CN104481906B - A kind of can the control circuit of cooling fan of intelligent selection voltage and computer - Google Patents
A kind of can the control circuit of cooling fan of intelligent selection voltage and computer Download PDFInfo
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- CN104481906B CN104481906B CN201410727356.5A CN201410727356A CN104481906B CN 104481906 B CN104481906 B CN 104481906B CN 201410727356 A CN201410727356 A CN 201410727356A CN 104481906 B CN104481906 B CN 104481906B
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- 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
- F04D27/02—Surge control
- F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- 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
- F04D27/02—Surge control
- F04D27/0261—Surge control by varying driving speed
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/206—Cooling means comprising thermal management
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention disclose a kind of can the control circuit of cooling fan of intelligent selection voltage and computer, it comprises the main power model of power supply, connected power interface, be connected with power interface, can according to system ambient temperature select run or stop and can operationally to the self-adjusting main control circuit of radiating fan rotation speed; And auxiliary cicuit time out of service after the system temperature rise non-startup optimization of not high main control circuit or power-off, radiation fan being operated.Cooperatively interacted by main control circuit and auxiliary cicuit, system open temperature rise not high time and after system closedown, select auxiliary cicuit to power to radiation fan with lower boost voltage, the low-work voltage that one stable is provided, Loss reducing and noise, heat in main frame is discharged, reaches efficiently radiates heat.After system works a period of time, select main control circuit high working voltage to power to radiation fan F, under this voltage, adjust the rotating speed of radiation fan simultaneously, realize radiation fan multistage intelligent control.
Description
Technical field
The present invention relates to electronic product radiating technical field, particularly relate to a kind of can the control circuit of cooling fan of intelligent selection voltage and computer.
Background technique
At present, in the period that electronic product is prevailing, computer is widely used, using in the process calculated, the operation of computer-internal electronic component can consume a large amount of power, and these distribute in the mode of heat greatly, cause the rising of computer-internal temperature, and most of electronic component can affect its electrical quality and reduction of service life because of the rising of ambient temperature, for head it off, generally install radiation fan in computer, utilize radiation fan to reach the effect reducing temperature, ensure the normal work of electronic component in computer, .
Generally include in computer and transfer galvanic driving power 12V and accessory power supply 5VSB to by Ac, general design is the driving power voltage applying 12V to radiation fan, the rotating speed that radiation fan is fixed with one under this voltage always operates, but some defects can be there are, if computer is in start extremely shutdown during this period of time, radiation fan is all with a constant speed operation, therefore radiation fan to keep always the running of telling with ensure to calculate built-in temperature the highest time also can dispel the heat, the more power of radiation fan consumption, even affect working life, Given this problem, some developers design a kind of new radiation fan running circuit, this circuit can adjust the rotating speed of radiation fan according to the change of system temperature, as, the novel granted patent of China, Authorization Notice No. is the control circuit disclosing a kind of radiation fan in CN201638134U, this control circuit is primarily of the triode be connected with the driving power voltage of 12V, resistance and these components and parts of heat responsive element composition, in available machine time section, within the time of 12V driving power power voltage supply, the rotating speed of radiation fan can adjust according to the temperature variation of heating temperature-sensitive electronic component, be in for a long time to avoid radiation fan and run up down, reach the object reducing power loss, but still can there is following defect.
Start shooting when just lower temperature, when the temperature rise in computer is not high, although radiation fan can reduction of speed, be still run under 12V driving power voltage, the loss of this control circuit is still larger.
Therefore, be necessary to provide a kind of new control circuit of cooling fan and computer, to solve the problems of the technologies described above.
Summary of the invention
The object of the present invention is to provide a kind of can the control circuit of cooling fan of intelligent selection voltage, can realize according to temperature variation intelligent selection radiation fan operation voltage and automatically adjust under different voltage controlling radiating fan rotation speed, reduce the wastage while reaching good heat radiating.
The technological scheme realizing above-mentioned purpose is: a kind of can the control circuit of cooling fan of intelligent selection voltage, be connected with radiation fan, it is characterized in that, comprise the main power model of power supply, the power interface (DY) be connected with the main power model of described power supply, described power interface comprises working power first pin and the second pin difference output power supply voltage 12V and 5V when system boot, and accessory power supply pin exports boost voltage 5VSB; Be connected to the main control circuit of the first pin, be connected to the auxiliary cicuit of the second pin and accessory power supply pin, wherein, described main control circuit can be selected to run or stop and can operationally automatically adjusting described radiating fan rotation speed according to system ambient temperature; Described auxiliary cicuit can system temperature rise is not high make the power-off on the non-startup optimization of main control circuit or the first pin make main control circuit out of service time continue radiation fan is operated.
