Server power supply and server

Abstract

The invention discloses a server power supply and a server, and relates to the technical field of servers, the server power supply comprises an input rectification circuit, a first output module and a second output module, and the first output module and the second output module work in parallel. The server power supply can output the direct current of the first voltage and the direct current of the second voltage through the two output ports respectively, communication is carried out between the first output module and the second output module in the same server power supply, and compared with communication between two batteries of different specifications, signal interference is smaller, transmission delay is lower, and communication efficiency is improved. The technical problems of mismatching of power supply time sequences, unreasonable power distribution and the like of power supplies of different specifications are solved, and the technical effect of improving the overall performance and stability of the server is achieved.

Description

Technical Field

[0001] This application relates to the technical field of servers, and particularly to server power supplies and servers. Background Art

[0002] In a server system, a Central Processing Unit (CPU) and a Graphics Processing Unit (GPU) have different voltage requirements. The CPU usually requires a high-power and precise voltage to ensure stable operation, while the GPU usually has a large current and high-power power supply requirements. The power supply voltage required by the GPU is greater than that of the CPU.

[0003] Currently, two types of power supplies with different specifications are usually set in a server system to supply power to the CPU and the GPU respectively. However, when different specifications of power supplies work together through communication with each other, situations such as mismatched power supply timings and unreasonable power distribution may occur, thereby affecting the overall performance and stability of the server. Summary of the Invention

[0004] This application provides a server power supply and a server to at least solve the problems in the related art that situations such as mismatched power supply timings and unreasonable power distribution may occur between different specifications of power supplies.

[0005] This application provides a server power supply, including:

[0006] An input rectification circuit for rectifying the input alternating current and outputting direct current;

[0007] A first output module, including a first transformer and a first filter and voltage regulation circuit. The input end of the first transformer is connected to the first output end of the input rectification circuit, and is used to output direct current with a voltage equal to a first voltage. The input end of the first filter and voltage regulation circuit is connected to the output end of the first transformer, and is used to output direct current with the first voltage after filtering and voltage regulation processing;

[0008] A second output module, including a second transformer and a second filter and voltage regulation circuit. The input end of the second transformer is connected to the second output end of the input rectification circuit, and is used to output direct current with a voltage equal to a second voltage. The first voltage is less than the second voltage. The input end of the second filter and voltage regulation circuit is connected to the output end of the second transformer, and is used to output direct current with the second voltage after filtering and voltage regulation processing.

[0009] This application also provides a server, including:

[0010] A graphics processing unit;

[0011] A central processing unit;

[0012] As described above, the output terminal of the first filtering and voltage stabilizing circuit of the server power supply is connected to the central processing unit to supply power to the central processing unit, and the output terminal of the second filtering and voltage stabilizing circuit of the server power supply is connected to the graphics processing unit to supply power to the graphics processing unit.

[0013] Through this application, since the first output module and the second output module work in parallel, the server power supply can output direct current of the first voltage and direct current of the second voltage through two output ports respectively. Communication between the first output module and the second output module in the same server power supply has less signal interference and lower transmission delay compared to communication between two batteries with different specifications. Therefore, it is possible to solve technical problems such as possible mismatches in power supply timing and unreasonable power distribution between power supplies of different specifications, and achieve the technical effect of improving the overall performance and stability of the server. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the embodiments of this application, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 FIG. 1 is a schematic structural diagram of a server power supply provided by an embodiment of this application;

[0016] Figure 2 FIG. 2 is a schematic structural diagram of a server power supply provided by an embodiment of this application;

[0017] Figure 3 FIG. 3 is a schematic structural diagram of a magnetic field generation circuit provided by an embodiment of this application;

[0018] Figure 4 FIG. 4 is a schematic structural diagram of a server power supply provided by an embodiment of this application;

[0019] Figure 5 FIG. 5 is a schematic structural diagram of a server power supply in the related art;

[0020] Figure 6 FIG. 6 is a schematic diagram of feedback regulation by a feedback regulation circuit provided by an embodiment of this application;

[0021] Figure 7 FIG. 7 is a schematic diagram of feedback regulation by a feedback regulation circuit provided by an embodiment of this application;

[0022] Figure 8 FIG. 8 is a schematic diagram of feedback regulation by a feedback regulation circuit provided by an embodiment of this application;

[0023] Figure 9 Schematic diagram of the structure of a server provided by an embodiment of the present application.

[0024] Reference numerals:

[0025] Server power supply 100, input rectifier circuit 110, first output module 120,

[0026] First transformer 121, first filter and voltage stabilization circuit 122, second output module 130,

[0027] Second transformer 131, second filter and voltage stabilization circuit 132, inductance structure 140,

[0028] Electrical isolation structure 150, adjustable resistor 310, control chip 320, first circuit board 410,

[0029] Second circuit board 420, third circuit board 430, server 900, graphics processor 910,

[0030] Central processing unit 920. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0032] It should be noted that in the description of the present application, the terms "include", "comprise" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article or device. The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0033] To enable those skilled in the art of the present technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0034] An embodiment of the present application provides a server power supply 100.

