CN201521475U - Fan running circuit - Google Patents
Fan running circuit Download PDFInfo
- Publication number
- CN201521475U CN201521475U CN2009203095648U CN200920309564U CN201521475U CN 201521475 U CN201521475 U CN 201521475U CN 2009203095648 U CN2009203095648 U CN 2009203095648U CN 200920309564 U CN200920309564 U CN 200920309564U CN 201521475 U CN201521475 U CN 201521475U
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- drive output
- control chip
- fan running
- branch road
- induction
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Abstract
The embodiment of the utility model relates to a fan running circuit comprising a control chip which is provided with a first drive output terminal and a second drive output terminal and used for controlling the running of a fan; a first induction bypass connected with the first drive output terminal; a second induction bypass which is connected with the second drive output terminal and used for co-working with the first induction bypass to be controlled by the control chip and generate alternating magnetic field of a permanent magnet required for shifting running; and a capacitance bypass which is connected with the first drive output terminal or the second drive output terminal and used for absorbing alternating impulse which is generated in the control chip by different shifting intensity during the shifting of the alternating magnetic field. By adopting the fan running circuit of the embodiment of the utility model, noise caused by alternating impulse can be eliminated so as to lead the fan to be better applied in environment with high requirement for silence.
Description
Technical field
The utility model relates to a kind of fan running circuit.
Background technique
At present, generally comprised the fan running circuit in the existing fan, as shown in Figure 1, this circuit comprises that mainly first power supply provides terminal V1+12V, the first commutation diode D1, be provided with 1,2, the first control chip IC1 of 3 and 4 terminals, wherein, 1 terminal is a power supply terminal, 2,3 terminals are drive output, 4 terminals are grounding end, and the first induction branch road that is provided with the first inductance coil L1, be provided with the second induction branch road of the second inductance coil L2, the first control chip IC1 is used to control fan running, after providing terminal V1+12V by the first commutation diode D1, first power supply is connected respectively to the first induction branch road, 1 terminal of the second induction branch road and the first control chip IC1, the 4 terminal ground connection of the first control chip IC1, the first induction branch road is connected to 2 terminals of the first control chip IC1, the second induction branch road is connected to 3 terminals of the first control chip IC1, the electric current that first electricity provides source terminal V1+12V to provide flows to 1 terminal of the first control chip IC1 by the first commutation diode D1, and 2 terminals by the first control chip IC1 are to the first inductance coil L1,3 terminals by the first control chip IC1 are to the second inductance coil L2, by the first control chip IC1 inside from its 4 terminal ground connection.2 terminals of the first control chip IC1,3 terminal alternations, at this moment, the first inductance coil L1 and the second inductance coil L2 alternation, when promptly the first inductance coil L1 opens, the second inductance coil L2 closes, when the first inductance coil L1 closes, the second inductance coil L2 opens, like this, the collaborative second induction branch road of the first induction branch road is controlled by the first control chip IC1, to produce alternating magnetic field with required first permanent magnet of cutting running, reach the purpose of fan running, and fan is in operation process, alternating magnetic field is when switching (commutation), the first control chip IC1 inside has the pause of nanosecond to the delicate level time, first permanent magnet and alternating magnetic field have certain dynamics, and the variation of the first permanent magnet position needs the driving of high magnetic fields, the first control chip IC1 is inner can to produce alternating-current pulse (high impulse ripple) because of the conversion dynamics is different, cause when fan running, especially when low frequency turns round, people's ear can hear that the alternating magnetic field because of cutting first permanent magnet switches the noise that the alternating-current pulse that produces causes, and causes fan can't well be suitable in quiet demanding environment.
The model utility content
The utility model embodiment technical problem to be solved is, a kind of fan running circuit is provided, and the alternating magnetic field that can eliminate because of the cutting permanent magnet switches the noise that the alternating-current pulse that produces causes, and fan better is suitable in quiet demanding environment.
For solving the problems of the technologies described above, the utility model embodiment adopts following technological scheme:
A kind of fan running circuit comprises:
It is sub and second drive output to be provided with first drive output, is used to control the control chip of fan running;
The first induction branch road that links to each other with described first drive output;
Link to each other with described second drive output, be used for the collaborative described first induction branch road and controlled by described control chip, produce the second induction branch road of the alternating magnetic field of the required permanent magnet of cutting running;
In addition, also comprise:
Link to each other with described first drive output or described second drive output, be used for absorbing because of described alternating magnetic field switching causes conversion dynamics difference, and in described control chip, produce the capacitive branch of alternating-current pulse.
