CN102073364B - Multi-phase power supply device and current adjustment method thereof - Google Patents
Multi-phase power supply device and current adjustment method thereof Download PDFInfo
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Abstract
The invention provides a multi-phase power supply device and a current adjustment method thereof. The multi-phase power supply device can output different phases of voltage sources and current to a microprocessor to detect modules and adjust the current of various phases of voltage sources according to detected temperature of current various voltage sources and current sources so as to achieve the effect of heat balance. The multi-phase power supply device also has a function of automatically measuring the power efficiency, can be used for displaying the result ofthe detected temperature of various phases of voltage sources and the power efficiency on a screen to ensure that a user can conveniently know the working efficacy of the power supply device.
Description
Technical field
The invention relates to a kind of polyphase source supply device, and relate to especially a kind of polyphase source supply device with the each phase voltage temperature of automatic adjustment and auto-measuring efficiency.
Background technology
Along with the usefulness of microprocessor strengthens, its power supply requirement is also just larger, and required immediate current is also higher, and traditional single-phase type current supply cannot meet present system requirements.Current microprocessor, image and storage system are all used polyphase source solution, and the power supply device on motherboard is also supported the power supply provisioning technique of heterogeneous formula.Common heterogeneous formula power supply device have 4 with the power rectifier module of 8 phases (Voltage Regulator Module is called for short VRM).Polyphase source utensil has the advantage of phase cross-over, carry out Phase-switching by the unified time interval, the voltage waveform of its output and electric current can be adjusted to by the switching of other phase place average level, in the time that microprocessor moment needs large electric current, polyphase source also can provide larger immediate current by more current path simultaneously.
On the color box of traditional motherboard, can indicate the efficiency of power rectifier module, the result of normally utilizing a fixture (Intel made) that is called as VRTOOL to measure, VRTOOL is the instrument of virtual microprocessor load, see through this fixture of VRTOOL and can take out the action of carrying to power rectifier module, and by its pin position, each numerical value is read out, comprise input voltage, electric current and output voltage, electric current, be then inserted in the formula of power-efficient:
Wherein, Vout is output voltage, and Vin is input voltage, and Iout is output current, and Iin is input current.So just can know the efficiency under different loads, then in operation instruction, indicate the highest efficiency and publicize.In addition, aspect the measuring temp of power rectifier module, can adopt infrared image instrument to take power rectifier module, distribute to know current focus (hot spot) by the relative temperature on image, but but cannot solve like this problem of heat history.Above-mentioned two kinds of practices are all power-efficient and the temperature datas that manual operation obtains, so the result of measuring is not accurate, make the power supply poor effect of output, also cannot reach the object of automatic adjustment power-efficient.
Summary of the invention
The invention provides a kind of polyphase source supply device, be arranged on motherboard, it utilizes detection module to detect the temperature variation in each phase voltage source, and by the temperature of adjusting the size of current in each phase voltage source and adjust each phase voltage source, allow temperature reach balance, in addition, detection module also can be used to detect the power-efficient of power rectifier module, and its numerical value is shown on screen, allow user can learn easily the power-efficient of power rectifier module and the temperature variation in each phase voltage source.
Hold above-mentionedly, the present invention proposes a kind of polyphase source supply device, comprises power rectifier module, detection module, arithmetic element and power supply processing unit.Power rectifier module is coupled to a voltage source and a microprocessor, and power rectifier module provides heterogeneous extremely above-mentioned microprocessor of voltage source via multiple current paths.
Detection module is coupled to power rectifier module, in order to detect the temperature of the corresponding each above-mentioned current path in each phase voltage source.Arithmetic element is coupled to detection module, and according to temperature computation one medial temperature of each above-mentioned current path, and the temperature of more each above-mentioned current path and above-mentioned medial temperature are to export a comparative result.Power supply processing unit is coupled to arithmetic element and power rectifier module, adjusts the current value of each above-mentioned current path according to comparative result.
In the time adjusting the current value of each above-mentioned current path, when the temperature of the current path in current path is during higher than medial temperature, power supply processing unit reduces the electric current of the first current path institute conducting; When the temperature of current path is during lower than medial temperature, power supply processing unit can improve the electric current of above-mentioned current path institute conducting.