[0035] As Figure 1 shown, the server power supply 100 includes an input rectifier circuit 110, a first output module 120, and a second output module 130.

[0036] The first output module 120 includes a first transformer 121 and a first filter voltage regulator circuit 122. The input end of the first transformer 121 is connected to the first output end of the input rectifier circuit 110, and the input end of the first filter voltage regulator circuit 122 is connected to the output end of the first transformer 121. The second output module 130 includes a second transformer 131 and a second filter voltage regulator circuit 132. The input end of the second transformer 131 is connected to the second output end of the input rectifier circuit 110, and the input end of the second filter voltage regulator circuit 132 is connected to the output end of the second transformer 131.

[0037] In this embodiment, the input rectifier circuit 110 is used to rectify the input alternating current and output direct current.

[0038] Among them, the input rectifier circuit 110 is a circuit that can convert alternating current into direct current, and can reduce voltage fluctuations through operations such as filtering, providing a stable direct current input for subsequent power conversion.

[0039] In actual implementation, the 220V mains power can be input to the input rectifier circuit 110. The input rectifier circuit 110 rectifies the 220V alternating current to obtain direct current and outputs it through the first output end and the second output end.

[0040] It should be noted that the input rectifier circuit 110 may include a filter circuit and a rectifier circuit. Among them, the filter circuit can filter out high-frequency noise in the alternating current, and the rectifier circuit can rectify the alternating current with high-frequency noise filtered out to obtain direct current. The rectifier circuit can be a power factor correction (PFC) rectifier circuit, and the PFC rectifier circuit can reduce the electromagnetic interference of the circuit.

[0041] In this embodiment, the first output module 120 includes a first transformer 121 and a first filter voltage regulator circuit 122. The input end of the first transformer 121 is connected to the first output end of the input rectifier circuit 110, and is used to output direct current with a voltage equal to the first voltage. The input end of the first filter voltage regulator circuit 122 is connected to the output end of the first transformer 121, and is used to output direct current of the first voltage that has been filtered and regulated.

[0042] Among them, the first output module 120 is a module that can step down, filter, and regulate the input direct current, and output direct current of a stable and smooth first voltage.

[0043] The first transformer 121 is a device that can convert high-voltage electricity into low-voltage electricity. The first output module 120 steps down the direct current through the first transformer 121. The high-voltage direct current output from the first output terminal of the input rectifier circuit 110 is input to the first transformer 121. The first transformer 121 steps down the high-voltage direct current and outputs direct current with a first voltage, and the first voltage can be equal to 12V.

[0044] The first filter voltage regulator circuit 122 is a circuit that can perform filtering and voltage regulation on direct current. The first output module 120 performs filtering and voltage regulation on the direct current through the first filter voltage regulator circuit 122. The direct current with the first voltage is input to the first filter voltage regulator circuit 122 for filtering and voltage regulation, and stable and smooth direct current with the first voltage is output.

[0045] Filtering is a process that can filter out noise in an electrical signal and retain the effective signal. Voltage regulation is a process that keeps the output voltage constant and is not affected by changes in the input voltage or load.

[0046] In this embodiment, the second output module 130 includes a second transformer 131 and a second filter voltage regulator circuit 132. The input end of the second transformer 131 is connected to the second output end of the input rectifier circuit 110 and is used to output direct current with a voltage equal to a second voltage. The first voltage is less than the second voltage. The input end of the second filter voltage regulator circuit 132 is connected to the output end of the second transformer 131 and is used to output direct current with the second voltage that has been filtered and voltage-regulated.

[0047] Among them, the second output module 130 is a module that can step down the input direct current and perform filtering and voltage regulation, and output stable and smooth direct current with the second voltage.

[0048] The second transformer 131 is a device that can convert high-voltage electricity into low-voltage electricity. The second output module 130 steps down the direct current through the second transformer 131. The high-voltage direct current output from the second output end of the input rectifier circuit 110 is input to the second transformer 131. The second transformer 131 steps down the high-voltage direct current and outputs direct current with the second voltage, and the second voltage can be equal to 48V.

[0049] The second filter voltage regulator circuit 132 is a circuit that can perform filtering and voltage regulation on direct current. The second output module 130 performs filtering and voltage regulation on the direct current through the second filter voltage regulator circuit 132. The direct current with the second voltage is input to the second filter voltage regulator circuit 132 for filtering and voltage regulation, and stable and smooth direct current with the second voltage is output.

[0050] In this embodiment, high-voltage alternating current is input to the input rectifier circuit 110, and the input rectifier circuit 110 rectifies the high-voltage alternating current to obtain high-voltage direct current.

