PC power supply parallel system
By setting up parallel signal lines at signal terminals in a PC power supply parallel system, the PS_ON signal is transmitted in a split path, which solves the problems of voltage loss and abnormal noise when multiple PC power supplies are connected in parallel, and improves the efficiency of parallel operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, when multiple PC power supplies are connected in parallel, the increased number of PS_ON signal transfer lines leads to voltage loss, affecting the efficiency of parallel operation. Furthermore, the transfer lines are susceptible to abnormal noise or false signaling due to the chassis fan.
By setting signal terminals inside the power supplies of the host and slave PCs and transmitting the PS_ON signal in parallel through parallel signal lines, it is ensured that the power supplies of the host and slave PCs receive the same power signal, reducing the number of transfer lines and avoiding voltage loss and abnormal noise.
This ensures that the PS_ON signals received by the host and slave PC power supplies are consistent, improving the operating efficiency of the parallel PC power supply system and reducing voltage loss and abnormal noise.
Smart Images
Figure CN121785445A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of PC power supply technology, and in particular to a PC power supply parallel system. Background Technology
[0002] A PC (Personal Computer) power supply is a switching power supply device specifically designed to provide stable DC power to internal terminal devices such as motherboards and graphics cards in desktop computers. It uses high-frequency conversion technology to convert 220V AC power into multiple DC power outputs of different voltages to power the various terminal devices (motherboard / graphics card) inside the computer. As the power consumption of these terminal devices (motherboard / graphics card) increases, the power supply capacity of a single PC power supply is insufficient to meet the overall power supply needs of the computer's internal terminal devices due to limitations in PC power supply specifications. Therefore, multiple PC power supplies are needed to power the various terminal devices of the computer. For example, a host PC power supply can power the motherboard and peripherals, while a slave PC power supply can power the graphics card. To ensure the normal operation of the computer, both the host and slave PC power supplies need to be powered on or off simultaneously.
[0003] In existing technologies, PC power supplies are typically controlled by the PS_ON (Power Supply On) signal issued by the computer motherboard. To control the simultaneous power-on or power-off of the host and slave PC power supplies, a converter line is usually added between the computer motherboard and the host PC power supply to transfer the PS_ON signal from the computer motherboard. Alternatively, a converter line can be added between the host and slave PC power supplies to transfer the host's PS_ON signal. In both conversion methods, the more slave devices there are, the more conversions are required, and the more PS_ON converter lines are needed. The increased number of PS_ON converter lines can cause voltage loss in the slave's PS_ON signal, resulting in inconsistency between the PS_ON signal received by the slave and the PS_ON signal received by the host, thus affecting the parallel operation efficiency of the PC power supply parallel system. Summary of the Invention
[0004] This application provides a PC parallel power supply for parallel control of the host PC power supply and the slave PC power supply via a PS_ON signal.
[0005] An embodiment of this application provides a PC power supply parallel system, comprising: a host PC power supply and at least one slave PC power supply, wherein,
[0006] The host PC power supply includes: a host power control signal pin, a host power control signal input terminal, and a host control signal terminal; each slave PC power supply includes: a slave power control signal input terminal and a slave control signal terminal;
[0007] The host power control signal pin is connected to the host power control signal input terminal via a signal line;
[0008] The host power control signal pin is connected to the host control signal terminal via a signal line. The host control signal terminal is connected to the slave control signal terminal of each slave PC power supply via a signal parallel line. The slave control signal terminal of each slave PC power supply is connected to the slave power control signal input terminal of each slave PC power supply.
[0009] Furthermore, the host control signal terminal is connected to the slave control signal terminal of each slave PC power supply via a signal parallel line, including:
[0010] The signal parallel line includes: a signal parallel line host terminal interface and at least one signal parallel line slave terminal interface;
[0011] The host control signal terminal is connected to the host terminal interface of the signal parallel line;
[0012] Each of the signal parallel lines is connected to the slave terminal interface of each slave PC power supply.
