SERVER POWER SUPPLY UNIT AND ELECTRONIC DEVICE

Abstract

Provided in the present application are a server power source and an electronic device. The server power source comprises a DC-DC circuit, which comprises a direct-current filter circuit, a first resonance circuit and a first control circuit, wherein an input end and a first output end of the direct-current filter circuit are respectively connected to a high-voltage direct-current input end and an input end of the first resonance circuit, and a first output end of the first resonance circuit outputs a first low-voltage direct current; a second output end of the direct-current filter circuit and a second output end of the first resonance circuit are respectively connected to a first controller and a second controller of the first control circuit; and a third output end of the direct-current filter circuit is connected to an input end of a first auxiliary power source circuit, and a first output end and a second output end of the first auxiliary power source circuit respectively output a second low-voltage direct current and a third low-voltage direct current. Provided is a server power source that outputs a direct current after a direct current is input, and the server power source supports usage on a direct-current power supply site, overcomes an existing defect whereby direct-current power supply is not supported, and expands the usage range of the power source.

Description

Server power supplies and electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 10, 2024, with application number 202410038353.4 and application name “Server Power Supply and Electronic Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of power supply technology, and in particular to a server power supply and electronic equipment. Background Art

[0003] The function of a server power supply is to convert one electrical energy parameter into other electrical energy parameters to achieve constant voltage (voltage transformation), constant current, constant power, etc., such as mobile phone chargers, laptop adapters, computer power supplies, etc.

[0004] Currently, almost all server power supplies input AC power and output DC power, and the power supply structure is a single, inseparable unit. However, in some use cases, the site supports DC power supply, making server power supplies that only support AC input unusable, affecting the user experience. Summary of the Invention

[0005] The present application provides a server power supply and electronic equipment that can support use in power supply sites with DC input, overcoming the defect that existing server power supplies only support AC input.

[0006] In a first aspect, the present application provides a server power supply, comprising: a DC-DC circuit, wherein the DC-DC circuit comprises a DC filter circuit, a first resonant circuit, and a first control circuit;

[0007] The input end of the DC filter circuit is connected to the high-voltage DC power input end, the first output end of the DC filter circuit is connected to the input end of the first resonant circuit, and the first output end of the first resonant circuit outputs a first low-voltage DC power;

[0008] The second output end of the DC filter circuit is connected to the first controller in the first control circuit, the second output end of the first resonant circuit is connected to the second controller in the first control circuit, and the first controller and the second controller in the first control circuit are in communication connection;

[0009] The third output terminal of the DC filter circuit is connected to the input terminal of the first auxiliary power supply circuit. The first output terminal and the second output terminal of the first auxiliary power supply circuit output the second low-voltage DC power and the third low-voltage DC power respectively.

[0010] In one possible design, the DC-DC circuit further includes: a first power factor correction (PFC) drive circuit and a first PFC feedback circuit;

[0011] The second output end of the DC filter circuit is connected to the first controller in the first control circuit, including:

[0012] The second output end of the DC filter circuit is connected to the output end of the first PFC drive circuit and the input end of the first PFC feedback circuit respectively. The input end of the first PFC drive circuit and the output end of the first PFC feedback circuit are connected to the first controller in the first control circuit.

[0013] In one possible design, the first resonant circuit includes a first LLC main circuit, a first LLC drive circuit, and a first LLC feedback circuit;

[0014] The input end of the first LLC main circuit is the input end of the first resonant circuit, the first output end of the first LLC main circuit is the first output end of the first resonant circuit, the second output end of the first LLC main circuit is respectively connected to the output end of the first LLC drive circuit and the input end of the first LLC feedback circuit, the input end of the first LLC drive circuit and the output end of the first LLC feedback circuit are connected to the second output end of the first resonant circuit and the second controller in the first control circuit.

[0015] In one possible design, the first low-voltage direct current is used to power the computing board of the server, the second low-voltage direct current is used to power the control board of the server, and the third low-voltage direct current is used to power the internal power supply of the server.

[0016] In one possible design, the first controller and the second controller in the first control circuit are further connected to external control input terminals, respectively, and the external control input terminals are communicatively connected to the computing power board and the control board.

