CN101737346A - Fan speed controlling device - Google Patents
Fan speed controlling device Download PDFInfo
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- CN101737346A CN101737346A CN200810176709A CN200810176709A CN101737346A CN 101737346 A CN101737346 A CN 101737346A CN 200810176709 A CN200810176709 A CN 200810176709A CN 200810176709 A CN200810176709 A CN 200810176709A CN 101737346 A CN101737346 A CN 101737346A
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- blower module
- controlling device
- management controller
- baseboard management
- fan speed
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Abstract
The invention discloses a fan speed controlling device, comprising a fan module, a baseboard management controller and a switching unit, wherein the baseboard management controller is electrically connected with the fan module to control the rotating speed of the fan module and outputs control signals according to the detected temperature; the switching unit is connected between the fan module and the baseboard management controller in a coupling manner and is connected with a working voltage; the switching unit receives the control signals output by the baseboard management controller, when the control signals enable energy, the working voltage is provided to the fan module; and when the control signals lose energy, the working voltage is cut off to close the fan module. Thereby, when the processing system of the server device is under a state of lower temperature, the power dissipation of the fan speed controlling device can be lowered.
Description
Technical field
The present invention relates to a kind of fan speed controlling device, particularly relate to a kind of fan speed controlling device of saving energy consumption.
Background technique
In the modern times, common people's custom utilizes computer as routine office work, communication contact, information browse, amusement and leisure, even the instrument of financial management, makes computer become the indispensable household electrical appliances of modern.Because computer uses aspect more and more wider, make computer processing speed constantly to promote, to promote the treatment effeciency and the function of computer, meet multi-level demand.And the temperature of the result that speed increases can cause the computer running time increases, and causes even make computer overheating and works as machine.For but the speed that makes computer increases and normal operation, so add fan speed controlling device in computer, do not work as machine so that computer can not produce because temperature is too high, wherein fan speed controlling device comprises blower module and blower module controller.
In computer installation, the number of blower module and blower module controller can be because the Consideration of platform, mechanism and blower module controller be different difference to some extent, but the basic structure of fan speed controlling device can be similar in all computer installations.Fig. 1 is system's block schematic diagram of conventional fan speed-controlling device.Please refer to Fig. 1, generally speaking, the electric power of the blower module 120 operating voltage VDD that uses can be 12V, and blower module controller 110 can see through the rotating speed that the duty of adjusting pulse-width signal SPWM is recently controlled blower module 120, and blower module 120 can be informed blower module controller 110 with the rotating speed of reality through tach signal STACH.With blower module controller 110, it can be according to temperature information that computer system provided or from the temperature information of sensor, learn each regional temperature in the computer installation, see through pairing blower module 120 rotating speeds of the control speed table temperature of looking for again, the dutycycle of adjusting pulse-width signal SPWM is with control blower module rotating speed.Therefore, when the temperature in the computer installation was low, blower module can turn round with the slow-speed of revolution.
With present situation,, cause the temperature in computer when running can be very high, so computer installation can dispose a plurality of blower modules 120 usually, to strengthen the heat dissipation potential of computer installation because the calculation function of computer is compared very powerfully in the past now.As mentioned above, be at computer installation under the state of start, blower module 120 can turn round with the slow-speed of revolution, but will never shut down.If computer installation (for example is low computing load) under the condition of some running, make the temperature of computer installation be in lower state, cause the part blower module 120 in computer installation to shut down, and can not make computer installation overheated and work as machine.At this moment, because computer installation still is in the open state, so blower modules 120 all in the computer installation can only turn round with minimum speed at most, and can't under specific operation condition, allow its blower module 120 partly shut down at computer installation, reduce the power consumption of computer installation.
Summary of the invention
The invention provides a kind of fan speed controlling device, can control the rotating speed of blower module and whether turn round.
The present invention proposes a kind of fan speed controlling device, and it comprises blower module, baseboard management controller and switching unit.Baseboard management controller is electrical connected blower module with the rotating speed of control blower module, and baseboard management controller is according to detected temperature output control signal.Switching unit is coupled between blower module and the baseboard management controller, and connects an operating voltage.Switching unit is accepted the control signal of baseboard management controller output, when control signal when enabling, provide operating voltage to blower module, when control signal was anergy, the cut-out operating voltage was to close blower module.
In one embodiment of this invention, this switching unit comprises the first transistor and transistor seconds.The grid of the first transistor couples baseboard management controller, receiving control signal, with and source electrode receive ground voltage.The grid of transistor seconds couples the drain electrode of the first transistor, and its drain electrode couples operating voltage, with and source electrode couple blower module, so that operating voltage to be provided.
