CN110374899A - A kind of fan being applicable in super wide voltage range - Google Patents
A kind of fan being applicable in super wide voltage range Download PDFInfo
- Publication number
- CN110374899A CN110374899A CN201910704196.5A CN201910704196A CN110374899A CN 110374899 A CN110374899 A CN 110374899A CN 201910704196 A CN201910704196 A CN 201910704196A CN 110374899 A CN110374899 A CN 110374899A
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- Prior art keywords
- connect
- capacitor
- inductance
- fan
- voltage
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- 239000003990 capacitor Substances 0.000 claims abstract description 57
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
-
- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The embodiment of the present invention provides a kind of fan for being applicable in super wide voltage range, the one end for including: the first inductance is voltage input end, the drain electrode of the other end and metal-oxide-semiconductor of first inductance, one end of third capacitor connect, and the other end of third capacitor and the anode of diode connect；The anode of first capacitor is connect with one end of the first inductance, and the grid of metal-oxide-semiconductor is connect with PWM controller, and the source electrode of metal-oxide-semiconductor and one end of adjustable resistance connect, and the other end of adjustable resistance and the cathode of first capacitor connect；One end of second inductance is connect with the other end of third capacitor, and the other end of the second inductance and the other end of adjustable resistance connect, and the anode of the second capacitor is connect with the cathode of diode, and the cathode of the second capacitor is connect with the other end of the second inductance.A certain range of supply voltage can be converted to the voltage rating of target fan needs by the present invention, to reduce material variety and the inventory of user significantly.
Description
Technical field
The present invention relates to power electronics field more particularly to a kind of fans for being applicable in super wide voltage range.
Background technique
In the prior art, it needs to radiate to equipment by fan, it is general in order to meet the needs of various scene
The conventional nominal supply voltages of small-sized DC fan generally have tetra- kinds of 12V, 24V, 36V and 48V, along with different shape rulers
It is very little, it causes that fan signal is various, brings very big difficulty for design, generation, sale and the use of fan product.
Summary of the invention
In view of the above-mentioned problems, the embodiment of the present invention provides a kind of fan for being applicable in super wide voltage range.
The embodiment of the present invention provides a kind of fan for being applicable in super wide voltage range, comprising: the first inductance, the second inductance,
One capacitor, the second capacitor, third capacitor, diode, adjustable resistance, metal-oxide-semiconductor, PWM controller and target electric fan, the target wind
Fan is the DC fan with voltage rating, in which:
One end of first inductance is connect with supply voltage, the other end of first inductance and the third capacitor
One end connection, the other end of the third capacitor are connect with the anode of the diode；
The anode of the first capacitor is connect with one end of first inductance, the drain electrode of the metal-oxide-semiconductor and described first
The other end of inductance connects, and the grid of the metal-oxide-semiconductor is connect with the PWM controller, the source electrode of the metal-oxide-semiconductor with it is described adjustable
One end of resistance connects, and the other end of the adjustable resistance is connect with the cathode of the first capacitor；
One end of second inductance is connect with the other end of the third capacitor, the other end of second inductance and institute
The other end connection of adjustable resistance is stated, the anode of second capacitor is connect with the cathode of the diode, second capacitor
Cathode connect with the other end of second inductance；
The cathode of the first capacitor is grounded, and one end of the target fan is connect with the anode of second capacitor, institute
The other end for stating target fan is connect with the cathode of second capacitor；
The PWM controller is also connect with the anode of the second inductance, described for the voltage at monitoring objective fan both ends
PWM controller is also connect with one end of the adjustable resistance, for obtaining the voltage on the adjustable resistance.
Preferably, the PWM controller is also connect with the anode of the second inductance, described for monitoring the output voltage
PWM controller is also connect with one end of the adjustable resistance, for obtaining the voltage on the adjustable resistance.
Preferably, the value range of the supply voltage is 9V-70V.
Preferably, the PWM controller is UC2843 chip, and the voltage rating of the target fan is 12V.
