Multi-path output voltage power supply module and voltage regulation method thereof

Abstract

The invention discloses a multi-path output voltage power supply module and a voltage regulation method thereof, at least two mutually independent voltage conversion circuits are arranged, each circuit converts a direct current voltage into a specific output voltage according to a specific formula, the independent design enables each circuit to flexibly adjust output according to self load requirements, and the voltage regulation efficiency is improved. Diversified load characteristic requirements are met; the intelligent feedback regulation unit collects output voltage and current data of each path in real time and transmits the data to the central control unit, the central control unit calculates voltage deviation and generates regulation signals to be fed back to each path of circuit, and the feedback regulation mechanism can sense output voltage change caused by load change in time, quickly regulate parameters and ensure that the output voltage is stable and accurate. Meanwhile, the central control unit respectively adjusts each path and only adjusts a circuit with deviation, so that other paths are prevented from being interfered, mutual influence among outputs of each path is reduced, stable output of each path according to a self target value is ensured, and the defect of mutual influence of multi-path output is effectively overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power module, in particular to a power module with multiple output voltages and a voltage regulating method thereof. BACKGROUND

[0002] With the increasing complexity and diversification of modern electronic devices, the requirements for power supply have become increasingly high. With the development of power electronics technology, some high-integration multi-output power supply solutions have emerged, but these solutions have deficiencies in voltage regulation flexibility and precision. For example, some multi-output power supplies use fixed voltage conversion ratios, which cannot adjust the output voltage of each channel in real time according to the actual load demand. When the load changes, the output voltage may deviate greatly, affecting the normal operation of the electronic device. In addition, there is a mutual influence problem between the outputs of the multi-output power supply. When the load of a certain channel changes suddenly, it may interfere with the output voltage of other channels, causing voltage fluctuations or instability. SUMMARY

[0003] Therefore, the present application provides a power module with multiple output voltages and a voltage regulating method thereof, which can effectively solve the problems of being unable to adjust the output voltage of each channel in real time according to the actual load demand and the mutual influence between the outputs.

[0004] The technical solution of the present application is as follows:

[0005] A power module with multiple output voltages comprises:

[0006] An input rectification and filtering unit is used to receive an external AC power supply and convert it into a DC voltage.

[0007] A multi-independent control type voltage conversion unit is provided with at least two independent voltage conversion circuits. Each voltage conversion circuit converts the DC voltage into a specific output voltage according to a voltage conversion formula.

[0008] An intelligent feedback regulation unit is connected to the output terminals of each channel of the multi-independent control type voltage conversion unit, used to collect the output voltage and current of each channel in real time, and transmit the collected data to a central control unit. The central control unit calculates the voltage deviation based on the preset target output voltage of each channel and the actual output voltage collected, generates a regulation signal according to the voltage deviation, and feeds it back to each voltage conversion circuit to adjust the working parameters of each voltage conversion circuit.

[0009] The voltage conversion formula is as follows:

[0010] ;

[0011] wherein, is an output voltage, is a direct current voltage, is a voltage conversion coefficient of the nth voltage conversion circuit, and the value range is , is a working time of the nth voltage conversion circuit, is a time constant of the nth voltage conversion circuit, is an output current of the nth voltage conversion circuit, is an equivalent output resistance of the nth voltage conversion circuit.

[0012] As a further optional solution of the power module of the multiple output voltages, the input rectification and filtering unit comprises a rectification bridge and a filtering capacitor, the rectification bridge is used for converting an alternating current input power into a pulsating direct current, and the filtering capacitor is used for smoothing filtering the pulsating direct current to obtain a direct current voltage.

[0013] As a further optional solution of the power module of the multiple output voltages, the central control unit generates an adjustment signal according to the voltage deviation, and specifically comprises:

[0014] The central control unit calculates a proportional term, an integral term and a differential term of each voltage deviation according to the voltage deviation;

[0015] The proportional term, the integral term and the differential term of each voltage are added to obtain an adjustment amount of each voltage conversion circuit;

[0016] The corresponding adjustment signal is generated according to the adjustment amount of each voltage conversion circuit.

[0017] As a further optional solution of the power module of the multiple output voltages, the power module further comprises a state monitoring and protection unit, which is used for monitoring parameters of input voltage, input current, each output voltage, each output current and key elements inside the module in real time, and when any parameter is monitored to be out of a preset safety range, a protection mechanism is triggered immediately to cut off the corresponding circuit or adjust the working state.