The utility model embodiment's beneficial effect is:
By a kind of fan running circuit is provided, this fan running circuit comprises that the alternating magnetic field switching that is used to absorb because of the cutting permanent magnet causes conversion dynamics difference, and in control chip, produce the capacitive branch of alternating-current pulse, can eliminate the noise that causes because of this alternating-current pulse, fan better is suitable in quiet demanding environment.
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the fan running circuit of prior art;
Fig. 2 is the structural representation of the specific embodiment of fan running circuit of the present utility model.
Embodiment
The utility model embodiment provides a kind of fan running circuit, comprises being provided with first drive output son and second drive output, is used to control the control chip of fan running; The first induction branch road that links to each other with described first drive output; Link to each other with described second drive output, be used for the collaborative described first induction branch road and controlled by described control chip, produce the second induction branch road of the alternating magnetic field of the required permanent magnet of cutting running; And, link to each other with described first drive output or described second drive output, be used for absorbing because of described alternating magnetic field switching causes conversion dynamics difference, and in described control chip, produce the capacitive branch of alternating-current pulse.Adopt the utility model embodiment's fan running circuit, can eliminate the noise that causes because of this alternating-current pulse, fan better is suitable in quiet demanding environment.
Certainly, the several border factually of the bar of above-mentioned capacitive branch situation adopts, and for example, can connect a capacitive branch at one of them terminal of control chip, also can control chip wherein two terminals respectively connect a capacitive branch etc.
With a specific embodiment, fan running circuit of the present utility model is described below.
Fig. 2 is the structural representation of the specific embodiment of fan running circuit of the present utility model, and with reference to this figure, this fan running circuit mainly comprises:
Second source provides terminal V2+12V, the second commutation diode D2, be provided with 1,2, the second control chip IC2 of 3 and 4 terminals, wherein, 1 terminal is a power supply terminal, 2,3 terminals are drive output, 4 terminals are grounding end, and the 3rd induction branch road that is provided with the 3rd inductance coil L3, be provided with the 4th induction branch road of the 4th inductance coil L4, the second control chip IC2 is used to control fan running, after providing terminal V2+12V by the second commutation diode D2, second source is connected respectively to the 3rd induction branch road, 1 terminal of the 4th induction branch road and the second control chip IC2, the 4 terminal ground connection of the second control chip IC2, the 3rd induction branch road is connected to 2 terminals of the second control chip IC2, the 4th induction branch road is connected to 3 terminals of the second control chip IC2, the electric current that second source provides terminal V2+12V to provide flows to 1 terminal of the second control chip IC2 by the second commutation diode D2, and 2 terminals to the, the three inductance coil L3 by the second control chip IC2, by 3 terminals to the, the four inductance coil L4 of the second control chip IC2, by the second control chip IC2 inside from its 4 terminal ground connection.2 terminals of the second control chip IC2,3 terminal alternations, at this moment, the 3rd inductance coil L3 and the 4th inductance coil L4 alternation, when promptly the 3rd inductance coil L3 opens, the 4th inductance coil L4 closes, when the 3rd inductance coil L3 closes, the 4th inductance coil L4 opens, like this, collaborative the 4th induction branch road of the 3rd induction branch road is controlled by described control chip, to produce alternating magnetic field with required second permanent magnet of cutting running, reach the purpose of fan running, and fan is in operation process, alternating magnetic field is when switching (commutation), the second control chip IC2 inside has the pause of nanosecond to the delicate level time, second permanent magnet and alternating magnetic field have certain dynamics, and the variation of the second permanent magnet position needs the driving of high magnetic fields, the second control chip IC2 is inner can to produce alternating-current pulse (high impulse ripple) because of the conversion dynamics is different, cause when fan running, especially when low frequency turned round, people's ear can hear that the alternating magnetic field because of cutting second permanent magnet switches the noise that the alternating-current pulse that produces causes, and causes fan can't well be suitable in quiet demanding environment, therefore, also comprise in this fan running circuit:
