CN103821745B - Fan control device - Google Patents
Fan control device Download PDFInfo
- Publication number
- CN103821745B CN103821745B CN201210465181.6A CN201210465181A CN103821745B CN 103821745 B CN103821745 B CN 103821745B CN 201210465181 A CN201210465181 A CN 201210465181A CN 103821745 B CN103821745 B CN 103821745B
- Authority
- CN
- China
- Prior art keywords
- modulating signal
- fan
- signal
- working state
- unit
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/85—Starting
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Direct Current Motors (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A kind of fan control device, it is adaptable to control at least one fan.This fan control device includes modulating signal unit and shielding cell.Modulating signal unit is in order to provide modulating signal and working state signal.Shielding cell couples modulating signal unit and at least one fan, in order to receive standby voltage, working state signal and modulating signal, and according to standby voltage and working state signal, to cover modulating signal or modulating signal is sent at least one fan.
Description
Technical field
The present invention relates to a kind of device that controls, particularly a kind of fan control device.
Background technology
In general, major part server or computer system all can install heat abstractor, such as fan and radiating module, with
Produced high temperature when reducing the electronic component work in server or computer system, to increase the work efficiency of each electronic component
And promote the operational effectiveness of entirety.Wherein, radiating module generally utilizes the mode of conduction of heat, when directly absorbing electronic component work
Produced heat energy, then produce cross-ventilation through the operating of fan, pass through air with the heat energy absorbed by radiating module
The heat exchange of convection current and be dissipated to the external world.
Control fan operating on, it will usually utilize a pulse wave width modulation (Pulse WidthModulation,
PWM) generator, to produce the operating of a pulse wave width modulation signal control fan.When server or computer system start, arteries and veins
Wave width modulation generator can enter initial phase and carry out initializing set, just can produce the pulse wave width modulation letter of correspondence
Number, operate with the rotating speed controlling fan generation corresponding.
But, before pulse wave width modulation generator enters initial phase and is not fully complete initialization, pulse wave width modulation
Pulse wave width modulation signal produced by generator is all high logic level, will make fan the most i.e. with the side rotated at full speed
Formula operates.So, it will cause the situation of waste power supply to occur.Therefore, for the control of fan, still has improvement
Space.
Summary of the invention
The technical problem to be solved is to provide a kind of fan control device, at the beginning of entering at modulating signal unit
Stage beginning and before being not fully complete initial phase, fan will not rotate at full speed, to avoid the situation wasting power supply to occur, and increases
The convenience used.
To achieve these goals, the invention provides a kind of fan control device, it is adaptable to control at least one fan, its
In, this fan control device includes:
One modulating signal unit, in order to provide a modulating signal and a working state signal；And
One shielding cell, couples this modulating signal unit and this at least one fan, in order to receive a standby voltage, this work
Status signal and this modulating signal, and according to this standby voltage and this working state signal, maybe should covering this modulating signal
Modulating signal is sent to this at least one fan.
Above-mentioned fan control device, wherein, when this modulating signal unit is not fully complete initialization, this modulating signal unit
This working state signal and this modulation unit of one high logic level, then this shielding cell being somebody's turn to do according to this high logic level are provided
Working state signal, covers this modulating signal of this high logic level.
Above-mentioned fan control device, wherein, when this modulating signal unit completes to initialize, this modulating signal unit carries
For this working state signal and this modulating signal of a pulse wave form of a low logic level, then this shielding cell is low according to this
This working state signal of logic level, to be sent to this at least one fan by this modulating signal of this pulse wave form.
Above-mentioned fan control device, wherein, this modulating signal unit passes through a universal input output connecting pin, it is provided that this work
Make status signal.
Above-mentioned fan control device, wherein, this shielding cell includes:
One electric crystal, has one first end, one second end and one the 3rd end, and it is standby that this first end of this electric crystal receives this
Voltage and this working state signal, this second end of this electric crystal receives this modulating signal, and the 3rd end of this electric crystal couples
Earth terminal.
Above-mentioned fan control device, wherein, also includes a power supply unit, couples this shielding cell, in order to provide this
Standby voltage, and this power supply unit is also coupled to this modulation unit and this at least one fan, with provide this modulating signal unit with
A running voltage needed for this at least one fan.
The method have technical effect that:
The fan control device of the present invention, it is provided according to standby voltage and modulating signal unit by shielding cell
Working state signal, to determine the modulating signal that mask signal modulation unit is provided, or is provided modulating signal unit
Modulating signal be sent to fan.Consequently, it is possible to enter initial phase at modulating signal unit and be not fully complete initial phase
Before, fan will not rotate at full speed, to avoid the situation wasting power supply to occur, and increases the convenience of use.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the fan control device of the present invention；
Fig. 2 is the schematic diagram of another fan control device of the present invention.