In technique scheme, described main control circuit comprises thermistor, first divider resistance, second divider resistance, 2nd NPN triode, second PNP triode and the 3rd resistance and control switch assembly, one end connection control switch block of described thermistor and one end of the first divider resistance, the other end of the first divider resistance is connected with one end of the second divider resistance, the other end ground connection of the second divider resistance, the tie point that first divider resistance and the second divider resistance are connected is connected with the base stage of the 2nd NPN triode, the collector electrode of the 2nd NPN triode is connected with one end of the 3rd resistance, the grounded-emitter connection of the 2nd NPN triode, the other end of the 3rd resistance is connected with the base stage of the second PNP triode, the collector electrode of the second PNP triode is connected with radiation fan positive pole, the emitter of the second PNP triode is connected with the other end of thermistor.
In technique scheme, described thermistor, the first divider resistance, the second divider resistance can make control switch element turns or disconnection according to system temperature change, control radiation fan run or stop with this.
In technique scheme, described control switch assembly is that metal-oxide-semiconductor and the 4th resistance and the 5th resistance connect to form.
In technique scheme, described control switch assembly metal-oxide-semiconductor also can replace with PNP type triode and NPN type triode combination.
In technique scheme, the electronic switch that described auxiliary cicuit comprises the energy storage module between holding with being connected to the second pin and reference and is connected between accessory power supply pin and radiation fan positive pole, the electrical energy drive electronic switch conducting that described energy storage module accessory power supply pin provides, makes described radiation fan be worked by accessory power supply pin powered.
In technique scheme, described energy storage module comprises the commutation diode, current-limiting resistance and the energy storage capacitor that are in series successively, wherein the anode of commutation diode is connected with the second pin, the negative electrode of commutation diode is connected with one end of current-limiting resistance, the other end of current-limiting resistance is connected with the anode with energy storage capacitor, and the negative electrode of energy storage capacitor is connected with grounding end GND.
In technique scheme, described electronic switch comprises diode, the first NPN type triode, the first PNP type triode, the 6th resistance and the 7th resistance; One end of described 7th resistance is connected with energy storage module, the other end of the 7th resistance is connected with the base stage of the first NPN type triode, the grounded-emitter connection of the first NPN type triode, the collector electrode of the first NPN type triode is connected with one end of the 6th resistance, the other end of the 6th resistance is connected with the base stage of a PNP type triode, the collector electrode of the one PNP type triode is connected with the positive pole of radiation fan, the emitter of the one PNP type triode is connected with the negative electrode of diode, and the anode of diode is connected with accessory power supply pin.
In technique scheme, described electronic switch can adopt metal-oxide-semiconductor to realize control switch function.
Another object of the present invention is to provide a kind of computer, comprise the control circuit of above-mentioned radiation fan, there is heat dispersion and well also can reduce power consumption and beneficial effect radiating fan rotation speed being adjusted automatically to control.
Of the present invention can the control circuit of cooling fan of intelligent selection voltage and computer compared with prior art, intelligent selection can supply the different circuit of radiation fan, namely just started working after system boot and lower temperature time and after system closedown, select auxiliary cicuit to power to radiation fan F with lower boost voltage+5VSB, the low-work voltage that one stable is provided, Loss reducing and noise to a certain extent, after-heat in main frame is discharged, reach efficiently radiates heat, delay the working life of main frame and electronic parts and components.Select main control circuit to power to radiation fan F with+12V when temperature is higher after system works a period of time, under this voltage, adjust the rotating speed of radiation fan simultaneously, realize the adjustment to radiation fan and control, realize multistage intelligent control.