[0017] In one possible design, the device further includes: an AC-DC circuit, wherein the AC-DC circuit includes an AC filter circuit, a power factor correction (PFC) circuit, a second resonant circuit, and a second control circuit;

[0018] The input end of the AC filter circuit is connected to the high-voltage AC power input end, the output end of the AC filter circuit is connected to the input end of the PFC circuit, the first output end of the PFC circuit is connected to the input end of the second resonant circuit, and the first output end of the second resonant circuit outputs a fourth low-voltage DC power;

[0019] The second output end of the PFC circuit is connected to the first controller in the second control circuit, the second output end of the second resonant circuit is connected to the second controller in the second control circuit, and the first controller and the second controller in the second control circuit are in communication connection;

[0020] The third output terminal of the PFC circuit is connected to the input terminal of the second auxiliary power supply circuit, and the first output terminal and the second output terminal of the second auxiliary power supply respectively output the fifth low-voltage direct current and the sixth low-voltage direct current.

[0021] In one possible design, the PFC circuit includes a PFC main circuit, a second PFC drive circuit, and a second PFC feedback circuit;

[0022] The input end of the PFC main circuit is the input end of the PFC circuit, the first output end of the PFC main circuit is the first output end of the PFC circuit, and the third output end of the PFC main circuit is the third output end of the PFC circuit;

[0023] The second output end of the PFC main circuit is connected to the output end of the second PFC drive circuit and the input end of the second PFC feedback circuit respectively. The input end of the second PFC drive circuit and the output end of the second PFC feedback circuit are connected to the first controller in the second control circuit via the second output end of the PFC circuit.

[0024] In one possible design, the second resonant circuit includes a second LLC main circuit, a second LLC drive circuit, and a second LLC feedback circuit;

[0025] The input end of the second LLC main circuit is the input end of the second resonant circuit, the first output end of the second LLC main circuit is the first output end of the second resonant circuit, the second output end of the second LLC main circuit is respectively connected to the output end of the second LLC drive circuit and the input end of the second LLC feedback circuit, the input end of the second LLC drive circuit and the output end of the second LLC feedback circuit are connected to the second output end of the second resonant circuit and the second controller in the second control circuit.

[0026] In one possible design, the fourth low-voltage direct current is used to power the computing board of the server, the fifth low-voltage direct current is used to power the control board of the server, and the sixth low-voltage direct current is used to power the internal power supply of the server.

[0027] In one possible design, the DC-DC circuit is deployed on any side of the server power supply.

[0028] In a second aspect, the present application provides an electronic device, comprising a server and any possible server power supply provided in the first aspect, wherein the server is communicatively connected to the server power supply.

[0029] The present application provides a server power supply and electronic equipment, the server power supply including a DC-DC circuit, the DC-DC circuit including a DC filter circuit, a first resonant circuit, and a first control circuit. The input end of the DC filter circuit is connected to the high-voltage DC input end, the first output end of the DC filter circuit is connected to the input end of the first resonant circuit, and the first output end of the first resonant circuit outputs a first low-voltage DC power. The second output end of the DC filter circuit is connected to the first controller in the first control circuit, the second output end of the first resonant circuit is connected to the second controller in the first control circuit, and the first controller and the second controller in the first control circuit are in communication connection. The third output end of the DC filter circuit is connected to the input end of the first auxiliary power supply circuit, and the first output end and the second output end of the first auxiliary power supply circuit respectively output a second low-voltage DC power and a third low-voltage DC power. A new generation server power supply that supports DC input and output (DC-DC) is provided, which supports the use of the server power supply in DC-powered sites, overcomes the defect that the server power supply does not support DC power supply, and enriches the scope of use of the server power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] FIG1 is a schematic diagram of a DC-DC circuit in a server power supply provided in an embodiment of the present application;

[0032] FIG2 is a schematic diagram of another DC-DC circuit in a server power supply provided in an embodiment of the present application;

[0033] FIG3 is a schematic diagram of an AC-DC circuit in a server power supply provided in an embodiment of the present application;

[0034] FIG4 is a schematic diagram of another AC-DC circuit in a server power supply provided in an embodiment of the present application;

[0035] FIG5 is a rear view of a server power supply provided in an embodiment of the present application;

[0036] FIG6 is a device distribution diagram of a server power supply provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of methods and apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

[0038] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the numbers used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Currently, almost all server power supplies input AC power and output DC power, and the power supply structure is a single, inseparable unit. However, in some use cases, the site supports DC power supply, making server power supplies that only support AC input unusable, affecting the user experience.

