio of the second power supply module to the powered load according to the load information.

7. The power supply device according to claim 1, characterized in that, The number of the second power supply modules is several; The plurality of second power supply modules are used to obtain the power supply status of the DC input power supply terminal from the first power supply module, and determine the power supply ratio of each second power supply module to the powered load based on the power supply status of the DC input power supply terminal.

8. The power supply device according to claim 7, characterized in that, The powered load is also used to acquire the load information of the powered load and send the load information to the plurality of second power supply modules; The plurality of second power supply modules are further configured to receive the load information and determine the startup state of the plurality of second power supply modules based on the load information; wherein the startup state includes an on state and a off state.

9. A control method for a power supply device, characterized in that, The method for controlling the power supply device as described in any one of claims 1 to 8 includes: The power supply status of the DC input power supply terminal is detected by the first power supply module; The second power supply module obtains the power supply status of the DC input power supply terminal from the first power supply module, and determines the power supply ratio of the second power supply module to the powered load based on the power supply status of the DC input power supply terminal.

Images