From another perspective, the present invention proposes a kind of current adjusting method of polyphase source supply device, polyphase source supply device is exported heterogeneous voltage source via multiple current paths, first current adjusting method comprise the following steps:, detects the temperature corresponding to the more above-mentioned current path of the voltage source of all phases; Then, according to temperature computation one medial temperature of current path.Then, whether the temperature of more each above-mentioned current path and medial temperature respectively, use the temperature that judges each above-mentioned current path higher than medial temperature.Next, reduce the electric current of temperature higher than the current path institute conducting of medial temperature, and improve the electric current of temperature lower than the current path institute conducting of medial temperature.By the electric current of adjusting the conducting of each above-mentioned current path institute to reach thermally equilibrated effect.
Based on above-mentioned, polyphase source supply device provided by the present invention has robotization and detects the function of power-efficient and temperature, utilizes electric current that the testing result of each phase temperature adjusts each phase voltage source to reach the effect of equalized temperature simultaneously.In addition, user can learn power-efficient that power rectifier module is current and the temperature variation in each phase voltage source in real time via screen.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate appended graphic being described in detail below.
Brief description of the drawings
Fig. 1 is according to the calcspar of the polyphase source supply device of first embodiment of the invention.
Fig. 2 is according to the circuit diagram of the detection module 120 of first embodiment of the invention.
Fig. 3 A is according to the circuit diagram of the first voltage slowdown monitoring circuit 220 of first embodiment of the invention.
Fig. 3 B is according to the circuit diagram of the second voltage measurement circuit 240 of first embodiment of the invention.
Fig. 3 C is according to the circuit diagram of the first current measurement circuit 230 of first embodiment of the invention.
Fig. 3 D is according to the circuit diagram of the second current measurement circuit 250 of first embodiment of the invention.
Fig. 4 is according to the current adjusting method process flow diagram of the polyphase source supply device of the embodiment of the present invention.
Embodiment
The first embodiment
Please refer to Fig. 1, Fig. 1 is according to the calcspar of the polyphase source supply device of first embodiment of the invention.Polyphase source supply device comprises power rectifier module 110, detection module 120, arithmetic element 130 and power supply processing unit 140.Detection module 120 is coupled to power rectifier module (Voltage RegulatorModule is called for short VRM) 110 and arithmetic element 130, and arithmetic element 130 is coupled to power supply processing unit 140.Power rectifier module 110 is coupled to voltage source 160 and microprocessor 150.It should be noted that, polyphase source supply device and microprocessor 150 are arranged on motherboard 100, the input voltage vin that export in power rectifier module 110 receiver voltage sources 160, then be converted into the voltage source of heterogeneous (N phase) and export microprocessor 150 to, N is positive integer, for example 4,8,16 or 36.
Taking eight phase voltage sources as example, power rectifier module 110 can, via the voltage source of eight current paths (eight groups of commutation circuits) output eight-phase, be divided into eight phase places by voltage source, powers to microprocessor 150 respectively by eight current paths.Because electric current can be sent to microprocessor 150 via eight current paths, therefore eight-phase voltage source can provide the higher magnitude of current, and the magnitude of current of indivedual phase places can be lower than traditional single-phase power supply unit, can reduce by this heat of voltage source.In addition, in the time that microprocessor 150 starts, can moment draw high the required magnitude of current, now can utilize eight current paths to supply induced current, to promote higher load simultaneously.
Detection module 120 is in order to the current path temperature T 1～T8 (taking eight-phase voltage source as example) in each phase voltage source of detecting power rectifier module 110 and exporting, detection module 120 can utilize thermistor to be arranged at the current path of each phase place, thermal induction element detects the current path temperature T 1～T8 of each phase place, and wherein current path temperature T 1～T8 represents the temperature of the voltage source of each phase place.Thermistor can be arranged on the inductance side (being the current path side of each phase place) of each phase place, or the assembly side of its plain conductor side or electric current process is with the temperature of each phase place of sensing.Then, detection module 120 can be sent to arithmetic element 130 by detected current path temperature T 1～T8, arithmetic element 130 can be calculated the medial temperature of current path temperature T 1～T8 temperature and the medial temperature of more each phase place, then comparative result is sent to power supply processing unit 140.Power supply processing unit 140 can be adjusted according to comparative result the magnitude of current of each phase place, and the magnitude of current that temperature is greater than to the phase place of medial temperature reduces; Temperature is raise lower than the magnitude of current of the phase place of medial temperature, allow by this overall equalized temperature.Although above-mentioned adjustment can cause the current imbalance of each phase place, can make so overall equalized temperature, can not allow people have the illusion of current imbalance.
