High-performance mainboard CPU power supply circuit and electronic equipment thereof

Abstract

The utility model provides a high-performance mainboard CPU power supply circuit and an electronic device thereof, and relates to the technical field of CPU power supply, the circuit adopts a one-to-two scheme of PWM of a master control power supply chip, that is, each group of PWM signals control two paths of driving circuits at the same time, output phase number multiplication can be realized without changing an internal circuit of the power supply chip, and the power supply efficiency is improved. And the current bearing capability of the circuit is obviously enhanced. Besides, the circuit adopts an all-digital master control power supply chip, power supply parameters are digitized, debugging is convenient, the circuit integration degree is high, the efficiency is high, the performance is excellent, and the circuit has great market competitive advantages. The problem that an existing power supply scheme cannot meet the power supply requirement of a new-generation high-power-consumption CPU is solved.

Description

Technical Field

[0001] This utility model relates to the field of CPU power supply technology, specifically to a high-performance motherboard CPU power supply circuit and its electronic equipment. Background Technology

[0002] In modern computer systems, the CPU, as the core processing unit, often experiences a significant increase in power consumption with each performance improvement. As chip manufacturers like Intel continue to release new generations of high-performance processors, such as the Arrow Lake platform, the demands on power management are becoming increasingly stringent. These new-generation CPUs not only require higher power delivery but also precise voltage control and rapid dynamic response capabilities to ensure stable operation under varying load conditions.

[0003] Traditional motherboard CPU power supply solutions typically employ a main power control chip, using a set of PWM signals to control one drive circuit to achieve power supply. This approach was sufficient for the era of low-power CPUs, but its limitations are becoming increasingly apparent with the advent of new-generation high-power CPUs. On one hand, the main power control chip has a limited number of PWM signal groups, making it difficult to meet the multi-phase power supply requirements of high-power CPUs; on the other hand, increasing the number of PWM signal groups leads to larger chip package size and increased cost, which is unacceptable for motherboard designs that prioritize high performance and cost-effectiveness.

[0004] Furthermore, traditional power supply solutions also have bottlenecks in current carrying capacity. As the number of CPU cores increases and the frequency rises, the power demand for its core voltage (VCORE) increases significantly. However, existing single-channel PWM control solutions are unable to provide sufficient current, which may lead to insufficient power supply under high loads, thereby affecting CPU performance and even causing system instability.

[0005] Therefore, existing motherboard CPU power supply technology can no longer meet the needs of the new generation of high-performance CPUs. There is an urgent need for an innovative power management solution that can significantly improve the current carrying capacity and power supply efficiency of the circuit without increasing the complexity and cost of the main control power chip, while maintaining good dynamic response performance and voltage stability to adapt to the power supply requirements of the new generation of high-power CPUs.

[0006] In view of the above, this application is hereby submitted. Utility Model Content

[0007] This utility model discloses a high-performance motherboard CPU power supply circuit and its electronic equipment, which aims to solve the problem that existing power supply solutions cannot meet the power supply requirements of the new generation of high-power CPUs.

[0008] This utility model discloses a high-performance motherboard CPU power supply circuit, which includes: a CPU component, a main control power module, a VCORE power supply circuit, a VCCSA power supply circuit, and a VCCGT power supply circuit. The output terminal of the CPU component is electrically connected to the input terminal of the main control power module. The first output terminal of the main control power module is electrically connected to the input terminal of the VCORE power supply circuit. The second output terminal of the main control power module is electrically connected to the input terminal of the VCCSA power supply circuit. The third output terminal of the main control power module is electrically connected to the input terminal of the VCCGT power supply circuit. The output terminals of the VCORE power supply circuit, the VCCSA power supply circuit, and the VCCGT power supply circuit are respectively electrically connected to the core power supply terminal, the integrated graphics power supply terminal, and the auxiliary power supply terminal of the CPU component.

[0009] The first output terminal of the main control power module includes multiple first PWM pin interfaces, each of which has two driver chips. The second and third output terminals of the main control power module each include a second PWM pin interface and a third PWM pin interface. Both the second and third PWM pin interfaces are connected to only one driver chip to provide power to the CPU components.

[0010] This utility model also discloses an electronic device, which includes a device body and a high-performance motherboard CPU power supply circuit as described in any of the above, wherein the high-performance motherboard CPU power supply circuit is configured inside the device body.

[0011] In summary, the high-performance motherboard CPU power supply circuit provides an efficient, flexible, and cost-optimized solution for the power supply requirements of the new generation of high-power CPUs. Through ingenious circuit design, it significantly improves the performance of the power supply circuit without increasing the complexity of the main control power chip.