Wherein, reference
100,200 fan control device
110 modulating signal unit
120 shielding cells
170_1～170_N fan
210 power supply units
220 contacts
VPWM modulating signal
VWS working state signal
VS standby voltage
VCC running voltage
M electric crystal
Detailed description of the invention
Structural principle and operation principle to the present invention are described in detail below in conjunction with the accompanying drawings:
Set forth below for each embodiment in, same or analogous element will be represented with identical label.
Refer to shown in Fig. 1, it is the schematic diagram of fan control device of the present invention.The fan control device of the present embodiment
100 are applicable to control fan 170_1～170_N, and fan 170_1～170_N is such as configured at a server or a computer system
In system, in order to dispel the heat server or computer system, wherein N is the positive integer more than 1.
Fan control device 100 includes modulating signal unit 110 and shielding cell 120.Modulating signal unit 110 is in order to carry
For modulating signal VPWM and working state signal VWS.Wherein, modulating signal unit 110 for example, pulse wave width modulation (Pulse
Width Modulation, PWM) generator, to provide low logic level, high logic level or the modulating signal of pulse wave form
VWPM。
In the present embodiment, when modulating signal unit 110 has just been started working and has entered initial phase, modulating signal list
Unit 110 can provide the working state signal VWS of the highest logic level, and provides the modulating signal VPWM of high logic level.When
When modulating signal unit 110 completes initial phase, the working state signal VWS of modulating signal unit 110 meeting low logic level,
And the modulating signal VPWM of such as pulse wave form is provided.
Shielding cell 120 couples modulating signal unit 110 and fan 170_1～170_N, in order to receive standby voltage VS,
Working state signal VWS and modulating signal VPWM, in order to according to standby voltage VS and working state signal VWS, to cover modulation
Signal VPWM or modulating signal VPWM is sent to fan 170_1～170_N.
For example, as standby voltage VS and working state signal VWS, one of them is high logic level, or treats electromechanics
When pressure VS and working state signal VWS is all high logic level, then shielding cell 120 can cover the modulating signal of high logic level
VPWM, that is the modulating signal VPWM of high logic level will not be sent to fan 170_1～170_N by shielding cell 120.
Owing to shielding cell 120 can cover the modulating signal VPWM of high logic level, therefore shielding cell 120 such as can carry
Supply the signal of a low logic level to fan 170_1～170_N so that fan 170_1～170_N transports with minimum speed
Turn.
On the other hand, when working state signal VWS is low logic level, shielding cell 120 can be by modulating signal VPWM
It is sent to fan 170_1～170_N so that fan 170_1～170_N is according to the control of modulating signal VPWM, and produces correspondence
Rotating speed operate.Consequently, it is possible to before modulating signal unit 110 is not fully complete initial phase, fan 170_1～170_N
Will not rotate at full speed, to avoid the situation wasting power supply to occur, and increase the convenience of use.
In the present embodiment, modulating signal unit 110 such as has a universal input output (GeneralPurpose
Input Output, GPIO) pin, and modulating signal unit 110 produces duty letter through this universal input output connecting pin
Number VWS.Further, aforementioned standby voltage VS for example, P3V3_STBY.
Refer to shown in Fig. 2, it is the schematic diagram of another fan control device of the present invention.The fan control of the present embodiment
Device 200 is applicable to control fan 170_1～170_N.Fan control device 200 includes modulating signal unit 110, shielding cell
120 with power supply unit 210.Wherein, modulating signal unit 110 and the relation that couples of shielding cell 120 and associative operation thereof, can
With reference to the explanation of the embodiment of Fig. 1, therefore do not repeat them here.
Power supply unit 210 is in order to provide running voltage VCC and standby voltage VS, and wherein running voltage VCC is that signal is adjusted
Become running voltage required when unit 110 works with fan 170_1～170_N.
Shielding cell 120 includes electric crystal M.Electric crystal M has the first end, the second end and the 3rd end, the first of electric crystal M
End receives second end of standby voltage VS and working state signal VWS, electric crystal M and receives the of modulating signal VPWM, electric crystal M
Three ends couple earth terminal GND.
In the present embodiment, electric crystal M for example, N-type electric crystal.Wherein, first end of electric crystal M for example, N-type electricity is brilliant
The gate terminal of body, the drain end of second end of electric crystal M for example, N-type electric crystal, the 3rd end for example, N-type electricity of electric crystal M
The source terminal of crystal.But the invention is not restricted to this, electric crystal M also can be p-type electric crystal or other kinds of electric crystal, the most double
Carrier junction transistors and Junction fet etc..
First, when power supply unit 210 only provides standby voltage VS (such as P3V3_STBY), and this standby voltage VS
The first end (i.e. gate terminal) that can provide to electric crystal M so that electric crystal M turns on, then contact 220 is connected to earth terminal GND.
