CN101789751A - Speed regulation circuit for fan - Google Patents
Speed regulation circuit for fan Download PDFInfo
- Publication number
- CN101789751A CN101789751A CN201010102121A CN201010102121A CN101789751A CN 101789751 A CN101789751 A CN 101789751A CN 201010102121 A CN201010102121 A CN 201010102121A CN 201010102121 A CN201010102121 A CN 201010102121A CN 101789751 A CN101789751 A CN 101789751A
- Authority
- CN
- China
- Prior art keywords
- fan
- control switch
- switch array
- voltage
- corresponding relation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a speed regulation circuit for a fan, comprising a switch power supply, a logic chip and a control module, wherein the logic chip is used for querying correspondent control switch array based on the correspondence of temperature and control switch array and sending the control switch array information to the control module when obtaining environment temperature of the fan; the control module is used for regulating the control switch array of the speed regulation circuit of the fan based on control switch array information; and the switch power supply is used for obtaining an output voltage value based on regulated speed regulation circuit of the fan and outputting the output voltage to the fan. In the invention, the efficiency of speed regulation circuit of the fan is improved and the energy consumption is saved.
Description
Technical field
The present invention relates to circuit field, particularly relate to a kind of speed regulation circuit for fan.
Background technology
Along with the integrated level of circuit is more and more higher, especially when circuit working in high power, big voltage condition following time, it is outstanding relatively that the heat dissipation problem of circuit just becomes.
In order to solve the heat dissipation problem of circuitry, fan has obtained using more and more widely as a kind of effective heat radiation instrument.Wherein, the wind speed of fan is big, and radiating effect is strong, and still, wind speed also makes the noise power exponentially level in this very noisy source of fan increase, and the waste of the energy has also become greatly.Therefore, solve this contradiction of fan speed and noise power and also just become an important step in the circuit design.
In the fan speed-regulating scheme of prior art, by control MOS (Metal-Oxide-Semiconductor, Metal-oxide-semicondutor) switching voltage of pipe, make fan speed satisfy the ambient temperature of equipment work, promptly, export different voltage and realize fan speed-regulating by making metal-oxide-semiconductor be operated in different states.
Be illustrated in figure 1 as existing a kind of typical speed regulation circuit for fan, when fan work during at low-speed mode, power consumed is very big on metal-oxide-semiconductor, and the efficient of circuit is very low.
But, when the switching voltage that uses metal-oxide-semiconductor is adjusted the speed of fan, owing to be to come the conducting state of control switch to realize fan speed-regulating by the grid voltage of controlling MOS, requirement to metal-oxide-semiconductor is very high, simultaneously when the fan low-speed running, will on metal-oxide-semiconductor, consume very big power, system effectiveness is very low, and cost is also very high.
Summary of the invention
The invention provides a kind of speed regulation circuit for fan, to satisfy the fan speed-regulating demand under complication system and the complex environment.
In order to achieve the above object, the present invention proposes a kind of speed regulation circuit for fan, comprising: Switching Power Supply, logic chip and control module, wherein, stored the corresponding relation of temperature and control switch array in the described logic chip in advance;
Described logic chip is used for after the temperature that gets access to fan environment of living in, inquires about corresponding control switch array according to described temperature with the corresponding relation of control switch array, and the information of control switch array is notified to described control module;
Described control module is used for adjusting according to the information of control switch array the control switch array of described speed regulation circuit for fan;
Described Switching Power Supply is used for obtaining output voltage values according to adjusted speed regulation circuit for fan, and described output voltage is exported to fan.
Described speed regulation circuit for fan also comprises:
Temperature sensor is used to detect the temperature of fan environment of living in, and described temperature is notified to described logic chip.
The corresponding relation of described temperature and control switch array is specially the corresponding relation of temperature range and control switch array.
The corresponding relation of storing temperature and control switch array in advance in the described logic chip specifically comprises:
The corresponding relation of storing temperature and voltage in advance in described logic chip, and the corresponding relation of voltage and control switch array.