[0012] Specifically, this circuit utilizes the PWM signal of the main control power chip and, through an innovative control method, achieves simultaneous control of multiple drive circuits. This significantly increases the number of output phases, enhances the circuit's current carrying capacity, and effectively solves the high-power supply problem of next-generation CPUs. Furthermore, this design boasts advantages such as simple circuit structure, fewer components, and ease of wiring and debugging. It also supports advanced power management protocols, dynamically adjusting power supply parameters according to the CPU's operating status to ensure efficient and stable power supply. Not only does it meet the power supply requirements of next-generation high-power CPUs, but it also reduces R&D and production costs through optimized circuit design, improves the product's market competitiveness, and provides a novel technical approach for the design of high-performance computer motherboards. Attached Figure Description

[0013] Figure 1 This is an overall circuit block diagram of a high-performance motherboard CPU power supply circuit provided in this embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of a high-performance motherboard CPU power supply circuit provided in an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the main control power module circuit provided in an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the enabling component circuit provided in an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the first output circuit in the VCORE drive output control circuit provided in this embodiment of the utility model;

[0018] Figure 6 This is a schematic diagram of the VCCGT drive output control circuit provided in an embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram of the VCCSA drive output control circuit provided in an embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the CPU-side VCORE power supply module provided in this embodiment of the utility model;

[0021] Figure 9 This is a schematic diagram of the CPU-side VCCGT / VCCSA power supply module provided in this embodiment of the utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Please see Figures 1 to 2 The first embodiment of this utility model discloses a high-performance motherboard CPU power supply circuit, which includes: a CPU component, a main control power module, a VCORE power supply circuit, a VCCSA power supply circuit, and a VCCGT power supply circuit. The output terminal of the CPU component is electrically connected to the input terminal of the main control power module. The first output terminal of the main control power module is electrically connected to the input terminal of the VCORE power supply circuit. The second output terminal of the main control power module is electrically connected to the input terminal of the VCCSA power supply circuit. The third output terminal of the main control power module is electrically connected to the input terminal of the VCCGT power supply circuit. The output terminals of the VCORE power supply circuit, the VCCSA power supply circuit, and the VCCGT power supply circuit are respectively electrically connected to the core power supply terminal, the integrated graphics power supply terminal, and the auxiliary power supply terminal of the CPU component.

[0025] The first output terminal of the main control power module includes multiple first PWM pin interfaces, each of which has two driver chips. The second and third output terminals of the main control power module each include a second PWM pin interface and a third PWM pin interface. Both the second and third PWM pin interfaces are connected to only one driver chip to provide power to the CPU components.

[0026] Specifically, in this embodiment, the power supply circuit primarily consists of a CPU component, a main control power module, a VCORE power supply circuit, a VCCSA power supply circuit, and a VCCGT power supply circuit. These components are precisely electrically connected to achieve efficient and stable power supply. Specifically, the output terminal of the CPU component is electrically connected to the input terminal of the main control power module. As the core control unit of the entire power supply circuit, the main control power module has its first output terminal electrically connected to the input terminal of the VCORE power supply circuit, its second output terminal electrically connected to the input terminal of the VCCSA power supply circuit, and its third output terminal electrically connected to the input terminal of the VCCGT power supply circuit. The output terminals of the VCORE power supply circuit, the VCCSA power supply circuit, and the VCCGT power supply circuit are respectively electrically connected to the core power supply terminal, the integrated graphics power supply terminal, and the auxiliary power supply terminal of the CPU component, thereby providing precise power to different parts of the CPU.

[0027] In the design of the main control power module, its first output terminal includes multiple first PWM pin interfaces. This is one of the key innovations of this circuit. Each first PWM pin interface is connected to two driver chips respectively. Through this "one-to-two" control method, the number of output phases can be multiplied without changing the internal circuitry of the main control power chip, significantly enhancing the circuit's current carrying capacity. This design not only meets the high current requirements of the new generation of high-power CPUs for VCORE core power supply, but also avoids the problems of increased chip package size and cost caused by increasing the number of PWM signal groups, effectively reducing R&D and production costs and improving the product's market competitiveness.

[0028] Meanwhile, the second and third output terminals of the main control power module each include a second PWM pin interface and a third PWM pin interface. Unlike the "one-to-two" design of the first output terminal, both the second and third PWM pin interfaces are connected to only one driver chip. This differentiated connection method is carefully designed based on the current requirements of the VCCSA and VCCGT power supply circuits. The current requirements of VCCSA and VCCGT are relatively lower than those of VCORE, so a single driver chip can meet their power supply needs while ensuring the overall efficiency and stability of the circuit.

