A method and system for reducing computer power consumption

Abstract

The present application relates to computer power management technology, disclose a kind of system and method for reducing computer power consumption;System includes control module, monitoring module and the regulating module being arranged between power supply and CPU;Regulating module includes parallel persistence adjustment module and transient adjustment module;The two ends of persistence adjustment module and transient adjustment module are respectively connected CPU and power supply;Monitoring module is used to collect the temperature of CPU, power supply current and voltage fluctuation data in real time;Control module is connected monitoring module, persistence adjustment module and transient adjustment module respectively, and according to whether the fluctuation value of monitoring data exceeds preset threshold range, select by transient adjustment module or persistence adjustment module to execute voltage control.This application fuses the innovative architecture of mechanical mode sustainable adjustment and electronic transient compensation, by realizing the steady state of CPU power supply voltage, provides a kind of system and method for reducing computer power consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to computer power management technology, in particular to a method and system for reducing computer power consumption. BACKGROUND

[0002] In the field of computer power management, maintaining the constant of CPU supply voltage is the core technical challenge to reduce system power consumption. The existing CPU supply voltage regulation is usually realized by two ways of software dynamic adjustment and hardware adjustment, but the defects of the two ways are: the existing pure software dynamic voltage adjustment (DVS) depends on the scheduling instructions of the operating system level, and the communication delay causes the influence of the dynamic voltage compensation mechanism to lag. The hardware voltage regulation scheme based on mechanical variable resistance or relay switching (such as reed relay voltage division network) can improve the steady-state accuracy, but due to the mechanical action delay and voltage deviation from the constant target value, it causes the instantaneous power consumption to surge. And the existing voltage regulation technology is single execution, which cannot coordinate the sustainability of mechanical mode and the transient compensation ability of electronic regulation, resulting in the inability to coordinate the differentiated voltage constant demand of transient disturbance and steady-state operation, resulting in significant voltage fluctuation and serious energy loss. SUMMARY

[0003] The present application provides a system and method for reducing computer power consumption, which realizes the steady state and safety of CPU supply voltage through the coordinated regulation of the persistence regulation module and the transient regulation module, and the innovative architecture of the mechanical mode sustainable regulation and the electronic transient compensation. The specific scheme is:

[0004] A system for reducing computer power consumption, the system comprising: a control module, a monitoring module, and a regulation module arranged between a power supply and a CPU;

[0005] The regulation module comprises a persistence regulation module and a transient regulation module in parallel;

[0006] The persistence regulation module and the transient regulation module are respectively connected to the CPU and the power supply;

[0007] The monitoring module is used to collect the temperature, power supply current and voltage fluctuation data of the CPU in real time;

[0008] The control module is connected to the monitoring module, the persistence regulation module and the transient regulation module, and the control module selects the voltage regulation by the transient regulation module or the persistence regulation module according to whether the fluctuation value of the monitoring data exceeds the preset threshold range.

[0009] Preferably, the persistence regulation module comprises:

[0010] The variable resistance unit comprises a connecting substrate and a variable resistance part, wherein the variable resistance part is composed of a plurality of unit resistors and a plurality of insulating plates arranged alternately in a linear / non-linear distribution of resistance values; the unit resistors and the insulating plates are respectively mounted on the connecting substrate.

[0011] The dynamic connection unit is slidably connected to the variable resistance part, and the voltage is adjusted by contacting the unit resistors with different resistance values.

[0012] The driving unit is located at the side with the smallest resistance value of the variable resistance part, and the driving unit is driven by the control module.

[0013] The protection unit is located at the side with the largest resistance value of the variable resistance part, and when the output voltage of the power supply exceeds the safety value, the protection unit is detachably connected with the dynamic connection unit to cut off the power supply of the CPU.

[0014] Preferably, the dynamic connection unit slides in the direction opposite to the change of the resistance value of the variable resistance part according to the real-time change of the power supply voltage, so as to maintain the constant input voltage of the CPU.