[0051] The high-voltage direct current output from the first output terminal of the input rectifier circuit 110 is input to the first transformer 121. The first transformer 121 steps down the high-voltage direct current and outputs direct current of a first voltage. The direct current of the first voltage is input to the first filter voltage regulator circuit 122, and the first filter voltage regulator circuit 122 performs filtering and voltage regulation on the direct current of the first voltage and outputs stable and smooth direct current of the first voltage.

[0052] The high-voltage direct current output from the second output terminal of the input rectifier circuit 110 is input to the second transformer 131. The second transformer 131 steps down the high-voltage direct current and outputs direct current of a second voltage. The direct current of the second voltage is input to the second filter voltage regulator circuit 132, and the second filter voltage regulator circuit 132 performs filtering and voltage regulation on the direct current of the second voltage and outputs stable and smooth direct current of the second voltage.

[0053] In the related art, two types of power supplies are usually set in the server system to supply power to the CPU and GPU respectively. As Figure 5 shown, it is a 12V power supply or a 48V power supply. However, during the installation and maintenance of the server, operators are prone to accidentally insert the power supply due to negligence, resulting in component damage or even server failure. When different specifications of power supplies work together through mutual communication, there may be situations such as mismatched power supply timing and unreasonable power distribution, thus affecting the overall performance and stability of the server, increasing the operation and maintenance cost. In addition, dual-power supply increases cost, space occupancy, complex wiring, and increases the difficulty of power management.

[0054] In the embodiments of the present application, the server power supply 100 is provided with an input rectifier circuit 110, a first output module 120, and a second output module 130. The input rectifier circuit 110 converts alternating current into direct current. The direct current is input into the first output module 120 and the second output module 130 in two paths. In the first output module 120, the first transformer 121 converts the high-voltage direct current into direct current of a first voltage, and the first filter voltage regulator circuit 122 performs filtering and voltage regulation processing on the direct current of the first voltage. In the second output module 130, the second transformer 131 converts the high-voltage direct current into direct current of a second voltage, and the second filter voltage regulator circuit 132 performs filtering and voltage regulation processing on the direct current of the second voltage. The first output module 120 and the second output module 130 work in parallel. The server power supply 100 can output direct current of the first voltage and direct current of the second voltage through two output ports respectively. The two voltage output ports can be marked for distinction, reducing the probability of misplugging the power supply by the operator. The first output module 120 and the second output module 130 in the same server power supply 100 communicate with each other. Compared with the communication between two batteries of different specifications, the signal interference is smaller and the transmission delay is lower, which can make the power supply timing more matched, improve the rationality of power distribution, thereby improving the overall performance and stability of the server 900, reducing the operation and maintenance cost. In addition, the first output module 120 and the second output module 130 are connected to the same input rectifier circuit 110, which can reduce the circuit layout, save the power supply cost and space occupation, and reduce the wiring complexity and the power management difficulty.

[0055] According to the server power supply 100 provided by the embodiments of the present application, by setting the input rectifier circuit 110, the first output module 120, and the second output module 130, the input rectifier circuit 110 converts alternating current into direct current. The direct current is input into the first output module 120 and the second output module 130 in two paths. The first output module 120 and the second output module 130 work in parallel. The server power supply 100 can output direct current of the first voltage and direct current of the second voltage through two output ports respectively. The first output module 120 and the second output module 130 in the same server power supply 100 communicate with each other. Compared with the communication between two batteries of different specifications, the signal interference is smaller and the transmission delay is lower, which can make the power supply timing more matched, improve the rationality of power distribution, thereby improving the overall performance and stability of the server 900.

[0056] In some embodiments, the server power supply 100 further includes a magnetic field generation circuit.

[0057] The magnetic field generation circuit part is located between the first transformer 121 and the second transformer 131, and is used to generate a magnetic field between the first transformer 121 and the second transformer 131. The direction of the magnetic field generated by the magnetic field generation circuit is opposite to the direction of the leakage magnetic field generated between the first transformer 121 and the second transformer 131.

[0058] Among them, the magnetic field generation circuit is a circuit that can generate a magnetic field. The part of the magnetic field generation circuit that can generate a magnetic field is located between the first transformer 121 and the second transformer 131 to generate a magnetic field between the first transformer 121 and the second transformer 131.

[0059] In this embodiment, by reasonably designing the circuit parameters and the energization direction of the magnetic field generation circuit, etc., the magnetic field generated by the magnetic field generation circuit can cancel out the leakage magnetic field that interferes with each other between the first transformer 121 and the second transformer 131.

[0060] For example, if the leakage magnetic fields of the first transformer 121 and the second transformer 131 are both to the left at the same time, the magnetic field generation circuit can introduce a magnetic field in the opposite direction to the right between the first transformer 121 and the second transformer 131 to cancel out the magnetic field of the leakage magnetic flux.

