A control system and apparatus for a computer power supply

Abstract

This application discloses a control system and apparatus for a computer power supply, including a power input module, a voltage conversion module, a first control module, and a second control module. The power input module provides operating power to the entire control system. The voltage conversion module converts the operating power into a first operating voltage and outputs it. The first control module controls the output of the first operating voltage from the voltage conversion module. The second control module receives a startup command from an external computer and outputs a startup voltage signal to the first control module. When the first control module receives the startup voltage signal, it starts the output of the first operating voltage. The second control module also controls the first operating voltage output by the voltage conversion module to perform voltage division and output at least one second operating voltage for the external computer to operate. This design effectively avoids using a single MCU to control the entire power supply, improving the stability and reliability of the power supply.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to a control system and device for a computer power supply. Background Technology

[0002] With the continuous advancement of technology, computers are constantly being optimized and iterated to meet the needs of daily work and some large-scale games. As the computing power and performance of computers continue to improve, a more stable power supply is needed to power the computer's motherboard, CPU, graphics card and other components.

[0003] To improve the energy efficiency and stability of computer power supplies, existing computer power supplies use an MCU solution to couple real-time control and system management onto the same processor. This means that a single MCU needs to simultaneously complete PFC voltage / current dual-loop, main power stage modulation, synchronous rectification, fan and temperature management, PG timing, etc., which can easily lead to congestion of interrupts and task scheduling, resulting in decreased stability and low reliability of the power supply.

[0004] Therefore, the above-mentioned problems urgently need to be solved by those in the field. Utility Model Content

[0005] To address the technical deficiencies mentioned in the background section, this application provides a control system and apparatus for a computer power supply, which effectively avoids using a single MCU to control the entire power supply, improves power supply stability, and enhances user experience through communication with an external computer.

[0006] The present invention adopts the following technical solution: Firstly, a control system for a computer power supply, comprising: The power input module is connected to an external power source and is used to provide operating power for the entire control system. A voltage conversion module is electrically connected to the power input module. The voltage conversion module is used to convert the working power supply into a first working voltage and output it. The first control module is electrically connected to the power input module and the voltage conversion module respectively. The first control module is used to control the output of the first working voltage of the voltage conversion module. The second control module is electrically connected to the first control module and the power input module respectively. The second control module is used to receive the start command from the external computer and output the start voltage signal to the first control module. When the first control module receives the start voltage signal, it starts the output of the first working voltage. The second control module is also used to control the first working voltage output by the voltage conversion module to divide the voltage and output at least one second working voltage for the external computer to work.

[0007] Optionally, the second control module is further configured to monitor in real time whether the first operating voltage and the at least one second operating voltage are over- or under-voltage. If so, the second control module adjusts the voltage value of the second operating voltage output in real time and outputs a voltage adjustment signal to the first control module so that the first control module adjusts the voltage value of the first operating voltage output by the voltage conversion module in real time.

[0008] Optionally, the second control module is electrically connected to an external computer and is also used to transmit the operating status information of the entire control system to the external computer.

[0009] Optionally, the second control module is also used to electrically connect with the external fan and the temperature management module, and to output a corresponding temperature signal based on the temperature of the entire control system monitored by the temperature management module, and to adjust the speed of the external fan in real time so as to cool down the entire control system.

[0010] Optionally, an external voltage input terminal is provided, which is electrically connected to an external mains power source to receive alternating current transmitted from the external mains power source. A power frequency rectifier and filter unit, wherein the input terminal of the power frequency rectifier and filter unit is electrically connected to the external power input terminal, and is used to convert the AC power supplied by the external voltage input terminal into a first DC power. The working voltage providing unit has its input terminal electrically connected to the power frequency rectification and filtering unit, and its output terminal electrically connected to the first control module and the second control module respectively. The working voltage providing unit is used to transmit the first DC power to the first control module and the second control module to provide real-time power to the first control module and the second control module.

[0011] Optionally, the voltage conversion module further includes: A bridgeless rectifier and filter unit is electrically connected to the external voltage input terminal. The bridgeless rectifier and filter unit is used to rectify and filter the AC power supplied by the external voltage input terminal and output a second DC power. A step-down unit is electrically connected to the bridgeless rectifier and filter unit. The step-down unit is used to step down the second DC power supplied by the bridgeless rectifier and filter unit to output a first operating voltage. A voltage divider unit is electrically connected to the step-down unit. The voltage divider unit is used to divide the first working voltage output by the step-down unit and output at least one second working voltage for use by an external computer.