[0040] To address the aforementioned problems in the prior art, the present application provides a server power supply and electronic device. The inventive concept of the server power supply provided in this application is to design a DC-DC circuit within the server power supply, the DC-DC circuit comprising a DC filter circuit, a first resonant circuit, and a first control circuit. The DC filter circuit's input is connected to the high-voltage DC input terminal, thereby suppressing electromagnetic interference from the high-voltage DC power inputted to the high-voltage DC input terminal at the server power supply site. The first output of the DC filter circuit is connected to the input of the first resonant circuit, and the first output of the first resonant circuit outputs a first low-voltage DC power. The first resonant circuit can input high-voltage DC power and output low-voltage DC power. The first resonant circuit converts the high-voltage DC power, after electromagnetic interference has been eliminated, into a low-voltage DC power, namely, a first low-voltage DC power output. The first low-voltage DC power can provide DC power to devices external to the server power supply. Furthermore, the third output of the DC filter circuit is connected to the input of a first auxiliary power supply circuit to output the high-voltage DC power, after electromagnetic interference has been eliminated, to the first auxiliary power supply circuit. The first and second outputs of the first auxiliary power supply circuit output a second low-voltage DC power and a third low-voltage DC power, respectively. Thus, the high-voltage direct current input to the high-voltage direct current input terminal is converted into a first low-voltage direct current, a second low-voltage direct current and a third low-voltage direct current output through the DC-DC circuit, so that the server power supply can realize direct current input and direct current output, support the use of the server power supply in a DC power supply site, overcome the defect that the server power supply does not support DC power supply, and enrich the scope of use of the server power supply.

[0041] Figure 1 is a schematic diagram of a DC-DC circuit in a server power supply according to an embodiment of the present application. As shown in Figure 1 , a DC-DC circuit 100 in a server power supply according to an embodiment of the present application includes: a DC filter circuit 101, a first resonant circuit 102, and a first control circuit.

[0042] The input end of the DC filter circuit 101 is connected to the high-voltage DC input end, and the first output end of the DC filter circuit 101 is connected to the input end of the first resonant circuit 102. The first output end of the first resonant circuit 102 outputs a first low-voltage DC power. A provider of high-voltage DC power, such as a server power supply site, can provide high-voltage DC power for output to the high-voltage DC input end. The DC filter circuit 101 suppresses electromagnetic interference from the high-voltage DC power input to eliminate electromagnetic interference from the high-voltage DC power. A portion of the high-voltage DC power, which has been free of electromagnetic interference, is input to the input end of the first resonant circuit 102, and a first low-voltage DC power is output from the first output end of the first resonant circuit 102. This converts the high-voltage DC power input to the high-voltage DC input end into a first low-voltage DC power output, achieving the DC input and DC output effects of the server power supply. The first resonant circuit 102 has the function of high-voltage DC input and low-voltage DC output.

[0043] In addition, the second output end of the DC filter circuit 101 is connected to the first controller 1031 in the first control circuit, the second output end of the first resonant circuit 102 is connected to the second controller 1032 in the first control circuit, and the first controller 1031 and the second controller 1032 in the first control circuit are in communication connection.

[0044] In some embodiments, the first controller 1031 and the second controller 1032 in the first control circuit may be, for example, a microcontroller unit (MCU). The second output terminal of the DC filter circuit 101 is connected to the first controller 1031, so that the first controller 1031 can control the DC filter circuit 101. The second output terminal of the first resonant circuit 102 is connected to the second controller 1032, so that the second controller 1032 can control the first resonant circuit 102.

[0045] Optionally, in some embodiments, the first controller 1031 and the second controller 1032 may be further connected to external control input terminals, respectively, so that an external control device can input control signals to the first controller 1031 and the second controller 1032 through the external control input terminals to control the first controller 1031 and the second controller 1032. The external control input terminals may be, for example, the first external control input terminal 1071 and the second external control input terminal 1072 shown in FIG.

[0046] Continuing with FIG1 , the third output terminal of the DC filter circuit 101 is connected to the input terminal of the first auxiliary power supply circuit 104. The DC filter circuit 101 outputs a portion of the high-voltage DC power from which electromagnetic interference has been eliminated to the first auxiliary power supply circuit 104 through the third output terminal of the DC filter circuit 101 to power the first auxiliary power supply circuit 104. The first auxiliary power supply circuit 104 has the functions of high-voltage DC input and low-voltage DC output, thereby outputting a second low-voltage DC power and a third low-voltage DC power through the first output terminal and the second output terminal of the first auxiliary power supply circuit 104, respectively. In other words, a portion of the high-voltage DC power at the high-voltage DC input terminal is converted into a second low-voltage DC power and a third low-voltage DC power through the DC filter circuit 101 and the first auxiliary power supply circuit 104, thereby achieving the effect of DC input and DC output.

[0047] In some embodiments, the first low-voltage DC power supply can be used to power a computing board connected to an external device of the server power supply, the second low-voltage DC power supply can be used to power a control board and fans connected to the external device, and the third low-voltage DC power supply can be used to power the server power supply internally. The external device of the server power supply refers to a device powered by the server power supply, such as a server.