[0029] In the VCORE power supply circuit, multiple driver chips, controlled by the first PWM pin interface of the main control power module, control the switching of their internal upper and lower MOSFETs. The SW switching signals output by these driver chips are filtered by multiple inductors and output capacitors, ultimately outputting a stable VCORE voltage to provide efficient and reliable power to the CPU core. This process not only ensures the stable operation of the CPU core under high load but also improves power conversion efficiency and reduces energy consumption through optimized circuit design.

[0030] The VCCSA and VCCGT power supply circuits operate on similar principles to the VCORE power supply circuit, but are specifically optimized to meet their respective current and voltage requirements. The driver chips, controlled by the second and third PWM pin interfaces of the main power module, provide precise power to the CPU's integrated graphics and auxiliary components. This distributed power supply approach allows the entire power supply circuit to better adapt to the diverse needs of different parts of the CPU, improving power supply flexibility and reliability.

[0031] Furthermore, this power supply circuit supports the Intel CPU's SVID power management protocol. This means that the voltage output values ​​of VCORE, VCCGT, and VCCSA can be dynamically adjusted according to the CPU's operating state. The CPU will autonomously send corresponding SVID request information to the power chip based on its own operating voltage requirements. After receiving these request information, the main power control module will adjust the output voltage value through internal conversion and PWM control, thereby providing precise power supply to the CPU. This dynamic adjustment capability not only improves the power supply efficiency but also extends the CPU's lifespan, further enhancing the performance and stability of the entire system.

[0032] Please see Figure 8 and Figure 9 Preferably, the CPU component includes a CPU module, a VCORE power supply module, a VCCSA power supply module, and a VCCGT power supply module. The SVID interface of the CPU module is electrically connected to the SVID interface of the main control power module. The output terminal of the VCORE power supply circuit is electrically connected to the input terminal of the VCORE power supply module. The output terminal of the VCCSA power supply circuit is electrically connected to the input terminal of the VCCSA power supply module. The output terminal of the VCCGT power supply circuit is electrically connected to the input terminal of the VCCGT power supply module. The VCORE power supply module provides core power to the CPU module, the VCCSA power supply module provides integrated graphics power to the CPU module, and the VCCGT power supply module provides auxiliary power to the CPU module.

[0033] Specifically, in this embodiment, the CPU component is subdivided into a CPU module, a VCORE power supply module, a VCCSA power supply module, and a VCCGT power supply module. This modular design not only makes the functions of each power supply section clearer but also facilitates subsequent maintenance and upgrades. The CPU module is the core of the entire system, responsible for executing various computing tasks. To ensure the stable operation of the CPU module under different working conditions, the VCORE power supply module, VCCSA power supply module, and VCCGT power supply module are specially designed to provide precise power to the core, integrated graphics, and auxiliary components, respectively.

[0034] In terms of electrical connection, the SVID interface of the CPU module is electrically connected to the SVID interface of the main power supply module. This connection method allows the CPU module to send dynamic voltage adjustment requests to the main power supply module via the SVID protocol according to its own operating state. After receiving these requests, the main power supply module dynamically adjusts the duty cycle and frequency of the PWM signal through its internal control logic and algorithms, thereby achieving precise control of the VCORE, VCCSA, and VCCGT power supply circuits. This dynamic adjustment mechanism not only improves the power supply utilization efficiency but also extends the lifespan of the CPU module, further enhancing the performance and stability of the entire system.

[0035] The output terminal of the VCORE power supply circuit is electrically connected to the input terminal of the VCORE power supply module. As the core power supply unit, the design of the VCORE power supply module is crucial. In this embodiment, the VCORE power supply module employs efficient power conversion technology and advanced circuit design, enabling it to stably convert the voltage output from the VCORE power supply circuit into the core voltage, providing stable and efficient power to the core components of the CPU module. This design not only meets the high core voltage requirements of next-generation high-power CPUs but also reduces voltage ripple and noise through optimized circuit layout, improving the overall system performance.

[0036] Similarly, the output of the VCCSA power supply circuit is electrically connected to the input of the VCCSA power supply module, and the output of the VCCGT power supply circuit is electrically connected to the input of the VCCGT power supply module. The VCCSA and VCCGT power supply modules are responsible for providing power to the integrated graphics and auxiliary components of the CPU module, respectively. The design of these two modules fully considers the voltage and current requirements of different parts, ensuring stable operation of the CPU module in various operating modes through precise power management. For example, the VCCSA power supply module uses a high-efficiency filtering circuit and a stable power conversion chip, effectively reducing voltage fluctuations and providing high-quality power to the integrated graphics. The VCCGT power supply module, through optimized circuit design, improves power conversion efficiency, reduces energy consumption, and ensures stable power supply to the auxiliary components.