A kind of fan being applicable in super wide voltage range provided in an embodiment of the present invention, by voltage conversion circuit by certain model
Supply voltage in enclosing is converted to the voltage rating of target fan needs, so that target fan can power in a certain range
It is worked normally in voltage, therefore, so that the fan of a model is adapted to a certain range of supply voltage, fan generates factory
3/4 or more fan model can be reduced, user does not need the power supply voltage level for excessively considering fan more, it is only necessary to select
Suitable fan, to reduce material variety and the inventory of user significantly.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of electrical block diagram for the fan for being applicable in super wide voltage range provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of electrical block diagram for the fan for being applicable in super wide voltage range provided in an embodiment of the present invention, such as
Shown in Fig. 1, which includes: the first inductance, the second inductance, first capacitor, the second capacitor, third capacitor, diode, adjustable electric
Resistance, metal-oxide-semiconductor, PWM controller and target fan, the target fan are the DC fan with voltage rating, in which:
One end of first inductance is connect with supply voltage, the other end of first inductance and the third capacitor
One end connection, the other end of the third capacitor are connect with the anode of the diode；
The anode of the first capacitor is connect with one end of first inductance, the drain electrode of the metal-oxide-semiconductor and described first
The other end of inductance connects, and the grid of the metal-oxide-semiconductor is connect with the PWM controller, the source electrode of the metal-oxide-semiconductor with it is described adjustable
One end of resistance connects, and the other end of the adjustable resistance is connect with the cathode of the first capacitor；
One end of second inductance is connect with the other end of the third capacitor, the other end of second inductance and institute
The other end connection of adjustable resistance is stated, the anode of second capacitor is connect with the cathode of the diode, second capacitor
Cathode connect with the other end of second inductance；
The cathode of the first capacitor is grounded, and one end of the target fan is connect with the anode of second capacitor, institute
The other end for stating target fan is connect with the cathode of second capacitor；
The PWM controller is also connect with the anode of the second inductance, for monitoring the voltage at target fan both ends, institute
It states PWM controller also to connect with one end of the adjustable resistance, for obtaining the voltage on the adjustable resistance.
Specifically, PWM controller is connect with the anode of the second inductance, since the voltage at the second inductance both ends is target wind
The voltage at both ends is fanned, therefore PWM controller can monitor the size of output voltage.
Meanwhile PWM controller is also connect with one end of adjustable resistance, can monitor the voltage on adjustable resistance.PWM control
Device detects the pressure drop on target fan voltage and adjustable resistance simultaneously to control the duty ratio of PWM wave, controls target wind with this
Both end voltage is fanned to stablize in 12V.
A kind of fan being applicable in super wide voltage range disclosed by the embodiments of the present invention by the first inductance L1, the second inductance L2,
First capacitor C1, the second capacitor C2, third capacitor C3, diode D, adjustable resistance R, metal-oxide-semiconductor Q, PWM controller and target fan
Composition, Vin are supply voltage access interface.Target fan is the fan in the prior art with voltage rating, DC current.
Specifically, first capacitor and the second capacitor are polar capacitor.
The embodiment of the present invention uses a voltage rating to be illustrated for the target fan of 12V, DC current, and fan connects
The both ends of second capacitor.Supply voltage is connect with Vin, and the value range of supply voltage is generally 9V to 70V, the embodiment of the present invention
The supply voltage pressure stabilizing of 9V to 70V to 12V is enabled target fan normal by the fan of the adaptation super wide voltage range of offer
Work.
The working principle of the fan of the adaptation super wide voltage range is as follows:
After supply voltage is connect with Vin, PWM controller exports PWM wave, controls metal-oxide-semiconductor by PWM wave with certain frequency
Rate switchs, and in switching process, the energy of supply voltage is transferred to by the first inductance, third capacitor and the storage of third inductance
On second inductance of output end.
Under steady state conditions, detailed process is as follows for the fan work of the adaptation super wide voltage range:
When metal-oxide-semiconductor closure, supply voltage is applied to the first inductance both ends, and the electric current in the first inductance starts linearly to increase
Add, while the voltage of third capacitor is applied to the both ends of the second inductance by metal-oxide-semiconductor, the electric current in the second inductance also starts linearly
Increase.
When metal-oxide-semiconductor disconnects, the current energy stored in the first inductance starts to give third capacitor charging, and with the second inductance
The current energy of middle storage passes through diode together and exports the voltage rating of target fan to the second capacitor charging, while giving mesh
Mark fan power supply.
A kind of fan being applicable in super wide voltage range provided in an embodiment of the present invention, will be certain by voltage conversion circuit
Supply voltage in range is converted to the voltage rating of target fan needs, so that target fan is in a certain range power supply electricity
It can be worked normally in pressure, therefore, so that the target fan of a model is adapted to a certain range of supply voltage, because
This, fan, which generates factory, can reduce 3/4 or more fan model, and user does not need the supply voltage for excessively considering fan more
Grade, it is only necessary to suitable fan is selected, to reduce material variety and the inventory of user significantly.
In addition, the electric current of target fan can increase suddenly when stall either short-circuit protection occurs for target fan,
And it is transferred to the input terminal of supply voltage, so that input current increases, the pressure drop on adjustable resistance can also be increased with it, when adjustable
After ohmically pressure drop increases to protection value, PWM controller can lower the duty ratio of the PWM wave of output, thus output end
Voltage can also decrease, and achieve the purpose that protect target fan.