In one embodiment of this invention, this first transistor and transistor seconds are respectively nmos pass transistor and PMOS transistor.
In one embodiment of this invention, be high level when this control signal enables, during anergy low level.
In one embodiment of this invention, this baseboard management controller sees through the rotating speed of the dutycycle control blower module of adjusting pulse-width signal, and baseboard management controller sees through integrated circuit interconnection, and (inter-integratedcircuit, IIC) interface couples server unit.
Comprehensive the above, fan speed controlling device of the present invention, its control unit decides whether enabling of control signal according to the temperature in the server unit, and switching unit provides operating voltage to arrive blower module in control signal when enabling; Otherwise, then cut off operating voltage to close blower module.By this, when the temperature temperature in the server unit is low, can close the running of blower module, to reduce the power consumption that fan speed controlling device was caused.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is system's block schematic diagram of traditional chiller system.
Fig. 2 is system's block schematic diagram of computer installation according to an embodiment of the invention.
Fig. 3 is system's block schematic diagram of Fig. 2 embodiment's cooling unit.
Fig. 4 is the circuit diagram of Fig. 3 embodiment's power unit.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its feature of fan speed controlling device and the effect thereof that foundation the present invention proposes, describe in detail as after.
Fig. 2 is system's block schematic diagram of server unit according to an embodiment of the invention.Please refer to Fig. 2, in the present embodiment, server unit 200 comprises processing system 210 and fan speed controlling device 220.Processing system 210 is in order to carrying out the processing capacity of server unit 200, and can produce different heat energy according to the difference of the operand of handling, and makes the temperature of processing system 210 to increase.Fan speed controlling device 220 is in order to the temperature of detecting processing system 210, and little big according to processing system 210 temperature, adjusts its heat dissipation potential, to provide processing system 210 suitable heat dissipation potential, reduces the temperature of processing system 210.And, fan speed controlling device 220 can see through integrated circuit interconnection (inter-integrated circuit, IIC) interface couples processing system 210, to learn the temperature of processing system 210 by the sensor on the processing system 210, or learn each regional temperature in the server unit 200, adjust the heat dissipation potential of fan speed controlling device 220 in view of the above.By this, processing system 210 can be because of not overheated and work as machine, and fan speed controlling device 220 can adjust its heat dissipation potential according to each regional temperature in the server unit 200, to avoid unnecessary power consumption.
Fig. 3 is system's block schematic diagram of Fig. 2 embodiment's fan speed controlling device.Please refer to Fig. 3, fan speed controlling device 220 comprises blower module 221, baseboard management controller 222 and switching unit 223.Baseboard management controller 222 couples blower module 221 and switching unit 223, and switching unit 223 couples operating voltage V
CCAnd blower module 221.Blower module 221 provides heat dissipation potential to learn the temperature of processing system 210 with reduction.Baseboard management controller 222 can see through the integrated circuit interconnection interface and couple processing system 210, with the temperature of foundation processing system 210, adjusts pulse-width signal S
PDuty recently control the rotating speed of blower module 221, use the heat dissipation potential of control blower module 221.And baseboard management controller 222 can see through the tach signal S that is transmitted by blower module 221
TLearn the rotating speed of blower module 221, whether the heat dissipation potential that is provided with affirmation blower module 221 is suitable.
On the other hand, whether baseboard management controller 222 can arrive a default value and decide control signal S according to the temperature of processing system 210
COLWhether for enable with.As control signal S
COLWhen enabling (for example for high level), switching unit 223 just can provide operating voltage V
CCTo heat dissipation element 221, make blower module 221 to operate normally; Otherwise, as control signal S
COLDuring for anergy (for example being low level), then switching unit 223 can cut off operating voltage V
CCProvide, make blower module 221 can close and can't operate.
In other words, when the temperature of processing system 210 is higher than default value, represent processing system 210 to need blower module 221 that heat dissipation potential is provided, this moment, switching unit 223 can provide operating voltage V
CCTo blower module 221, baseboard management controller 222 is then adjusted pulse-width signal S according to temperature
PDuty recently control the rotating speed of blower module 221, so that suitable heat dissipation potential to be provided, wherein this default value can be different because of the position of the design of server unit 200 and blower module 221 configurations.When the temperature of processing system 210 is lower than default value, represents processing system 210 not need blower module 221 that heat dissipation potential is provided, and can not make processing system 210 cause to work as machine because of overheated.This moment, baseboard management controller 222 can make control signal S
COLPresent disabled state, make switching unit 223 can cut off operating voltage V
CCProvide, to close blower module 221.By this, be in processing system 210 under the state of lower temperature, can close blower module 221, saving the power consumption that blower module 221 runnings are caused, and can not cause processing system 210 to work as machine.