[0061] In this embodiment, the magnetic field generation circuit generates a magnetic field between the first transformer 121 and the second transformer 131, and the direction of the magnetic field is opposite to the direction of the leakage magnetic field generated between the first transformer 121 and the second transformer 131, which can cancel out the leakage magnetic flux and enhance the output efficiency and the stability of the output signal of the server power supply 100.

[0062] In some embodiments, the magnetic field generation circuit includes:

[0063] An inductance structure 140. The inductance structure 140 is located between the first transformer 121 and the second transformer 131. The inductance structure 140 is connected to the output end of the first transformer 121 or the output end of the second transformer 131 and is used to receive the power supply from the first transformer 121 or the second transformer 131.

[0064] Among them, the inductance structure 140 can be composed of a coil wound by a wire. When an electric current passes through the coil, a magnetic field can be generated around it.

[0065] In this embodiment, as Figure 2 shown, the inductance structure 140 is located between the first transformer 121 and the second transformer 131, so that the magnetic field generated around the inductance structure 140 is between the first transformer 121 and the second transformer 131.

[0066] The inductance structure 140 can be connected to the output terminal of the first transformer 121 or the output terminal of the second transformer 131. The first transformer 121 or the second transformer 131 and the inductance structure 140 form a conducting loop to supply power to the inductance structure 140, enabling current to pass through the inductance structure 140 to generate a magnetic field.

[0067] In this embodiment, the magnetic field generated by the inductance structure 140 can cancel out the leakage magnetic field, enhance the output efficiency of the server power supply 100 and the stability of the output signal. At the same time, it can also guide the magnetic circuit, making the leakage magnetic flux that might originally interact and cause interference more likely to close through the inductance structure 140 and the magnetic circuit around it, reducing the magnetic field diffusion to another transformer area, thereby reducing the mutual influence between the first transformer 121 and the second transformer 131.

[0068] In some embodiments, the magnetic field generating circuit further includes:

[0069] A variable resistor 310, which is connected in series with the inductance structure 140. The variable resistor 310 is used to adjust its own resistance value, thereby adjusting the intensity of the magnetic field generated by the inductance structure 140.

[0070] Among them, the variable resistor 310 is a resistor whose resistance value can be adjusted.

[0071] As Figure 3 shown, the inductance structure 140 is connected to the output terminal of the first transformer 121, the variable resistor 310 is connected in series with the inductance structure 140, and the first transformer 121 supplies power to the inductance structure 140, enabling current to pass through the inductance structure 140 to generate a magnetic field. By adjusting the resistance value of the variable resistor 310, the magnitude of the current passing through the inductance structure 140 can be changed, thereby adjusting the magnitude of the magnetic field generated by the inductance structure 140.

[0072] In this embodiment, according to the magnitude of the leakage magnetic field generated between the first transformer 121 and the second transformer 131, the resistance value of the variable resistor 310 can be adjusted, thereby adjusting the magnitude of the magnetic field generated by the inductance structure 140, such that the magnetic field generated by the inductance structure 140 can cancel out the leakage magnetic field generated between the first transformer 121 and the second transformer 131.

[0073] In some embodiments, the inductance parameters of the inductance structure 140 are determined based on the output power of the first transformer 121, the output power of the second transformer 131, the distance between the first transformer 121 and the second transformer 131, and the intensity of the leakage magnetic field generated between the first transformer 121 and the second transformer 131.

[0074] Among them, the inductance parameters are indicators that can describe the performance of the inductance structure 140, and can include the inductance value, number of turns, wire diameter, etc. of the inductance structure 140.

[0075] The output power of the first transformer 121 is the power of the direct current at the output end of the first transformer 121, and the output power of the second transformer 131 is the power of the direct current at the output end of the second transformer 131. The distance between the first transformer 121 and the second transformer 131 can be the minimum distance between the first transformer 121 and the second transformer 131.

[0076] In this embodiment, the mapping relationship between the inductance parameters of the inductance structure 140 and the output power of the first transformer 121, the output power of the second transformer 131, the distance between the first transformer 121 and the second transformer 131, and the intensity of the leakage magnetic field generated between the first transformer 121 and the second transformer 131 can be fitted. According to the output power of the first transformer 121, the output power of the second transformer 131, the distance between the first transformer 121 and the second transformer 131, and the intensity of the leakage magnetic field generated between the first transformer 121 and the second transformer 131, the inductance parameters of the inductance structure 140 can be obtained through the fitted mapping relationship.

[0077] In this embodiment, there are high-frequency interference components in the server power supply 100. Considering the characteristics of the inductance structure 140 at high frequencies, the inductance parameters are determined according to the output power of the first transformer 121, the output power of the second transformer 131, the distance between the first transformer 121 and the second transformer 131, and the intensity of the leakage magnetic field generated between the first transformer 121 and the second transformer 131, so that the operating frequency of the inductance structure 140 matches the frequency of the leakage magnetic field generated between the first transformer 121 and the second transformer 131, so as to effectively cancel and guide the leakage magnetic field.