Moreover detection module 120 also has effect of the power-efficient that detects power rectifier module 110, detection module 120 can detect input voltage vin, input current Iin, output voltage V out and the output current Iout of power rectifier module 110.Then, utilize the formula of power-efficient to calculate the power-efficient of power rectifier module 110, the formula of power-efficient is as follows:
Detection module 120 utilizes above-mentioned formula to calculate a power-efficient value, and exported to arithmetic element 130, arithmetic element 130 can export the temperature detection value of power-efficient value and each phase place to screen, by the current detected numerical value of screen display, allow user can learn easily current power-efficient and the temperature of each phase place.Meanwhile, why user also can learn the power-efficient of power rectifier module in unequally loaded situation via shown numerical value.
In the context of detection of power-efficient, the detection module 120 of the present embodiment can be realized detecting by the chip of temperature detecting module (power thermal module is called for short PTM) and its peripheral circuit input voltage vin, input current Iin, output voltage V out and the output current Iout of power rectifier module 110.The mode that detection module 120 detects input voltage vin and output voltage V out is to utilize the mode of bleeder circuit to detect, and input current Iin and output current Iout utilize the mode of current measurement circuit to measure.
Next please refer to Fig. 2, Fig. 2 is according to the circuit diagram of the detection module 120 of first embodiment of the invention, and detection module 120 comprises temperature detecting unit 210, the first voltage slowdown monitoring circuit 220, the first current measurement circuit 230, second voltage measurement circuit 240, the second current measurement circuit 250.
The first voltage slowdown monitoring circuit 220, the first current measurement circuit 230, second voltage measurement circuit 240 and the second current measurement circuit 250 are coupled to temperature detecting unit 210, wherein the first voltage slowdown monitoring circuit 220 is bleeder circuit with second voltage measurement circuit 240, formed by resistance, can provide the dividing potential drop V1 of input voltage vin and the dividing potential drop V2 of output voltage V out to temperature detecting unit 210.The first current measurement circuit 230 and the second current measurement circuit 250 are current measurement circuit (Direct Current Resistancesensing circuit is called for short DCR), by module compositions such as resistance, inductance and electric capacity.Temperature detecting unit 210 can calculate input current Iin and output current Iout via capacitance partial pressure VC1, VC2 in current measurement circuit.
Next, further illustrate the circuit of the first voltage slowdown monitoring circuit 220, the first current measurement circuit 230, second voltage measurement circuit 240, the second current measurement circuit 250, please refer to Fig. 3 A, Fig. 3 B, Fig. 3 C and Fig. 3 D, Fig. 3 A is according to the circuit diagram of the first voltage slowdown monitoring circuit 220 of the present embodiment, and Fig. 3 B is according to the circuit diagram of the second voltage measurement circuit 240 of the present embodiment.The first voltage slowdown monitoring circuit 220 is made up of in input voltage vin and ground connection GND resistance R 1, R2 coupled in series, the shared node of resistance R 1, R2 can be exported dividing potential drop V1 to temperature detecting unit 210, second voltage measurement circuit 220 is made up of in output voltage V out and ground connection GND resistance R 3, R4 coupled in series, and the shared node output dividing potential drop V2 of resistance R 3, R4 is to temperature detecting unit 210.By this, temperature detecting unit 210 is known input voltage vin and the output voltage V out of power rectifier module 110 by inference according to dividing potential drop V1, V2.
Fig. 3 C is according to the circuit diagram of the first current measurement circuit 230 of the present embodiment, the first current measurement circuit 230 comprises resistance R in, inductance L in and capacitor C 1, resistance R in and capacitor C 1 coupled in series be the input end with power rectifier module 110 in voltage source 160, and the same coupled in series of inductance L in is the input end with power rectifier module 110 in voltage source 160.Wherein resistance DCR represents the equivalent resistance of inductance L in the time of direct current.Capacitance voltage VC1 represents the voltage difference at capacitor C 1 two ends.Ratio at inductance L in and resistance DCR equals Rin*C1, and capacitance voltage VC1 can be relevant to the electric current I in of the inductance L in that flows through, and its formula is as follows:
VC1＝I
in×DCR1
Temperature detecting unit 210 can change the electric current I in that knows the inductance L in that flows through by inference via capacitance voltage VC1, brings in sense capacitance voltage VC1 so the gain amplifier 212 of temperature detecting unit 210 inside can be connected to two of capacitor C 1.Therefore as long as the first current measurement circuit 230 is series to the input current Iin that just can know power rectifier module 110 by inference on the input path of power rectifier module 110.Because inductance DCR measurement technology is the technology that current measurement is conventional, therefore its derivation does not add and repeats at this.The output current Iout of power rectifier module 110 can utilize inductance DCR measurement technology to measure equally.