Accompanying drawing explanation
Fig. 1 the present invention can the control circuit of cooling fan of intelligent selection voltage and the control circuit schematic diagram of computer;
Fig. 2 is the circuit theory diagrams of energy storage module 201 in Fig. 1.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, those skilled in the art better understand technological scheme of the present invention, and below in conjunction with embodiment also with reference to accompanying drawing, the present invention is described in more detail.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
Provided by the inventionly the control circuit of cooling fan of intelligent selection voltage can comprise main control circuit and auxiliary cicuit, intelligent selection can supply the different circuit of radiation fan, namely just started working after system boot and lower temperature time and after system closedown, select auxiliary cicuit to power to radiation fan with lower boost voltage+5VSB, the low-work voltage that one stable is provided, Loss reducing and noise to a certain extent, after-heat in main frame is discharged, reach efficiently radiates heat, delay the working life of main frame and electronic parts and components.Select main control circuit to power to radiation fan F with+12V when temperature is higher after system works a period of time, under this voltage, adjust the rotating speed of radiation fan simultaneously, realize the adjustment to radiation fan and control, realize multistage intelligent control.
Fig. 1 be the embodiment of the present invention provide can the control circuit of cooling fan schematic diagram of intelligent selection voltage, Fig. 2 is the circuit theory diagrams of energy storage module 201 in Fig. 1.As shown in the figure, control circuit of cooling fan comprises the main power model of power supply (not shown), the power interface DY be connected with the main power model of described power supply, described power interface DY comprises working power first pin PIN1 and the second pin PIN2 and accessory power supply pin PIN3, wherein, after computer energising, the main power model of power supply converts 220V electric main to direct current, all the time+5VSB boost voltage is exported by the accessory power supply pin PIN3 of power interface DY, and+12V and+5V system works supply voltage is exported respectively by the working power first pin PIN1 of power interface DY and the second pin PIN2 under system boot state.Be connected with the first pin PIN1 of described power interface DY, can select to run or stop and the main control circuit 100 adjusted described radiating fan rotation speed according to system ambient temperature; Be connected with the second pin PIN2 of described power interface DY and accessory power supply pin PIN3, can system temperature rise is not high make the power-off on the non-startup optimization of described main control circuit 100 or the first pin after make main control circuit 100 out of service time radiation fan is operated auxiliary cicuit 200, described main control circuit 100 is connected with radiation fan F respectively with auxiliary cicuit 200.
Described main control circuit 100 comprises thermistor PTC1, first divider resistance R1, second divider resistance R2, 2nd NPN triode Q1, second PNP triode Q2 and the 3rd resistance R3 and control switch assembly K, one end connection control switch block K of described thermistor PTC1 and one end of the first divider resistance R1, the other end of the first divider resistance R1 is connected with one end of the second divider resistance R2, the other end ground connection of the second divider resistance R2, the tie point that first divider resistance R1 and the second divider resistance R2 connect is connected with the base stage of the 2nd NPN triode Q1, the collector electrode of the 2nd NPN triode Q1 is connected with one end of the 3rd resistance R3, the grounded-emitter connection of the 2nd NPN triode Q1, the other end of the 3rd resistance R3 is connected with the base stage of the second PNP triode Q2, the collector electrode of the second PNP triode Q2 is connected with radiation fan F positive pole, the emitter of the second PNP triode Q2 is connected with the other end of thermistor PTC1.
Wherein, thermistor PTC1 described in described main control circuit 100, the first divider resistance R1, the second divider resistance R2 can make control switch assembly K be turned on or off according to system temperature change, control connected radiation fan F with this and whether connect working power voltage 12V first pin PIN1, carry out running under 12V supply voltage or stopping.In this embodiment, described control switch assembly K elects metal-oxide-semiconductor and the 4th resistance (R4) and the 5th resistance (R5) as and connects to form.Certainly, described control switch assembly K also can be the electronic parts and components that other can play switch block effect, as PNP type triode and NPN type triode combination replace.
Described auxiliary cicuit 200 comprises the energy storage module 201 be connected between the second pin PIN2 and grounding end GND and the electronic switch 202 be connected between accessory power supply pin PIN3 and radiation fan F positive pole, electrical energy drive electronic switch 202 conducting that described energy storage module 201 provides with accessory power supply pin PIN3, to make described radiation fan F by accessory power supply pin PIN3 powered operation.
Wherein, described energy storage module 201 comprises the commutation diode D2, current-limiting resistance R8 and the energy storage capacitor C1 that are in series successively, wherein the anode of commutation diode D2 is connected with described second pin PIN2, the negative electrode of commutation diode D2 is connected with one end of current-limiting resistance R8, the other end of current-limiting resistance R8 is connected with the anode with energy storage capacitor C1, and the negative electrode of energy storage capacitor C1 is connected with grounding end GND.