Owing to contact 220 is connected to earth terminal GND, therefore shielding cell 120 can cover modulating signal VPWM, that is modulation
Signal VPWM will not be sent to fan 170_1～170_N, and shielding cell 120 produces such as corresponding the low of earth terminal GND and patrols
The signal of volume level is to fan 170_1～170_N.Now, power supply unit 210 does not provides running voltage VCC to fan yet
170_1～170_N, then fan 170_1～170_N also will not operate.
Then, power supply unit 210 provides running voltage VCC, in order to fan control device 100 and fan 170_1～
170_N can start working.When fan control device 100 is started working, modulating signal unit 110 can be introduced into initialization rank
Section, and carry out initializing set.
At initial phase, modulating signal unit 110 can provide the working state signal VWS of high logic level to believe with modulation
Number VWPM, and the working state signal VWS and modulating signal VWPM of high logic level can provide the electricity to shielding cell 120 respectively
First end (i.e. gate terminal) of crystal M and second end of contact 220(such as electric crystal M, i.e. source terminal).
Then, the working state signal VWS received due to first end of electric crystal M and standby voltage VS is high logic
Level, then electric crystal M conducting so that contact 220 is coupled to earth terminal GND.So, shielding cell 120 can cover high logic standard
The modulating signal VPWM of position, that is the modulating signal VPWM of high logic level will not be sent to fan 170_1～170_N.
At the same time, shielding cell 120 produces the signal of low logic level of such as corresponding earth terminal GND to fan 170_
1～170_N so that fan 170_1～the signal of 170_N correspondence low logic level, and be operated with minimum speed.
Afterwards, when modulating signal unit 110 completes initial phase, modulating signal unit 110 such as provides low logic
The working state signal VPS of level and the modulating signal VPWM of pulse wave form, and the working state signal of low logic level
The modulating signal VPWM of VPS and pulse wave form can provide the first end (i.e. gate of the electric crystal M to shielding cell 120 respectively
End) and second end of contact 220(such as electric crystal M, i.e. source terminal).
Now, the working state signal VWS received due to first end of electric crystal M is low logic level, then electric crystal M
It is not turned on so that contact 220 will not be coupled to earth terminal GND.So, the modulation of pulse wave form will be believed by shielding cell 120
Number VPWM is sent to fan 170_1～170_N so that fan 170_1～170_N is according to the control of modulating signal VPWM, and produces
Raw corresponding rotating speed operates.
Consequently, it is possible to before modulating signal unit 110 is not fully complete initial phase, fan 170_1～170_N will not be at full speed
Rotate, to avoid the situation wasting power supply to occur, and increase the convenience of use.
The fan control device of embodiments of the invention, it is by shielding cell foundation standby voltage and modulating signal unit
The working state signal provided, to determine the modulating signal that mask signal modulation unit is provided, or by modulating signal list
The modulating signal that unit is provided is sent to fan.Consequently, it is possible at the beginning of modulating signal unit enters initial phase and is not fully complete
Before stage beginning, fan will not rotate at full speed, to avoid the situation wasting power supply to occur, and increases the convenience of use.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, ripe
Know those skilled in the art to work as and can make various corresponding change and deformation according to the present invention, but these change accordingly and become
Shape all should belong to the protection domain of appended claims of the invention.
Claims (6)
1. a fan control device, it is adaptable to control at least one fan, it is characterised in that this fan control device includes:
One modulating signal unit, in order to provide a modulating signal and a working state signal；And
One shielding cell, couples this modulating signal unit and this at least one fan, in order to receive a standby voltage, this duty
Signal and this modulating signal, and according to this standby voltage and this working state signal, to cover this modulating signal maybe by this modulation
Signal is sent to this at least one fan,
Wherein, when this standby voltage and this working state signal, one of them be high logic level, or this standby voltage and this work
When status signal is all high logic level, this shielding cell covers this modulating signal.
2. fan control device as claimed in claim 1, it is characterised in that when this modulating signal unit is not fully complete initialization
Time, this modulating signal unit provides this working state signal and this modulating signal of a high logic level, then this shielding cell depends on
According to this working state signal of this high logic level, cover this modulating signal of this high logic level.
3. fan control device as claimed in claim 1, it is characterised in that when this modulating signal unit completes to initialize,
This modulating signal unit provides this working state signal and this modulating signal of a pulse wave form of a low logic level, then should
Shielding cell is according to this working state signal of this low logic level, so that this modulating signal of this pulse wave form is sent to this extremely
A few fan.
4. fan control device as claimed in claim 1, it is characterised in that this modulating signal unit is defeated through a universal input
Go out pin, it is provided that this working state signal.
5. fan control device as claimed in claim 1, it is characterised in that this shielding cell includes:
One electric crystal, has one first end, one second end and one the 3rd end, and this first end of this electric crystal receives this standby voltage
With this working state signal, this second end of this electric crystal receives this modulating signal, and the 3rd end of this electric crystal couples ground connection
End.