[0015] Preferably, the driving unit comprises a pushing electromagnet and a reset unit.

[0016] The pushing electromagnet is connected with the control module, and the control module controls the on-off of the pushing electromagnet and the size of the pushing force, so as to push the dynamic connection unit to move in the direction of high resistance value when the voltage of the power supply is increased.

[0017] The reset unit is located between the pushing unit and the dynamic connection unit, and is connected with the pushing electromagnet and the dynamic connection unit respectively, and the reset unit is a memory alloy pull rope, which drives the dynamic connection unit to reset to the low resistance value region when the voltage of the power supply is decreased.

[0018] Preferably, the protection unit comprises an insulator and a protection magnet arranged on the top of the insulator.

[0019] The protection magnet is connected with the control module, and when the monitoring module detects that the voltage is out of limit, the control module sends a trigger signal to the protection magnet to make the magnetic pole of the protection magnet reverse and be adsorbed with the dynamic connection unit, so as to cut off the power supply circuit through the insulator and realize the power-off protection of the CPU.

[0020] Preferably, the transient adjustment module is an LLC resonant compensation circuit, which is used for transient voltage regulation when the voltage fluctuation exceeds the threshold value, and the resonant parameters are dynamically associated with the CPU temperature and the current.

[0021] A method for reducing the power consumption of a computer, which adopts the system for reducing the power consumption of a computer, and comprises the following steps:

[0022] S1: The monitoring module collects the power supply voltage, the CPU temperature and the current data in real time.

[0023] S2: the control module determines a regulation decision according to the fluctuation value, and selects a regulation module according to the regulation decision;

[0024] S3: the selected regulation module performs adjustment to maintain stability and safety of the CPU supply voltage;

[0025] The regulation decision comprises:

[0026] If the fluctuation value exceeds the threshold range, a transient adjustment module is started to perform transient voltage compensation;

[0027] If the fluctuation value is within the threshold range, a persistent adjustment module is started to perform output voltage regulation by adjusting the resistance.

[0028] Preferably, the transient voltage compensation is realized by an LLC resonance compensation circuit, and the specific implementation process is as follows:

[0029] The equivalent inductance value Lr of the LLC resonance compensation circuit is dynamically bound with the preset CPU temperature threshold and the load current of the CPU;

[0030] When the temperature or load is suddenly changed, the resonance frequency is adaptively changed to suppress the transient voltage surge;

[0031] And when the CPU temperature or load exceeds the safety threshold, the LLC resonance compensation circuit synchronously triggers a protection unit to cut off the power supply, the control module is forced to switch to a mechanical contact resistance adjustment mode, and hard power-off is realized by dynamic contact and protection magnet adsorption.

[0032] Preferably, the specific implementation process of the control module determining the regulation decision according to the voltage fluctuation value is as follows:

[0033] The control module selects the adjustment mode based on the weighted value W of the voltage fluctuation amplitude ΔV and the duration Δt:

[0034] If W> threshold, a transient adjustment module is started;

[0035] If W≤ threshold, a persistent adjustment module is started.

[0036] The application has the following beneficial effects:

[0037] The application is connected with the monitoring module and the adjusting module through the control module, the control module automatically selects the voltage regulation performed by the transient adjusting module or the persistent adjusting module according to the power supply voltage, the temperature of the CPU and the load current value of the CPU collected by the monitoring module in real time. The adjusting module includes the transient adjusting module and the persistent adjusting module in parallel, and the two modes are dynamically switched to reasonably select the regulation mode according to the change of the power supply voltage. The persistent adjusting module linearly adjusts the power supply voltage of the CPU by slidingly contacting the unit resistors with different resistance values through the dynamic connection unit. The transient adjusting module adjusts the resonance frequency to suppress the transient drop and transient increase of the voltage according to the transient load change. The application guarantees the steady state and safety of the power supply voltage of the CPU to reduce the power consumption of the computer.

[0038] The application realizes the continuous adjustment of the power supply voltage of the CPU by the linear sliding of the dynamic connection unit in the variable resistance part, so as to improve the adjustment accuracy.