The corresponding relation of storing temperature and voltage in advance in described logic chip, and the corresponding relation of voltage and control switch array are specially:
The corresponding relation of storing temperature and voltage in a logic chip, and the corresponding relation of voltage and control switch array; Perhaps,
The corresponding relation of storing temperature and voltage in a logic chip, and in another logic chip the corresponding relation of storage voltage and control switch array.
When the corresponding relation of storing temperature and voltage in advance in described logic chip, and during the corresponding relation of voltage and control switch array,
Described logic chip, also be used for after the temperature that gets access to fan environment of living in, corresponding relation according to described temperature and voltage is inquired about corresponding voltage value, and inquires about corresponding control switch array according to this magnitude of voltage and voltage with the corresponding relation of control switch array.
Described control switch array is specially the array that at least one switch and corresponding parallel resistance are formed.
Described control module specifically is used for, and adjusts the array that switch and corresponding parallel resistance are formed according to the information of control switch array.
Described control module specifically is used for, and by opening described switch the parallel resistance of described switch correspondence is linked into described speed regulation circuit for fan, perhaps,
Make the parallel resistance of described switch correspondence can't be linked into described speed regulation circuit for fan by closing described switch.
Described Switching Power Supply is specially the chip of integrated MOS pipe, perhaps, and the chip of discrete metal-oxide-semiconductor; Described logic chip is specially the logic chip based on complex programmable logic device (CPLD).
Compared with prior art, the present invention has the following advantages:
Among the present invention, improve the efficient of speed regulation circuit for fan, saved energy consumption; And cheap, reduced the cost of complete machine; And can realize multipole speed governing easily, convenient, flexible, for the heat radiation of complicated large-scale equipment provides effective solution, especially in powerful device, need under the situation of high speed fan or a plurality of fans, advantage is more obvious at energy-saving and noise-reducing and aspect reducing cost.
Description of drawings
Fig. 1 is a typical speed regulation circuit for fan schematic diagram in the prior art;
Fig. 2 is the control appliance structure chart of a kind of fan speed-regulating of the present invention's proposition;
Fig. 3 is the control appliance structure chart of a kind of fan speed-regulating of proposition under the application scenarios of the present invention.
Embodiment
As shown in Figure 2, proposed a kind of speed regulation circuit for fan among the present invention, having comprised: temperature sensor 21, logic chip 22, control module 23 and Switching Power Supply 24, wherein, stored the corresponding relation of temperature and control switch array in the described logic chip 22 in advance.And in speed regulation circuit for fan provided by the present invention, described Switching Power Supply 24 is specially the chip of integrated MOS pipe, perhaps, and the chip of discrete metal-oxide-semiconductor; Described logic chip 22 is specially the logic chip based on CPLD (Complex Programmable Logic Device, CPLD).
In this speed regulation circuit for fan
Described logic chip 22 is used for after the temperature that gets access to fan environment of living in, inquires about corresponding control switch array according to described temperature with the corresponding relation of control switch array, and the information of control switch array is notified to described control module.
Concrete, after receiving the temperature information that reports from temperature sensor 21, according to this temperature information, and the corresponding relation of inquiry temperature and control switch array, promptly can inquire corresponding control switch array.Wherein, the corresponding relation of described temperature and control switch array can be the corresponding relation of a temperature range and control switch array, perhaps directly is the corresponding relation of temperature and control switch array.
For example, the temperature information that reports when temperature sensor 21 is 40 °, and the corresponding relation of temperature and control switch array is during for (30 °-50 °) control switch array that corresponding K1 opens, K2 opens closes with K3, then according to 40 ° of temperature informations, can inquire corresponding control switch array is that K1 opens, K2 opens and K3 closes.
Certainly, in actual applications, be not limited to the only corresponding relation of storing temperature and control switch array, can also be according to actual needs, the corresponding relation of storing temperature and voltage in advance in described logic chip, and the corresponding relation of voltage and control switch array; Promptly can adopt the corresponding relation of mode storing temperature and control switch array arbitrarily.