[0018] As a further optional solution of the power module of the multiple output voltages, the state monitoring and protection unit comprises a voltage sensor, a current sensor, a temperature sensor and a comparator circuit, the voltage sensor is used for monitoring input and output voltages in real time, the current sensor is used for monitoring input and output currents in real time, the temperature sensor is used for monitoring the temperature of the key elements inside the module, and the comparator circuit compares the monitored parameters with the preset safety range, and when the parameters are out of the range, a protection signal is output to trigger the corresponding protection action.

[0019] As a further optional solution of the power module of the multi-output voltage, the power module further comprises a communication interface unit, and the central control unit is in communication connection with an external device through the communication interface unit.

[0020] A voltage regulation method of a power module of a multi-output voltage, specifically comprising:

[0021] Receiving an external AC power supply and converting it into a DC voltage;

[0022] Each voltage conversion circuit converts the DC voltage into a specific output voltage according to a voltage conversion formula;

[0023] Real-time collection of each output voltage and output current, and transmission of the collected data to a central control unit, the central control unit calculating a voltage deviation according to a preset target output voltage of each channel and the collected actual output voltage, generating a regulation signal according to the voltage deviation, and feeding back to each voltage conversion circuit to adjust the working parameters of each voltage conversion circuit;

[0024] The voltage conversion formula is specifically:

[0025] ;

[0026] In the formula, is the output voltage, is the DC voltage, is the voltage conversion coefficient of the nth voltage conversion circuit, and its value range is , is the working time of the nth voltage conversion circuit, is the time constant of the nth voltage conversion circuit, is the output current of the nth voltage conversion circuit, is the equivalent output resistance of the nth voltage conversion circuit.

[0027] A computing device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the voltage regulation method of the power module of the multi-output voltage when executing the computer program.

[0028] A computer readable storage medium, the storage medium storing a computer program, the computer program being executed by a processor to implement the steps of the voltage regulation method of the power module of the multi-output voltage.

[0029] The beneficial effects of the present application are: provided are at least two mutually independent voltage conversion circuits, each voltage conversion circuit converts a direct current voltage into a specific output voltage according to a specific voltage conversion formula, the independent design enables each voltage conversion circuit to work independently and convert voltage according to the load demand, and the voltage conversion circuits of different paths can flexibly adjust the output voltage according to the load characteristics connected by themselves, such as the voltage requirement and current demand of the load, so as to meet the diversified demand of the actual load; the intelligent feedback adjustment unit collects the output voltage and output current of each path in real time, and transmits the data to the central control unit, the central control unit calculates the voltage deviation according to the preset target output voltage of each path and the collected actual output voltage, and generates an adjustment signal according to the voltage deviation and feeds it back to each voltage conversion circuit, the feedback adjustment mechanism can timely sense the output voltage change caused by the load change, quickly generate an adjustment signal, and enable each voltage conversion circuit to timely adjust the working parameters, so as to realize real-time adjustment of the output voltage of each path according to the actual load demand, and ensure the stability and accuracy of the output voltage; the central control unit calculates the voltage deviation and generates the adjustment signal for each path, and the feedback adjustment is targeted, which only adjusts the voltage conversion circuit with voltage deviation and does not interfere with other paths, the accurate feedback adjustment method further reduces the mutual influence between the outputs of each path, ensures that each output voltage can be stably output according to the target value, and effectively solves the defect that there is mutual influence between the outputs of each path. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 It is a composition schematic diagram of a multi-output voltage power supply module of the present application.

[0032] Figure 2 It is a composition schematic diagram of an input rectifier filter unit.

[0033] Figure 3 It is a composition schematic diagram of a state monitoring and protection unit.

[0034] Figure 4 It is a flow chart of a voltage adjustment method of a multi-output voltage power supply module of the present application.

[0035] Figure 5 It is a composition schematic diagram of a computing device of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0037] Reference Figures 1 to 5 A power module for multiple output voltages includes an input rectification and filtering unit, a multiple independent control type voltage conversion unit, an intelligent feedback regulation unit, a state monitoring and protection unit, and a communication interface unit, wherein:

[0038] The input rectification and filtering unit is configured to receive an external AC power supply and convert it into a DC voltage. In some embodiments, the input rectification and filtering unit includes a rectifier bridge and a filtering capacitor. The rectifier bridge is configured to convert the AC input power supply into pulsating DC, and the filtering capacitor is configured to perform smoothing filtering on the pulsating DC to obtain a DC voltage.