[0039] In the application, the driving unit adopts the combination of the push electromagnet and the memory alloy pull rope, so that when the voltage rises, the electromagnet drives the contact to move to the high resistance end to increase the voltage division; when the voltage decreases, the memory alloy pull rope automatically resets the contact to reduce the voltage division, forming a closed loop feedback control to ensure that the power supply voltage remains constant in a wide load range. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a principle framework diagram of a computer power consumption reduction system.

[0041] Figure 2 It is a structure schematic diagram of the persistent adjusting module in the computer power consumption reduction system according to an embodiment of the application.

[0042] Figure 3 It is a top view schematic diagram of the persistent adjusting module in the computer power consumption reduction system according to an embodiment of the application.

[0043] Figure 4 It is a force schematic diagram of the push magnet and the dynamic connection unit when the power supply voltage rises in the computer power consumption reduction system according to an embodiment of the application.

[0044] In the figure: 1, reset unit; 2, dynamic connection unit; 3, protection magnet; 4, insulator; 5, unit resistor; 6, connecting wire; 7, connecting substrate; 8, insulating plate; 9, push magnet. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0046] Embodiment one

[0047] Please refer to the drawings Figures 1-3 The system for reducing the power consumption of a computer comprises a control module, a monitoring module and a regulating module arranged between the power supply and the CPU.

[0048] The regulating module comprises a persistent regulating module and a transient regulating module connected in parallel; the two ends of the persistent regulating module and the transient regulating module are respectively connected to the CPU and the power supply.

[0049] The persistent regulating module comprises a driving unit, a variable resistance unit, a dynamic connection unit on the variable resistance unit and a protection unit on the side of the variable resistance unit opposite to the driving unit.

[0050] The connecting substrate connects the power supply.

[0051] The variable resistance unit comprises a connecting substrate and a variable resistance part on the connecting substrate.

[0052] The variable resistance part comprises a plurality of unit resistors with different resistance values and insulating plates between adjacent unit resistors; the plurality of unit resistors with different resistance values and the insulating plates are alternately arranged to form the variable resistance part; the unit resistors are linearly or non-linearly distributed in order from large to small or from small to large, and are connected to the connecting substrate; the linear arrangement means that the unit resistors are distributed in an arithmetic sequence, which is suitable for a steady load scenario; the non-linear arrangement means that the unit resistors are distributed in an exponential or logarithmic sequence, which is suitable for a dynamic load mutation scenario.

[0053] The driving unit is connected to the dynamic connection unit, the driving unit and the protection unit are respectively connected to the control module, the driving unit and the protection unit are respectively located at the two ends of the entire variable resistance unit, and the driving unit and the protection unit are respectively located at the sides opposite to the unit resistor with the smallest resistance value and the unit resistor with the largest resistance value in the variable resistance unit.

[0054] The connecting substrate 7 is respectively connected to the unit resistor 5 and the CPU.

[0055] The dynamic connection unit 2 is located on the connection surface formed by the alternately arranged unit resistors 5 of different resistance values and insulating plates 8, and is connected with the CPU through the connection wire 6 and moves along the connection surface to the side with higher or lower resistance value, and through the contact with the unit resistors of different resistance values, the dynamic connection unit slides along the direction of increasing resistance value to cope with the voltage rise, and resets along the direction of decreasing resistance value to cope with the voltage drop. Specifically, when the supply voltage rises, the electromagnetic iron is pushed to generate a magnetic field repulsion with the same pole of the dynamic connection unit, which drives the dynamic connection unit to move to the high resistance unit resistor, and through increasing the series resistance voltage division, the CPU input voltage is reduced; when the supply voltage drops, the memory alloy pull rope contracts due to temperature drop, which pulls the dynamic connection unit to reset to the low resistance unit resistor, and through reducing the series resistance voltage division, the CPU input voltage is increased, so as to maintain the constant input voltage.