[0037] Please see Figure 3 Preferably, the chip model of the main control power module can be MP29000-A.

[0038] In this embodiment, the MP29000-A is a high-performance, fully digital main control power supply chip designed specifically to meet the power supply requirements of next-generation high-power CPUs. It possesses powerful PWM signal control capabilities, enabling precise adjustment of output voltage and current to ensure stable CPU operation under various working conditions. In this embodiment, the MP29000-A, as the core chip of the main control power module, achieves precise control of the VCORE, VCCSA, and VCCGT power supply circuits through its multiple PWM pin interfaces. Specifically, the first output terminal of the MP29000-A chip includes multiple first PWM pin interfaces, each connecting two driver chips, employing a "one-to-two" control method, significantly increasing the number of output phases of the VCORE power supply circuit. This design, without altering the internal circuitry of the main control power chip, significantly improves the circuit's current carrying capacity, effectively addressing the high current requirements of the core voltage (VCORE) for next-generation high-power CPUs. Meanwhile, the second and third output terminals of the MP29000-A each include a second PWM pin interface and a third PWM pin interface, which are respectively connected to a driver chip to provide stable control signals for the VCCSA and VCCGT power supply circuits.

[0039] The MP29000-A chip also supports the Intel CPU's SVID power management protocol. Electrically connected to the CPU module's SVID interface via its SVID interface, it can dynamically adjust the supply voltage according to the CPU's operating status. This dynamic adjustment mechanism not only improves power efficiency but also extends the CPU's lifespan, further enhancing the overall system performance and stability. Furthermore, the MP29000-A chip integrates multiple protection functions, such as overcurrent protection (OCP), overvoltage protection (OVP), undervoltage protection (UVP), and overtemperature protection (OTP), ensuring the safe operation of the power supply circuit under various abnormal conditions. That is, the three SVID signals SVID_CLK_VR (SVID clock signal), SVID_DATA_VR (SVID data signal), and SVID_ALERT#_VR (SVID warning signal) on pins 25 to 27 of the MP29000-A chip are respectively connected to the corresponding SVID signals on the CPU side. The voltage output values ​​of VCORE, VCCGT, and VCCSA are dynamically regulated and controlled by the SVID signals. The CPU will send corresponding SVID request information to the power supply chip according to its own operating voltage requirements under different operating states. The power supply chip reads the SVID information data sent by the CPU, converts it internally, and finally the UP1 main control power chip PWM controls and adjusts the output voltage to provide the corresponding voltage to the CPU side for operation.

[0040] Furthermore, the MP29000-A chip is easy to debug and optimize. As the MP29000-A is a digital power supply chip, most important power parameters are stored in its internal registers (including PHASE_NUM (number of power phases), ICCMAX (maximum current), Frequency (switching frequency), OCP (overcurrent protection), OVP (overvoltage protection), UVP (undervoltage protection), and OTP (overtemperature protection). By connecting the SMB_DA / SMB_CK (I2C BUS) signals on pins 30 and 31 of the power supply chip using the manufacturer's TooL debugging tool, developers can easily use software to read and adjust the internal register parameters, quickly optimizing the power supply circuit's performance. This flexibility allows the power supply circuit of this invention to adapt to different CPU models and various complex application scenarios, giving it broad applicability and market competitiveness.

[0041] In practical applications, using the MP29000-A as the main power control module chip brings significant benefits to the entire power supply circuit. First, the MP29000-A's high-performance PWM control capability enables the VCORE power supply circuit to provide up to several hundred amps of current, meeting the core power supply requirements of next-generation high-power CPUs. Second, through the dynamic adjustment function of the SVID protocol, the power supply circuit can adjust the output voltage in real time according to the actual load of the CPU, optimizing power efficiency and reducing energy consumption. Furthermore, the MP29000-A's high integration design reduces the number of external components, simplifies circuit layout, lowers R&D and production costs, and simultaneously improves product reliability and stability.

[0042] Please see Figure 4 Preferably, it further includes an enabling component, the output terminal of which is electrically connected to the enabling terminal of the main control power module. When the motherboard power switch is not turned on, the first and second switching transistors of the enabling component are not conducting, and the third and fourth switching transistors of the enabling component are conducting, and the main control power module stops working. When the motherboard power switch is turned on, the first and second switching transistors of the enabling component are grounded, and the third and fourth switching transistors of the enabling component are not conducting, and the main control power module starts working.

[0043] Preferably, the first switching transistor of the enabling component is an NPN transistor, the second switching transistor of the enabling component is an NMOS transistor, the third switching transistor of the enabling component is an N-channel MOSFET, and the fourth switching transistor of the enabling component is an N-channel MOSFET.