Link to each other with 2 terminals of the second control chip IC2, be used for absorbing because of above-mentioned alternating magnetic field switches and cause conversion dynamics difference, and in the second control chip IC2, produce first capacitive branch of alternating-current pulse, particularly, above-mentioned first capacitive branch comprises first resistance R 1 and first capacitor C 1, first resistance R, 1 one ends link to each other with 2 terminals of the second control chip IC2, and the other end links to each other with first capacitor C, 1 one ends, first capacitor C, 1 the other end ground connection;
And, link to each other with 3 terminals of the second control chip IC2, be used for absorbing because of above-mentioned alternating magnetic field switches and cause conversion dynamics difference, and in the second control chip IC2, produce second capacitive branch of alternating-current pulse, particularly, above-mentioned second capacitive branch comprises that second resistance R 2 and second capacitor C, 2, the second resistance R, 2 one ends link to each other with 3 terminals of the second control chip IC2, the other end links to each other with second capacitor C, 2 one ends, second capacitor C, 2 the other end ground connection;
Like this, be used to absorb because of the alternating magnetic field that cuts second permanent magnet switches and cause conversion dynamics difference, and in the second control chip IC2, produce first capacitive branch and second capacitive branch of alternating-current pulse, can eliminate the noise that causes because of alternating-current pulse, fan better is suitable in quiet demanding environment.
The above is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (4)
1. fan running circuit comprises:
It is sub and second drive output to be provided with first drive output, is used to control the control chip of fan running;
The first induction branch road that links to each other with described first drive output;
Link to each other with described second drive output, be used for the collaborative described first induction branch road and controlled by described control chip, produce the second induction branch road of the alternating magnetic field of the required permanent magnet of cutting running;
It is characterized in that, also comprise:
Link to each other with described first drive output or described second drive output, be used for absorbing because of described alternating magnetic field switching causes conversion dynamics difference, and in described control chip, produce the capacitive branch of alternating-current pulse.
2. fan running circuit as claimed in claim 1 is characterized in that, described capacitive branch comprises resistance and electric capacity:
Described resistance one end links to each other with described first drive output or described second drive output, and the other end links to each other with described electric capacity one end, described electric capacity the other end ground connection;
The described first induction branch road is provided with first inductance coil, and the described second induction branch road is provided with second inductance coil.
3. fan running circuit as claimed in claim 1 is characterized in that, described fan running circuit comprises:
First capacitive branch that links to each other with described first drive output, and second capacitive branch that links to each other with described second drive output.
4. as each described fan running circuit in the claim 1 to 3, it is characterized in that, described fan running circuit comprises that also power supply provides terminal and commutation diode, described control chip also comprises power supply terminal and ground terminal, described power supply provides terminal to pass through to connect the described first induction branch road, described second induction branch road and the described power supply terminal respectively, described ground terminal ground connection behind the described commutation diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203095648U CN201521475U (en) | 2009-09-03 | 2009-09-03 | Fan running circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203095648U CN201521475U (en) | 2009-09-03 | 2009-09-03 | Fan running circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521475U true CN201521475U (en) | 2010-07-07 |
Family
ID=42507652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203095648U Expired - Fee Related CN201521475U (en) | 2009-09-03 | 2009-09-03 | Fan running circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521475U (en) |
-
2009
- 2009-09-03 CN CN2009203095648U patent/CN201521475U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BEILEIKE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YANG MIAN Effective date: 20101026 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 10F10G, BUILDING 1, SUNSHINE HUAYI BUILDING, NORTH OF XIGUIMIAO ROAD, NANHAI AVENUE, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518000 10G AND 10F, BUILDING 1, SUNSHINE HUAYI BUILDING, NO.3003, NANHAI AVENUE, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101026 Address after: 1, 10F, 10G, 3003 sunshine Huayi building, No. 518000 Nanhai Road, Shenzhen, Guangdong, Nanshan District Patentee after: Shenzhen Bei Ke Ke Technology Co., Ltd. Address before: 518000, Shenzhen, Guangdong, Nanshan District Nanhai Avenue, West Temple, northbound sunshine Huayi Building 1 10F10G Patentee before: Yang Mian |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20120903 |