Same, the output current Iout of power rectifier module 110 also can use inductance DCR measurement technology to measure.Because power rectifier module 110 has the output of eight-phase, the resistance and the inductance that are therefore series at the output terminal of power rectifier module 110 need be according to current path settings out of the ordinary, and electric capacity is shared.Please refer to Fig. 3 D, Fig. 3 D is according to the circuit diagram of the second current measurement circuit 250 of first embodiment of the invention.The second current measurement circuit 250 comprises 8 resistance R out, 8 inductance L out, capacitor C 2 and resistance R
cSN.Resistance R out and inductance L out are separately positioned on the output current path of voltage source PH1～PH8 of each phase, and the other end of resistance R out and inductance L out is coupled to the two ends of capacitor C 2.Resistance R
cSNbe coupled to one end of temperature detecting unit 210 and capacitor C 2.The shared contact of capacitor C 2 and inductance L out is coupled to the power input of microprocessor 150.Voltage source PH1～PH8 via inductance L out transmit output voltage V out to the power input of microprocessor 150 to provide microprocessor 150 required working power.Wherein, resistance DCR2 is for representing the equivalent resistance of inductance L out when the direct current.
The capacitance voltage VC2 at capacitor C 2 two ends can be relevant to the inductance L out institute On current of all phases, therefore just can extrapolate output current Iout via capacitance voltage VC2.The gain amplifier 214 of temperature detecting unit 210 inside can be connected to two of capacitor C 2 and bring in sense capacitance voltage VC2.The current measurement principle of the second current measurement circuit 250 is identical with Fig. 3 C, and difference is mainly that output current Iout is made up of heterogeneous voltage source, therefore need to be on the current path of each phase resistance in series Rout and inductance L out detect.For heterogeneous current detecting, its principle is identical with above-mentioned Fig. 3 C, and after exposure of the present invention, the art has knows that the knowledgeable should know its application mode easily by inference, does not add and repeats at this conventionally.In addition, it should be noted that the peripheral circuit that detects voltage and electric current is not restricted to bleeder circuit and the inductance DCR circuit described in the present embodiment, all can as long as can detect the correlation technique of voltage and electric current.
In addition, the major function of above-mentioned detection module 120 is detected temperatures and power-efficient, detection module 120 can be made up of temperature detecting unit 210 and peripheral circuit, and temperature detecting unit 210 is for example the chip with analog-digital converter (A/D converter) and gain amplifier.Because above-mentioned the first voltage slowdown monitoring circuit 220, the first current measurement circuit 230, second voltage measurement circuit 240 and the second current measurement circuit 250 have had the function that current signal is converted to voltage signal, if therefore temperature detecting unit 210 have analog-digital converter can output voltage and the sensing value of electric current carry out the computing of power-efficient for arithmetic element 130.Aspect measuring temp, can the signal of thermistor institute sensing be converted to digital signal by analog-digital converter equally, and offer arithmetic element 130 and carry out thermally equilibrated computing.Arithmetic element 130 can be sent to power supply processing unit 140 by obtained data, and power supply processing unit 140 can, according to the temperature of phase out of the ordinary, be adjusted the current value of each phase to reach thermally equilibrated effect.Wherein, arithmetic element 130 can utilize embedded controller (embedded controller) to realize, and 140 of power supply processing units are for example the EPU (Energy Processing Unit) of Asus's motherboard.
From another viewpoint, above-mentioned the first embodiment can be summarized as a kind of current adjusting method of polyphase source supply device, please refer to Fig. 4, and Fig. 4 is according to the current adjusting method process flow diagram of the polyphase source supply device of first embodiment of the invention.Polyphase source supply device is exported the voltage source of multiple phase places via multiple (N) current path, N is positive integer, first above-mentioned current adjusting method comprise the following steps:, detects the temperature (step S410) corresponding to the current path of the voltage source of all phases; Then, according to temperature computation one medial temperature (step S420) of all current paths, then respectively the temperature of more each above-mentioned current path and medial temperature with the temperature that judges each above-mentioned current path whether higher than medial temperature (step S430).When the temperature that has a current path reduces the electric current (step S440) of above-mentioned current path institute conducting during higher than medial temperature, when the temperature that has a current path improves the electric current (step S450) of above-mentioned current path institute conducting lower than medial temperature.By the electric current of adjusting the conducting of each above-mentioned current path institute to reach thermally equilibrated effect.
In addition, above-mentioned current adjusting method also comprises according to the input voltage of polyphase source supply device, input current, output voltage and output current and calculates a power-efficient value, then shows temperature and the power-efficient value of each above-mentioned current path.All the other details of above-mentioned current adjusting method can be known by inference via above-mentioned the first embodiment, do not add and repeat at this.
In sum, the current value that polyphase source supply device of the present invention can be adjusted each phase according to the temperature of each phase is to reach thermally equilibrated effect, and can automatically detect the power-efficient of power rectifier module, allow user learn the power-efficient of polyphase source supply device under different loads and the Temperature Distribution of each phase from screen.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; under any, in technical field, have and conventionally know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on claims person of defining.
Claims (11)
1. a polyphase source supply device, is characterized in that, comprising:
Power rectifier module, is coupled to voltage source and microprocessor, and above-mentioned power rectifier module provides the voltage source of multiple phase places to above-mentioned microprocessor via multiple current paths;
Detection module, is coupled to above-mentioned power rectifier module, and in order to detect the temperature of the corresponding each above-mentioned current path in each phase voltage source, above-mentioned detection module also comprises:
Temperature detecting unit,
The first voltage slowdown monitoring circuit, is coupled to input end and the said temperature detecting unit of above-mentioned power rectifier module, and said temperature detecting unit detects via above-mentioned the first voltage slowdown monitoring circuit the input voltage that above-mentioned power rectifier module receives, and
The first current measurement circuit, be coupled to input end and the said temperature detecting unit of above-mentioned power rectifier module, the input current that said temperature detecting unit receives via the above-mentioned power rectifier module of above-mentioned the first current measurement electric circuit inspection, above-mentioned the first current measurement circuit also comprises:
The first resistance, and
Electric capacity, above-mentioned electric capacity and above-mentioned the first resistance are coupled to the input end of above-mentioned voltage source and above-mentioned power rectifier module,
Wherein said temperature detecting unit calculates according to the resistance value of the magnitude of voltage at above-mentioned electric capacity two ends and above-mentioned the first resistance the above-mentioned input current that above-mentioned power rectifier module receives;
Arithmetic element, is coupled to above-mentioned detection module, and according to the temperature computation medial temperature of each above-mentioned current path, and the temperature of more each above-mentioned current path and above-mentioned medial temperature are with output comparative result; And
Power supply processing unit, is coupled to above-mentioned arithmetic element and above-mentioned power rectifier module, adjusts the current value of each above-mentioned current path according to above-mentioned comparative result.
2. polyphase source supply device according to claim 1, is characterized in that, wherein, when the temperature of the first current path in above-mentioned current path is during higher than above-mentioned medial temperature, above-mentioned power supply processing unit reduces the electric current of above-mentioned the first current path institute conducting; When the temperature of above-mentioned the first current path is during lower than above-mentioned medial temperature, above-mentioned power supply processing unit improves the electric current of above-mentioned the first current path institute conducting.
3. polyphase source supply device according to claim 1, is characterized in that, wherein above-mentioned detection module comprises:
Multiple thermistors, are arranged on the corresponding each above-mentioned current path in above-mentioned each phase voltage source, and above-mentioned thermistor is coupled to said temperature detecting unit, in order to detect the temperature of above-mentioned current path.
4. polyphase source supply device according to claim 1, is characterized in that, also comprises:
Second voltage measurement circuit, is respectively coupled to above-mentioned current path and said temperature detecting unit, and said temperature detecting unit detects the output voltage of above-mentioned power rectifier module via above-mentioned second voltage measurement circuit; And
The second current measurement circuit, is coupled to above-mentioned current path and said temperature detecting unit, and said temperature detecting unit is via the output current of the above-mentioned power rectifier module of above-mentioned the second current measurement electric circuit inspection.
5. polyphase source supply device according to claim 4, it is characterized in that, the above-mentioned input voltage that wherein above-mentioned detection module receives according to above-mentioned power rectifier module and above-mentioned output voltage and the above-mentioned output current of above-mentioned input current and above-mentioned power rectifier module, out-put supply efficiency value is to above-mentioned arithmetic element.
6. polyphase source supply device according to claim 5, is characterized in that, wherein above-mentioned arithmetic element shows above-mentioned power-efficient value and the temperature value corresponding to each phase voltage source via display device.
7. polyphase source supply device according to claim 1, is characterized in that, wherein above-mentioned the first voltage slowdown monitoring circuit comprises:
The first resistance;
The second resistance, above-mentioned the second resistance and above-mentioned the first resistance are coupled to input end and the ground connection of above-mentioned power rectifier module, and the shared end of above-mentioned the second resistance and above-mentioned the first resistance is coupled to said temperature detecting unit.
8. polyphase source supply device according to claim 1, is characterized in that, wherein above-mentioned the first current measurement circuit comprises:
Inductance, is coupled to the input end of above-mentioned voltage source and above-mentioned power rectifier module.
9. polyphase source supply device according to claim 4, is characterized in that, above-mentioned second voltage measurement circuit comprises:
The first resistance;
The second resistance, above-mentioned the second resistance and above-mentioned the first resistance coupled in series are in above-mentioned voltage source and ground connection, and the shared end of above-mentioned the second resistance and above-mentioned the first resistance is coupled to said temperature detecting unit.
10. polyphase source supply device according to claim 4, is characterized in that, above-mentioned the second current measurement circuit comprises:
Multiple the first resistance, one end of above-mentioned these the first resistance is respectively coupled to the above-mentioned current path in above-mentioned each phase voltage source that above-mentioned power rectifier module is exported;
Electric capacity, one end is coupled to the other end of above-mentioned these the first resistance, and the other end of above-mentioned electric capacity is coupled to a power input of above-mentioned microprocessor;
Multiple inductance, one end of above-mentioned inductance is respectively coupled to above-mentioned each phase voltage source that above-mentioned power rectifier module is exported, and the other end of above-mentioned inductance is coupled to the power input of above-mentioned current path and above-mentioned microprocessor; And
The second resistance, is coupled to shared node and the temperature detecting unit of these second resistance of this power input of above-mentioned microprocessor;
Wherein, said temperature detecting unit calculates the output current of above-mentioned power rectifier module according to the resistance value of the magnitude of voltage at above-mentioned electric capacity two ends and above-mentioned these the second resistance.
11. polyphase source supply devices according to claim 1, is characterized in that, wherein above-mentioned polyphase source supply device is arranged on motherboard.
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| TWI487256B (en) * | 2012-08-31 | 2015-06-01 | Giga Byte Tech Co Ltd | Multi-phase power supply device |
| CN103296867B (en) * | 2013-06-28 | 2015-07-15 | 成都芯源系统有限公司 | Multiphase switching converter, controller and control method thereof |
| CN104934933A (en) * | 2014-03-21 | 2015-09-23 | 鸿富锦精密工业（深圳）有限公司 | Polyphase power supply protection circuit |
| CN109687695B (en) * | 2017-10-19 | 2020-06-26 | 华硕电脑股份有限公司 | Power supply system |
| CN109460138A (en) * | 2018-11-06 | 2019-03-12 | 郑州云海信息技术有限公司 | A kind of multiphase power supply method of adjustment and device |
| CN109212434A (en) * | 2018-11-13 | 2019-01-15 | 乐山有研稀土新材料有限公司 | A kind of high-frequency direct-current switch power supply current-voltage-humiture monitoring device |
| CN112467965B (en) * | 2020-10-26 | 2022-05-06 | 苏州浪潮智能科技有限公司 | Temperature control method, device and system of multiphase power supply and storage medium |
| CN114461002A (en) * | 2020-11-09 | 2022-05-10 | 上海晶丰明源半导体股份有限公司 | Multi-phase voltage regulator and temperature balance control method thereof |
| CN112130654A (en) * | 2020-11-23 | 2020-12-25 | 常州微亿智造科技有限公司 | Low-voltage large-current multiphase power supply system for graphic processor |
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| CN2909335Y (en) * | 2006-05-30 | 2007-06-06 | 环隆电气股份有限公司 | Circuit for detecting real-time load current of central processor |
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