[0044] Specifically, in this embodiment, when the motherboard is connected to the power supply, the motherboard power switch is turned on. The main control power module UP1 has the following input signals: pin 21 VI N_SEN input voltage detection signal, pin 49 VDD33 input +3VS voltage, pin 36 EN (chip turn-on control voltage signal) and all other input signals are normal. Everything is ready and the power chip starts working.

[0045] In this embodiment, after the motherboard is connected to the ATX power supply, when the motherboard power switch is not turned on, +VDD2, SLP_S3# and +3VS are not powered on, while +3VSB and +5VSB Standby are powered on at a high level. At this time, the first switch Q1 and the second switch PQ1 are not conducting, the first pin of the third switch QP1 and the fourth switch QP2 is at a high level, the MOSFET is in a conducting state, the MP29000_EN signal is pulled to ground, and the main control power module UP1 does not work.

[0046] When the motherboard power switch is turned on, +VDD2, SLP_S3#, +3VS QP1, +3VSB, and +5VSB are all at high levels. At this time, the first switch Q1 and the second switch PQ1 are connected and pulled to ground, while the third switch QP1 and the fourth switch QP2 are not connected. The +3VS pull-up level is output to the MP29000_EN signal through RP30, and the main control power module UP1 starts working. RP32 and CP7 form an RC delay circuit, which is used to set the power-on time of MP29000_EN, thereby adjusting the control timing.

[0047] By introducing an enabling component, this power supply circuit has demonstrated significant benefits in practical applications. Firstly, the enabling component's design allows the main power module to completely stop operating when the motherboard power switch is not on, avoiding unnecessary energy consumption and improving system energy efficiency. Secondly, when the motherboard power switch is on, the enabling component responds quickly, ensuring the main power module starts up promptly, providing stable power support to the CPU power supply circuit, thereby improving system reliability and stability. Furthermore, the enabling component's circuit design utilizes common semiconductor devices such as NPN transistors, NMOS transistors, and N-channel MOSFETs, which are characterized by low cost and stable performance. By appropriately combining these devices, the enabling component not only achieves precise control of the main power module but also optimizes circuit complexity and cost. This design makes the entire power supply circuit simpler, more efficient, and possesses high practicality and market competitiveness.

[0048] In practical applications, the introduction of the enabling component also facilitates system debugging and maintenance. By controlling the switching state of the enabling component, developers can easily test and debug the main control power module, quickly locate and resolve problems. This flexibility allows this power supply circuit to adapt to different application scenarios and needs, and it has broad application prospects.

[0049] Please see Figure 5 The VCORE drive output control circuit has a total of 18 outputs. Figure 5 The first group is shown; due to the similarity of the circuits, it will not be described again in the attached diagram. Preferably, the VCORE power supply circuit includes 18 DrMOS driver chips, 18 first-channel inductors, and a first output capacitor. The first output terminal of the main control power module includes 9 first PWM pin interfaces. Each of the PWM pin interfaces is connected to two DrMOS driver chips. The SW switching signal output by each DrMOS driver chip passes sequentially through its corresponding first-channel inductor and first output capacitor, and is electrically connected to the core power supply terminal of the CPU component.

[0050] Specifically, in this embodiment, the nine PWM signals (PWM1 to PWM9) on pins 48, 47, 46, 45, 44, 43, 42, 41, and 40 of the main control power module UP1 are respectively connected to the PWM signals on pin 34 of 18 DrMOS driver chips located at positions UP3, UP5, UP2, UP6, UP4, UP7, UP8, UP11, UP10, UP12, UP9, UP13, UP14, UP17, UP16, UP19, UP15, and UP18. Each PWM signal line is connected to two DrMOS driver chips. The system provides PWM control signals to 18 DrMOS driver chips, which in turn control the upper and lower MOS transistors inside each chip to switch. The SW switch signal is output from pins 10 to 19 of the driver chip. After being filtered by the 18 channel inductors and output capacitors of LP1, LP4, LP2, LP5, LP3, LP6, LP7, LP10, LP8, LP11, LP9, LP12, LP13, LP16, LP14, LP17, LP15, and LP18, the VCORE voltage is finally output to provide core power to the CPU.

[0051] Through this design, the VCORE power supply circuit has demonstrated significant benefits in practical applications. First, the multi-phase power supply design with 18 DrMOS driver chips significantly improves the circuit's current carrying capacity, meeting the high current demands of next-generation high-power CPUs on core voltage. This design not only improves power supply efficiency but also reduces thermal stress on individual components by distributing the current load, thus enhancing system reliability. Second, the "one-to-two" control mode is achieved through the nine first PWM pin interfaces of the main control power module, eliminating the need to add additional PWM signal groups. This allows for a doubling of the output phase number without altering the internal circuitry of the main control power chip. This design not only optimizes circuit complexity and cost but also enhances system flexibility and scalability.