[0056] In the embodiment, the different resistance values of the unit resistors 5 are realized by the thickness of each unit resistor, the resistance value of the unit resistor increases linearly with the increase of the thickness, and the height of the insulating plate is determined by the thickness of the two adjacent unit resistors, so as to realize the variable resistance part composed of the alternately arranged unit resistors and insulating plates in the trapezoidal structure. The connection substrate is located at the bottom of the horizontal leg of the trapezoidal structure; the driving unit and the protection unit are respectively located on one side of the upper base and the lower base of the trapezoidal structure; the dynamic connection unit is slidably connected to the inclined surface of the trapezoidal structure, and the dynamic connection unit slides along the inclined surface of the trapezoidal structure, and the moving direction is opposite to the change of the supply voltage (moves to the high resistance end when the voltage rises, and resets to the low resistance end when the voltage drops).

[0057] The driving unit includes a push magnet and a reset unit; the reset unit is located between the push magnet and the dynamic connection unit, and the two ends are respectively connected with the push magnet and the dynamic connection unit.

[0058] The dynamic connection unit is a magnet;

[0059] As shown in Figure 4 The push magnet 9 is an electromagnet connected with the control module, and the current size is positively correlated with the supply voltage: when the supply voltage rises, the control module increases the current of the push magnet 9 to generate a stronger magnetic field repulsion (i.e. the force shown in the horizontal direction), since the magnetic field repulsion is of the same pole with the dynamic connection unit 2, and the dynamic connection unit 2 is slidably connected with the variable resistance part, based on the repulsion of the same pole, the push magnet 9 pushes the connection unit 2 to move along the variable resistance to the high resistance value direction (uphill) through the magnetic field repulsion (i.e. the force shown in the inclined surface in the figure); when the supply voltage drops, the control module reduces the current of the push magnet, and the reset unit 1 pulls the dynamic connection unit 2 to reset to the low resistance value direction (downhill);

[0060] The reset unit 1 is a memory alloy, which deforms according to the size of the supply voltage, specifically: as the output voltage of the power supply increases, and the pulling force of the dynamic connection unit becomes longer; as the output voltage of the power supply decreases, the temperature decreases, and the dynamic connection unit is pulled downhill (towards the unit resistance of the side with the reduced resistance); to compensate for the continuously decreasing output voltage of the power supply;

[0061] In the present application, the dynamic connection unit is driven to move in the direction of high resistance by the magnetic pole repulsion force (the same magnetic pole as the dynamic connection unit) of the push magnet; the reset unit contracts due to the temperature drop when the voltage decreases, pulling the contact to reset in the direction of low resistance, thereby ensuring the constant voltage supplied to the CPU.

[0062] The protection unit includes an insulator 4 and a protection magnet 3;

[0063] The insulator 4 in the protection unit is located on the side of the unit resistance 5 of the variable resistance part facing away from the driving unit, when the monitoring module detects that the output voltage of the power supply exceeds 120% of the rated value, the control module sends a trigger signal to the protection magnet 3, so that the magnetic pole of the protection magnet 3 is opposite to the magnetic pole of the dynamic connection unit 2, realizing the adsorption of the dynamic connection unit 2, cutting off the power supply circuit through the insulator 4, and realizing the power-off protection of the CPU;

[0064] The protection magnet 3 is installed on the top of the insulator, the protection magnet and the dynamic connection unit are located on the same plane, and the magnetic pole of the protection magnet 3 is opposite to the magnetic pole of the push unit;

[0065] The magnetic pole of the dynamic connection unit 2 is opposite to the magnetic pole of the protection magnet, and the same as the magnetic pole of the push unit.

[0066] When the output voltage of the power supply exceeds the safety value, the dynamic connection unit moves into the magnetic attraction range of the protection magnet, and the dynamic connection unit protection magnet is magnetically connected, at this time, the dynamic connection unit is connected with the power supply through the insulator at the bottom of the protection magnet, and is not connected with the CPU, thereby realizing the power-off protection of the CPU.