On the basis of the above embodiments, it is preferable that the PWM controller is UC2843 chip, and the target fan is
DC fan, and the voltage rating of the target fan is 12V.
PWM controller controls integrated chip using the UC2843 current mode power supply of TI company, and setting current-limiting protection value is 1A,
The voltage rating of target fan is 12V, rated current 0.3A.
The present invention realizes one kind using the fan for adapting to super wide voltage range can be under 9V-70V power supply voltage range
Directly use.Meanwhile the fan is also equipped with current limitation function, so that fan is more convenient to use.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (3)
1. a kind of fan for being applicable in super wide voltage range characterized by comprising the first inductance, the second inductance, first capacitor,
Second capacitor, third capacitor, diode, adjustable resistance, metal-oxide-semiconductor, PWM controller and target electric fan, the target fan are tool
There is the DC fan of voltage rating, in which:
One end of first inductance is connect with supply voltage, one end of the other end of first inductance and the third capacitor
Connection, the other end of the third capacitor are connect with the anode of the diode；
The anode of the first capacitor is connect with one end of first inductance, the drain electrode of the metal-oxide-semiconductor and first inductance
Other end connection, the grid of the metal-oxide-semiconductor connect with the PWM controller, the source electrode of the metal-oxide-semiconductor and the adjustable resistance
One end connection, the other end of the adjustable resistance connect with the cathode of the first capacitor；
One end of second inductance is connect with the other end of the third capacitor, the other end of second inductance and it is described can
The other end connection of resistance is adjusted, the anode of second capacitor is connect with the cathode of the diode, and second capacitor is born
Pole is connect with the other end of second inductance；
The cathode of the first capacitor is grounded, and one end of the target fan is connect with the anode of second capacitor, the mesh
The other end of mark fan is connect with the cathode of second capacitor；
The PWM controller is also connect with the anode of second inductance, for monitoring the voltage at target fan both ends, institute
It states PWM controller also to connect with one end of the adjustable resistance, for obtaining the voltage on the adjustable resistance.
2. being applicable in the fan of super wide voltage range according to claim 1, which is characterized in that the value model of the supply voltage
It encloses for 9V-70V.
3. being applicable in the fan of super wide voltage range according to claim 1, which is characterized in that the PWM controller is
UC2843 chip, the voltage rating of the target fan are 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910704196.5A CN110374899B (en) | 2019-07-31 | 2019-07-31 | Fan suitable for ultra-wide voltage range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910704196.5A CN110374899B (en) | 2019-07-31 | 2019-07-31 | Fan suitable for ultra-wide voltage range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374899A true CN110374899A (en) | 2019-10-25 |
| CN110374899B CN110374899B (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910704196.5A Active CN110374899B (en) | 2019-07-31 | 2019-07-31 | Fan suitable for ultra-wide voltage range |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595247A (en) * | 2013-10-29 | 2014-02-19 | 江苏绿扬电子仪器集团有限公司 | DCDC converter in photovoltaic power generation system |
| CN108667323A (en) * | 2018-06-25 | 2018-10-16 | 广州金升阳科技有限公司 | Alternating current-direct current input adaptive switching power circuit |
| CN108696162A (en) * | 2018-04-26 | 2018-10-23 | 深圳市伊力科电源有限公司 | feedback type electronic load circuit and control method with ultra-wide input range |
| CN108832811A (en) * | 2018-07-03 | 2018-11-16 | 华南理工大学 | A kind of constant current output converter of Width funtion input |
| CN210949200U (en) * | 2019-07-31 | 2020-07-07 | 惠州汇能精电科技有限公司 | Fan suitable for ultra-wide voltage range |
-
2019
- 2019-07-31 CN CN201910704196.5A patent/CN110374899B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595247A (en) * | 2013-10-29 | 2014-02-19 | 江苏绿扬电子仪器集团有限公司 | DCDC converter in photovoltaic power generation system |
| CN108696162A (en) * | 2018-04-26 | 2018-10-23 | 深圳市伊力科电源有限公司 | feedback type electronic load circuit and control method with ultra-wide input range |
| CN108667323A (en) * | 2018-06-25 | 2018-10-16 | 广州金升阳科技有限公司 | Alternating current-direct current input adaptive switching power circuit |
| CN108832811A (en) * | 2018-07-03 | 2018-11-16 | 华南理工大学 | A kind of constant current output converter of Width funtion input |
| CN210949200U (en) * | 2019-07-31 | 2020-07-07 | 惠州汇能精电科技有限公司 | Fan suitable for ultra-wide voltage range |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110374899B (en) | 2024-07-19 |
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