[0052] Furthermore, the SW switching signal output by each DrMOS driver chip passes sequentially through its corresponding first channel inductor and first output capacitor. This filtering design significantly reduces voltage ripple and noise, improving power supply quality. This is crucial for the stable operation of the CPU core, especially under high load and high frequency conditions. In addition, this design also boasts high integration and efficiency. Through optimized circuit layout and component selection, the entire VCORE power supply circuit is not only compact but also efficiently converts and transmits electrical energy, reducing energy consumption and improving overall system performance.

[0053] In practical applications, the VCORE power supply circuit provides stable and efficient power support for next-generation high-power CPUs. For example, in applications such as high-performance computing, graphics processing, and data centers, CPUs often need to operate stably under high loads for extended periods. The VCORE power supply circuit of this invention ensures that the CPU receives high-quality power under various operating conditions, thereby improving the overall performance and reliability of the system.

[0054] In addition, the VCORE_CS1 to CS9 signals of pins 8, 7, 6, 5, 4, 3, 2, 1, and 56 of the main control power module UP1 are connected to the IOUT signal of pin 38 of the 18 DrMOS driver chips, respectively, for detecting the output current of that channel; the VR_TEMP signal of pin 50 of the main control power module UP1, through resistor RP20, is connected to the TOUT / FLT signal of pin 36 of the 18 DrMOS chips, respectively, for detecting the operating temperature of the corresponding DrMOS driver chip.

[0055] Please see Figure 7Preferably, the VCCSA power supply circuit includes a DrMOS driver chip, a second channel inductor and a second output capacitor. The second PWM pin interface is electrically connected to the DrMOS driver chip. The SW switching signal output by the DrMOS driver chip passes through its corresponding second channel inductor and second output capacitor in sequence and is electrically connected to the integrated graphics power supply terminal of the CPU component.

[0056] Specifically, in this embodiment, the PWMA signal on pin 38 of the main power module UP1 is connected to the PWM signal line on pin 34 of the DrMOS driver chip at position UP20, providing a PWM control signal to the DrMOS driver chip. The DrMOS driver chip at position UP20 controls the upper and lower bridge MOS transistors inside it to switch. The SW switch signal is output from pins 10 to 19 of the driver chip, and after being filtered by inductor LP19 and output capacitor, the VCCGT voltage is finally output to provide integrated graphics power to the CPU.

[0057] The VCCSA power supply circuit has demonstrated significant benefits in practical applications. Firstly, the single-phase power supply design using a single DrMOS driver chip effectively meets the power requirements of the CPU integrated graphics section while optimizing circuit complexity and cost. This design not only reduces the number of required components but also simplifies circuit layout, lowering R&D and production costs. The switching operation of the DrMOS driver chip is precisely controlled via the second PWM pin interface of the main control power module, achieving efficient management of the VCCSA power supply circuit. This design not only improves power supply efficiency but also ensures stability and reliability through precise control signals. The SW switching signal output by the DrMOS driver chip passes sequentially through its corresponding second-channel inductor and second-output capacitor. This filtering design significantly reduces voltage ripple and noise, improving power quality. This is crucial for the stable operation of the CPU integrated graphics section, especially under high load and high-frequency operating conditions. Furthermore, this design also boasts high integration and operating efficiency. Through optimized circuit layout and component selection, the entire VCCSA power supply circuit is not only compact but also efficiently converts and transmits electrical energy, reducing energy consumption and improving overall system performance.

[0058] In practical applications, the VCCSA power supply circuit provides stable and efficient power support for the integrated graphics of next-generation high-power CPUs. For example, in high-performance computing, graphics processing, and data center applications, the CPU's integrated graphics often need to operate stably under high loads for extended periods. The VCCSA power supply circuit of this invention ensures that the integrated graphics receive high-quality power under various operating conditions, thereby improving the overall system performance and reliability. This design also facilitates system debugging and maintenance. By controlling the second PWM pin interface of the main power module, developers can easily test and debug the VCCSA power supply circuit, quickly locating and resolving problems. This flexibility allows the power supply circuit to adapt to different application scenarios and needs, giving it broad application prospects.

[0059] In addition, the VCCGT_CSA signal on pin 54 of the main control power module UP1 is connected to the IOUT signal on pin 38 of the DrMOS at position UP20 to detect the output current of this path; the TEMP signal on pin 50 of the main control power module UP1 is connected to the TOUT / FLT signal on pin 36 of the DrMOS through the VR_TEMP signal of resistor RP20 to detect the operating temperature of the corresponding DrMOS driver chip.