[0048] In some embodiments, the DC-DC circuit 100 is configured in the form of a three-phase interleaved resonant conversion circuit and a synchronous rectifier circuit. The resonant inductor and the main transformer can adopt a triplet structure, which can effectively reduce the output ripple current and improve the utilization rate of the magnetic circuit. The first resonant circuit 102 is a resonant circuit that can achieve a constant output voltage by controlling the switching frequency (frequency regulation). Its advantage is that it can achieve zero voltage turn-on (ZVS, Zero Voltage Switch) of the two main MOS (Metal-Oxide-Semiconductor Field-Effect Transistor, Metal-Oxide Semiconductor Field-Effect Transistor) switches on the primary side and zero current turn-off (ZCS, Zero Current Switch) of the secondary side rectifier diode, thereby effectively reducing the switching loss of the server power supply through soft switching technology and improving the efficiency and power density of the power converter.

[0049] The server power supply provided in an embodiment of the present application includes a DC-DC circuit, which includes a DC filter circuit, a first resonant circuit, and a first control circuit. The input end of the DC filter circuit is connected to the high-voltage DC input end, the first output end of the DC filter circuit is connected to the input end of the first resonant circuit, and the first output end of the first resonant circuit outputs a first low-voltage DC power. The second output end of the DC filter circuit is connected to the first controller in the first control circuit, the second output end of the first resonant circuit is connected to the second controller in the first control circuit, and the first controller and the second controller in the first control circuit are in communication connection. The third output end of the DC filter circuit is connected to the input end of the first auxiliary power supply circuit, and the first output end and the second output end of the first auxiliary power supply circuit respectively output a second low-voltage DC power and a third low-voltage DC power. The embodiment of the present application provides a new generation of server power supply that supports DC input and DC (DC-DC) output, so that the server power supply can be used in a DC-powered venue, overcoming the defect that the server power supply does not support DC power supply and enriching the scope of use of the server power supply.

[0050] FIG2 is a schematic diagram of another DC-DC circuit in a server power supply according to an embodiment of the present application, based on FIG1 . As shown in FIG2 , the DC-DC circuit 100 in the server power supply according to an embodiment of the present application further includes a first power factor correction (PFC) drive circuit 105 and a first PFC feedback circuit 106 .

[0051] Among them, possible implementations of connecting the second output terminal of the DC filter circuit 101 in FIG1 to the first controller 1031 in the first control circuit include:

[0052] A second output terminal of the DC filter circuit 101 is connected to an output terminal of the first PFC drive circuit 105 and an input terminal of the first PFC feedback circuit 106, respectively. The input terminal of the first PFC drive circuit 105 and the output terminal of the first PFC feedback circuit 106 are connected to a first controller 1031 in the first control circuit.

[0053] Specifically, the first PFC drive circuit 105 is controlled by the first controller 1031 to drive and control the DC filter circuit 101. The first PFC feedback circuit 106 feeds back a feedback signal from the DC filter circuit 101 to the first controller 1031, so that the first controller 1031 controls the first PFC drive circuit 105 based on the feedback signal.

[0054] In some embodiments, the first resonant circuit 102 in the DC-DC circuit 100 may include: a first resonant conversion (hereinafter referred to as LLC) main circuit 1021 , a first LLC driving circuit 1022 , and a first LLC feedback circuit 1023 .

[0055] Continuing with FIG2 , the input end of the first LLC main circuit 1021 serves as the input end of the first resonant circuit 102, and is configured to receive a portion of the high-voltage direct current (DC) power from which electromagnetic interference has been filtered out. The first output end of the first LLC main circuit 1021 serves as the first output end of the first resonant circuit 102, and is configured to output a first low-voltage DC power. The second output end of the first LLC main circuit 1021 is connected to the output end of the first LLC drive circuit 1022 and the input end of the first LLC feedback circuit 1023, respectively. The input end of the first LLC drive circuit 1022 and the output end of the first LLC feedback circuit 1023 serve as the second output end of the first resonant circuit 102, which is then connected to the second controller 1032 in the first control circuit.

[0056] Specifically, the first LLC driver circuit 1022 is controlled by the second controller 1032 to drive and control the first LLC main circuit 1021. The first LLC feedback circuit 1023 feeds back a feedback signal from the first LLC main circuit 1021 to the second controller 1032, so that the second controller 1032 controls the first LLC driver circuit 1022 according to the feedback signal.