[0039] Specifically, the rectifier bridge is used to convert the AC input power supply into pulsating DC. This step is the basis for power conversion, which converts the AC power with varying direction and size over time into pulsating DC with constant direction but still fluctuating, providing a prerequisite for further processing.

[0040] The filtering capacitor performs smoothing filtering on the pulsating DC output by the rectifier bridge. The pulsating DC contains a large number of ripple components, which can cause the electronic device to work unstably, produce noise, interference, and other problems. The filtering capacitor utilizes its charge and discharge characteristics to effectively filter out the ripple in the pulsating DC, making the output DC voltage more stable. Stable DC voltage is crucial for the normal operation of the subsequent multiple independent control type voltage conversion unit, ensuring that each voltage conversion circuit can operate under relatively ideal power supply conditions, improving the reliability and stability of the entire power module.

[0041] The multiple independent control type voltage conversion unit is provided with at least two independent voltage conversion circuits. Each voltage conversion circuit converts the DC voltage into a specific output voltage according to a voltage conversion formula. In some embodiments, the voltage conversion formula is as follows:

[0042]

[0043] In the formula, Vout is the output voltage, V is the DC voltage, and k n is the voltage conversion coefficient of the nth voltage conversion circuit, which is in the range of 0 < k n < 1. k n is related to the topology and element parameters of the circuit.​​​​ is the working time of the nth voltage conversion circuit, is the time constant of the nth voltage conversion circuit, determined by energy storage elements such as capacitance and inductance in the circuit, is the output current of the nth voltage conversion circuit, is the equivalent output resistance of the nth voltage conversion circuit.

[0044] Specifically, each voltage conversion circuit converts the direct current voltage into a specific output voltage according to a specific voltage conversion formula. Parameters in the formula, such as voltage conversion coefficient , working time , time constant , etc. can be adjusted according to actual needs. By changing these parameters, the size of each output voltage can be accurately controlled to adapt to the voltage requirements of different loads under different working conditions, greatly improving the flexibility and adaptability of the power module;

[0045] The voltage conversion formula adopted takes into account the influence of various factors on the output voltage. The voltage conversion coefficient determines the basic voltage conversion ratio, the working time and the time constant reflect the dynamic characteristics of the circuit, the output current and the equivalent output resistance consider the influence of the load on the voltage. This comprehensive formula design makes the voltage conversion process more accurate, allowing the output voltage to be accurately calculated according to the actual situation, reducing errors in the voltage conversion process;

[0046] Since the output current is included in the formula, when the load changes and the output current changes, the output voltage can be adjusted in time according to the formula. For example, when a load suddenly increases and the output current increases, the voltage conversion parameters can be adjusted accordingly through formula calculation to keep the output voltage within a stable range, ensuring that each load can obtain stable voltage supply under different working conditions.

[0047] It should be noted that the determination method of the circuit voltage conversion coefficient , specifically includes:

[0048] Step 1: Determine the topology structure type used by the nth voltage conversion circuit, which includes but is not limited to Buck circuit, Boost circuit, Buck-Boost circuit, flyback circuit, forward circuit;

[0049] According to the selected topology structure, establish its theoretical voltage conversion relationship model; for Buck circuit, the theoretical voltage conversion relationship is (In ideal conditions, ignoring losses, D is the duty cycle, is the input voltage, is the output voltage), at this time the preliminary associated voltage conversion coefficient The relationship with the duty cycle D is In an ideal Buck circuit, there may be a corresponding correlation with the duty cycle D value; for a Boost circuit, the theoretical voltage conversion relationship is (Ideal lossless situation), also preliminarily clarified The potential relationship with key parameters (such as duty cycle D) under this topology; similar theoretical model establishment and parameter correlation analysis are also performed for other topologies;

[0050] Step 2: Accurately measure the parameter values ​​of each key component in the n-th voltage conversion circuit; the key components include but are not limited to the on-resistance of the switch tube (such as MOSFET, IGBT) , the forward voltage drop of the diode , the equivalent series resistance of the inductor , the equivalent series resistance of the capacitor and the turns ratio of the transformer (If there is a transformer in the circuit);