[0013] Furthermore, the host control signal terminal is connected to the host control signal terminal interface of the signal parallel line, including:
[0014] The host control signal terminal includes: a host signal terminal and a host ground terminal;
[0015] The signal parallel line host terminal interface includes: a parallel line host signal terminal and a parallel line host ground terminal;
[0016] The host signal terminal of the host control signal terminal is connected to the parallel host signal terminal of the signal parallel line host terminal interface; the host ground terminal of the host control signal terminal is connected to the parallel host ground terminal of the signal parallel line host terminal interface.
[0017] Furthermore, the feature is that each of the signal parallel lines' slave terminal interfaces is correspondingly connected to the slave control signal terminal of each slave PC power supply, including:
[0018] Each of the aforementioned signal parallel line slave terminal interfaces includes: a parallel line slave signal terminal and a parallel line slave ground terminal;
[0019] Each of the slave control signal terminals includes: a slave signal terminal and a slave ground terminal;
[0020] The slave signal terminal of each of the signal parallel lines is connected to the slave signal terminal of the slave control signal terminal of each slave PC power supply.
[0021] The slave ground terminal of each of the signal parallel lines is connected to the slave ground terminal of the slave control signal terminal of each slave PC power supply.
[0022] Furthermore, each signal parallel line slave terminal interface further includes: a parallel line slave signal switch;
[0023] When any of the parallel line slave signal switches is in the ON state, the power control signal is sent to the corresponding connected slave PC power supply through the signal parallel line;
[0024] When any of the parallel line slave signal switches is in the off state, the power control signal cannot be sent to the corresponding connected slave PC power supply through the signal parallel line.
[0025] Furthermore, the host power control signal pin is configured to receive control signals sent by the computer motherboard;
[0026] Based on the connection relationship between the host power control signal pin and the host power control signal input terminal, the computer motherboard sends the control signal sent by the computer motherboard to the host PC power supply through the host power control signal pin;
[0027] Based on the connection relationship between the host power control signal pin and the slave power control signal input terminal, the computer motherboard sends the control signal issued by the computer motherboard to the slave PC power supply through the host power control signal pin.
[0028] Furthermore, the host control signal terminal of the host PC power supply and the slave control signal terminal of each slave PC power supply are integrated into the same control signal terminal area of the PC power supply parallel system.
[0029] Furthermore, the aforementioned PC power supply parallel system also includes:
[0030] The control signal input unit is used to input the power control signal of the computer motherboard to the host power control signal pin so that the host PC power supply and the slave PC power supply can be controlled in parallel.
[0031] Furthermore, the slave PC power supply also includes a slave power control signal pin, which has the same function as the master power control signal pin.
[0032] Furthermore, the signal parallel line is a detachable signal parallel line.
[0033] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:
[0034] This embodiment of the application sets up host / slave signal terminals inside the host / slave PC power supply, thereby splitting the power control signal (PS_ON signal) issued by the computer motherboard into multiple paths inside the host PC power supply through related lines and parallel signal lines, and distributing them to each slave PC power supply through corresponding ports. This ensures that the power PS_ON signal received by the host PC power supply and each slave PC power supply is the same power PS_ON signal. Parallel control of each PC power supply is performed through the same power PS_ON signal, eliminating the need for redundant adapter lines. This reduces the voltage loss problem caused by adapter lines when multiple PC power supplies are running in parallel, making the PS_ON signal received by the slave consistent with the PS_ON signal received by the host, and improving the parallel operation efficiency of the PC power supply parallel system. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.
[0036] Figure 1 This is a circuit diagram of a PC power supply parallel system disclosed in an embodiment of this application;
[0037] Figure 2 This is a structural diagram of a signal parallel line disclosed in an embodiment of this application;
[0038] Figure 3 This is a diagram showing the integrated area of control signal terminals in a PC power supply parallel system disclosed in an embodiment of this application. Detailed Implementation
[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0040] In the description of the embodiments of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0041] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0042] A PC (Personal Computer) power supply is a switching power supply device specifically designed to provide stable DC power to internal terminal devices such as motherboards and graphics cards in desktop computers. As the power consumption of various terminal devices (motherboard / graphics card) increases, the power supply capacity of a single PC power supply is insufficient to meet the overall power requirements of the computer's internal terminal devices due to limitations in PC power supply specifications. Therefore, multiple PC power supplies can be used to power the various terminal devices of the computer. For example, a host PC power supply can power the graphics card, while slave PC power supplies can power other terminal devices. To ensure normal computer operation, both the host and slave PC power supplies must be powered on or off simultaneously. The power-on or power-off of the computer is typically controlled by the PS_ON (Power Supply On) signal issued by the motherboard.