6. fan control device as claimed in claim 1, it is characterised in that also include a power supply unit, couple this and cover
Unit, in order to provide this standby voltage, and this power supply unit is also coupled to this modulation unit and this at least one fan, is somebody's turn to do to provide
A running voltage needed for modulating signal unit and this at least one fan.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465181.6A CN103821745B (en) | 2012-11-16 | 2012-11-16 | Fan control device |
| US13/844,927 US20140140847A1 (en) | 2012-11-16 | 2013-03-16 | Fan control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465181.6A CN103821745B (en) | 2012-11-16 | 2012-11-16 | Fan control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103821745A CN103821745A (en) | 2014-05-28 |
| CN103821745B true CN103821745B (en) | 2016-08-10 |
Family
ID=50728110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210465181.6A Expired - Fee Related CN103821745B (en) | 2012-11-16 | 2012-11-16 | Fan control device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20140140847A1 (en) |
| CN (1) | CN103821745B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869370B (en) * | 2017-05-12 | 2019-12-17 | 保锐科技股份有限公司 | fan control device and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239991B1 (en) * | 2000-08-21 | 2001-05-29 | Nidec America Corporation | Control circuit compensating for malfunction of pulse width modulation circuitry |
| CN2888745Y (en) * | 2006-05-19 | 2007-04-11 | 奇宏电子(深圳)有限公司 | Time delay soft start circuit of fan |
| CN101430589A (en) * | 2007-11-08 | 2009-05-13 | 英业达股份有限公司 | Fan rotation speed control apparatus |
| CN101876328A (en) * | 2009-10-29 | 2010-11-03 | 浪潮电子信息产业股份有限公司 | Method for reducing start-up noises of server system |
| CN102444598A (en) * | 2010-09-30 | 2012-05-09 | 鸿富锦精密工业（深圳）有限公司 | Fan rotational speed control device and method thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ207431A (en) * | 1984-03-08 | 1989-03-29 | Fisher & Paykel | Pulse with modulation controls current in dc motor |
| US4890217A (en) * | 1988-07-26 | 1989-12-26 | Norand Corporation | Universal power supply, independent converter stages for respective hardware components of a computerized system |
| US6617709B2 (en) * | 2000-11-10 | 2003-09-09 | Delta Electronics, Inc. | Controlling device for a heat-dissipating system |
| US7479753B1 (en) * | 2004-02-24 | 2009-01-20 | Nvidia Corporation | Fan speed controller |
| WO2007052473A1 (en) * | 2005-10-31 | 2007-05-10 | Autonetworks Technologies, Ltd. | Power supply control device |
| DE102006016338A1 (en) * | 2006-04-05 | 2007-10-18 | Sitronic Gesellschaft für elektrotechnische Ausrüstung mbH. & Co. KG | Control device for regulating the voltage across a high-side load |
| US20070292257A1 (en) * | 2006-06-15 | 2007-12-20 | Ghee Beng Ooi | Apparatus and method to provide reduced fan noise at startup |
| US7557526B2 (en) * | 2007-06-07 | 2009-07-07 | Hsien-Meng Lee | Brushless motor control circuit assembly for ceiling fan |
| US7863849B2 (en) * | 2008-02-29 | 2011-01-04 | Standard Microsystems Corporation | Delta-sigma modulator for a fan driver |
| US20120223662A1 (en) * | 2011-03-04 | 2012-09-06 | King Golden Limited | Motor speed control system |
| CN202841046U (en) * | 2012-08-31 | 2013-03-27 | 中山大洋电机股份有限公司 | Fan motor |
-
2012
- 2012-11-16 CN CN201210465181.6A patent/CN103821745B/en not_active Expired - Fee Related
-
2013
- 2013-03-16 US US13/844,927 patent/US20140140847A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239991B1 (en) * | 2000-08-21 | 2001-05-29 | Nidec America Corporation | Control circuit compensating for malfunction of pulse width modulation circuitry |
| CN2888745Y (en) * | 2006-05-19 | 2007-04-11 | 奇宏电子(深圳)有限公司 | Time delay soft start circuit of fan |
| CN101430589A (en) * | 2007-11-08 | 2009-05-13 | 英业达股份有限公司 | Fan rotation speed control apparatus |
| CN101876328A (en) * | 2009-10-29 | 2010-11-03 | 浪潮电子信息产业股份有限公司 | Method for reducing start-up noises of server system |
| CN102444598A (en) * | 2010-09-30 | 2012-05-09 | 鸿富锦精密工业（深圳）有限公司 | Fan rotational speed control device and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140140847A1 (en) | 2014-05-22 |
| CN103821745A (en) | 2014-05-28 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20160810 Termination date: 20211116 |