[0051] Substitute the measured component parameter values ​​into the theoretical voltage conversion relationship model established in step 1 and modify the model to take into account the losses and effects of actual component parameters; for example, in the Buck circuit, consider the on-resistance of the switch tube. and the inductor's equivalent series resistance After that, the actual output voltage It will be lower than the ideal output voltage. In this case, it is necessary to re-derive the voltage conversion relationship including these loss parameters to more accurately determine Relationship with various parameters;

[0052] Step 3. Use circuit simulation software, such as PSpice, LTspice, or MATLAB / Simulink, to build a detailed simulation model of the n-way voltage conversion circuit. In the simulation model, accurately set the parameter values ​​of each component measured in Step 2.

[0053] Set input voltage Set different load conditions (simulated by changing the load resistance value) for multiple typical values ​​within the expected input voltage range of the power module's actual operation.

[0054] During the simulation, the output voltage Reach the preset target output voltage For optimization target, by adjusting the key control parameters in the circuit (such as duty cycle D, switching frequency f, etc.), run multiple simulations, record the corresponding voltage conversion coefficient (according to the input and output voltage values obtained by simulation, according to the calculation , at the same time, combined with the more accurate model established in the previous step, consider the loss factor for correction);

[0055] The results of multiple simulations are analyzed, and the value range of the voltage conversion coefficient That can make the output voltage stable near the target output voltage And the fluctuation is the smallest in the input voltage range and load change range is selected; Further fine simulation optimization is carried out in the range to determine the specific value of the final voltage conversion coefficient And ensure .

[0056] In some embodiments, the central control unit generates an adjustment signal according to the voltage deviation, specifically comprising:

[0057] The central control unit calculates the proportional term, integral term and differential term of each voltage deviation according to the voltage deviation;

[0058] Add the proportional term, integral term and differential term of each road to get the adjustment amount of each voltage conversion circuit;

[0059] Generate the corresponding adjustment signal according to the adjustment amount of each voltage conversion circuit.

[0060] Specifically, the voltage acquisition module in the intelligent feedback adjustment unit acquires the actual voltage value of each output of the multi-channel independent control type voltage conversion unit In real time, and transmits it to the central control unit, and the central control unit compares the acquired actual output voltage value of each road With the preset target output voltage value of each road , calculate the voltage deviation of each road ;

[0061] The central control unit calculates the proportional term , integral term And the differential term Of each voltage deviation, wherein , , Are the preset proportional coefficient, integral coefficient and differential coefficient;

[0062] Add the proportional term , integral term And the differential term Of each road to get the adjustment amount of each road ​;

[0063] The central control unit generates a corresponding adjustment signal according to the adjustment amount of each channel ; when the adjustment signal is a pulse width modulation (PWM) signal, the duty cycle of the PWM signal is adjusted according to the size of the adjustment amount ; , the duty cycle and the adjustment amount satisfy a preset linear or nonlinear relationship ; when the adjustment signal is a frequency modulation signal, the frequency of the signal is adjusted according to the adjustment amount ; , the frequency and the adjustment amount satisfy a preset relationship ;

[0064] By calculating the proportional term, integral term and differential term of the voltage deviation of each channel respectively, the current value, historical accumulation and change trend of the voltage deviation can be considered comprehensively. The proportional term quickly responds to the current deviation, the integral term eliminates the static error, and the differential term predicts the deviation change. The combination of the three makes the calculation of the adjustment amount more accurate, thereby effectively improving the adjustment accuracy of the output voltage of the voltage conversion circuit of each channel and ensuring that the output voltage is more stable and close to the preset target value.

[0065] The intelligent feedback adjustment unit is connected to the output end of each channel of the multi-channel independent control type voltage conversion unit, and is used to collect the output voltage and output current of each channel in real time, and transmit the collected data to the central control unit. The central control unit calculates the voltage deviation according to the preset target output voltage of each channel and the actual output voltage collected, generates an adjustment signal according to the voltage deviation, and feeds back to each voltage conversion circuit to adjust the working parameters of each voltage conversion circuit.