Be understandable that, at the corresponding relation of storing temperature and voltage, and during the corresponding relation of voltage and control switch array, can be in a logic chip corresponding relation of storing temperature and voltage, and the corresponding relation of voltage and control switch array; Perhaps, the corresponding relation of storing temperature and voltage in a logic chip, and in another logic chip the corresponding relation of storage voltage and control switch array.
Further, when the corresponding relation of storing temperature and voltage in advance in described logic chip, and during the corresponding relation of voltage and control switch array, described logic chip 22, also be used for after the temperature that gets access to fan environment of living in, corresponding relation according to described temperature and voltage is inquired about corresponding voltage value, and inquires about corresponding control switch array according to this magnitude of voltage and voltage with the corresponding relation of control switch array.
Concrete, after receiving the temperature information that reports from temperature sensor 21, according to this temperature information, and the corresponding relation of inquiry temperature and control switch array, promptly can inquire corresponding voltage value.Wherein, the corresponding relation of this temperature and voltage can be the corresponding relation of temperature range and voltage, perhaps directly is the corresponding relation of temperature and voltage.For example, the temperature information that reports when temperature sensor 21 is 40 °, and temperature is when with the corresponding relation of voltage being (30 °-50 °) corresponding 8V, and then can inquire corresponding voltage value is 8V.Further, according to this magnitude of voltage, and voltage can be inquired about corresponding control switch array with the corresponding relation of control switch array.For example, voltage and the corresponding relation of control switch array are that the corresponding control switch array of 8V voltage is that K1 opens, when K2 opens and closes with K3, when knowing that magnitude of voltage is 8V, then can inquire corresponding control switch array is that K1 opens, K2 opens and K3 closes.
Described control module 23 is used for adjusting according to the information of control switch array the control switch array of described speed regulation circuit for fan.It is the partial circuit that control module 23 is formed according to the information adjustment switch and the corresponding parallel resistance of control switch array.Wherein, because described logic chip 22 also is used for when inquiring corresponding control switch array, the information of control switch array is notified to described control module 23, at this moment, state the control switch array that control module 23 can be adjusted described speed regulation circuit for fan according to the information of this control switch array.
It should be noted that, in this speed regulation circuit for fan, at least one switch and corresponding parallel resistance have also been comprised, and described control switch array is specially the array that the parallel resistance of at least one switch and correspondence is formed, wherein, the composition of the parallel resistance of this switch and correspondence can be adjusted according to actual needs, and to comprise that three switches of K1, K2 and K3 and corresponding parallel resistance are example, then this control switch array is this K1, K2 and three switches of K3 and corresponding parallel resistance.
When the Query Result of described logic chip 22 for corresponding control switch array is that K1 opens, when K2 opens and closes with K3, then control module 23 need be opened K1 and K2, and K3 is closed.
Be understandable that, described control module 23 can be linked into described speed regulation circuit for fan with the parallel resistance of described switch correspondence by opening described switch, perhaps, can make the parallel resistance of described switch correspondence can't be linked into described speed regulation circuit for fan by closing described switch.
Described Switching Power Supply 24 is used for obtaining output voltage values according to adjusted speed regulation circuit for fan, and described output voltage is exported to fan.
Concrete, after control module 23 is adjusted speed regulation circuit for fan, can access the needed magnitude of voltage of fan, promptly Switching Power Supply 24 can access the needed output voltage values of fan, and described output voltage is exported to fan.
It should be noted that, because control module 23 is to adjust the control switch array of speed regulation circuit for fan according to the corresponding relation of temperature and control switch array, therefore, the needs that the output voltage values of the speed regulation circuit for fan of this moment can satisfied temperature, thus can effectively adjust fan speed-regulating.Be understandable that when the corresponding relation of storing temperature and voltage in advance in logic chip, and during the corresponding relation of voltage and control switch array, then the output voltage values of speed regulation circuit for fan is that the magnitude of voltage that obtains with the inquiry according to temperature is corresponding.