[0043] In existing technologies, PC power supplies are typically independent. When controlling PC power supplies in parallel, the PS_ON signal from the motherboard is usually sent to the host PC power supply. This host PC power supply's PS_ON signal is then transferred to a slave PC power supply via an adapter cable. From there, it's transferred to another slave PC power supply via a similar adapter cable. This increased number of PS_ON adapter cables leads to voltage loss in the slave PC's PS_ON signal, causing inconsistencies between the received PS_ON signal and the host's signal. Furthermore, in situations requiring only a single power supply, the adapter cable between PC power supplies is often disconnected at one end, with the other end connected to a single PC power supply. This adapter cable can be affected by internal cooling fans, causing disturbances, unusual noises, or mis-conductions. This invention addresses the issue of inconsistent PS_ON signals received by the host and slave PC power supplies. One approach involves adding a converter line between the motherboard and the host PC power supply to relay the PS_ON signal from the motherboard before sending it to the slave PC power supply. However, this method suffers from voltage loss, especially under high current conditions, and uneven current distribution due to varying impedances. Both methods involve adding external converter lines to the PC power supply network; the more slave PC power supplies there are, the more redundant the converter lines become, increasing voltage loss and causing inconsistencies in the PS_ON signals received by the host and slave PC power supplies, thus affecting the parallel operation efficiency of the PC power supply parallel system. Therefore, this application provides a PC power supply parallel system that allows for efficient control via the PS_ON signal.
[0044] PS_ON is a low-active, TTL (transistor-to-transistor logic) compatible signal. Using PS_ON, computer motherboards can perform functions such as soft power-on / off, LAN wake-up, or modem wake-up, enabling remote power control. When PS_ON# is pulled low to a TTL level, the PC power supply should activate the four main DC outputs: +12VDC, +5VDC, +3.3VDC, and -12VDC. When PS_ON is pulled high to a TTL level or is open, the DC output rails must not output current and must maintain zero potential relative to ground. PS_ON# has no effect on the +5VSB (+5V standby voltage) output; +5VSB is always enabled as long as AC power is connected. All PC power supplies must meet this requirement to support systems with ALPM (Advanced Power Management).
[0045] The host PC power supply includes: host power control signal pin PS_ON, host power control signal input terminal P0, host power supply main-side motherboard P1, host power supply secondary-side motherboard P2, and host control signal terminal P3; the slave PC power supply includes: slave power control signal input terminal P0', slave power supply main-side motherboard P1', slave power supply secondary-side motherboard P2', and slave control signal terminal P3'; the host power control signal pin PS_ON is connected to the host power control signal input terminal P0 via a signal line. This line can serve as the main path for the PS_ON signal, and the computer motherboard can send the corresponding PS_ON signal to the host PC power supply through this main path.
[0046] The host power control signal pin PS_ON is connected to the host control signal terminal P3 via a signal line. The host control signal terminal P3 is connected to the slave control signal terminal P3' of the slave PC power supply via a signal parallel line (i.e., based on the signal line, the host terminal interface P4 and the slave terminal interface P4' are connected via the signal parallel line shown in the diagram). The slave control signal terminal P3' is connected to the slave power supply control signal input terminal P0' via a signal line. This line can be used as a PS_ON signal branch, and the computer motherboard can send the corresponding PS_ON signal to the slave PC power supply through this PS_ON signal branch.
[0047] When the PS_ON signal is low, the PS_ON signal received by the host power supply main board P1 is also low; through the host control signal terminal P3, the PS_ON signal received by the slave control signal terminal P3' in the slave power supply main board P1' branch is also low.
[0048] The above-mentioned parallel PC power supply system can be configured by setting up master / slave control signal terminals P3' inside the master / slave unit. The PS_ON signal is split into two paths within the master PC power supply through the main PS_ON signal path and the PS_ON signal branch path. One path goes to the master PC power supply and the other goes to the slave PC power supply. By processing the PS_ON signal inside the PC power supply, the signals received by the master PC power supply and the slave PC power supply are consistent. This reduces the need for high-current terminal switching, reduces unnecessary voltage loss, and improves the efficiency of the parallel PC power supply system.