[0012] Optionally, the voltage conversion module further includes a high-frequency rectification and filtering unit, which is used to filter the first working voltage output by the step-down unit and send the filtered first working voltage to the voltage divider unit.

[0013] Optionally, the second control module is also electrically connected to a start port, which is electrically connected to an external computer. When the external computer sends a start command, the start port receives the start command and sends it to the second control module.

[0014] Optionally, the first control module is further configured to monitor whether the working power supplied by the power input module is within a preset range; if so, it controls the output of the first working voltage from the voltage conversion module.

[0015] Secondly, embodiments of this application also provide a computer power supply control device, including the computer power supply control system described above; The control system of the computer power supply is etched onto the circuit board.

[0016] In summary, the beneficial effects of this utility model are as follows: The second control module receives external start commands and supplies operating power through the power input module, providing a first DC power to both the first and second control modules. It also outputs a first operating voltage. The voltage conversion module divides the first operating voltage to obtain at least one second operating voltage to power the various components of the external computing system, thus powering the computer and enabling it to operate. The second control module monitors the operating status of the first and second operating voltages in real time and can adjust their output values ​​accordingly. This avoids task interruptions and congestion caused by using a single MCU control module, thereby improving the stability and reliability of this invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the architecture of an embodiment of the present utility model; Figure 2 This is a circuit diagram of an embodiment of the present invention. Attached image description: 100. Power input module; 110. External voltage input terminal; 120. Power frequency rectification and filtering unit; 130. Working voltage supply unit; 200. Voltage conversion module; 210. Bridgeless rectifier and filter unit; 220. Step-down unit; 230. Voltage divider unit; 240. High-frequency rectifier and filter unit; 300. First control module; 400, Second control module; 410, Start port. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] like Figure 1 As shown, this application embodiment provides a computer power supply control system, including a power input module 100, a voltage conversion module 200, a first control module 300, and a second control module 400. The power input module 100 is electrically connected to an external mains power source and is used to provide operating power for the entire control system. The voltage conversion module 200 is electrically connected to the power input module 100 and is used to convert the operating power into a first operating voltage and output it. The first control module 300 is electrically connected to both the power input module 100 and the voltage conversion module 200. 0 is used to control the output of the first operating voltage of the voltage conversion module 200; the second control module 400 is electrically connected to the first control module 300 and the power input module 100 respectively. The second control module 400 is used to receive the start command from the external computer and output the start voltage signal to the first control module 300; wherein, when the first control module 300 receives the start voltage signal, it starts the output of the first operating voltage. The second control module 400 is also used to control the first operating voltage output by the voltage conversion module 200 to be divided and output at least one second operating voltage for the external computer to work.

[0022] In this embodiment, the power input module 100 is electrically connected to an external mains power source to receive an external 240V AC voltage. It can receive AC voltages within the range of 80~260V to provide operating power for the entire control system. The module then transmits this AC voltage to the voltage conversion module 200, which converts the 240V AC voltage into a first operating voltage and outputs it. This first operating voltage can be 12V. The voltage is then divided by the voltage divider unit 230 to obtain at least one second operating voltage. There can be two second operating voltages, 5V and 3.3V respectively. These 5V and 3.3V are then used to output and power an external computer.

[0023] Furthermore, the first control module 300 is electrically connected to the power input module and the voltage conversion module 200. It should be noted that the power input module 100 also outputs a 5VSB voltage to power the first control module 300 and the second control module 400, ensuring that both modules maintain continuous operation. Specifically, the first control module 300 controls the output of the first operating voltage of the voltage conversion module 200. The second control module 400 controls the output of several first operating voltages. When the second control module 400 receives a startup command from an external computer, it converts the command into a startup voltage signal and sends it to the first control module. The first control module then controls the output of the first operating voltage of the voltage conversion module 200, thereby providing the first operating voltage to the voltage divider unit 230. It should be noted that the first and second control modules communicate with each other in real time. By setting up real-time information interaction between the second control module 400 and the first control module 300, the instability of the entire control system caused by the traditional method of controlling the entire control system through a single MCU can be avoided. This also reduces task interruptions caused by the decrease in the processing power of a single MCU due to task scheduling, and improves the stability of the computer power supply.

[0024] Specifically, the first control module 300 can be a DSPIC33CK256MP505-I / PT MCU chip, and the second control module 400 can be a DSPIC33CK128MP506-I / PT MCU chip.