[0067] In the present embodiment, the protection magnet and the push magnet are respectively located at the highest point and the lowest point of the inclined plane of the right-angled trapezoidal structure, which avoids the dynamic connection unit from falling off the variable resistance part under the premise of realizing their respective functions.

[0068] The instantaneous adjustment module is an LLC resonant compensation module.

[0069] The equivalent value of the resonant inductance Lr in the LLC resonant compensation module is dynamically adjusted by a magnetic core adjustable inductor. The control module adjusts the switching frequency (range: 50 kHz-500 kHz) in real time according to the CPU temperature and current fluctuation signals collected by the monitoring module, and suppresses voltage transient fluctuations (response time ≤1 μs);

[0070] In the embodiment, the connecting substrate is made of high-thermal-conductivity copper alloy;

[0071] The dynamic connection unit is provided with gold-plated conductive contacts, and the surfaces of the contacts are coated with graphene coating to reduce friction loss. The push electromagnet is connected with the control module, and drives the dynamic connection unit to slide along the variable resistance part by generating magnetic field force (such as electromagnetic attraction or repulsion);

[0072] The unit resistance is made of carbon film material, and the thickness is adjusted by laser etching process, and the resistance value increases linearly with the increase of the thickness;

[0073] The current of the push magnet is positively correlated with the supply voltage.

[0074] The reset unit is a nickel-titanium alloy memory pull rope, and the two ends are connected with the push electromagnet and the dynamic connection unit respectively. When the supply voltage decreases, the control module reduces the current of the push electromagnet, the memory pull rope shrinks due to temperature drop, and pulls the dynamic connection unit to reset to the low resistance direction of the variable resistance part, thereby reducing the series resistance to improve the CPU input voltage.

[0075] Embodiment two

[0076] A method for reducing computer power consumption, characterized in that a system for reducing computer power consumption according to any one of claims 1-6 is used, comprising the following steps:

[0077] S1: The monitoring module collects the output voltage, CPU temperature and current data of the power supply in real time;

[0078] S2: The control module determines the control decision according to the voltage fluctuation value, and selects the corresponding control module according to the control decision;

[0079] S3, the selected control module is adjusted to maintain the stability and safety of the CPU supply voltage;

[0080] The control decision includes:

[0081] If the fluctuation value exceeds the threshold range, the transient adjustment module is started to compensate for transient voltage;

[0082] If the fluctuation value is within the threshold range, the continuous adjustment module is started to adjust the output voltage by adjusting the resistance.

[0083] Further, the transient voltage compensation is realized by the LLC resonance compensation circuit, and the specific implementation process is:

[0084] The equivalent inductance value (Lr) of the LLC resonance compensation circuit is dynamically bound with the preset CPU temperature threshold and the load current of the CPU;

[0085] The equivalent inductance value (Lr) of the LLC resonance compensation circuit is dynamically associated with the CPU temperature (T) and the load current (I), and specifically satisfies:

[0086] Wherein, k is a preset proportion coefficient;

[0087] When the temperature or load is suddenly changed, the resonance frequency is adaptively changed to suppress the transient voltage surge.

[0088] Wherein, when the CPU temperature or load exceeds the safety threshold, the LLC resonance compensation circuit synchronously triggers the protection unit to cut off the power supply, the control module is forced to switch to the mechanical contact resistance adjustment mode, and the hard power-off is realized by the dynamic contact and the protection magnet adsorption.

[0089] The specific process is:

[0090] In this embodiment, the CPU temperature is collected by a high-precision thermistor, and the load current of the CPU is collected by a high-precision current sampling resistor in series with the CPU power supply line.

[0091] A high-precision thermistor (specifically an NTC negative temperature coefficient thermistor) is closely attached near the CPU core, and a voltage dividing circuit is constructed by using the characteristic that the resistance value of the thermistor changes with temperature. The analog voltage signal after voltage division is connected to the ADC pin of the control module, and is converted to digital quantity by ADC, and then the digital quantity is converted to the corresponding temperature value T according to the characteristic curve and calibration parameters of the thermistor. In order to improve the accuracy and stability of temperature collection, the method of multiple sampling and averaging is adopted, and the collected data is filtered to remove high-frequency noise interference.