[0049] See Figure 2 In this embodiment of the application, the signal parallel line includes: a signal parallel line host terminal interface P4 and a signal parallel line slave terminal interface P4' (multiple interfaces can be set based on the number of slave PC power supplies), and the signal parallel line host terminal interface P4 includes: a host signal terminal and a host ground terminal, and the signal parallel line slave terminal interface P4' includes: a parallel line slave signal terminal and a parallel line slave ground terminal;
[0050] The host control signal terminal P3 includes a host signal terminal and a host ground terminal; the slave control signal terminal P3' includes a slave signal terminal and a slave ground terminal.
[0051] In the PS_ON signal branch, the host signal terminal of the host control signal terminal P3 is connected to the host signal terminal of the parallel line host terminal interface P4; the host ground terminal of the host control signal terminal P3 is connected to the host ground terminal of the parallel line host terminal interface P4; the slave signal terminal of the parallel line slave terminal interface P4' is connected to the slave signal terminal of the slave control signal terminal P3' of the slave PC power supply; the slave ground terminal of the parallel line slave terminal interface P4' is connected to the slave ground terminal of the slave control signal terminal P3' of the slave PC power supply.
[0052] The host ground terminal of the host control terminal and the host ground terminal of the parallel line host terminal interface P4 are connected together to the ground terminal of the host power supply secondary side main board P2; the slave ground terminal of the slave control terminal and the slave ground terminal of the parallel line slave terminal interface P4' are connected together to the ground terminal of the slave power supply secondary side main board P2'.
[0053] Based on the above connection method, it can be ensured that the PS_ON signal sent by the computer motherboard is sent to the slave PC power supply through the PS_ON signal branch, and that the PS_ON signal received by the slave PC power supply is consistent with the PS_ON signal received by the host PC power supply.
[0054] like Figure 3 As shown, in the PC power supply parallel system of this application embodiment, the host control signal terminal P3 of the host PC power supply and the slave control signal terminal P3' of the slave PC power supply can be integrated into the control signal terminal area of the PC power supply parallel signal; the corresponding signal parallel lines can be set more concisely, and the signal connection lines are signal parallel lines that can be detached at both ends; when only a single PC power supply is needed (i.e. only the host PC power supply is needed), the signal parallel lines can be directly disconnected, and there will be no disturbance caused by the heat dissipation fan inside the chassis, resulting in abnormal noise or misleading communication.
[0055] Furthermore, in cases where only a portion of the slave PC power supply is required, in this embodiment, each slave terminal interface P4' of the signal parallel line is also equipped with a parallel line slave signal switch, which can correspondingly control whether each slave PC power supply can receive the power control signal (i.e., PS_ON signal) sent by the computer motherboard; when the parallel line slave signal switch is on, the power control signal can be sent to the corresponding connected slave PC power supply through the signal parallel line; when the parallel line slave signal switch is off, the power control signal cannot be sent to the corresponding connected slave PC power supply through the signal parallel line.
[0056] In addition, such as Figure 1 As shown, in some embodiments, the slave PC power supply is also provided with a slave power control signal pin PS_ON'. The slave power control signal pin PS_ON' has the same function as the host power control signal pin PS_ON of the host PC power supply. When the power demand changes, the slave PC power supply can also divide the PS_ON signal into multiple paths based on the configuration of the slave power control signal pin PS_ON' and related terminals.
[0057] The PC power supply parallel system of this application embodiment also includes a control signal input unit, used to input the power control signal of the computer motherboard to the host power control signal pin PS_ON. The host power control signal pin PS_ON is used to receive the control signal sent by the computer motherboard. Based on the connection relationship between the host power control signal pin PS_ON and the host power control signal input terminal P0 (i.e., the PS_ON signal main line), the computer motherboard sends the control signal sent by the computer motherboard to the host PC power supply through the host power control signal pin PS_ON. Based on the connection relationship between the host power control signal pin PS_ON and the slave power control signal input terminal P0' (i.e., the PS_ON signal branch line), the computer motherboard can send the control signal sent by the computer motherboard to the slave PC power supply through the host power control signal pin PS_ON, thereby realizing the parallel control of the host PC power supply and the slave PC power supply of the PC power supply parallel system based on the PS_ON signal main line and the PS_ON signal branch line.