Wherein, in this embodiment, described electronic switch 202 comprises diode D1, the first NPN type triode Q5, the first PNP type triode Q4, the 7th resistance R7 and the 6th resistance R6, one end of described 6th resistance R6 is connected with energy storage module 201, the other end of the 6th resistance R7 is connected with the base stage of the first NPN type triode Q5, the grounded-emitter connection of the first NPN type triode Q5, the collector electrode of the first NPN type triode Q5 is connected with one end of the 7th resistance R7, the other end of the 7th resistance R7 is connected with the base stage of a PNP type triode Q4, the collector electrode of the one PNP type triode Q4 is connected with the positive pole of radiation fan F, the emitter of the one PNP type triode Q4 is connected with the negative electrode of diode D1, the anode of diode D1 is connected with accessory power supply pin PIN3.Wherein, described electronic switch 202 also can adopt metal-oxide-semiconductor to realize control switch function.
Working principle of the present invention is as follows:
After main frame is opened, as mentioned above, all the time+5VSB boost voltage is exported by the accessory power supply pin PIN3 of power interface DY, + 12V and+5V system works supply voltage is exported respectively by the working power first pin PIN1 of power interface DY and the second pin PIN2, + 12V working power voltage through thermistor PTC1, the first divider resistance R1 and the second divider resistance R2 dividing potential drop, Circuit tuning resistance.And the resistance induction power supply inside temperature of thermistor PTC1 and changing, when system is just started working, the temperature of internal system is lower, thermistor PTC1 resistance is larger, thermistor PTC1, the bleeder circuit that first divider resistance R1 and the second divider resistance R2 and the 4th resistance R4 and the 5th resistance R5 is formed makes the operating voltage of switch control rule assembly K and metal-oxide-semiconductor Q3 (concrete magnitude of voltage is determined with different metal-oxide-semiconductor according to actual needs) deficiency form off state, whole main control circuit 100 is in open-circuit condition, voltage cannot be become radiation fan F by the CE of the second PNP triode Q1 and power, therefore can Loss reducing.Now powered to radiation fan F by the boost voltage+5VSB in delay circuit 200, the low-work voltage that stable is provided.
When after the system works a bit of time, when temperature rises to a certain M temperature value gradually, (M temperature value can according to metal-oxide-semiconductor Q3 and thermistor PTC1 and R1 and divider resistance R1, R2 calculates and determines), after thermistor PTC1 resistance reduces to corresponding resistance gradually, by thermistor PTC1, the bleeder circuit that first divider resistance R1 and the second divider resistance R2 and the 4th resistance R4 and the 5th resistance R5 are formed makes switch control rule assembly K and MOS Q3 pipe just reach operating voltage (concrete magnitude of voltage is determined with different metal-oxide-semiconductor Q3 according to actual needs) and conducting is connected the 2nd NPN triode Q1 and the second PNP triode Q2, and along with temperature continues to rise gradually, 2nd NPN triode Q1 and the second PNP triode Q2 ducting capacity are strengthened, their CE ties resistance and reduces, working power voltage is extremely increased the power supply of radiation fan F by the CE of the second PNP triode Q2, radiation fan F running speed is accelerated, when otherwise power source internal temperature reduces, radiation fan F running speed slows down, when temperature is reduced to described M temperature value gradually or is less than M temperature value, after thermistor PTC1 resistance reduces to corresponding resistance gradually, by thermistor PTC1, the bleeder circuit that first divider resistance R1 and the second divider resistance R2 and the 4th resistance R4 and the 5th resistance R5 is formed makes switch control rule assembly K and metal-oxide-semiconductor Q3 fail reach operating voltage (concrete magnitude of voltage is determined with different metal-oxide-semiconductor according to actual needs) and disconnect, whole main control circuit 100 is in open-circuit condition, voltage cannot be become radiation fan F by the CE of the second PNP triode Q2 and power, therefore can Loss reducing.Now powered to radiation fan F by the boost voltage+5VSB in delay circuit 200, the low-work voltage that stable is provided.