[0092] A high-precision current sampling resistor (specifically a constantan wire resistor) is connected in series with the power supply line of the CPU, and the current signal is collected by using the relationship that the voltage drop across the resistor is proportional to the current passing through. After the voltage difference across the sampling resistor is amplified by an instrument amplifier, it is connected to the ADC pin of the control module for digital conversion. Similarly, the collected current data is processed by multiple sampling and averaging and filtering to obtain the accurate effective value I of the supply current.

[0093] After the control module is powered on, the internal registers, ADC sampling parameters and proportion coefficient k are initialized and set to ensure that the system is in a stable initial state.

[0094] The control module initiates the ADC to sample the temperature and current signals at fixed time intervals, obtains the latest T and I values, and updates them to the internal data storage area.

[0095] According to the collected T and I values, substitute them into the formula , to calculate the equivalent inductance value Lr required by the LLC resonance compensation circuit under the current working condition.

[0096] The control module generates the corresponding PWM (pulse width modulation) control signal according to the calculated Lr value, adjusts the on and off time of the switch tube in the LLC resonance compensation circuit through the drive circuit, thereby changing the equivalent inductance of the circuit, and realizes the dynamic adjustment of the resonance parameters.

[0097] Real-time monitoring of the working state of the CPU and the stability of the power supply voltage, if the power supply is found to be abnormal (such as voltage fluctuation exceeding the allowed range), the proportional coefficient k is fine-tuned, the Lr value is recalculated and the control signal is adjusted to optimize the compensation effect of the system. At the same time, the system operation data (such as temperature, current, Lr value, etc.) are uploaded to the monitoring terminal, so that the user can master the equipment operation status in real time.

[0098] Through the implementation of the above temperature and current correlation algorithm, the control module can realize precise control of the LLC resonance compensation circuit, effectively improve the adaptability and stability of the system under different working conditions, and ensure the reliable operation of the CPU.

[0099] Further, the control module determines the control decision according to the voltage fluctuation value, and the specific implementation process is as follows:

[0100] The control module selects the adjustment mode based on the weighted value W = a·AV + b·At of the voltage fluctuation amplitude (AV) and the duration (At):

[0101] If W > Wth (threshold value), start the transient adjustment module;

[0102] If W ≤ Wth (threshold value), start the persistent adjustment module.

[0103] In this application, the intelligent module intelligently judges the adjustment mode through the weighted value W = a·AV + b·At: when the voltage fluctuation amplitude AV or the duration At exceeds the threshold Wth (such as sudden transient disturbance), the LLC resonance compensation circuit is preferentially enabled for transient response; when the fluctuation is in the steady state range, switch to the persistent adjustment module to realize low-power precise control through mechanical resistance adjustment. This mechanism avoids the limitations of a single mode under complex working conditions, dynamically balances the system between "fast response" and "energy efficiency optimization", and improves the energy efficiency compared with the traditional single adjustment scheme;

[0104] And according to the real-time acquisition of CPU core temperature and load current, the voltage fluctuation threshold range is dynamically adjusted. For example: under high temperature working condition, the threshold is automatically tightened (Wth is reduced), and the protection mechanism is triggered in advance; when the load is light and the temperature is low, the threshold is relaxed, and the switching frequency of the adjustment module is reduced to reduce the loss.