[0025] Optional, such as Figure 1 and Figure 2As shown, the second control module 400 is also used to monitor in real time whether the first working voltage and the at least one second working voltage are over- or under-voltage. If they are, the second working voltage output voltage value is adjusted in real time, and a voltage adjustment signal is output to the first control module 300 so that the first control module 300 adjusts the voltage value of the first working voltage output by the voltage conversion module 200 in real time.

[0026] In this embodiment, the second control module 400 is electrically connected to the voltage conversion module 200 and the first control module 300, enabling real-time detection of the first and second operating voltages output by the voltage conversion module 200. For example, the first operating voltage outputs 12V, and the second operating voltage outputs 5V and 3.3V. When the voltage values ​​of these three output voltages exceed ±2.5%, if the first operating voltage is not between 11.8V and 12.3V, the second control module 400 sends a voltage adjustment signal to the first control module 300. Upon receiving this voltage adjustment signal, the first control module 300 adjusts the first operating voltage output of the voltage conversion module 200 to maintain it between 11.8V and 12.3V. When the two voltages of the second operating voltage are not between 4.875V and 5.125V, or between 3.2175V and 3.3825V, the second control module 400 will control the voltage divider unit 230 to maintain the voltage between 3.2175V and 3.3825V. This method avoids situations where over- or under-voltage caused by circuit faults prevent the external computer from powering on or functioning properly, improves the stability of the power output, and avoids the need for a single MCU to monitor both the first and second operating voltages, thus improving the reliability of this embodiment.

[0027] Optional, such as Figure 2 As shown, the second control module 400 is electrically connected to an external computer and is also used to transmit the working status information of the entire control system to the external computer.

[0028] In this embodiment of the application, the second control module 400 collects status signals such as the first working voltage, the second working voltage, and temperature signals in real time and transmits them to an external computer, so that users can easily observe the working status of the computer power supply in real time.

[0029] Optional, such as Figure 2 As shown, the second control module 400 is also used to electrically connect with the external fan (FAN) and the temperature management module, and to output a corresponding temperature signal according to the temperature of the entire control system monitored by the temperature management module, and to adjust the speed of the external fan in real time so as to cool down the entire control system.

[0030] In this embodiment, the second control module 400 is electrically connected to the external fan and the temperature management module. The temperature management module can be a thermistor, thermometer, etc., preferably an NTC thermistor. The thermistor acquires the temperature of the computer power supply in real time. Since the thermistor will generate different resistance values ​​according to temperature changes, the voltage is converted into a temperature signal and sent to the second control module 400. The second control module 400 outputs a PWM signal to the external fan according to a preset algorithm. The external fan adjusts its speed according to the PWM signal. When the temperature of the computer power supply is relatively high, the fan speed will increase, thereby cooling the entire computer power supply.

[0031] Furthermore, such as Figure 1 As shown, the power input module 100 includes an external voltage input terminal 110, a power frequency rectification and filtering unit 120, and a working voltage providing unit 130. The external voltage input terminal 110 is electrically connected to an external mains power supply and is used to receive AC power supplied by the external mains power supply. The input terminal of the power frequency rectification and filtering unit 120 is electrically connected to the external power input terminal and is used to convert the AC power supplied by the external voltage input terminal 110 into a first DC power. The working voltage providing unit 130 has its input terminal electrically connected to the power frequency rectification and filtering unit 120, and its output terminal is electrically connected to the first control module 300 and the second control module 400, respectively. The working voltage providing unit 130 is used to supply the first DC power to the first control module 300 and the second control module 400 to provide real-time power to the first control module 300 and the second control module 400.

[0032] In this embodiment, the external voltage input terminal 110 is connected to an external mains power supply to obtain a 240V AC voltage. This voltage is then processed by the power frequency rectification and filtering unit 120 to become a first DC voltage. The operating voltage supply unit 130 receives this first DC voltage and then transmits it to the first control module 300 and the second control module 400 to provide real-time power to these two control modules. This design ensures the stable and continuous operation of the first control module 300 and the second control module 400, thereby enhancing the stability and reliability of the entire computer power control system. It also simplifies the power supply structure and reduces production costs.