[0078] In this embodiment, the inductance parameters can be determined under the output power and the intensity of the leakage magnetic field generated when the first transformer 121 and the second transformer 131 are in the operating state corresponding to a switching frequency of 100K.

[0079] In actual implementation, as Figure 3 shown, the adjustment of the adjustable resistor 310 can be controlled by a control chip 320. A voltage tap is selected on the first transformer 121 to supply power to the control chip 320 and the inductance structure 140. The control chip 320 adjusts the resistance value of the adjustable resistor 310 to adjust the current of the inductance structure 140, thereby adjusting the magnetic field generated by the inductance structure 140.

[0080] The design power of the server power supply 100 can be used to design the transformers and transformer windings according to the power of the direct current output by the first transformer 121 and the second transformer 131 in two paths, and calculate the frequency and loop design curve of the server power supply 100. Through the loop design curve, the leakage magnetic flux of the first transformer 121 and the second transformer 131 can be obtained. Based on the leakage magnetic flux of the two paths, the magnetic field parameters and current design curve of the inductor structure 140 can be designed. When the operating states of the two paths of the first transformer 121 and the second transformer 131 change, resulting in changes in the leakage magnetic flux and direction, the control chip 320 can adjust the current direction, thereby adjusting the magnetic field direction to cancel interference.

[0081] The control chip 320 can accurately issue instructions. The control chip 320 is connected to the adjustable resistor 310 and can change the resistance value of the adjustable resistor 310. When the resistance value of the adjustable resistor 310 changes, the current flowing through the inductor structure 140 changes, thereby affecting the intensity and distribution of the generated magnetic field. There is originally a leakage magnetic phenomenon between the first transformer 121 and the second transformer 131. Due to the improvement of the magnetic field generated by the inductor structure 140, as the control chip 320 continuously regulates the current in the inductor structure 140, the current in the inductor structure 140 reaches an ideal state, significantly reducing the leakage magnetic flux between the first transformer 121 and the second transformer 131, and improving the working efficiency and stability of the first transformer 121 and the second transformer 131.

[0082] The assembly position of the inductor structure 140 is precisely calculated and adjusted so that the magnetic field generated by the inductor structure 140 can interact with the transformer interference magnetic field.

[0083] In some embodiments, the server power supply 100 further includes an electrical isolation structure 150.

[0084] As Figure 2 shown, the electrical isolation structure 150 is disposed between the first output module 120 and the second output module 130 for separating the first output module 120 and the second output module 130.

[0085] Among them, the electrical isolation structure 150 is a structure that can block the conductive path and electrical connection.

[0086] In this embodiment, the space between the first transformer 121 and the second transformer 131 is limited. Setting the electrical isolation structure 150 between the first output module 120 and the second output module 130 to separate the first output module 120 and the second output module 130 can improve the electrical safety performance of the server power supply 100.

[0087] In some embodiments, the electrical isolation structure 150 is made of ceramic material.

[0088] Among them, the ceramic material can be aluminum nitride ceramic.

[0089] The isolation design of the aluminum nitride ceramic can be used for electrical isolation between the first output module 120 and the second output module 130. Additionally, it can play the roles of guiding air and heat insulation. The aluminum nitride ceramic has outstanding thermal conductivity. When the transformer generates heat during operation, it can quickly dissipate the heat, reduce local overheating, and help improve the heat dissipation efficiency and overall performance of the transformer. At the same time, the aluminum nitride ceramic has strong electrical insulation and mechanical properties, which can provide stable physical support while achieving good electrical isolation.

[0090] In this embodiment, the ceramic material has high insulation performance and good mechanical strength, which can improve the electrical safety performance of the server power supply 100 while providing physical support for the first transformer 121 and the second transformer 131, and improving the heat dissipation efficiency of the first transformer 121 and the second transformer 131.

[0091] In some embodiments, the server power supply 100 further includes a feedback regulation circuit.

[0092] The feedback regulation circuit is connected to the output terminals of the first filter voltage regulation circuit 122, the output terminals of the second filter voltage regulation circuit 132, and the input rectification circuit 110. It is used to determine and transmit a voltage regulation signal to the input rectification circuit 110 based on the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 or the electrical parameters of the direct current output by the second filter voltage regulation circuit 132. The input rectification circuit 110 is used to adjust the voltage of the direct current it outputs based on the voltage regulation signal.

[0093] Among them, the feedback regulation circuit is a circuit that can generate a voltage regulation signal according to the electrical parameters of the direct current output by the server power supply 100 and transmit the voltage regulation signal to the input rectification circuit 110 to adjust the output voltage of the input rectification circuit 110.

[0094] The electrical parameters are physical quantities that describe the electrical energy characteristics of direct current and can include current, voltage, etc.