[0058] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0059] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.
[0060] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0061] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0062] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
Claims
1. A PC power supply parallel connection system, characterized in that, include: The host PC power supply and at least one slave PC power supply, wherein, The host PC power supply includes: a host power control signal pin, a host power control signal input terminal, and a host control signal terminal; each slave PC power supply includes: a slave power control signal input terminal and a slave control signal terminal; The host power control signal pin is connected to the host power control signal input terminal via a signal line; The host power control signal pin is connected to the host control signal terminal via a signal line. The host control signal terminal is connected to the slave control signal terminal of each slave PC power supply via a signal parallel line. The slave control signal terminal of each slave PC power supply is connected to the slave power control signal input terminal of each slave PC power supply.
2. The PC power supply parallel system according to claim 1, characterized in that, The host control signal terminal is connected to the slave control signal terminal of each slave PC power supply via a signal parallel line, including: The signal parallel line includes: a signal parallel line host terminal interface and at least one signal parallel line slave terminal interface; The host control signal terminal is connected to the host terminal interface of the signal parallel line; Each of the signal parallel lines is connected to the slave terminal interface of each slave PC power supply.
3. The PC power supply parallel system according to claim 2, characterized in that, The host control signal terminal is connected to the host control signal terminal interface of the signal parallel line, including: The host control signal terminal includes: a host signal terminal and a host ground terminal; The signal parallel line host terminal interface includes: a parallel line host signal terminal and a parallel line host ground terminal; The host signal terminal of the host control signal terminal is connected to the parallel host signal terminal of the signal parallel line host terminal interface; the host ground terminal of the host control signal terminal is connected to the parallel host ground terminal of the signal parallel line host terminal interface.
4. The PC power supply parallel system according to claim 2, characterized in that, Each of the signal parallel lines' slave terminal interfaces is correspondingly connected to the slave control signal terminal of each slave PC power supply, including: Each of the aforementioned signal parallel line slave terminal interfaces includes: a parallel line slave signal terminal and a parallel line slave ground terminal; Each of the slave control signal terminals includes: a slave signal terminal and a slave ground terminal; The slave signal terminal of each of the signal parallel lines is connected to the slave signal terminal of the slave control signal terminal of each slave PC power supply. The slave ground terminal of each of the signal parallel lines is connected to the slave ground terminal of the slave control signal terminal of each slave PC power supply.
5. The PC power supply parallel system according to claim 2, characterized in that, Each parallel line slave terminal interface also includes: a parallel line slave signal switch; When any of the parallel line slave signal switches is in the ON state, the power control signal is sent to the corresponding connected slave PC power supply through the signal parallel line; When any of the parallel line slave signal switches is in the off state, the power control signal cannot be sent to the corresponding connected slave PC power supply through the signal parallel line.
6. The PC power supply parallel system according to claim 1, characterized in that, The host power control signal pin is configured to receive control signals sent by the computer motherboard; Based on the connection relationship between the host power control signal pin and the host power control signal input terminal, the computer motherboard sends the control signal sent by the computer motherboard to the host PC power supply through the host power control signal pin; Based on the connection relationship between the host power control signal pin and the slave power control signal input terminal, the computer motherboard sends the control signal issued by the computer motherboard to the slave PC power supply through the host power control signal pin.
7. The PC power supply parallel system according to claim 1, characterized in that, The host control signal terminal of the host PC power supply and the slave control signal terminal of each slave PC power supply are integrated in the same control signal terminal area of the PC power supply parallel system.
8. The PC power supply parallel system according to claim 1, characterized in that, Also includes: The control signal input unit is used to input the power control signal of the computer motherboard to the host power control signal pin so that the host PC power supply and the slave PC power supply can be controlled in parallel.
9. The PC power supply parallel system according to claim 1, characterized in that, The slave PC power supply also includes a slave power control signal pin, which has the same function as the master power control signal pin.
10. The PC power supply parallel system according to claim 1, characterized in that, The signal parallel line is a detachable signal parallel line.