When after system closedown ,+12V and+5V system works supply voltage just do not exist, and are only the lasting output of 5VSB boost voltage in system, and other are respectively organized voltage and close output; Because of under open state, energy storage module 201 is that energy storage capacitor C1 charges by working power voltage second pin PIN2 and commutation diode D2 and current-limiting resistance R8.So time energy storage module 201 in energy storage capacitor C1 had a certain amount of electricity, conducting voltage can be provided for the first NPN type triode Q5 and the first PNP type triode Q4, first NPN type triode Q5 and the first PNP type triode Q4 conducting, + 5VSB boost voltage is powered by the CE of diode D1 and the first PNP type triode Q4 radiation fan F that becomes a partner simultaneously, radiation fan F continuous running, goes the Residual heat removal be gathered in system host; When the voltage at energy storage capacitor C1 two ends is too small, cannot provide conducting voltage for the first NPN type triode Q5 and the first PNP type triode Q4, the first NPN type triode Q5 and the first PNP type triode Q4 ends, and radiation fan F no-voltage starts and stops operating.By parameters reasonable selection energy storage capacitor C1, radiation fan can be met the Residual heat removal in system host is gone.
The embodiment of the present invention also provide a kind of comprise above-mentioned can the computer of control circuit of cooling fan of intelligent selection voltage.
In sum, foregoing invention can the control circuit of cooling fan of intelligent selection voltage and computer, intelligent selection can supply the different circuit of radiation fan, namely just started working after system boot and lower temperature time and after system closedown, select auxiliary cicuit to power to radiation fan with lower boost voltage+5VSB, the low-work voltage that one stable is provided, Loss reducing and noise to a certain extent, heat in main frame is discharged, reach efficiently radiates heat, delay the working life of main frame and electronic parts and components.Select main control circuit to power to radiation fan F with+12V when temperature is higher after system works a period of time, under this voltage, adjust the rotating speed of radiation fan simultaneously, realize the adjustment to radiation fan and control, realize multistage intelligent control.
Should be understood that, above-mentioned embodiment of the present invention only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore, any amendment made when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Claims (7)
1. one kind can the control circuit of cooling fan of intelligent selection voltage, be connected with radiation fan (F), it is characterized in that, comprise: the main power model of power supply, the power interface (DY) be connected with the main power model of described power supply, described power interface (DY) comprises working power first pin (PIN1) and the second pin (PIN2) difference output power supply voltage 12V and 5V when system boot, and accessory power supply pin (PIN3) exports boost voltage 5VSB; Be connected to the main control circuit (100) of the first pin (PIN1), be connected to the auxiliary cicuit (200) of the second pin (PIN2) and accessory power supply pin (PIN3), wherein,
Described main control circuit (100) can be selected to run or stop and can operationally automatically adjusting described radiating fan rotation speed according to system ambient temperature, described auxiliary cicuit (200) can system temperature rise is not high make the power-off on the non-startup optimization of governor circuit or the first pin make governor circuit (100) out of service time continue radiation fan is operated, described main control circuit (100) comprises thermistor (PTC1), first divider resistance (R1), second divider resistance (R2), 2nd NPN triode (Q1), second PNP triode (Q2) and the 3rd resistance (R3) and control switch assembly (K), one end connection control switch block (K) of described thermistor (PTC1) and one end of the first divider resistance (R1), the other end of the first divider resistance (R1) is connected with one end of the second divider resistance (R2), the other end ground connection of the second divider resistance (R2), the tie point that first divider resistance (R1) and the second divider resistance (R2) are connected is connected with the base stage of the 2nd NPN triode (Q1), the collector electrode of the 2nd NPN triode (Q1) is connected with one end of the 3rd resistance (R3), the grounded-emitter connection of the 2nd NPN triode (Q1), the other end of the 3rd resistance (R3) is connected with the base stage of the second PNP triode (Q2), the collector electrode of the second PNP triode (Q2) is connected with radiation fan (F) positive pole, the emitter of the second PNP triode (Q2) is connected with the other end of thermistor (PTC1), described control switch assembly (K) connects to form for metal-oxide-semiconductor (Q3) and the 4th resistance (R4) and the 5th resistance (R5), described thermistor (PTC1), first divider resistance (R1), second divider resistance (R2) can make control switch assembly (K) be turned on or off according to system temperature change, control radiation fan (F) with this run or stop.
2. as claimed in claim 1 can the control circuit of cooling fan of intelligent selection voltage, it is characterized in that, described control switch assembly metal-oxide-semiconductor also can replace with PNP type triode or NPN type triode combination.