[0060] Please see Figure 6 Preferably, the VCCGT power supply circuit includes a DrMOS driver chip, a third channel inductor, and a third output capacitor. The third PWM pin interface is electrically connected to the DrMOS driver chip. The SW switching signal output by the DrMOS driver chip passes through its corresponding third channel inductor and third output capacitor in sequence and is electrically connected to the auxiliary power supply terminal of the CPU component.

[0061] Specifically, in this embodiment, the PWMB signal on pin 37 of the main control power module UP1 is connected to the PWM signal line on pin 34 of the DrMOS driver chip at position UP21, providing a PWM control signal to the DrMOS driver chip. The DrMOS driver chip at position UP21 controls the upper and lower bridge MOS transistors inside it to switch. The SW switch signal is output from pins 10 to 19 of the driver chip, and after being filtered by the LP20 inductor and the output capacitor, the VCCSA voltage is finally output to provide auxiliary power to the CPU.

[0062] The VCCGT power supply circuit has demonstrated significant benefits in practical applications. Firstly, the single-phase power supply design using a single DrMOS driver chip effectively meets the power requirements of the CPU auxiliary section while optimizing circuit complexity and cost. This design not only reduces the number of required components but also simplifies circuit layout, lowering R&D and production costs. The switching operation of the DrMOS driver chip is precisely controlled via the third PWM pin interface of the main control power module, achieving efficient management of the VCCGT power supply circuit. This design not only improves power supply efficiency but also ensures power supply stability and reliability through precise control signals. The SW switching signal output by the DrMOS driver chip passes sequentially through its corresponding third-channel inductor and third output capacitor. This filtering design significantly reduces voltage ripple and noise, improving power quality. This is crucial for the stable operation of the CPU auxiliary section, especially under high load and high-frequency operating conditions. Furthermore, it boasts high integration and operating efficiency. Through optimized circuit layout and component selection, the entire VCCGT power supply circuit is not only compact but also efficiently converts and transmits electrical energy, reducing energy consumption and improving overall system performance.

[0063] In practical applications, the VCCGT power supply circuit provides stable and efficient power support for the auxiliary components of next-generation high-power CPUs. For example, in high-performance computing, graphics processing, and data center applications, the CPU's auxiliary components often need to operate stably under high loads for extended periods. The VCCGT power supply circuit ensures that the auxiliary components receive high-quality power under various operating conditions, thereby improving the overall system performance and reliability. This design also facilitates system debugging and maintenance. By controlling the third PWM pin interface of the main power module, developers can easily test and debug the VCCGT power supply circuit, quickly locating and resolving problems. This flexibility allows the power supply circuit of this invention to adapt to different application scenarios and needs, giving it broad application prospects.

[0064] In addition, the VCCSA_CSB signal of pin 53 of the main control power module UP1 is connected to the IOUT signal of pin 38 of DrMOS at position UP21 to detect the output current of this path; the TEMP signal of pin 50 of the main control power module UP1 is connected to the TOUT / FLT signal of pin 36 of DrMOS through the VR_TEMP signal of resistor RP20 to detect the operating temperature of the corresponding DrMOS driver chip.

[0065] In summary, with the increase in the number of CPU cores and the rise in operating frequency, the power supply requirements for core voltage (VCORE), integrated graphics voltage (VCCGT), and auxiliary voltage (VCCSA) also increase significantly. Traditional power supply solutions have limitations in current carrying capacity, dynamic response speed, and power management flexibility, making it difficult to meet the high-performance requirements of next-generation CPUs. Therefore, this invention proposes a high-performance motherboard CPU power supply circuit, which significantly improves the performance and reliability of the power supply system by optimizing the circuit architecture and component selection. It aims to address the higher requirements of next-generation high-power CPUs on the power supply system.

[0066] The high-performance motherboard CPU power supply circuit utilizes a main control power chip where each PWM signal simultaneously controls two drive circuits. This achieves a multiplier effect on the number of output phases without altering the internal circuitry of the power chip, enhancing the circuit's current carrying capacity and meeting the operational requirements of today's high-power CPUs. This solution boasts high circuit integration, high efficiency, and superior performance, giving it a significant competitive advantage in the market. Furthermore, its high integration results in lower BOM component costs and R&D expenses. Verified to be highly efficient and high-performing, the circuit allows for flexible adjustments to the number of output phases and channels based on the platform's actual power consumption requirements, offering strong compatibility and making it the preferred power supply solution for current platforms.

