Power supply circuit structure for Loongson 3A5000 processor
By using domestic EC chips and power chips to design the power circuit structure of the Loongson 3A5000 processor, the problems of board complexity and cost in the existing technology are solved, and the low cost and independent control of board-level power supply is achieved.
Patent Information
- Application Number
- CN202510090164.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-05-13
AI Technical Summary
In the prior art, the power circuit of the Loongson 3A5000 processor and the supporting bridge chip uses multiple single-channel DCDC power supplies and LDOs, resulting in local complexity of the board and the inability to apply to boards with limited sizes, and the cost is increased. Moreover, the EC and power chips use foreign products, which cannot be independent and controllable.
Using domestic EC chips (SPK32AE102) with domestic power chips (two SM4644, two XC5121, one XC8224 and one SM4650), a power circuit structure for Loongson 3A5000 processor is designed to realize the independent and controllable design of board-level power supply solutions.
It realizes low cost and independent control of board-level power supply, simplifies circuit design, ensures circuit reliability, and solves the problems of board complexity and high cost.
Smart Images
Figure CN119987515A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power supply circuits, and in particular to a power supply circuit structure for a Loongson 3A5000 processor. Background Art
[0002] At present, most computers in China use foreign CPU chips, and information security cannot be guaranteed. When products need to process important information, the country requires personal computers, servers and other information products to have high autonomy and controllability.
[0003] The Loongson 3A5000 processor is a fully self-developed and controllable general-purpose processor for personal computers, servers and other information technology fields developed by Loongson Technology. The Loongson 7A1000 is a supporting bridge chip for the Loongson 3 series processors, which integrates an HT3.0 channel for connecting the Loongson 3 series processors.
[0004] At present, the processors and supporting bridge chips of the Loongson 3 series are mainly used in personal computers. Their fully autonomous and controllable characteristics ensure the information security of computers using the processors. The components used in the power supply circuit designed by this patent are all domestically produced chips, which ensures the autonomy and controllability of the entire system. In actual use, the power-on system can be expanded and modified according to needs.
[0005] The system power supplies required by the Loongson 3A5000 processor include 1.8V, 1.5V, 1.2V, 1.1V, etc. The system power supplies required by the Loongson 7A1000 bridge chip include 3.3V, 1.8V, 1.5V, 1.25V, 1.2V, and 1.1V. Among them, 3.3V, 5V, 1.1V, 1.2V, 1.5V, and 1.8V are provided by JW5079A of JWWate. SMG2032 of Shengbangwei generates 1.25V, and the CPU CORE voltage 1.1V is provided separately by ATS4650 of Yachuang Xinhan. Each power-on voltage is controlled by the EC chip GD32F207.
[0006] However, in the existing technical solution, since 7A1000 and 3A5000 have more than ten different power domains, multiple single-channel DCDC power supplies and LDOs are used. This technical solution uses a large number of circuit chips, which makes the board partly complex and cannot be applied to boards with limited size, which will also increase costs. At the same time, EC and power chips are selected from foreign products and cannot be independently controlled. In addition, the existing technology combines multiple power supplies, has high timing requirements, and the software design is relatively complex. Summary of the invention
[0007] In view of the above problems, the present invention provides a power circuit structure for a Loongson 3A5000 processor for overcoming the above problems or at least partially solving the above problems.
[0008] The present invention provides the following scheme:
[0009] A power circuit structure for a Loongson 3A5000 processor, comprising:
[0010] A power supply, the power supply is used to generate a 14V / 8A power supply;
[0011] A first domestically produced power chip, the first domestically produced power chip is connected to the power supply, and the first domestically produced power chip is used to generate the 1.0V / 50A power required by the CPU core power VDDN of the Loongson 3A5000 processor;
[0012] A second domestically produced power chip, the second domestically produced power chip is connected to the power supply, and the second domestically produced power chip is used to generate the 1.1V / 10A power required by the CPU core power VDDP of the Loongson 3A5000 processor;
[0013] A third domestic power chip, the third domestic power chip is connected to the power supply, and the third domestic power chip is used to generate the 1.2V / 1.5A power required by the CPU core power VDDE of the Loongson 3A5000 processor, the 1.5V / 2A power required by DDR3, the 1.8V / 0.6A power required by the CPU core power VDDE of the Loongson 3A5000 processor, and the 3.3V / 3A power required by the IO interface;
[0014] A fourth domestic power chip, the fourth domestic power chip is connected to the power supply, and the fourth domestic power chip is used to generate 5V / 2A power required for USB and FAN, 1.2V / 1.6A power required for DDR4 particles, 1.1V / 1.6A power required for VDDI, and 2.5V / 1A power required for DDR4VPP;
[0015] The fifth domestic power chip and the sixth domestic power chip, the fifth domestic power chip and the sixth domestic power chip are both connected to the 2.5V / 1A power output circuit; the fifth domestic power chip and the sixth domestic power chip are both used to generate 1.25V / 1A power supply.