[0066] Specifically, the intelligent feedback adjustment unit is connected to each output end and can collect the output voltage and output current data of each channel in real time. This real-time nature ensures that the central control unit can obtain the latest running information in time, providing accurate basis for subsequent accurate adjustment and avoiding the problem of untimely or inaccurate adjustment caused by data lag; the central control unit accurately calculates the voltage deviation according to the preset target output voltage of each channel and the actual output voltage collected. This step is the key basis of the entire adjustment process, and accurate deviation calculation makes the subsequent adjustment action more targeted and can more effectively adjust the output voltage to the target value.

[0067] The state monitoring and protection unit is used for real-time monitoring of input voltage, input current, each output voltage, each output current of the power module and parameters of key elements inside the module. When any parameter is monitored to be out of the preset safety range, the protection mechanism is triggered immediately to cut off the corresponding circuit or adjust the working state. In some embodiments, the state monitoring and protection unit comprises a voltage sensor, a current sensor, a temperature sensor and a comparator circuit. The voltage sensor is used for real-time monitoring of input and output voltage. The current sensor is used for real-time monitoring of input and output current. The temperature sensor is used for monitoring the temperature of key elements inside the module. The comparator circuit compares the monitored parameters with the preset safety range. When the parameters are out of the range, a protection signal is output to trigger the corresponding protection action.

[0068] Specifically, the input voltage, input current, each output voltage, each output current of the power module and the parameters of key elements inside the module can be monitored in real time. Such comprehensive monitoring covers the key parameters of the power module operation, ensuring accurate grasp of the overall operation state of the module and providing the possibility of timely discovery of potential problems.

[0069] When any parameter is monitored to be out of the preset safety range, the protection mechanism is triggered immediately to cut off the corresponding circuit or adjust the working state. The fast response can effectively avoid further expansion of the fault, reduce the damage to the power module and the connected load equipment caused by abnormal parameters, and improve the safety and reliability of the system.

[0070] The state monitoring and protection unit contains various sensors and comparator circuits. The voltage sensor and the current sensor respectively monitor the input and output voltage and current in real time, providing accurate data for accurate judgment of the electrical performance of the power module. The temperature sensor monitors the temperature of key elements inside the module, which helps to discover the fault caused by overheating in time. The comparator circuit compares the monitored parameters with the preset safety range, providing accurate judgment basis for triggering the protection action.

[0071] The communication interface unit, the central control unit is communicated with external equipment according to the communication interface unit.

[0072] Specifically, the central control unit can communicate with external equipment through the communication interface unit, so that the user can monitor and manage the power module from a position away from the power module. For example, in a large data center or a distributed power supply system, the operation and maintenance personnel can use the upper computer software to real-time view the parameters of the power module, such as input and output voltage, current, temperature, etc. in the control room, discover potential problems in time and take corresponding treatment, greatly improving the management efficiency and convenience.

[0073] The external device can send instructions to the central control unit through the communication interface unit to modify the preset parameters of the power module, such as the target output voltage of each channel, the protection threshold, etc. This flexible parameter configuration function enables the power module to adapt to different application scenarios and load requirements without the need to modify the hardware, thereby improving the versatility and adaptability of the power module.

[0074] The communication connection enables the power module to feed back its running state information to the external device in real time. When an abnormal situation occurs, the central control unit can send fault alarm information to the external device through the communication interface unit. The external device can perform fault diagnosis and positioning according to this information, even predict possible faults in advance, take preventive measures, and improve the reliability and availability of the power module.

[0075] A voltage regulation method of a multi-output voltage power module, specifically comprising:

[0076] Receiving an external AC power supply and converting it into a DC voltage;

[0077] Each voltage conversion circuit converts the DC voltage into a specific output voltage according to a voltage conversion formula;

[0078] Real-time collection of each output voltage and output current, and transmission of the collected data to the central control unit. The central control unit calculates the voltage deviation according to the preset target output voltage of each channel and the actual output voltage collected, generates a regulation signal according to the voltage deviation, and feeds it back to each voltage conversion circuit to adjust the working parameters of each voltage conversion circuit;

[0079] The voltage conversion formula is specifically:

[0080] ;

[0081] In the formula, is the output voltage, is the DC voltage, is the voltage conversion coefficient of the nth voltage conversion circuit, and its value range is , is the working time of the nth voltage conversion circuit, is the time constant of the nth voltage conversion circuit, is the output current of the nth voltage conversion circuit, is the equivalent output resistance of the nth voltage conversion circuit.

[0082] A computing device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the voltage regulation method of the multi-output voltage power module when executing the computer program.