[0033] Furthermore, such as Figure 1As shown, the voltage conversion module 200 also includes a bridgeless rectifier and filter unit 210, a step-down unit 220, and a voltage divider unit 230. The bridgeless rectifier and filter unit converts and filters the AC power supplied from the external voltage input terminal 110 to output a second DC power. This second DC power is supplied to the step-down unit 220, which receives the second DC power output from the bridgeless rectifier and filter unit 210 and steps it down to a first operating voltage. This first operating voltage has an appropriate voltage level to meet the needs of the computer power supply system, specifically, it can be a 12V DC voltage. Subsequently, the voltage divider unit 230 receives the first operating voltage output from the step-down unit 220 and divides it into at least one second operating voltage as needed, preferably two second operating voltages, namely 5V and 3.3V. This provides a stable power supply to the various components of the computer, ensuring the normal operation of the computer.

[0034] Optional, such as Figure 1 As shown, the voltage conversion module 200 further includes a high-frequency rectification filter. The high-frequency rectification filter unit 240 is used to filter the first working voltage output by the step-down unit 220 and send the filtered first working voltage to the voltage divider unit 230.

[0035] In this embodiment, the high-frequency rectification and filtering unit 240 effectively reduces ripple and noise in the first operating voltage output by the buck unit 220, thereby improving power quality. The high-frequency rectification and filtering unit 240 performs fine filtering on the first operating voltage output by the buck unit 220, ensuring that the first operating voltage supplied to the voltage divider unit 230 is smooth and stable. The voltage divider unit 230 then divides the voltage to produce the required second operating voltage, thus providing a cleaner and more stable power supply to the various components of the computer.

[0036] Optional, such as Figure 1 As shown, the second control module 400 is also electrically connected to a start port 410, which is electrically connected to an external computer. When the external computer sends a start command, the start port 410 receives the start command and sends it to the second control module 400.

[0037] In this embodiment, the second control module 400 establishes a connection with an external computer through the startup port 410, enabling efficient transmission of startup commands. When the external computer needs to power on, it sends a startup command to the startup port 410, which quickly receives and forwards it to the second control module 400. Upon receiving the startup command, the second control module 400 immediately starts a preset startup program and sends a startup voltage signal to the first control module 300. The first control module 300 then controls the voltage conversion module 200 to start outputting the first operating voltage. Through this method, the startup time of the computer power supply is reduced, greatly improving the user's boot-up experience.

[0038] In one possible embodiment, to further enhance the stability and reliability of the computer power supply, the second control module 400 in this application embodiment also has a fault self-diagnosis function. For example, during power supply operation, the second control module 400 continuously monitors the operating status of each module. Once an abnormality is detected, such as voltage fluctuations or overheating, a protection mechanism is immediately activated to cut off the power output and prevent the fault from escalating and burning out the power supply. Simultaneously, the second control module 400 also records the operating status information and sends it to an external computer so that users or maintenance personnel can promptly understand and handle the fault.

[0039] Optionally, the first control module 300 is also used to monitor whether the working power supplied by the power input module 100 is within a preset range. If so, it controls the output of the first working voltage of the voltage conversion module 200.

[0040] In this embodiment, the first control module 300 can detect the voltage value of the working power supply delivered by the power input module 100 in real time. For example, the voltage value of the working power supply can be 240V AC voltage. When the voltage value of the working power supply is within a preset range, for example, between 220V and 260V, the first control module 300 will control the voltage conversion module 200 to output the first working voltage normally. If the voltage value of the working power supply exceeds the preset range, for example, below 220V or above 260V, the first control module 300 will cut off the power output of the voltage conversion module 200 to protect the entire control system from damage. Through this design, the computer power control system can be stably operated under various voltage environments, improving the system's adaptability and reliability.

[0041] The second aspect of this application discloses a control device for a computer power supply, including a control system for the computer power supply as described above and a circuit board, wherein the control system for the computer power supply is etched onto the circuit board. By employing this control device (not shown in the figures), precise control of the computer power supply can be achieved, improving the stability and reliability of the power supply, avoiding the traditional method of control via a single MCU, and reducing the coupling of the computer power supply. Simultaneously, this control device, through circuit connections on the circuit board, realizes signal transmission and power supply between various modules, ensuring the normal operation of the computer power supply.

[0042] In one embodiment, the control device can also be installed inside a computer and connected to the computer's power system. When the computer needs to start, the external computer sends a start command to the start port of the control device. The start port receives and forwards the command to the second control module. Upon receiving the start command, the second control module immediately starts a preset start program and sends a start voltage signal to the first control module. The first control module then controls the voltage conversion module to start outputting a first operating voltage. This first operating voltage is divided by a voltage divider unit to obtain two second operating voltages for the external computer to operate.