[0016] Preferably: it also includes a domestic timing control chip, and the first domestic power chip, the second domestic power chip, the third domestic power chip, the fourth domestic power chip, the fifth domestic power chip and the sixth domestic power chip are all connected to the domestic timing control chip.
[0017] Preferably: the domestic timing control chip includes the domestic EC chip SPK32AE102.
[0018] Preferably: the first domestic power supply chip includes the SMIC SM4650 switching power supply.
[0019] Preferably: the second domestically produced power supply chip includes the Zhanxin XC8224 chip.
[0020] Preferably: the third domestic power supply chip and the fourth domestic power supply chip both include the SMIT SM4644 chip.
[0021] Preferably: the fifth domestic power supply chip and the sixth domestic power supply chip both include the Zhanxin XC512 chip.
[0022] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:
[0023] The power circuit structure for the Loongson 3A5000 processor provided in the embodiment of the present application adopts a domestic EC chip (SPK32AE102) and a domestic power chip (two SM4644, two XC5121, one XC8224 and one SM4650), and realizes the autonomous and controllable design of the board-level power solution under the premise of meeting the board power requirements. The low cost and autonomous controllability of the board-level power supply can be achieved at the same time, and the simplified circuit solution can also ensure the reliability of the circuit. It is worth promoting and using on a large scale.
[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 It is a schematic diagram of a power supply circuit structure for a Loongson 3A5000 processor provided in an embodiment of the present invention;
[0027] Figure 2 It is a circuit schematic diagram of the first domestically produced power chip provided by an embodiment of the present invention;
[0028] Figure 3 It is a circuit schematic diagram of a second domestically produced power chip provided in an embodiment of the present invention;
[0029] Figure 4 is a circuit schematic diagram of a third domestically produced power chip provided in an embodiment of the present invention;
[0030] Figure 5is a circuit schematic diagram of a fourth domestically produced power chip provided in an embodiment of the present invention;
[0031] Figure 6 It is a circuit schematic diagram of the fifth domestic power chip and the sixth domestic power chip provided in the embodiments of the present invention. DETAILED DESCRIPTION
[0032] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.
[0033] See also Figure 1 , is a power circuit structure for a Loongson 3A5000 processor provided by an embodiment of the present invention, such as Figure 1 As shown, the structure may include:
[0034] A power supply, the power supply is used to generate a 14V / 8A power supply;
[0035] A first domestically produced power chip, the first domestically produced power chip is connected to the power supply, and the first domestically produced power chip is used to generate the 1.0V / 50A power required by the CPU core power VDDN of the Loongson 3A5000 processor;
[0036] A second domestically produced power chip, the second domestically produced power chip is connected to the power supply, and the second domestically produced power chip is used to generate the 1.1V / 10A power required by the CPU core power VDDP of the Loongson 3A5000 processor;
[0037] A third domestic power chip, the third domestic power chip is connected to the power supply, and the third domestic power chip is used to generate the 1.2V / 1.5A power required by the CPU core power VDDE of the Loongson 3A5000 processor, the 1.5V / 2A power required by DDR3, the 1.8V / 0.6A power required by the CPU core power VDDE of the Loongson 3A5000 processor, and the 3.3V / 3A power required by the IO interface;
[0038] A fourth domestic power chip, the fourth domestic power chip is connected to the power supply, and the fourth domestic power chip is used to generate 5V / 2A power required for USB and FAN, 1.2V / 1.6A power required for DDR4 particles, 1.1V / 1.6A power required for VDDI, and 2.5V / 1A power required for DDR4VPP;
[0039] The fifth domestic power chip and the sixth domestic power chip, the fifth domestic power chip and the sixth domestic power chip are both connected to the 2.5V / 1A power output circuit; the fifth domestic power chip and the sixth domestic power chip are both used to generate 1.25V / 1A power supply.
[0040] The power circuit structure provided in the embodiment of the present application can provide all the power supplies required by the Loongson 3A5000 processor and its supporting bridge chip. Each power chip adopts domestic chips, which can be completely independent and controllable. It solves the problem that the Loongson 3A5000+7A1000 board uses too many non-domestic EC and power chips, which does not meet the requirements of independent control and the material cost is too high. The use of independent and controllable power chips and EC chips realizes the localization of board-level power solutions. The design of the 3A5000+7A1000 solution power supply is realized by using fewer power chips, which simplifies the design and meets the low-cost requirements.