[0083] A computer readable storage medium, the storage medium has a computer program stored thereon, the computer program is executed by a processor to implement the steps of the voltage regulation method of the multi-output voltage power supply module.

[0084] The above only describes the preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power supply module with multiple output voltages, characterized in that: include: An input rectifier and filter unit is used to receive an external AC power supply and convert it into a DC voltage; A multi-channel independently controlled voltage conversion unit is provided with at least two independent voltage conversion circuits, each of which converts a DC voltage into a specific output voltage according to a voltage conversion formula; An intelligent feedback regulation unit is connected to each output terminal of the multiple independently controlled voltage conversion units, and is used to collect the output voltage and output current of each channel in real time and transmit the collected data to the central control unit. The central control unit calculates the voltage deviation based on the preset target output voltage of each channel and the collected actual output voltage, generates a regulation signal based on the voltage deviation, and feeds it back to each voltage conversion circuit to adjust the operating parameters of each voltage conversion circuit; The voltage conversion formula is specifically: ； Where, is the output voltage, is the DC voltage, is the voltage conversion coefficient of the n-th voltage conversion circuit, and its value range is , is the working time of the n-th voltage conversion circuit, is the time constant of the n-th voltage conversion circuit, is the output current of the n-th voltage conversion circuit, is the equivalent output resistance of the n-th voltage conversion circuit.

2. The power supply module with multiple output voltages according to claim 1, characterized in that: The input rectifier and filter unit includes a rectifier bridge and a filter capacitor. The rectifier bridge is used to convert the AC input power into a pulsating DC power supply. The filter capacitor is used to smooth and filter the pulsating DC power supply to obtain a DC voltage.

3. The power supply module with multiple output voltages according to claim 2, characterized in that: The central control unit generates a regulation signal according to the voltage deviation, specifically including: The central control unit calculates the proportional term, integral term and differential term of each voltage deviation according to the voltage deviation; The proportional term, integral term and differential term of each channel are added together to obtain the adjustment amount of each voltage conversion circuit; Generate corresponding adjustment signals according to the adjustment amount of each voltage conversion circuit.

4. The power supply module with multiple output voltages according to claim 3, characterized in that: The power module also includes a status monitoring and protection unit, which is used to monitor the input voltage, input current, output voltages and currents of each channel and the parameters of key components inside the module in real time. When any parameter is detected to be out of a preset safety range, the protection mechanism is immediately triggered to cut off the corresponding circuit or adjust the working state.

5. The power supply module with multiple output voltages according to claim 4, characterized in that: The status monitoring and protection unit includes a voltage sensor, a current sensor, a temperature sensor and a comparator circuit. The voltage sensor is used to monitor the input and output voltages in real time, the current sensor is used to monitor the input and output currents in real time, and the temperature sensor is used to monitor the temperature of key components inside the module. The comparator circuit compares the monitored parameters with the preset safety range. When the parameters exceed the range, the output protection signal triggers the corresponding protection action.

6. The power supply module with multiple output voltages according to claim 5, characterized in that: The power module further includes a communication interface unit, and the central control unit is connected to the external device through the communication interface unit.

7. A voltage regulation method for a power supply module with multiple output voltages, characterized in that: Specifically include: Receive external AC power and convert it into DC voltage; Each voltage conversion circuit converts the DC voltage into a specific output voltage according to a voltage conversion formula; The output voltage and output current of each channel are collected in real time and transmitted to the central control unit. The central control unit calculates the voltage deviation based on the preset target output voltage of each channel and the collected actual output voltage, generates an adjustment signal based on the voltage deviation, and feeds it back to each voltage conversion circuit to adjust the operating parameters of each voltage conversion circuit; The voltage conversion formula is specifically: ； Where, is the output voltage, is the DC voltage, is the voltage conversion coefficient of the n-th voltage conversion circuit, and its value range is , is the working time of the n-th voltage conversion circuit, is the time constant of the n-th voltage conversion circuit, is the output current of the n-th voltage conversion circuit, is the equivalent output resistance of the n-th voltage conversion circuit.

8. A computing device, characterized in that The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the voltage regulation method for a power supply module with multiple output voltages as claimed in claim 7 are implemented.

9. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which, when executed by a processor, implements the steps of the voltage regulation method for a power supply module with multiple output voltages as claimed in claim 7.

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