Then, further switching unit 223 is described, its circuit can be as shown in Figure 4.Fig. 4 is the circuit diagram of Fig. 3 embodiment's switching unit.Please refer to Fig. 4, switching unit 223 comprises the first transistor M1 and transistor seconds M2, and wherein the first transistor M1 is a nmos pass transistor for example, and transistor seconds M2 for example is the PMOS transistor.The grid of the first transistor M1 couples baseboard management controller 222 to receive control signal S
COL, its source electrode receives ground voltage, and its drain electrode couples the grid of transistor seconds M2.The drain electrode of transistor seconds couples operating voltage V
CC, its source electrode couples blower module 221.
As control signal S
COLFor enabling time that is control signal S
COLBe high level, this moment, the first transistor M1 can present conducting, made the grid of transistor seconds M2 understand ground connection, and the related transistor seconds M2 that allows also presents conducting.At this moment, because transistor seconds M2 presents conducting, so blower module 221 can receive operating voltage V
CCThe electric power that is provided makes blower module heat dissipation element 221 to operate normally.As control signal S
COLDuring for anergy, that is control signal S
COLBe low level, this moment, the first transistor M1 can present not conducting, made the grid of transistor seconds M2 can present sky and connect and do not have electric current to flow through, and caused the transistor seconds M2 can't conducting.At this moment, because transistor seconds M2 presents not conducting, so blower module 221 can can't receive operating voltage V
CC, make blower module 221 to operate and present and close.
What deserves to be mentioned is that the circuit diagram of above-mentioned switching unit 223 is in order to explanation, related domain knows that usually the knowledgeable can see through the function that other circuit structure is finished foregoing circuit figure.In other words, as long as can be at control signal S
COL Heat dissipation element 221 can be run well when enabling, and at control signal S
COLClose heat dissipation element 221 during for anergy, promptly can be considered one of mode of execution of switching unit 223 among the present invention.And, above-mentioned control signal S
COLEnable with the level of anergy still in order to the running of explanation relative status, but not with the restriction embodiments of the invention.
Generally speaking, the Processing capacity of processing system 210 can be very powerful in the server unit 200 now, cause the height that heat that processing system 210 produced can be very when full load is moved, making in the server unit 200 must a plurality of blower module 221 of configuration, the temperature that can provide enough heat dissipation potentiaies to reduce processing system 210, wherein a plurality of blower modules 221 allocation position separately can be decided according to artificer or user's demand.And, meeting sensors configured on the processing system 210, make baseboard management controller 222 can control the rotating speed of blower module 221 according to processing system 210 each regional temperature, and can set up the control speed table of blower module 221 according to the rule of fuzzy control, wherein the quantity of processing system 210 upper sensors can be known the knowledgeable and difference usually according to user and related domain, and it mainly learns that the temperature of zones of different on the processing system 210 sets up the control speed table of blower module 221 seeing through sensor.For convenience of description, be that example explains at this with 5 blower modules, if fan speed controlling device is to realize with the fan speed controlling device 100 of Fig. 1, then its control fast table can be as shown in table 1.
Table 1
Then, if fan speed controlling device changes with Fig. 3 embodiment's fan speed controlling device 220 and realizes, then it is controlled fast table and can be revised as shown in table 2.
Table 2
By learning in the above-mentioned table 2, temperature at server unit 200 is under the very low state, embodiments of the invention can be closed blower module partly, reducing blower module in the power consumption that low-speed running was caused, and provide suitable normal heat dissipation potential according to the temperature of processing system.Wherein the classification of temperature the interval of corresponding true temperature, and the pairing pulse-width signal S of blower module rotating speed
PDutycycle, all can be because of artificer and user's difference difference to some extent, so present embodiment is not carefully being stated.
What deserves to be mentioned is, can learn that by the speed of the control shown in the table 2 table not all blower module all has pent possibility, so might utilize fan speed controlling device 220 to finish by pent blower module, all the other partly then utilize fan speed controlling device 100, the quantity that can save switching unit spare 223 by this to be saving cost, and can reach the function of demand that table 2 is desired.
Comprehensive the above, under the situation of single blower module, its baseboard management controller decides whether enabling of control signal according to the temperature of processing system in the server unit, and switching unit provides operating voltage to arrive blower module in control signal when enabling; Otherwise, then cut off the supply of operating voltage, to close blower module.By this, when the temperature of processing system is hanged down, can close the running of blower module, to reduce the power consumption that fan speed controlling device was caused.Under the situation of a plurality of blower modules, may utilize fan speed controlling device 220 to realize by pent blower module, all the other blower modules then utilize fan speed controlling device 100 to realize.By this, the quantity that can reduce switching unit to be to save cost, is in temperature when low in processing system simultaneously, can reduce the power consumption that fan speed controlling device causes.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the structure that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (6)
1. a fan speed controlling device has blower module, and is electrical connected to control the baseboard management controller of this blower module rotating speed with this blower module, it is characterized in that further comprising:
This baseboard management controller is exported a control signal according to detected temperature;
Switching unit is coupled between this blower module and this baseboard management controller, and connects an operating voltage;
This switching unit is accepted this control signal of this baseboard management controller output, when this control signal when enabling, provide this operating voltage to this blower module, when this control signal is anergy, cut off this operating voltage to close this blower module.
2. fan speed controlling device according to claim 1 is characterized in that this switching unit comprises:
The first transistor, its grid couples this baseboard management controller, and to receive this control signal, its source electrode receives ground voltage; And
Transistor seconds, its grid couples the drain electrode of this first transistor, and its drain electrode couples this operating voltage, and its source electrode couples this blower module, so that this operating voltage to be provided.
3. fan speed controlling device according to claim 2 is characterized in that its first transistor and transistor seconds are respectively nmos pass transistor and PMOS transistor.
4. fan speed controlling device as claimed in claim 3 is characterized in that when its control signal enables be high level, is low level during anergy.
5. fan speed controlling device according to claim 1 is characterized in that this baseboard management controller sees through the rotating speed that the dutycycle of adjusting pulse-width signal is controlled this blower module.
6. fan speed controlling device according to claim 1 is characterized in that this baseboard management controller sees through the integrated circuit interconnection interface and couples server unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810176709A CN101737346A (en) | 2008-11-13 | 2008-11-13 | Fan speed controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810176709A CN101737346A (en) | 2008-11-13 | 2008-11-13 | Fan speed controlling device |
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| Publication Number | Publication Date |
|---|---|
| CN101737346A true CN101737346A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810176709A Pending CN101737346A (en) | 2008-11-13 | 2008-11-13 | Fan speed controlling device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314206A (en) * | 2010-07-06 | 2012-01-11 | 英业达股份有限公司 | Fan speed control device for server |
| CN102480389A (en) * | 2010-11-30 | 2012-05-30 | 英业达股份有限公司 | Frame server system |
| CN102541107A (en) * | 2010-12-24 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | System and method for controlling humidity of server |
| CN104391555A (en) * | 2014-12-05 | 2015-03-04 | 浪潮集团有限公司 | Server fan speed adjusting method |
| CN104929967A (en) * | 2015-06-30 | 2015-09-23 | 青岛海尔股份有限公司 | Control circuit and control method of PWM blower fan used for refrigerator |
| CN106357198A (en) * | 2016-09-05 | 2017-01-25 | 广州途道信息科技有限公司 | General control method for steering engine and motor |
| TWI621933B (en) * | 2016-11-01 | 2018-04-21 | 奇鋐科技股份有限公司 | Multi-fan speed single-wire output rotating spedd monitor system and method |
-
2008
- 2008-11-13 CN CN200810176709A patent/CN101737346A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314206A (en) * | 2010-07-06 | 2012-01-11 | 英业达股份有限公司 | Fan speed control device for server |
| CN102480389A (en) * | 2010-11-30 | 2012-05-30 | 英业达股份有限公司 | Frame server system |
| CN102541107A (en) * | 2010-12-24 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | System and method for controlling humidity of server |
| CN102541107B (en) * | 2010-12-24 | 2016-02-17 | 赛恩倍吉科技顾问（深圳）有限公司 | Server moisture control system |
| CN104391555A (en) * | 2014-12-05 | 2015-03-04 | 浪潮集团有限公司 | Server fan speed adjusting method |
| CN104391555B (en) * | 2014-12-05 | 2017-08-25 | 浪潮集团有限公司 | A kind of server fan speed regulating method |
| CN104929967A (en) * | 2015-06-30 | 2015-09-23 | 青岛海尔股份有限公司 | Control circuit and control method of PWM blower fan used for refrigerator |
| CN106357198A (en) * | 2016-09-05 | 2017-01-25 | 广州途道信息科技有限公司 | General control method for steering engine and motor |
| TWI621933B (en) * | 2016-11-01 | 2018-04-21 | 奇鋐科技股份有限公司 | Multi-fan speed single-wire output rotating spedd monitor system and method |
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Open date: 20100616 |