[0067] The second embodiment of this utility model discloses an electronic device, which includes a device body and a high-performance motherboard CPU power supply circuit as described in any of the above, wherein the high-performance motherboard CPU power supply circuit is configured inside the device body.

[0068] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A high-performance motherboard CPU power supply circuit, characterized in that, include: The system comprises a CPU component, a main control power module, a VCORE power supply circuit, a VCCSA power supply circuit, and a VCCGT power supply circuit. The output terminal of the CPU component is electrically connected to the input terminal of the main control power module. The first output terminal of the main control power module is electrically connected to the input terminal of the VCORE power supply circuit. The second output terminal of the main control power module is electrically connected to the input terminal of the VCCSA power supply circuit. The third output terminal of the main control power module is electrically connected to the input terminal of the VCCGT power supply circuit. The output terminals of the VCORE power supply circuit, the VCCSA power supply circuit, and the VCCGT power supply circuit are respectively electrically connected to the core power supply terminal, the integrated graphics power supply terminal, and the auxiliary power supply terminal of the CPU component. The first output terminal of the main control power module includes multiple first PWM pin interfaces, each of which has two driver chips. The second and third output terminals of the main control power module each include a second PWM pin interface and a third PWM pin interface. Both the second and third PWM pin interfaces are connected to only one driver chip to provide power to the CPU components.

2. The high-performance motherboard CPU power supply circuit according to claim 1, characterized in that, The CPU component includes a CPU module, a VCORE power supply module, a VCCSA power supply module, and a VCCGT power supply module. The SVID interface of the CPU module is electrically connected to the SVID interface of the main control power module. The output terminal of the VCORE power supply circuit is electrically connected to the input terminal of the VCORE power supply module. The output terminal of the VCCSA power supply circuit is electrically connected to the input terminal of the VCCSA power supply module. The output terminal of the VCCGT power supply circuit is electrically connected to the input terminal of the VCCGT power supply module. The VCORE power supply module provides core power to the CPU module, the VCCSA power supply module provides integrated graphics power to the CPU module, and the VCCGT power supply module provides auxiliary power to the CPU module.

3. The high-performance motherboard CPU power supply circuit according to claim 1, characterized in that, The chip model of the main control power module is MP29000-A.

4. The high-performance motherboard CPU power supply circuit according to claim 1, characterized in that, It also includes an enabling component, the output of which is electrically connected to the enabling terminal of the main control power module. When the motherboard power switch is not turned on, the first and second switching transistors of the enabling component are not conducting, and the third and fourth switching transistors of the enabling component are conducting, and the main control power module stops working. When the motherboard power switch is turned on, the first and second switching transistors of the enabling component are grounded, and the third and fourth switching transistors of the enabling component are not conducting, and the main control power module starts working.

5. The high-performance motherboard CPU power supply circuit according to claim 4, characterized in that, The first switch of the enabling component is an NPN transistor, the second switch of the enabling component is an NMOS transistor, the third switch of the enabling component is an N-channel MOSFET, and the fourth switch of the enabling component is an N-channel MOSFET.

6. The high-performance motherboard CPU power supply circuit according to claim 1, characterized in that, The VCORE power supply circuit includes 18 DrMOS driver chips, 18 first channel inductors and first output capacitors. The first output terminal of the main control power module includes 9 first PWM pin interfaces. Each of the PWM pin interfaces is connected to two DrMOS driver chips. The SW switching signal output by each DrMOS driver chip passes through its corresponding first channel inductor and first output capacitor in sequence and is electrically connected to the core power supply terminal of the CPU component.

7. The high-performance motherboard CPU power supply circuit according to claim 1, characterized in that, The VCCSA power supply circuit includes a DrMOS driver chip, a second channel inductor, and a second output capacitor. The second PWM pin interface is electrically connected to the DrMOS driver chip. The SW switching signal output by the DrMOS driver chip passes through its corresponding second channel inductor and second output capacitor in sequence and is electrically connected to the integrated graphics power supply terminal of the CPU component.

8. The high-performance motherboard CPU power supply circuit according to claim 1, characterized in that, The VCCGT power supply circuit includes a DrMOS driver chip, a third channel inductor, and a third output capacitor. The third PWM pin interface is electrically connected to the DrMOS driver chip. The SW switching signal output by the DrMOS driver chip passes through its corresponding third channel inductor and third output capacitor in sequence and is electrically connected to the auxiliary power supply terminal of the CPU component.

9. An electronic device, characterized in that, It includes the device body and the high-performance motherboard CPU power supply circuit as described in any one of claims 1 to 8, wherein the high-performance motherboard CPU power supply circuit is configured inside the device body.

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