For technical scheme provided by the invention more clearly is described, the present invention is described in detail below in conjunction with application scenarios shown in Figure 3.Wherein, Fig. 3 is a kind of speed regulation circuit for fan, in this speed regulation circuit for fan, Switching Power Supply (perhaps switching power source chip), logic chip (not embodying in Fig. 3), temperature sensor (not embodying in Fig. 3) and control module (not embodying in Fig. 3) are the necessary functional entitys of control fan speed-regulating, and other devices such as the electric capacity among Fig. 3, resistance, switch can be selected arbitrarily according to different circuit conditions, and promptly the composition structure of different circuit has nothing in common with each other.
Switching power source chip can be the chip of integrated couple of MOS or the chip of discrete metal-oxide-semiconductor, and wherein, what use in the circuit shown in Figure 3 is the chip of integrated couple of MOS; Control module can be selected according to actual conditions, for example, CPU (Central Processing Unit, CPU) can be chosen as control module (promptly using CPU to carry out the required function of control module); Logic chip can be based on the logic chip of CPLD, certainly, can also select the logic chip of other types in the use, does not repeat them here; Temperature sensor is used for the problem of testing environment, can use the functional unit that other can the testing environment temperature to substitute in the practical application.
The principle of the speed regulation circuit for fan under the application scenarios of the present invention as shown in Figure 3, wherein, U1 is a switching power source chip, L1 and C3 are filter inductance and filter capacitor, C1 and C2 are electric capacity, R1 and R2 form the dividing potential drop feedback circuit, and 1, and 2, and 3 and three corresponding K switch 1, K2 and K3 be the speed regulating control unit (should with under the scene with three parallel resistances, parallel resistance of each switch control is that example describes, and the parallel resistance that the number of parallel resistance and each switch are controlled can be adjusted according to actual needs), the output Vout of circuit is used for powering to fan.Among the present invention, and 1, and 2, and 3 and three corresponding K switch 1, the part that K2 and K3 formed be the control switch array.
Need to prove, use this speed regulation circuit for fan before the fan power supply, need be in logic chip the corresponding relation of the control switch array of storing temperature and this speed regulation circuit for fan in advance.Wherein, can be according to the corresponding relation of information stores temperature such as practical experience, test data and control switch array.
For example, when the temperature of fan environment of living in is 40 °, needing rotation speed of the fan is the normal operation that 1000 commentaries on classics/s can guarantee equipment, and need provide the voltage of 8V when being 1000 commentaries on classics/s for rotation speed of the fan, and in order to make speed regulation circuit for fan that the output voltage of 8V can be provided, need make that the K switch 1 of fan in the alignment circuit opened, K switch 2 is opened, K switch 3 is closed, promptly will be in logic chip corresponding relation that 40 ° of storing temperatures are opened with control switch array K1 in advance, K2 opens closes with K3; Perhaps, corresponding relation and the voltage 8V of 40 ° of storing temperatures and voltage 8V and corresponding relation that control switch array K1 opens, K2 opens closes with K3 in advance in logic chip.
According to above-mentioned processing procedure, promptly can in logic chip, store the corresponding relation of all temperature and control switch array in advance, and since during actual the use variation of temperature very big, can store the corresponding relation of a temperature range and control switch array in the practical application.For example, when R1=10K Europe, R2=1K Europe, and 1=27K Europe, and 2=3.9K Europe, and 3=8.06K Europe, during the reference voltage VSNS=0.8V of switching power source chip U1, then when K1K2K3=000, output voltage V out=8.8V is when K1K2K3=101, output voltage V out=10V, when K1K2K3=110, output voltage V out=11.2V, other magnitudes of voltage can be calculated according to formula (1):
Vout=(R1+R2 ') * VSNS/R2 ' formula (1)
Wherein, R2 ' is R2 and according to combinations K1/K2/K3 decision and 1/ and 2/ and 3.