[0057] In some embodiments, the first controller 1031 and the second controller 1032 can communicate with each other and are respectively connected to an external control input terminal to receive external control input. Optionally, the external control input terminal can be connected to the computing board and the control board (not shown in the drawings of the embodiment of the present application) for voltage regulation. Furthermore, the external control input terminal can also include a port for burning the software program of the server. The specific deployment of the external control input terminal is not limited in the embodiment of the present application and can be configured according to the specific situation of the server.

[0058] As can be seen from the above embodiments, the server power supply provided in the present application includes a DC-DC circuit, which includes a DC filter circuit, a first resonant circuit, and a first control circuit. The DC filter circuit's input is connected to a high-voltage DC input terminal for receiving DC power provided by the site. The DC filter circuit filters electromagnetic interference from the high-voltage DC power. A portion of the high-voltage DC power, free of electromagnetic interference, is input into the first LLC main circuit in the first resonant circuit, and a portion is used to power the first auxiliary power supply circuit. The first LLC main circuit has high-voltage DC input and low-voltage DC output functions, converting the input high-voltage DC power into a first low-voltage DC output to power the server's computing board external to the server power supply. The first auxiliary power supply circuit has a low-voltage DC output function, namely, outputting a second low-voltage DC power and a third low-voltage DC power. The second low-voltage DC power can be used to power external servers, such as a control board and fan. The third low-voltage DC power can be used to power the server power supply internally. Under the action of the DC-DC circuit, the server power supply provided in the embodiment of the present application can support the working mode of DC input and DC output, and the server power supply can meet the site requirements of providing DC power at the use site.

[0059] Based on the above embodiments, Figure 3 is a schematic diagram of an AC-DC circuit in a server power supply according to an embodiment of the present application. The AC-DC circuit 200 in the server power supply according to an embodiment of the present application includes an AC filter circuit 201, a power factor correction (PFC) circuit 202, and a second resonant circuit 203.

[0060] The input end of the AC filter circuit 201 is connected to the high-voltage AC power input end, the output end of the AC filter circuit 201 is connected to the input end of the PFC circuit 202, the first output end of the PFC circuit 202 is connected to the input end of the second resonant circuit 203, and the first output end of the second resonant circuit 203 outputs the fourth low-voltage DC power.

[0061] A provider of high-voltage AC power, such as a server power supply site, can output the high-voltage AC power to the high-voltage AC input terminal. The AC filter circuit 201 suppresses electromagnetic interference from the high-voltage AC power input to filter out the electromagnetic interference. The high-voltage AC power, free of electromagnetic interference, is input to the input terminal of the PFC circuit 202, which outputs high-voltage DC power at its first output terminal. The PFC circuit 202 functions as a high-voltage AC input and a high-voltage DC output. The high-voltage DC power output by the PFC circuit 202 is input to the input terminal of the second resonant circuit 203, which outputs a fourth low-voltage DC power at its first output terminal. The second resonant circuit 203 functions as a high-voltage DC input and a low-voltage DC output. Consequently, under the action of the AC filter circuit 201, the PFC circuit 202, and the second resonant circuit 203, the high-voltage AC power input to the high-voltage AC input terminal can be converted into a fourth low-voltage DC power output, achieving the AC input and DC output characteristics of the server power supply.

[0062] In addition, the second output end of the PFC circuit 202 is connected to the first controller 2041 in the second control circuit, the second output end of the second resonant circuit 203 is connected to the second controller 2042 in the second control circuit, and the first controller 2041 and the second controller 2042 in the second control circuit are in communication connection.

[0063] In some embodiments, the first controller 2041 and the second controller 2042 in the second control circuit may be, for example, an MCU. The second output terminal of the PFC circuit 202 is connected to the first controller 2041, so that the first controller 2041 can control the PFC circuit 202. The second output terminal of the second resonant circuit 203 is connected to the second controller 2042, so that the second controller 2042 can control the second resonant circuit 203.

[0064] Optionally, in some embodiments, the first controller 2041 and the second controller 2042 may be further connected to external control input terminals, respectively, so that an external control device can input control signals to the first controller 2041 and the second controller 2042 through the external control input terminals to control them. The external control input terminals may be, for example, the third external control input terminal 2061 and the fourth external control input terminal 2062 shown in FIG.