[0041] In order to further simplify the complexity of the timing control circuit, the embodiment of the present application can also provide a domestic timing control chip, and the first domestic power chip, the second domestic power chip, the third domestic power chip, the fourth domestic power chip, the fifth domestic power chip and the sixth domestic power chip are all connected to the domestic timing control chip.
[0042] In specific implementation, the embodiment of the present application can provide that the domestic timing control chip includes the domestic EC chip SPK32AE102.
[0043] It is understandable that the various domestic power chips provided in the embodiments of the present application can be domestic power chips that can be used to implement the required power products in the prior art, and it is only necessary to ensure that the various power chips can be used in combination. For example, in one implementation, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the embodiment of the present application can also provide that the first domestic power chip includes the Guowei SM4650 switching power supply. The second domestic power chip includes the Zhanxin XC8224 chip. The third domestic power chip and the fourth domestic power chip both include the Guowei SM4644 chip. The fifth domestic power chip and the sixth domestic power chip both include the Zhanxin XC512 chip.
[0044] The input voltage of this structure uses a 14V / 8A power supply to power the system. The CPU core power VDDN voltage uses Guowei's SM4650 switching power supply to generate a 1.1V / 50A power supply. The VDDP core power 1.1V is generated by Zhanxin's XC8224; 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, and 1.1V are all generated by Guowei's SM4644 chip, and 1.25V and 1.15 are generated by Zhanxin's XC5121.
[0045] In summary, the power circuit structure for the Loongson 3A5000 processor provided in this application uses a domestic EC chip (SPK32AE102) with a domestic power chip (two SM4644, two XC5121, one XC8224 and one SM4650), and realizes the autonomous and controllable design of the board-level power solution while meeting the board power requirements. It can simultaneously achieve low cost and autonomous control of the board-level power supply, and the simplified circuit solution can also ensure the reliability of the circuit. It is worth promoting and using on a large scale.
[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0047] It can be known from the description of the above implementation methods that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application or certain parts of the embodiments.
[0048] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.
[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims
1. A power circuit structure for a Loongson 3A5000 processor, characterized in that: include: A power supply, the power supply is used to generate a 14V / 8A power supply; A first domestically produced power chip, the first domestically produced power chip is connected to the power supply, and the first domestically produced power chip is used to generate the 1.0V / 50A power required by the CPU core power VDDN of the Loongson 3A5000 processor; A second domestically produced power chip, the second domestically produced power chip is connected to the power supply, and the second domestically produced power chip is used to generate the 1.1V / 10A power required by the CPU core power VDDP of the Loongson 3A5000 processor; A third domestic power chip, the third domestic power chip is connected to the power supply, and the third domestic power chip is used to generate the 1.2V / 1.5A power required by the CPU core power VDDE of the Loongson 3A5000 processor, the 1.5V / 2A power required by DDR3, the 1.8V / 0.6A power required by the CPU core power VDDE of the Loongson 3A5000 processor, and the 3.3V / 3A power required by the IO interface; A fourth domestic power chip, the fourth domestic power chip is connected to the power supply, and the fourth domestic power chip is used to generate 5V / 2A power required for USB and FAN, 1.2V / 1.6A power required for DDR4 particles, 1.1V / 1.6A power required for VDDI, and 2.5V / 1A power required for DDR4VPP; The fifth domestic power chip and the sixth domestic power chip, the fifth domestic power chip and the sixth domestic power chip are both connected to the 2.5V / 1A power output circuit; the fifth domestic power chip and the sixth domestic power chip are both used to generate 1.25V / 1A power supply.
2. The power circuit structure for the Loongson 3A5000 processor according to claim 1, characterized in that: It also includes a domestic timing control chip, and the first domestic power chip, the second domestic power chip, the third domestic power chip, the fourth domestic power chip, the fifth domestic power chip and the sixth domestic power chip are all connected to the domestic timing control chip.
3. The power circuit structure for the Loongson 3A5000 processor according to claim 2, characterized in that: The domestic timing control chip includes the domestic EC chip SPK32AE102.
4. The power circuit structure for the Loongson 3A5000 processor according to claim 1, characterized in that: The first domestically produced power supply chip includes the Guowei SM4650 switching power supply.
5. The power circuit structure for the Loongson 3A5000 processor according to claim 1, characterized in that: The second domestically produced power supply chip includes the Zhanxin XC8224 chip.
6. The power circuit structure for the Loongson 3A5000 processor according to claim 1, characterized in that: The third domestic power supply chip and the fourth domestic power supply chip both include the SMIC SM4644 chip.
7. The power circuit structure for the Loongson 3A5000 processor according to claim 1, characterized in that: The fifth domestic power supply chip and the sixth domestic power supply chip both include the Zhanxin XC512 chip.