3. as claimed in claim 1 can the control circuit of cooling fan of intelligent selection voltage, it is characterized in that, described auxiliary cicuit (200) comprises the electronic switch (202) being connected to the second pin (PIN2) and holding the energy storage module (201) between (GND) with reference to ground and be connected between accessory power supply pin (PIN3) and radiation fan (F) positive pole, electrical energy drive electronic switch (202) conducting that described energy storage module (201) provides with accessory power supply pin (PIN3), makes described radiation fan (F) by accessory power supply pin (PIN3) powered operation.
4. as claimed in claim 3 can the control circuit of cooling fan of intelligent selection voltage, it is characterized in that, described energy storage module (201) comprises the commutation diode (D2), current-limiting resistance (R8) and the energy storage capacitor (C1) that are in series successively, wherein the anode of commutation diode (D2) is connected with the second pin (PIN2), the negative electrode of commutation diode (D2) is connected with one end of current-limiting resistance (R8), the other end of current-limiting resistance (R8) is connected with the anode with energy storage capacitor (C1), and the negative electrode of energy storage capacitor (C1) is connected with grounding end GND.
5. as claimed in claim 3 can the control circuit of cooling fan of intelligent selection voltage, it is characterized in that, described electronic switch (202) comprises diode (D1), the first NPN type triode (Q5), the first PNP type triode (Q4), the 6th resistance (R6) and the 7th resistance (R7), one end of described 7th resistance (R7) is connected with energy storage module (201), the other end of the 7th resistance (R7) is connected with the base stage of the first NPN type triode (Q5), the grounded-emitter connection of the first NPN type triode (Q5), the collector electrode of the first NPN type triode (Q5) is connected with one end of the 6th resistance (R6), the other end of the 6th resistance (R6) is connected with the base stage of the first PNP type triode (Q4), the collector electrode of the first PNP type triode (Q4) is connected with the positive pole of radiation fan (F), the emitter of the first PNP type triode (Q4) is connected with the negative electrode of diode (D1), the anode of diode (D1) is connected with accessory power supply pin (PIN3).
6. as claimed in claim 3 can the control circuit of cooling fan of intelligent selection voltage, it is characterized in that, described electronic switch (202) can adopt metal-oxide-semiconductor to realize control switch function.
7. a computer, comprises a radiation fan (F), it is characterized in that, the control circuit of described radiation fan (F) is any one of claim 1 to 6.
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| CN105606506A (en) * | 2016-03-17 | 2016-05-25 | 武汉四方光电科技有限公司 | Low-noise laser dust sensor and control method |
| CN110762047A (en) * | 2019-11-22 | 2020-02-07 | 协发(东莞)电子有限公司 | Fan control system and method of PC power supply |
| CN111596744B (en) * | 2019-12-11 | 2022-07-19 | 成都凌亚科技有限公司 | Intelligent control computer |
| CN117514887B (en) * | 2023-11-28 | 2024-05-07 | 广东晟辉科技股份有限公司 | Intelligent voltage-selecting cooling fan control circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW392106B (en) * | 1998-02-17 | 2000-06-01 | Asustek Comp Inc | Delay switch device for cooling fan on computer main board |
| CN201757074U (en) * | 2009-12-09 | 2011-03-09 | 蔡宗彦 | Double voltage input intelligence temperature control fan circuit device of computer power supply device |
| CN202854697U (en) * | 2012-10-17 | 2013-04-03 | 广州七喜电子科技有限公司 | Computer power source achieving heat dissipation in delayed mode |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006005259A1 (en) * | 2004-07-13 | 2006-01-19 | Qian Li | A monitor method and device for computer case and power supply |
-
2014
- 2014-12-05 CN CN201410727356.5A patent/CN104481906B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW392106B (en) * | 1998-02-17 | 2000-06-01 | Asustek Comp Inc | Delay switch device for cooling fan on computer main board |
| CN201757074U (en) * | 2009-12-09 | 2011-03-09 | 蔡宗彦 | Double voltage input intelligence temperature control fan circuit device of computer power supply device |
| CN202854697U (en) * | 2012-10-17 | 2013-04-03 | 广州七喜电子科技有限公司 | Computer power source achieving heat dissipation in delayed mode |
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Denomination of invention: Cooling fan control circuit with intelligent voltage selecting function and computer Effective date of registration: 20191104 Granted publication date: 20150923 Pledgee: China Co truction Bank Corp Guangzhou Zengcheng branch Pledgor: GUANGZHOU QIXI ELECTRONIC TECHNOLOGY CO., LTD. Registration number: Y2019440000163 |
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