[0065] Continuing with FIG3 , the third output terminal of the PFC circuit 202 is connected to the input terminal of the second auxiliary power supply circuit 205. The PFC circuit 202 outputs the high-voltage DC power to the second auxiliary power supply circuit 205 through its third output terminal to power the second auxiliary power supply circuit 205. The second auxiliary power supply circuit 205 has the functions of high-voltage DC input and low-voltage DC output. Thus, the fifth low-voltage DC power and the sixth low-voltage DC power are output through the first output terminal and the second output terminal of the second auxiliary power supply circuit 205, respectively. In other words, the high-voltage AC power input to the high-voltage AC power input terminal is output to the second auxiliary power supply circuit 205 as high-voltage DC power through the PFC circuit 202. The second auxiliary power supply circuit 205 outputs the high-voltage DC power as the fifth low-voltage DC power and the sixth low-voltage DC power, thereby achieving the effect of AC input and DC output.

[0066] In some embodiments, the fourth low-voltage DC power supply can be used to power a computing board of an external device of the server power supply, the fifth low-voltage DC power supply can be used to power a control board and fans of the external device, and the sixth low-voltage DC power supply can be used to power the internal part of the server power supply. The external device of the server power supply refers to a device powered by the server power supply, such as a server.

[0067] In some embodiments, the function of the AC filter circuit 201 in the AC-DC circuit 200 is to suppress electromagnetic interference, for example, by using an EMI (Electromagnetic Interference) filter, which has a bidirectional function and can effectively prevent external electromagnetic interference from entering servers and other equipment through power lines, and can also prevent electromagnetic interference generated by the equipment itself from entering the power grid through the power lines and being transmitted to other sensitive equipment.

[0068] In some embodiments, AC-DC circuit 200 employs a totem-pole circuit architecture. Improving the power factor of PFC circuit 202 means decreasing reactive power and increasing active power, representing a decrease in the imaginary part of the load impedance and an increase in its real part. Improving the circuit's power factor makes the load appear purely resistive. A purely resistive load is characterized by voltage and current being in phase.

[0069] The server power supply provided in an embodiment of the present application includes, in addition to a DC-DC circuit, an AC-DC circuit. The AC-DC circuit includes an AC filter circuit, a PFC circuit, a second resonant circuit, and a second control circuit. The input of the AC filter circuit is connected to the high-voltage AC input, the output of the AC filter circuit is connected to the input of the PFC circuit, the first output of the PFC circuit is connected to the input of the second resonant circuit, and the first output of the second resonant circuit outputs a fourth low-voltage DC power. The second output of the PFC circuit is connected to the first controller in the second control circuit, the second output of the second resonant circuit is connected to the second controller in the second control circuit, and the first and second controllers in the second control circuit are in communication with each other. The third output of the PFC circuit is connected to the input of the second auxiliary power supply circuit, and the first and second outputs of the second auxiliary power supply output a fifth low-voltage DC power and a sixth low-voltage DC power, respectively. This provides a new generation of server power supplies that supports both DC input and output (DC-DC) and AC input and output (AC-DC). This supports the use of server power supplies in both DC and AC power supply locations, overcomes the drawback of server power supplies that do not support DC power supply, and expands the scope of application of server power supplies.

[0070] FIG4 is a schematic diagram of another AC-DC circuit in a server power supply according to an embodiment of the present application, based on FIG3 . As shown in FIG4 , the PFC circuit 202 in the AC-DC circuit 200 in the server power supply according to an embodiment of the present application includes a PFC main circuit 2021 , a second PFC drive circuit 2022 , and a second PFC feedback circuit 2023 .

[0071] The input end of the PFC main circuit 2021 is the input end of the PFC circuit 202 , the first output end of the PFC main circuit 2021 is the first output end of the PFC circuit 202 , and the third output end of the PFC main circuit 2021 is the third output end of the PFC circuit 202 .

[0072] A second output end of the PFC main circuit 2021 is connected to an output end of the second PFC driving circuit 2022 and an input end of the second PFC feedback circuit 2023, respectively. The input end of the second PFC driving circuit 2022 and the output end of the second PFC feedback circuit 2023 serve as a second output end of the PFC circuit 202, so as to be connected to the first controller 2041 in the second control circuit.

[0073] Specifically, the second PFC driver circuit 2022 is controlled by the first controller 2041 to drive and control the PFC main circuit 2021. The second PFC feedback circuit 2023 feeds back a feedback signal from the PFC main circuit 2021 to the first controller 2041, so that the first controller 2041 controls the second PFC driver circuit 2022 based on the feedback signal.

[0074] In some embodiments, the second resonant circuit 203 in the AC-DC circuit 200 may include: a second LLC main circuit 2031 , a second LLC driving circuit 2032 , and a second LLC feedback circuit 2033 .