Claims

1. A system for reducing computer power consumption, characterized in that, The system includes: a control module, a monitoring module, and a regulation module located between the power supply and the CPU; The control module includes a continuous control module and an instantaneous control module connected in parallel; The two ends of the continuous adjustment module and the instantaneous adjustment module are respectively connected to the CPU and the power supply; The monitoring module is used to collect CPU temperature, power supply current and voltage fluctuation data in real time. The control module is connected to the monitoring module, the continuous adjustment module, and the instantaneous adjustment module respectively. The control module selects whether the voltage regulation is performed by the instantaneous adjustment module or the continuous adjustment module based on whether the fluctuation value of the monitoring data exceeds the preset threshold range. The continuous adjustment module includes: A variable resistance unit includes a connecting substrate and a variable resistance section. The variable resistance section is composed of several unit resistors with linear / non-linear resistance values ​​arranged alternately with several insulating plates. The unit resistors and insulating plates are respectively mounted on the connecting substrate. The dynamic connection unit is slidably connected to the variable resistance section, and the voltage is adjusted by contacting unit resistors with different resistance values. The drive unit is located on the side of the variable resistance section where the resistance is the smallest, and the drive unit is driven by the control module; The protection unit, located on the side with the largest resistance of the variable resistor section, is detachably connected to the dynamic connection unit to cut off the power supply to the CPU when the output voltage of the power supply exceeds the safe value. The instantaneous adjustment module is an LLC resonant compensation circuit, used to perform transient voltage regulation when voltage fluctuations exceed the threshold. Its resonant parameter, namely the equivalent value of Lr, is dynamically related to the CPU temperature and current. The control module selects the adjustment mode based on the weighted value W of the voltage fluctuation amplitude ΔV and the duration Δt: If W > threshold, activate the instantaneous adjustment module; If W ≤ threshold, start the continuous adjustment module.

2. The system for reducing computer power consumption according to claim 1, characterized in that, The dynamic connection unit slides in the opposite direction to the voltage change of the variable resistor section based on the real-time changes in the power supply voltage, so as to maintain a constant CPU input voltage.

3. The system for reducing computer power consumption according to claim 1, characterized in that, The driving unit includes: a driving electromagnet and a reset unit; The driving electromagnet is connected to the control module, which controls its on / off state and the magnitude of the thrust, so that when the voltage of the power supply increases, it drives the dynamic connection unit to move towards a higher resistance value. The reset unit is located between the push unit and the dynamic connection unit, and is connected to the push electromagnet and the dynamic connection unit respectively. The reset unit is a shape memory alloy pull rope, which drives the dynamic connection unit to reset to the low resistance region when the voltage of the power supply decreases.

4. The system for reducing computer power consumption according to claim 1, characterized in that, The protection unit includes: an insulator and a protective magnet disposed on the top of the insulator; The protective magnet is connected to the control module. When the monitoring module detects that the voltage exceeds the limit, the control module sends a trigger signal to the protective magnet, causing its magnetic poles to reverse and attract to the dynamic connection unit. The power supply circuit is then cut off through the insulator, thus achieving power-off protection for the CPU.

5. A method for reducing computer power consumption, characterized in that, A system for reducing computer power consumption according to any one of claims 1 to 4 includes the following steps: S1: The monitoring module collects power supply voltage, CPU temperature and current data in real time; S2: The control module determines the control decision based on the fluctuation value and selects the corresponding control module based on the control decision; S3: Adjust the selected control module accordingly to maintain the stability and safety of the CPU power supply voltage; The regulatory decisions include: If the fluctuation value exceeds the threshold range, the instantaneous adjustment module is activated to perform transient voltage compensation; If the fluctuation value is within the threshold range, the continuous adjustment module is activated to regulate the output voltage by adjusting the resistor.

6. The method for reducing computer power consumption according to claim 5, characterized in that, Transient voltage compensation is achieved through an LLC resonant compensation circuit, and its specific implementation process is as follows: The equivalent inductance value Lr of the LLC resonant compensation circuit is dynamically bound to the preset CPU temperature threshold and the CPU load current. When temperature or load changes abruptly, the resonant frequency adapts to suppress transient voltage surges. Furthermore, when the CPU temperature or load exceeds the safety threshold, the LLC resonant compensation circuit synchronously triggers the protection unit to cut off the power supply, the control module is forced to switch to the mechanical contact resistance adjustment mode, and hard power cut-off is achieved by the dynamic contacts adsorbing with the protective magnet.

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