Based on above-mentioned situation, if the temperature of fan environment of living in is (45 °-50 °), when the voltage of 10V need be provided, because the pairing control switch array of 10V voltage is K1K2K3=101, promptly need be in logic chip the corresponding relation of 45 °-50 ° of storing temperatures and control switch array K1K2K3=101 in advance.
Concrete, temperature according to fan environment of living in, temperature sensor can be notified to logic chip with corresponding temperature value, and owing to stored the corresponding relation of temperature and control switch array in this logic chip, be that logic chip can be inquired about corresponding control switch array, and adjust the control switch array of this speed regulation circuit for fan by control module according to this control switch array.
The control switch array of the correspondence that the inquiry of logic-based chip obtains, control module can be adjusted the control switch array of speed regulation circuit for fan, be specially Push And Release by control switch K1, K2 and K3, will and 1, and 2, and 3 be linked into speed regulation circuit for fan and realize.For example, when control module was closed K1, then also 1 (parallel resistance 1) was linked into speed regulation circuit for fan, and when control module was opened K1, then also 1 (parallel resistance 1) can't be linked into speed regulation circuit for fan.
As can be seen, be parallel on the divider resistance R2 by the parallel resistance and 1 and/or also 2 and/or also 3 that correspondence is connected, can access different output voltage V out, promptly pass through the different conducting states of K1, K2 and K3, adjust the feedback voltage ratio, obtain different output voltage V out, thereby reach the purpose of fan speed-regulating.For example, if it is 50 ° that temperature sensor detects the temperature of fan environment of living in, logic chip inquires control switch array K1K2K3=101, and be adjusted into 101 with state with K switch 1, K2 and K3 by control module, thereby make output voltage V out=10V, and the voltage of 10V is exported to fan, thereby reach the purpose of fan speed-regulating by switching power source chip.
Among the present invention, the efficient of speed regulation circuit for fan is by the efficient decision of Switching Power Supply, and general efficient can reach more than 90% at least, compares with the conventional fan alignment circuit, and efficient has had very large raising.
For the technological merit that speed regulation circuit for fan had among the present invention more clearly is described, be further detailed below in conjunction with a concrete example.If fan work electric current when 7V is 0.1A, input supply voltage is 12V.
For the situation of the voltage control speed governing of use metal-oxide-semiconductor of the prior art, fan 7V work, when input supply voltage was 12V, then the pressure drop on metal-oxide-semiconductor was 5V, total power consumption is 0.1A * (7V+5V)=1.2W.And the speed regulation circuit for fan that provides among the present invention, fan 7V work, when input supply voltage was 12V, if the efficient of Switching Power Supply work is 95%, then total power consumption was 0.1A * 7V/0.95=0.74W.
By both contrast as can be seen, speed regulation circuit for fan provided by the invention compare the situation of voltage control speed governing of metal-oxide-semiconductor low in energy consumption 0.46W, and from efficient, the scheme efficient of the voltage control speed governing of metal-oxide-semiconductor has only 58%, the scheme of speed regulation circuit for fan provided by the invention can reach 95%, thereby significantly reduced power consumption, and improved efficient.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1. a speed regulation circuit for fan is characterized in that, comprising: Switching Power Supply, logic chip and control module, wherein, stored the corresponding relation of temperature and control switch array in the described logic chip in advance;
Described logic chip is used for after the temperature that gets access to fan environment of living in, inquires about corresponding control switch array according to described temperature with the corresponding relation of control switch array, and the information of control switch array is notified to described control module;
Described control module is used for adjusting according to the information of control switch array the control switch array of described speed regulation circuit for fan;
Described Switching Power Supply is used for obtaining output voltage values according to adjusted speed regulation circuit for fan, and described output voltage is exported to fan.
2. speed regulation circuit for fan as claimed in claim 1 is characterized in that, also comprises:
Temperature sensor is used to detect the temperature of fan environment of living in, and described temperature is notified to described logic chip.