[0043] In one possible embodiment, the control device also has a fault self-diagnosis function. During power supply operation, the second control module continuously monitors the operating status of each module. Once an abnormality is detected, such as voltage fluctuations or overheating, a protection mechanism is immediately activated to cut off the power output and prevent the fault from escalating and burning out the power supply. Simultaneously, the second control module records the operating status information and sends it to an external computer so that users or maintenance personnel can promptly understand and handle the fault.

[0044] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control system for a computer power supply, characterized in that, include: A power input module (100) is connected to an external power source and is used to provide operating power to the entire control system. A voltage conversion module (200) is electrically connected to the power input module (100), and the voltage conversion module (200) is used to convert the working power supply into a first working voltage and output it; The first control module (300) is electrically connected to the power input module (100) and the voltage conversion module (200) respectively. The first control module (300) is used to control the output of the first working voltage of the voltage conversion module (200). The second control module (400) is electrically connected to the first control module (300) and the power input module (100) respectively. The second control module (400) is used to receive the start command from the external computer and output the start voltage signal to the first control module (300). When the first control module (300) receives the start voltage signal, it starts the output of the first working voltage. The second control module (400) is also used to control the first working voltage output by the voltage conversion module (200) to be divided and output at least one second working voltage for the external computer to work.

2. The computer power supply control system as described in claim 1, characterized in that, The second control module (400) is also used to monitor in real time whether the first working voltage and the at least one second working voltage are over- or under-voltage. If they are, the second working voltage output voltage value is adjusted in real time, and a voltage adjustment signal is output to the first control module (300) so that the first control module (300) adjusts the voltage value of the first working voltage output by the voltage conversion module (200) in real time.

3. The computer power supply control system as described in claim 1 or 2, characterized in that, The second control module (400) is electrically connected to an external computer and is also used to transmit the working status information of the entire control system to the external computer.

4. The computer power supply control system as described in claim 3, characterized in that, The second control module (400) is also used to electrically connect with the external fan and the temperature management module, and to output a corresponding temperature signal according to the temperature of the entire control system monitored by the temperature management module, and to adjust the speed of the external fan in real time so as to cool down the entire control system.

5. The computer power supply control system as described in claim 1, characterized in that, The power input module (100) includes: An external voltage input terminal (110) is electrically connected to an external power source and is used to receive alternating current transmitted from the external power source. A power frequency rectifier and filter unit (120) is provided, the input terminal of which is electrically connected to the external power input terminal, for converting the AC power supplied by the external voltage input terminal (110) into a first DC power. The working voltage providing unit (130) has its input terminal electrically connected to the power frequency rectification and filtering unit (120), and its output terminal electrically connected to the first control module (300) and the second control module (400) respectively. The working voltage providing unit (130) is used to transmit the first DC power to the first control module (300) and the second control module (400) to provide real-time power to the first control module (300) and the second control module (400).

6. The computer power supply control system as described in claim 5, characterized in that, The voltage conversion module (200) also includes: A bridgeless rectifier filter unit (210) is electrically connected to the external voltage input terminal (110). The bridgeless rectifier filter unit (210) is used to rectify and filter the AC power supplied by the external voltage input terminal (110) and output a second DC power. A step-down unit (220) is electrically connected to the bridgeless rectifier filter unit (210). The step-down unit (220) is used to step down the second DC power supplied by the bridgeless rectifier filter unit (210) to output a first working voltage. Voltage divider unit (230), which is electrically connected to the step-down unit (220), is used to divide the first working voltage output by the step-down unit (220) and output at least one second working voltage for use by an external computer.

7. The computer power supply control system as described in claim 6, characterized in that, The voltage conversion module (200) further includes a high-frequency rectification and filtering unit (240), which is used to filter the first working voltage output by the step-down unit (220) and send the filtered first working voltage to the voltage divider unit (230).

8. The computer power supply control system as described in claim 1, characterized in that, The second control module (400) is also electrically connected to a start port (410), which is electrically connected to an external computer. When the external computer sends a start command, the start port (410) receives the start command and sends it to the second control module (400).

9. The computer power supply control system as described in claim 1, characterized in that, The first control module (300) is also used to monitor whether the working power supplied by the power input module (100) is within a preset range. If so, it controls the output of the first working voltage of the voltage conversion module (200).

10. A control device for a computer power supply, characterized in that, Includes a computer power supply control system as described in any one of claims 1-9; The control system of the computer power supply is etched onto the circuit board.

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