[0075] Continuing with FIG4 , the input end of the second LLC main circuit 2031 serves as the input end of the second resonant circuit 203, and is configured to receive the high-voltage DC power outputted by the first output end of the PFC main circuit 2021. The first output end of the second LLC main circuit 2031 serves as the first output end of the second resonant circuit 203, and is configured to output the fourth low-voltage DC power. The second output end of the second LLC main circuit 2031 is connected to the output end of the second LLC drive circuit 2032 and the input end of the second LLC feedback circuit 2033, respectively. The input end of the second LLC drive circuit 2032 and the output end of the second LLC feedback circuit 2033 serve as the second output end of the second resonant circuit 203, and are therefore connected to the second controller 2042 in the second control circuit.

[0076] Specifically, the second LLC driver circuit 2032 is controlled by the second controller 2042 to drive and control the second LLC main circuit 2031. The second LLC feedback circuit 2033 feeds back a feedback signal from the second LLC main circuit 2031 to the second controller 2042, so that the second controller 2042 controls the second LLC driver circuit 2032 according to the feedback signal.

[0077] In some embodiments, the first controller 2041 and the second controller 2042 can communicate with each other and are respectively connected to an external control input terminal to receive external control input. Optionally, the external control input terminal can be connected to the computing board and the control board (not shown in the drawings of the embodiment of the present application) for voltage regulation. Furthermore, the external control input terminal can also include a port for burning the software program of the server. The specific deployment of the external control input terminal is not limited in the embodiment of the present application and can be configured according to the specific situation of the server.

[0078] The server power supply provided in the embodiment of the present application can be configured with a DC-DC circuit and an AC-DC circuit at the same time, providing a new generation of server power supply that supports both direct current input and direct current output (DC-DC) and alternating current input and direct current output (AC-DC). The server power supply can be used in sites with both DC and AC power supply, overcoming the defect that the server power supply does not support DC power supply and enriching the scope of use of the server power supply.

[0079] As described in the above embodiments, the server power supply provided in the present application is designed with a DC-DC circuit to support a DC input and DC output operating mode, while the AC-DC circuit designed for it supports an AC input and DC output operating mode. In some embodiments, the DC-DC circuit and AC-DC circuit of the server power supply can be simultaneously configured on either side of the server power supply, as shown in Figure 5.

[0080] In some embodiments, the DC-DC circuit and AC-DC circuit of the server power supply can be configured in a split configuration as shown in Figure 6. In actual operating conditions, if the server power supply's site supports DC power supply, the server power supply can be equipped with only the DC-DC circuit when shipped from the factory, enabling it to operate in a DC input and DC output mode. This can eliminate related components in the server power supply's AC-DC circuit, thereby reducing costs and increasing efficiency. It has been estimated that if the server power supply's site supports DC power supply, only the server power supply with DC input and DC output (DC-DC circuit) can be supplied when shipped from the factory, without the server power supply with AC input and DC output (AC-DC circuit), which can reduce server power supply costs by 34%.

[0081] It should be noted that Figure 6 also shows the DC-DC circuit of the server power supply on the printed circuit board (PCB) and other related components in the AC-DC circuit. For example, the components in the DC-DC circuit include but are not limited to the communication terminal 301, the auxiliary output terminal 302, the solid-state capacitor 303, the optocoupler 304, the auxiliary transformer 305, the mutual inductor 306, the silicon MOS 3071, the film capacitor 308, the electrolytic capacitor 309, the heat sink 3010, the silicon MOS 3072, the main transformer 3011, the copper bar 3012 and the solid-state capacitor 3013. The components in the AC-DC circuit include, but are not limited to, an NTC (Negative Temperature Coefficient) resistor 401, a relay 402, a heat sink 403, a silicon carbide MOS 404, an electrolytic capacitor 405, an auxiliary transformer 406, a PFC inductor 407, a Y capacitor 408, a fuse 409, an input terminal 4010, a varistor 4011, a film capacitor 4012, a common-mode inductor 4013, and a silicon MOS 4014.

[0082] The present application also provides an electronic device including a server and any one of the server power supplies provided in the above embodiments. The server and the server power supply can be connected via a cable. In some embodiments, the server power supply can be connected via a copper busbar.

[0083] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the claims.