3. speed regulation circuit for fan as claimed in claim 1 is characterized in that, the corresponding relation of described temperature and control switch array is specially the corresponding relation of temperature range and control switch array.
4. speed regulation circuit for fan as claimed in claim 1 is characterized in that, the corresponding relation of storing temperature and control switch array in advance in the described logic chip specifically comprises:
The corresponding relation of storing temperature and voltage in advance in described logic chip, and the corresponding relation of voltage and control switch array.
5. speed regulation circuit for fan as claimed in claim 4 is characterized in that, the corresponding relation of storing temperature and voltage in advance in described logic chip, and the corresponding relation of voltage and control switch array are specially:
The corresponding relation of storing temperature and voltage in a logic chip, and the corresponding relation of voltage and control switch array; Perhaps,
The corresponding relation of storing temperature and voltage in a logic chip, and in another logic chip the corresponding relation of storage voltage and control switch array.
6. speed regulation circuit for fan as claimed in claim 4 is characterized in that, when the corresponding relation of storing temperature and voltage in advance in described logic chip, and during the corresponding relation of voltage and control switch array,
Described logic chip, also be used for after the temperature that gets access to fan environment of living in, corresponding relation according to described temperature and voltage is inquired about corresponding voltage value, and inquires about corresponding control switch array according to this magnitude of voltage and voltage with the corresponding relation of control switch array.
7. as each described speed regulation circuit for fan of claim 1-6, it is characterized in that described control switch array is specially the array that at least one switch and corresponding parallel resistance are formed.
8. speed regulation circuit for fan as claimed in claim 7 is characterized in that,
Described control module specifically is used for, and adjusts the array that switch and corresponding parallel resistance are formed according to the information of control switch array.
9. speed regulation circuit for fan as claimed in claim 8 is characterized in that,
Described control module specifically is used for, and by opening described switch the parallel resistance of described switch correspondence is linked into described speed regulation circuit for fan, perhaps,
Make the parallel resistance of described switch correspondence can't be linked into described speed regulation circuit for fan by closing described switch.
10. as each described speed regulation circuit for fan of claim 1-6, it is characterized in that described Switching Power Supply is specially the chip of integrated MOS pipe, perhaps, the chip of discrete metal-oxide-semiconductor; Described logic chip is specially the logic chip based on complex programmable logic device (CPLD).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101021219A CN101789751B (en) | 2010-01-28 | 2010-01-28 | Speed regulation circuit for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101021219A CN101789751B (en) | 2010-01-28 | 2010-01-28 | Speed regulation circuit for fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101789751A true CN101789751A (en) | 2010-07-28 |
| CN101789751B CN101789751B (en) | 2013-01-16 |
Family
ID=42532834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101021219A Active CN101789751B (en) | 2010-01-28 | 2010-01-28 | Speed regulation circuit for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101789751B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963882A (en) * | 2015-07-07 | 2015-10-07 | 浙江宇视科技有限公司 | Fan module control method and system in dual-control storage system |
| CN105824396A (en) * | 2016-03-30 | 2016-08-03 | 山东超越数控电子有限公司 | Desktop type computer intelligent control and management method |
| CN111324503A (en) * | 2018-12-17 | 2020-06-23 | 中兴通讯股份有限公司 | Machine frame management device, method and computer readable storage medium |
| CN111624912A (en) * | 2020-05-22 | 2020-09-04 | 广州裕芯电子科技有限公司 | Portable fan control chip, circuit and method |