[0095] The voltage regulation signal is a signal for controlling the input rectification circuit 110 to adjust the output voltage. The voltage regulation signal can include a voltage increase signal and a voltage decrease signal. The voltage increase signal can control the input rectification circuit 110 to increase the output voltage, and the voltage decrease signal can control the input rectification circuit 110 to decrease the output voltage.

[0096] In this embodiment, the feedback regulation circuit can determine a voltage increase signal when the electrical parameters of the direct current output by the first filtering and voltage stabilizing circuit 122 or the electrical parameters of the direct current output by the second filtering and voltage stabilizing circuit 132 increase, and determine a voltage decrease signal when the electrical parameters of the direct current output by the first filtering and voltage stabilizing circuit 122 or the electrical parameters of the direct current output by the second filtering and voltage stabilizing circuit 132 decrease.

[0097] In this embodiment, the input rectifier circuit 110 of the front stage of the server power supply 100 is modulated by the inductor-inductor-capacitor resonance (LLC) of the rear stage, that is, the first output module 120 and the second output module 130 work together so that the input rectifier circuit 110 provides a stable DC voltage for the first output module 120 and the second output module 130. After the AC power is rectified by the input rectifier circuit 110, it is usually a pulsating DC voltage with a low voltage amplitude and poor stability. The input rectifier circuit 110 can increase the voltage of the DC power to a relatively stable voltage, such as 400V.

[0098] The feedback of the DC power output by the first filtering and stabilizing circuit 122 and the DC power output by the second filtering and stabilizing circuit 132 affects the output voltage adjustment of the input rectifier circuit 110. When the load connected to the output end of the first filtering and stabilizing circuit 122 changes, the first filtering and stabilizing circuit 122 may need to fine-tune the output voltage of the input rectifier circuit 110 to ensure its own output stability. Similarly, when the load connected to the output end of the second filtering and stabilizing circuit 132 changes, the second filtering and stabilizing circuit 132 may need to fine-tune the output voltage of the input rectifier circuit 110 to ensure its own output stability.

[0099] The first filtering and voltage-stabilizing circuit 122 and the second filtering and voltage-stabilizing circuit 132 transmit feedback information such as the voltage or current of the output direct current to the feedback regulation circuit through the feedback mechanism of the feedback regulation circuit. The feedback regulation circuit generates a voltage regulation signal according to the feedback information and feeds it back to the input rectifier circuit 110. The input rectifier circuit 110 regulates its own output voltage according to the voltage regulation signal to meet the requirements of the first filtering and voltage-stabilizing circuit 122 and the second filtering and voltage-stabilizing circuit 132 under different loads.

[0100] In this embodiment, the feedback regulation circuit determines and transmits a voltage regulation signal to the input rectifier circuit 110 based on the electrical parameters of the direct current output by the first filtering and stabilizing circuit 122 or the electrical parameters of the direct current output by the second filtering and stabilizing circuit 132, and adjusts the voltage of the direct current output by the input rectifier circuit 110, so as to adapt to changes in the load connected to the server power supply 100 and maintain the stability of the output voltage.

[0101] In some embodiments, the feedback regulation circuit is configured to determine a voltage regulation signal based on the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 and transmit the voltage regulation signal to the input rectification circuit 110 when the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 change and the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 remain unchanged;

[0102] In the case where the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 remain unchanged and the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 change, determine a voltage regulation signal based on the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 and transmit the voltage regulation signal to the input rectification circuit 110;

[0103] In the case where the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 and the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 both change, determine a voltage regulation signal based on the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 and transmit the voltage regulation signal to the input rectification circuit 110.

[0104] In this embodiment, when the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 change and the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 remain unchanged, the output voltage of the input rectification circuit 110 is adjusted according to the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 so that the direct current output by the first filter voltage regulation circuit 122 meets the load requirements, and the direct current output by the second filter voltage regulation circuit 132 is passively modulated.

[0105] When the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 change and the electrical parameters of the direct current output by the first filter voltage regulation circuit 122 remain unchanged, the output voltage of the input rectification circuit 110 is adjusted according to the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 so that the direct current output by the second filter voltage regulation circuit 132 meets the load requirements, and the direct current output by the first filter voltage regulation circuit 122 is passively modulated.

[0106] When the electrical parameters of the direct currents output by the first filter voltage regulation circuit 122 and the second filter voltage regulation circuit 132 change simultaneously, taking the electrical parameters of the direct current output by the second filter voltage regulation circuit 132 as a reference, so that the direct current output by the second filter voltage regulation circuit 132 meets the load requirements, and the direct current output by the first filter voltage regulation circuit 122 is passively modulated.

[0107] For example, as Figure 6 shown, when the current of the 12V direct current output by the first filter voltage regulation circuit 122 increases, the feedback regulation circuit generates a voltage increase signal, the input rectification circuit 110 receives the voltage increase signal and controls its own output voltage to increase, and the current of the 48V direct current output by the second filter voltage regulation circuit 132 is passively modulated.

[0108] As Figure 7 shown, when the current of the 48V direct current output by the second filter voltage regulator circuit 132 increases, the feedback regulation circuit generates a voltage increase signal, and the input rectifier circuit 110 receives the voltage increase signal and controls its own output voltage to increase, and the current of the 12V direct current output by the first filter voltage regulator circuit 122 is passively modulated.

[0109] As Figure 8 shown, when the currents of the 12V direct current output by the first filter voltage regulator circuit 122 and the 48V direct current output by the second filter voltage regulator circuit 132 increase simultaneously, the feedback regulation circuit generates a voltage increase signal, and the corresponding amplitude of the voltage increase is determined based on the 48V direct current output by the second filter voltage regulator circuit 132, and the input rectifier circuit 110 receives the voltage increase signal and controls its own output voltage to increase.

[0110] In this embodiment, when the output voltage of the input rectifier circuit 110 is feedback-regulated, taking the 48V direct current output by the second filter voltage regulator circuit 132 as a reference can make the server power supply 100 stable in most working conditions.

[0111] In some embodiments, the input rectifier circuit 110 is printed on the first circuit board 410, the first filter voltage regulator circuit 122 is printed on the second circuit board 420, the second filter voltage regulator circuit 132 is printed on the third circuit board 430, and there is no overlap between the first circuit board 410, the second circuit board 420, and the third circuit board 430.

[0112] In this embodiment, the first filter voltage regulator circuit 122 and the second filter voltage regulator circuit 132 output different voltages, and both paths may have relatively large current outputs simultaneously. The input rectifier circuit 110, the first filter voltage regulator circuit 122, and the second filter voltage regulator circuit 132 are printed on different circuit boards.

[0113] As Figure 4 shown, the first circuit board 410 is isolated for the high-voltage part. After the 220V AC voltage is input, it enters the first transformer 121 and the second transformer 131 through the filter circuit and the rectifier circuit. The circuit layout of the first circuit board 410 is mainly the high-voltage part and the AC part, which can effectively shield against the interference from the backend.

[0114] Through two independent transformers, the 12V first transformer 121 and the 48V second transformer 131, and through the second circuit board 420 and the third circuit board 430, the output of the front-stage power supply is transformed to output stable 12V and 48V direct currents.

[0115] In this embodiment, the input rectifier circuit 110, the first filter and voltage stabilizing circuit 122, and the second filter and voltage stabilizing circuit 132 are respectively printed on different circuit boards, and there is no overlap between the circuit boards, which can effectively reduce the common-mode interference during the operation of the server power supply 100 and the differential-mode interference generated when starting from different paths.

[0116] The server power supply 100 provided by the embodiment of the present application includes two outputs of a first voltage and a second voltage. Among them, the first voltage can be 12V, and the second voltage can be 48V. The output end of the server power supply 100 has multiple taps, two transformers are in parallel, and the two-way outputs are isolated from each other.

[0117] The input rectifier circuit 110, the first filter and voltage stabilizing circuit 122, and the second filter and voltage stabilizing circuit 132 are respectively printed on different circuit boards, which can effectively reduce the common-mode interference during the operation of the power supply module and the differential-mode interference when starting from different paths.

[0118] An inductance structure 140 is arranged between the first transformer 121 and the second transformer 131 to adjust the magnetic field between the first transformer 121 and the second transformer 131. The magnitude of the current in the inductance structure 140 can be adjusted according to the power of the first transformer 121, the power of the second transformer 131, and the magnetic field usage condition, actively canceling the leakage magnetic field and enhancing the output efficiency and the stability of the output signal of the server power supply 100.

[0119] An electrical isolation structure 150 made of aluminum nitride ceramic material is arranged between the first transformer 121 and the second transformer 131, which can increase the heat dissipation efficiency and the overall performance of the transformer while meeting the physical support.

[0120] A feedback regulation circuit is arranged in the server power supply 100 to realize the independent output of two different voltages, share the input rectifier circuit 110, and perform stable feedback regulation.

[0121] In this embodiment, a control system for the server power supply 100 can be designed to control the server power supply 100 according to the working conditions of the server 900.

[0122] The embodiment of the present application provides a server 900.

[0123] As Figure 9 shown, the server 900 includes a graphics processing unit (GPU) 910, a central processing unit (CPU) 920, and the above-mentioned server power supply 100.

[0124] The output terminal of the first filtering and voltage stabilizing circuit 122 of the server power supply 100 is connected to the central processing unit 920 for supplying power to the central processing unit 920. The output terminal of the second filtering and voltage stabilizing circuit 132 of the server power supply 100 is connected to the graphics processing unit 910 for supplying power to the graphics processing unit 910.

[0125] According to the server 900 provided by the embodiments of the present application, by setting the input rectifying circuit 110, the first output module 120, and the second output module 130, the input rectifying circuit 110 converts alternating current into direct current, and the direct current is input into the first output module 120 and the second output module 130 in two paths. The first output module 120 and the second output module 130 work in parallel. The server power supply 100 can output direct current of the first voltage and direct current of the second voltage through two output ports respectively. Communication is carried out between the first output module 120 and the second output module 130 in the same server power supply 100. Compared with communication between two batteries of different specifications, the signal interference is smaller and the transmission delay is lower, which can make the power supply timing more matched, improve the rationality of power distribution, and thus improve the overall performance and stability of the server 900.

[0126] The above has introduced in detail a server power supply 100 and a server 900 provided by the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A server power supply, characterized in that, Comprising: An input rectifier circuit for rectifying the input alternating current and outputting direct current; A first output module including a first transformer and a first filter voltage regulator circuit. The input end of the first transformer is connected to the first output end of the input rectifier circuit and is used for outputting direct current with a voltage equal to a first voltage. The input end of the first filter voltage regulator circuit is connected to the output end of the first transformer and is used for outputting direct current of the first voltage that has undergone filtering and voltage regulation processing; A second output module including a second transformer and a second filter voltage regulator circuit. The input end of the second transformer is connected to the second output end of the input rectifier circuit and is used for outputting direct current with a voltage equal to a second voltage, where the first voltage is less than the second voltage. The input end of the second filter voltage regulator circuit is connected to the output end of the second transformer and is used for outputting direct current of the second voltage that has undergone filtering and voltage regulation processing.

2. The server power supply according to claim 1, wherein Further comprising: A magnetic field generation circuit, where a part of the magnetic field generation circuit is located between the first transformer and the second transformer and is used for generating a magnetic field between the first transformer and the second transformer. The direction of the magnetic field generated by the magnetic field generation circuit is opposite to the direction of the leakage magnetic field generated between the first transformer and the second transformer.

3. The server power supply according to claim 2, wherein The magnetic field generation circuit includes: An inductance structure located between the first transformer and the second transformer. The inductance structure is connected to the output end of the first transformer or the output end of the second transformer and is used for receiving power supply from the first transformer or the second transformer.

4. The server power supply according to claim 3, characterized in that, The magnetic field generation circuit further includes: A variable resistor connected in series with the inductance structure. The variable resistor is used for adjusting its own resistance value, thereby adjusting the intensity of the magnetic field generated by the inductance structure.

5. The server power supply according to claim 3, wherein The inductance parameter of the inductance structure is determined based on the output power of the first transformer, the output power of the second transformer, the distance between the first transformer and the second transformer, and the intensity of the leakage magnetic field generated between the first transformer and the second transformer.

6. The server power supply according to claim 1, wherein Further comprising: An electrical isolation structure provided between the first output module and the second output module and used for separating the first output module and the second output module.

7. The server power supply according to claim 6, characterized in that, The electrical isolation structure is made of ceramic material.

8. The server power supply according to any one of claims 1-7, characterized in that, Further comprising: A feedback regulation circuit connected to the output end of the first filter voltage regulator circuit, the output end of the second filter voltage regulator circuit, and the input rectifier circuit. The feedback regulation circuit is used for determining and transmitting a voltage regulation signal to the input rectifier circuit based on the electrical parameters of the direct current output by the first filter voltage regulator circuit or the electrical parameters of the direct current output by the second filter voltage regulator circuit. The input rectifier circuit is used for adjusting the voltage of the direct current output by itself based on the voltage regulation signal.

9. The server power supply according to claim 8, characterized in that, The feedback regulation circuit is used to determine and transmit the voltage regulation signal to the input rectification circuit based on the electrical parameters of the direct current output by the first filter voltage regulation circuit when the electrical parameters of the direct current output by the first filter voltage regulation circuit change and the electrical parameters of the direct current output by the second filter voltage regulation circuit remain unchanged; When the electrical parameters of the direct current output by the first filter voltage regulation circuit remain unchanged and the electrical parameters of the direct current output by the second filter voltage regulation circuit change, determine and transmit the voltage regulation signal to the input rectification circuit based on the electrical parameters of the direct current output by the second filter voltage regulation circuit; When the electrical parameters of the direct current output by the first filter voltage regulation circuit and the electrical parameters of the direct current output by the second filter voltage regulation circuit both change, determine and transmit the voltage regulation signal to the input rectification circuit based on the electrical parameters of the direct current output by the second filter voltage regulation circuit.

10. A server, characterized in that, Comprising: Graphics processor; Central processing unit; The server power supply according to any one of claims 1-9, wherein the output terminal of the first filter voltage regulation circuit of the server power supply is connected to the central processing unit for supplying power to the central processing unit, and the output terminal of the second filter voltage regulation circuit of the server power supply is connected to the graphics processor for supplying power to the graphics processor.

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