[0084] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A server power supply unit comprising: a DC-DC circuit, wherein the DC-DC circuit comprises a DC filter circuit, a first resonant circuit, and a first control circuit; an input of the DC filter circuit is connected to an input of a high voltage DC current, a first output of the DC filter circuit is connected to an input of the first resonant circuit, and the first output of the first resonant circuit outputs a first low voltage DC current; the second output of the DC filter circuit is connected to the first controller in the first control circuit, the second output of the first resonant circuit is connected to the second controller in the first control circuit, wherein the first controller and the second controller in the first control circuit are connected with the possibility of interaction; the third output of the DC filter circuit is connected to the input of the first auxiliary power supply circuit, wherein the first output and the second output of the first auxiliary power supply circuit output a second low-voltage DC current and a third low-voltage DC current, respectively.

2. The server power supply unit according to claim 1, wherein the DC-DC circuit further comprises: a first power factor correction PFC control circuit and a first PFC feedback circuit; the second output of the DC filter circuit, connected to the first controller in the first control circuit, comprises: a second output of the DC filter circuit connected to the output of the first PFC control circuit and the input of the first PFC feedback circuit, respectively, wherein the input of the first PFC control circuit and the output of the first PFC feedback circuit are connected to the first controller in the first control circuit.

3. The server power supply unit of claim 2, wherein the first resonant circuit comprises a first LLC main circuit, a first LLC control circuit, and a first LLC feedback circuit; the input of the first LLC main circuit serves as the input of the first resonant circuit, the first output of the first LLC main circuit serves as the first output of the first resonant circuit, the second output of the first LLC main circuit is connected to the output of the first LLC control circuit and the input of the first LLC feedback circuit, respectively, wherein the input of the first LLC control circuit and the output of the first LLC feedback circuit serve as the second output of the first resonant circuit for connection to the second controller in the first control circuit.

4. A server power supply unit according to any one of claims 1 to 3, wherein the first low-voltage direct current is used to power a server board that provides computing operations, the second low-voltage direct current is used to power a server control board, and the third low-voltage direct current is used to power an internal part of the server power supply unit.

5. The server power supply unit according to claim 4, wherein the first controller and the second controller in the first control circuit are additionally connected to external control inputs, respectively, wherein the external control inputs are communicatively connected to the board providing computing operations and the control board.

6. A server power supply unit according to any one of claims 1-5, further comprising: an AC-DC circuit, wherein the AC-DC circuit comprises an AC filter circuit, a PFC power factor correction circuit, a second resonant circuit, and a second control circuit; the input of the AC filter circuit is connected to the input of the high voltage AC current, the output of the AC filter circuit is connected to the input of the PFC circuit, the first output of the PFC circuit is connected to the input of the second resonant circuit, and the first output of the second resonant circuit outputs the fourth low voltage DC current; the second output of the PFC circuit is connected to the first controller in the second control circuit, the second output of the second resonant circuit is connected to the second controller in the second control circuit, wherein the first controller and the second controller in the second control circuit are connected with the possibility of interaction; the third output of the PFC circuit is connected to the input of the second auxiliary power supply circuit, and the first output and the second output of the second auxiliary power supply circuit output the fifth low-voltage direct current and the sixth low-voltage direct current, respectively.

7. The server power supply unit according to claim 6, wherein the PFC circuit comprises a main PFC circuit, a second PFC control circuit and a second PFC feedback circuit; the input of the main PFC circuit serves as the input of the PFC circuit, the first output of the main PFC circuit serves as the first output of the PFC circuit, and the third output of the main PFC circuit serves as the third output of the PFC circuit; the second output of the main PFC circuit is connected to the output of the second PFC control circuit and the input of the second PFC feedback circuit, respectively, wherein the input of the second PFC control circuit and the output of the second PFC feedback circuit serve as the second output of the PFC circuit for connection to the first controller in the second control circuit.

8. The server power supply unit of claim 7, wherein the second resonant circuit comprises a second LLC main circuit, a second LLC control circuit, and a second LLC feedback circuit; the input of the second LLC main circuit serves as the input of the second resonant circuit, the first output of the second LLC main circuit serves as the first output of the second resonant circuit, the second output of the second LLC main circuit is connected to the output of the second LLC control circuit and the input of the second LLC feedback circuit, respectively, wherein the input of the second LLC control circuit and the output of the second LLC feedback circuit serve as the second output of the second resonant circuit for connection to the second controller in the second control circuit.

9. A server power supply unit according to any one of claims 6 to 8, wherein the fourth low-voltage direct current is used to power a server board that provides computing operations, the fifth low-voltage direct current is used to power a server control board, and the sixth low-voltage direct current is used to power an internal part of the server power supply unit.

10. A server power supply unit according to any one of claims 1 to 9, wherein the DC-DC circuit is located on any side of the server power supply unit.

11. An electronic device comprising a server and a server power supply unit according to any one of claims 1-10, wherein the server and the server power supply unit are communicatively connected.