| CN113056178A (en) * | 2021-03-25 | 2021-06-29 | 广东海悟科技有限公司 | New trend device and BBU cabinet |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043681U (en) * | 1989-01-18 | 1989-08-30 | 叶一心 | Automatic speed-regulator for controlling the temp. of the electric fan |
| US6161764A (en) * | 1999-01-22 | 2000-12-19 | Honeywell International Inc. | Enhanced economizer controller |
| CN100570159C (en) * | 2002-03-21 | 2009-12-16 | 华为技术有限公司 | Method for reducing noise of equipments based on rotation speed of the fan control |
| CN100403202C (en) * | 2003-07-28 | 2008-07-16 | 华为技术有限公司 | Fan rotating speed controlling method and apparatus |
| CN101349926B (en) * | 2008-09-04 | 2011-04-13 | 华为技术有限公司 | Method and apparatus for adjusting fan rotary speed |
-
2010
- 2010-01-28 CN CN2010101021219A patent/CN101789751B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963882A (en) * | 2015-07-07 | 2015-10-07 | 浙江宇视科技有限公司 | Fan module control method and system in dual-control storage system |
| CN104963882B (en) * | 2015-07-07 | 2017-08-15 | 浙江宇视科技有限公司 | Blower module control method and system in a kind of dual control storage system |
| CN105824396A (en) * | 2016-03-30 | 2016-08-03 | 山东超越数控电子有限公司 | Desktop type computer intelligent control and management method |
| CN111324503A (en) * | 2018-12-17 | 2020-06-23 | 中兴通讯股份有限公司 | Machine frame management device, method and computer readable storage medium |
| CN111324503B (en) * | 2018-12-17 | 2022-11-04 | 中兴通讯股份有限公司 | Machine frame management device, method and computer readable storage medium |
| CN111624912A (en) * | 2020-05-22 | 2020-09-04 | 广州裕芯电子科技有限公司 | Portable fan control chip, circuit and method |
| CN113056178A (en) * | 2021-03-25 | 2021-06-29 | 广东海悟科技有限公司 | New trend device and BBU cabinet |
| CN113056178B (en) * | 2021-03-25 | 2023-11-24 | 广东海悟科技有限公司 | Fresh air device and BBU cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101789751B (en) | 2013-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101789751B (en) | Speed regulation circuit for fan | |
| CN110778517B (en) | Fan control method, device and storage medium | |
| WO2018085448A1 (en) | Feedback control for efficient high-speed battery charging | |
| CN100479306C (en) | Device for optimizing charge pump of integrated circuit and method therefor | |
| CN100440718C (en) | Speed regulating fan system with fault-tolerant capacity | |
| CN104571439A (en) | Heat dissipation power consumption optimization regulation and control method compatible with environment temperature speed regulation | |
| CN106438433B (en) | The control method for fan and device of a kind of inverter | |
| CN101651335B (en) | Electronic equipment protection device and electronic equipment | |
| CN103486070A (en) | Fan adjustment and control testing method for optimizing power consumption | |
| CN105573664A (en) | Multi-channel memory system and related power management method | |
| US7847510B2 (en) | Controlling switching of thyristors to reduce power loss in variable speed motor | |
| Du et al. | Lifetime estimation for IGBT modules in wind turbine power converter system considering ambient temperature | |
| WO2019049246A1 (en) | Power conversion device | |
| CN105430828A (en) | Led drive device | |
| Fuada et al. | The experimental evaluation of simple bidirectional DC/DC converter with snubber compensation for electric vehicle application | |
| WO2012009879A1 (en) | Cassette network device and fan control method thereof | |
| CN204419661U (en) | A kind of multi-mode fan control circuitry, sink and electronic equipment | |
| CN102111066B (en) | Energy-saving electronic device as well as power control system of cooling fan and control method | |
| CN203655678U (en) | Fan speed regulating circuit, cooling device and household electric appliance | |
| CN102063169A (en) | Power supply management device and method | |
| CN105205015A (en) | Data storage method and storage equipment | |
| CN102104178B (en) | Intelligent control device and method for cooling system | |
| CN111190469A (en) | Intelligent frequency conversion system | |
| CN2828890Y (en) | Fan speed regulating control circuit | |
| CN111176401A (en) | Multi-directional feedback intelligent frequency conversion system suitable for super computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |