CN114967892B - Circuit structure of server power supply - Google Patents
Circuit structure of server power supply Download PDFInfo
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- CN114967892B CN114967892B CN202210752634.7A CN202210752634A CN114967892B CN 114967892 B CN114967892 B CN 114967892B CN 202210752634 A CN202210752634 A CN 202210752634A CN 114967892 B CN114967892 B CN 114967892B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention belongs to the technical field of circuit structure design, and particularly relates to a circuit structure of a server power supply, which comprises the following components: the output end of the PSU power supply module is connected to the input end of the 12V auxiliary power supply through a first slow-starting circuit, the output end of the 12V auxiliary power supply is connected to the STBY end of the main board, and the output end of the PSU power supply module is also connected to the CORE end of the main board through a second slow-starting circuit; before a system start-up key is pressed, the PSU power supply module only controls a 12V auxiliary power supply to supply power to the STBY end of the main board through the first slow-starting circuit, and after the system start-up key is pressed, the time sequence controls the second slow-starting circuit to supply power to the CORE end of the main board.
Description
Technical Field
The invention belongs to the technical field of circuit structure design, and particularly relates to a circuit structure of a server power supply. The circuit structure realizes optimization of the size of the magnetic core of the 12Vsb auxiliary transformer, the output control circuit logic and the specification of the output electrolytic capacitor by canceling the 12Vsb circuit, and improves the reliability of PSU.
Background
In the prior art, according to intel power supply design specifications, a server power supply has two groups of voltage outputs of 12V and 12 Vsb; wherein, 12V voltage is the main output, 12Vsb voltage is the auxiliary power supply output; the 12Vsb voltage is a small output current of the auxiliary power supply, and usually below 3A, the maximum power consumption that can be output when the output voltage is 12V is only tens of W (12V 3A), and even if two power supplies are used in parallel, the maximum power consumption does not exceed 100W (12V 3A 2).
The existing server power supply is designed into two paths of 12Vsb and 12V output, the power supply and the system need to test 2 paths of voltage output after the system configuration is updated or the power supply function is increased, and the power supply capacity of the 12Vsb is an important test part when I/O equipment is regulated or expanded.
The 12V auxiliary voltage 12Vsb mainly supplies power to the control circuit in the power supply and the components such as PBG/PCIe/BMC at the main board end before the system is started, if the components are too many in the server system, OPP protection can occur when the power consumption exceeds the designed threshold value in the standby state, so that the system cannot be started; the 12Vsb line architecture generally adopts a flyback architecture, the maximum output efficiency is 80%, and the 12V main output generally adopts an LLC resonance architecture, and the highest efficiency can reach more than 94%.
The main current server power supply mode is as follows: the 12Vsb power supply is used for supplying power before the system is started, and the 12Vsb output current is basically 0 when the system is switched to the 12V main output power supply through a switching line after the system is started. The 12Vsb power supply capacity is insufficient and inefficient. This is a disadvantage of the prior art.
In view of the foregoing, it is desirable to provide a circuit structure of a server power supply to solve the above-mentioned technical drawbacks of the prior art.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems by providing a circuit structure for a server power supply.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a circuit structure of a server power supply, comprising:
the output end of the PSU power supply module is connected to the input end of the 12V auxiliary power supply through a first slow-starting circuit, the output end of the 12V auxiliary power supply is connected to the STBY end of the main board, and the output end of the PSU power supply module is also connected to the CORE end of the main board through a second slow-starting circuit; before a system start-up key is pressed, the PSU power supply module only controls a 12V auxiliary power supply to supply power to the STBY end of the main board through the first slow-starting circuit, and after the system start-up key is pressed, the time sequence controls the second slow-starting circuit to supply power to the CORE end of the main board.
Preferably, the first slow-start circuit includes:
MP5023GV-0000-Z enables chip, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10,
the first ends of the capacitor C1 and the capacitor C2 are connected to the VCC power supply end, the second ends of the capacitor C1 and the capacitor C2 are grounded,
the first end of the resistor R1 is connected with the VCC power end, the second end of the resistor R1 is connected with the first end of the resistor R2, the first end of the capacitor C3 and the 6 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the resistor R2 and the second end of the capacitor C3 are grounded;
the first end of the resistor R3 is connected with the VCC power end, the second end of the resistor R3 is connected with the first end of the capacitor C4 and the 5 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the capacitor C4 is grounded;
the first end of the resistor R4 is connected with the VCC power end, the second end of the resistor R4 is connected with the first end of the capacitor C5 and the 7 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the capacitor C5 is grounded;
the 8 th pin of the MP5023GV-0000-Z enabling chip is grounded;
the 9 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C6, the 10 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C7, the 11 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C8, and two ends of the capacitor C6 are connected with a resistor R5 in parallel;
the 1 st pin, the 2 nd pin, the 3 rd pin, the 4 th pin, the 13 th pin, the 14 th pin, the 15 th pin and the 16 th pin of the MP5023GV-0000-Z enabling chip are all connected with a VCC power supply end;
the first end of the resistor R6 is connected with the VCC power end, the second end of the resistor R6 is connected with the 24 th pin of the MP5023GV-0000-Z enabling chip, the first end of the resistor R7 and the first end of the capacitor C9, and the second end of the resistor R7 and the second end of the capacitor C9 are grounded;
the 23 rd pin of the MP5023GV-0000-Z enabling chip is grounded through a resistor R9, the 22 nd pin of the MP5023GV-0000-Z enabling chip is grounded through a resistor R8, the 21 st pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C10, and the 20 th pin of the MP5023GV-0000-Z enabling chip is grounded;
the 19 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R10, the second end of the resistor R10 is connected with the second end of the resistor R13 and the output end of the PSU power supply module,
the 18 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R11, the second end of the resistor R11 is connected with the second end of the resistor R14 and the output end of the PSU power supply module,
the 17 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R12, the second end of the resistor R12 is connected with the second end of the resistor R15 and the output end of the PSU power supply module,
the first end of the resistor R13 is connected with the first end of the resistor R14 and the first end of the resistor R15;
the 7 th pin of the MP5023GV-0000-Z enabling chip is the output end.
Preferably, the enabling end of the MP5023GV-0000-Z enabling chip is connected with the PSon signal line of the PSU power supply module, and when the PSon signal is pulled down, the MP5023GV-0000-Z enabling chip is always in an enabling state.
Preferably, the second slow-starting circuit has the same structure as the first slow-starting circuit, and the enabling of the MP5023GV-0000-Z enabling chip in the second slow-starting circuit is triggered by a start key of the system.
Preferably, the resistances of the resistor R13, the resistor R14, and the resistor R15 are the same.
Preferably, the resistances of the resistor R10, the resistor R11, and the resistor R12 are the same.
Preferably, the capacitance values of the capacitor C6, the capacitor C7, and the capacitor C8 are the same.
Preferably, the capacitance values of the capacitor C1 and the capacitor C2 are the same.
Preferably, the resistances of the resistor R6 and the resistor R7 are the same.
Preferably, the capacitance value of the capacitor C1 is the same as the capacitance value of the capacitor C2.
The invention has the beneficial effects that after two paths of output of the original power supply are changed into one path, the efficiency of the power supply is improved; because a lower component is removed, the cost is reduced to a certain extent, the reliability is improved, the space is left, other necessary power devices can be placed, and the power density of the power supply is improved; the two paths are changed into one path, and the testing workload is reduced.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
It can be seen that the present invention has outstanding substantial features and significant advances over the prior art, as well as its practical advantages.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic circuit diagram of a circuit structure of a server power supply according to the present invention.
Fig. 2 is a circuit diagram of the first slow-start circuit in fig. 1.
The power supply comprises a 1-PSU power supply module, a 2-first slow-starting circuit, a 3-second slow-starting circuit, a 4-12V auxiliary power supply, a 5-main board STBY end and a 6-main board CORE end.
Detailed Description
The present invention will be described in detail below by way of specific examples with reference to the accompanying drawings, the following examples being illustrative of the present invention and the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the circuit structure of the server power supply provided in this embodiment includes:
the PSU power supply module 1, the output end of the PSU power supply module 1 is connected to the input end of the 12V auxiliary power supply 4 through the first slow-starting circuit 2, the output end of the 12V auxiliary power supply 4 is connected with the main board STBY end 5, and the output end of the PSU power supply module 1 is also connected to the main board CORE end 6 through the second slow-starting circuit 3; before a system start-up key is pressed, the PSU power supply module only controls a 12V auxiliary power supply to supply power to the STBY end of the main board through the first slow-starting circuit, and after the system start-up key is pressed, the time sequence controls the second slow-starting circuit to supply power to the CORE end of the main board.
Preferably, the first slow start circuit 2 includes:
MP5023GV-0000-Z enables chip, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10,
the first ends of the capacitor C1 and the capacitor C2 are connected to the VCC power supply end, the second ends of the capacitor C1 and the capacitor C2 are grounded,
the first end of the resistor R1 is connected with the VCC power end, the second end of the resistor R1 is connected with the first end of the resistor R2, the first end of the capacitor C3 and the 6 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the resistor R2 and the second end of the capacitor C3 are grounded;
the first end of the resistor R3 is connected with the VCC power end, the second end of the resistor R3 is connected with the first end of the capacitor C4 and the 5 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the capacitor C4 is grounded;
the first end of the resistor R4 is connected with the VCC power end, the second end of the resistor R4 is connected with the first end of the capacitor C5 and the 7 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the capacitor C5 is grounded;
the 8 th pin of the MP5023GV-0000-Z enabling chip is grounded;
the 9 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C6, the 10 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C7, the 11 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C8, and two ends of the capacitor C6 are connected with a resistor R5 in parallel;
the 1 st pin, the 2 nd pin, the 3 rd pin, the 4 th pin, the 13 th pin, the 14 th pin, the 15 th pin and the 16 th pin of the MP5023GV-0000-Z enabling chip are all connected with a VCC power supply end;
the first end of the resistor R6 is connected with the VCC power end, the second end of the resistor R6 is connected with the 24 th pin of the MP5023GV-0000-Z enabling chip, the first end of the resistor R7 and the first end of the capacitor C9, and the second end of the resistor R7 and the second end of the capacitor C9 are grounded;
the 23 rd pin of the MP5023GV-0000-Z enabling chip is grounded through a resistor R9, the 22 nd pin of the MP5023GV-0000-Z enabling chip is grounded through a resistor R8, the 21 st pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C10, and the 20 th pin of the MP5023GV-0000-Z enabling chip is grounded;
the 19 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R10, the second end of the resistor R10 is connected with the second end of the resistor R13 and the output end of the PSU power supply module,
the 18 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R11, the second end of the resistor R11 is connected with the second end of the resistor R14 and the output end of the PSU power supply module,
the 17 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R12, the second end of the resistor R12 is connected with the second end of the resistor R15 and the output end of the PSU power supply module,
the first end of the resistor R13 is connected with the first end of the resistor R14 and the first end of the resistor R15;
the 7 th pin of the MP5023GV-0000-Z enabling chip is the output end.
Preferably, the enabling end of the MP5023GV-0000-Z enabling chip is connected with the PSon signal line of the PSU power supply module, and when the PSon signal is pulled down, the MP5023GV-0000-Z enabling chip is always in an enabling state.
Preferably, the second slow-starting circuit has the same structure as the first slow-starting circuit, and the enabling of the MP5023GV-0000-Z enabling chip in the second slow-starting circuit is triggered by a start key of the system.
Preferably, the resistances of the resistor R13, the resistor R14, and the resistor R15 are the same.
Preferably, the resistances of the resistor R10, the resistor R11, and the resistor R12 are the same.
Preferably, the capacitance values of the capacitor C6, the capacitor C7, and the capacitor C8 are the same.
Preferably, the capacitance values of the capacitor C1 and the capacitor C2 are the same.
Preferably, the resistances of the resistor R6 and the resistor R7 are the same.
Preferably, the capacitance value of the capacitor C1 is the same as the capacitance value of the capacitor C2.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. For the method disclosed in the embodiment, since it corresponds to the system disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems, and methods may be implemented in other ways. For example, the system embodiments described above are merely illustrative, e.g., the division of the elements is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, system or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit.
Similarly, each processing unit in the embodiments of the present invention may be integrated in one functional module, or each processing unit may exist physically, or two or more processing units may be integrated in one functional module.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing disclosure is merely illustrative of the preferred embodiments of the invention and the invention is not limited thereto, since modifications and variations may be made by those skilled in the art without departing from the principles of the invention.
Claims (9)
1. A circuit structure of a server power supply, comprising:
the output end of the PSU power supply module is connected to the input end of the 12V auxiliary power supply through a first slow-starting circuit, the output end of the 12V auxiliary power supply is connected to the STBY end of the main board, and the output end of the PSU power supply module is also connected to the CORE end of the main board through a second slow-starting circuit; before a system start-up key is pressed, the PSU power supply module only controls a 12V auxiliary power supply to supply power to the STBY end of the main board through the first slow-start circuit, and after the system start-up key is pressed, the second slow-start circuit is controlled in time sequence to supply power to the CORE end of the main board;
the first slow-start circuit comprises:
MP5023GV-0000-Z enables chip, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10,
the first ends of the capacitor C1 and the capacitor C2 are connected to the VCC power supply end, the second ends of the capacitor C1 and the capacitor C2 are grounded, the first end of the resistor R1 is connected with the VCC power supply end, the second end of the resistor R1 is connected with the first end of the resistor R2, the first end of the capacitor C3 and the 6 th pin of the MP5023GV-0000-Z enabling chip, and the second ends of the resistor R2 and the capacitor C3 are grounded;
the first end of the resistor R3 is connected with the VCC power end, the second end of the resistor R3 is connected with the first end of the capacitor C4 and the 5 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the capacitor C4 is grounded;
the first end of the resistor R4 is connected with the VCC power end, the second end of the resistor R4 is connected with the first end of the capacitor C5 and the 7 th pin of the MP5023GV-0000-Z enabling chip, and the second end of the capacitor C5 is grounded;
the 8 th pin of the MP5023GV-0000-Z enabling chip is grounded;
the 9 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C6, the 10 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C7, the 11 th pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C8, and two ends of the capacitor C6 are connected with a resistor R5 in parallel;
the 1 st pin, the 2 nd pin, the 3 rd pin, the 4 th pin, the 13 th pin, the 14 th pin, the 15 th pin and the 16 th pin of the MP5023GV-0000-Z enabling chip are all connected with a VCC power supply end;
the first end of the resistor R6 is connected with the VCC power end, the second end of the resistor R6 is connected with the 24 th pin of the MP5023GV-0000-Z enabling chip, the first end of the resistor R7 and the first end of the capacitor C9, and the second end of the resistor R7 and the second end of the capacitor C9 are grounded;
the 23 rd pin of the MP5023GV-0000-Z enabling chip is grounded through a resistor R9, the 22 nd pin of the MP5023GV-0000-Z enabling chip is grounded through a resistor R8, the 21 st pin of the MP5023GV-0000-Z enabling chip is grounded through a capacitor C10, and the 20 th pin of the MP5023GV-0000-Z enabling chip is grounded;
the 19 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R10, the second end of the resistor R10 is connected with the second end of the resistor R13 and the output end of the PSU power supply module,
the 18 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R11, the second end of the resistor R11 is connected with the second end of the resistor R14 and the output end of the PSU power supply module,
the 17 th pin of the MP5023GV-0000-Z enabling chip is connected with the first end of the resistor R12, the second end of the resistor R12 is connected with the second end of the resistor R15 and the output end of the PSU power supply module,
the first end of the resistor R13 is connected with the first end of the resistor R14 and the first end of the resistor R15;
the 7 th pin of the MP5023GV-0000-Z enabling chip is the output end.
2. The circuit structure of claim 1, wherein the enabling terminal of the MP5023GV-0000-Z enabling chip is connected to the PSon signal line of the PSU power module, and the MP5023GV-0000-Z enabling chip is always in an enabled state when the PSon signal is pulled down.
3. The circuit structure of claim 2, wherein the second slow-start circuit is configured with the first slow-start circuit, and the enabling of the MP5023GV-0000-Z enabling chip in the second slow-start circuit is triggered by a start key of the system.
4. A circuit structure of a server power supply according to claim 3, wherein the resistances of the resistor R13, the resistor R14, and the resistor R15 are the same.
5. The circuit structure of claim 4, wherein the resistances of the resistor R10, the resistor R11, and the resistor R12 are the same.
6. The circuit structure of claim 5, wherein the capacitor C6, the capacitor C7 and the capacitor C8 have the same capacitance value.
7. The circuit structure of claim 6, wherein the capacitor C1 and the capacitor C2 have the same capacitance value.
8. The circuit structure of claim 7, wherein the resistances of the resistor R6 and the resistor R7 are the same.
9. The circuit structure of claim 8, wherein the capacitance of the capacitor C1 and the capacitance of the capacitor C2 are the same.
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| CN106134512B (en) * | 2012-05-25 | 2014-07-09 | 北京卫星制造厂 | A kind of modular power source delayed circuit |
| CN108762456A (en) * | 2018-05-30 | 2018-11-06 | 郑州云海信息技术有限公司 | A kind of rack-mount server construction for electricity and its implementation |
| CN211427304U (en) * | 2019-12-06 | 2020-09-04 | 苏州浪潮智能科技有限公司 | Server power supply circuit, server power supply framework circuit and PSU power supply |
| CN214480269U (en) * | 2021-03-31 | 2021-10-22 | 成都万创科技股份有限公司 | Low-voltage control high-voltage slow-start circuit |
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