TW201308875A - Fan speed control circuit - Google Patents
Fan speed control circuit Download PDFInfo
- Publication number
- TW201308875A TW201308875A TW100127609A TW100127609A TW201308875A TW 201308875 A TW201308875 A TW 201308875A TW 100127609 A TW100127609 A TW 100127609A TW 100127609 A TW100127609 A TW 100127609A TW 201308875 A TW201308875 A TW 201308875A
- Authority
- TW
- Taiwan
- Prior art keywords
- speed control
- voltage
- terminal
- driving
- control circuit
- Prior art date
Links
Abstract
Description
本發明係關於一種風扇轉速控制電路，尤其是一種可供使用者迅速便捷的調整轉速，並易於微型化之風扇轉速控制電路。The invention relates to a fan speed control circuit, in particular to a fan speed control circuit which can be quickly and conveniently adjusted by a user and is easy to miniaturize.
請參照第1圖所示，其係為中華民國發明I302400號「馬達轉速控制裝置」專利案所揭示之習知轉速控制電路。該習知轉速控制電路包含一驅動元件91、一調速單元92及一定子繞組93。該驅動元件91具有一電壓調控端911連接於該調速單元92，且該驅動元件91另具有一定子驅動埠912連接於該定子繞組93，其中該驅動元件91係根據該電壓調控端911之電壓準位由該定子驅動埠912輸出電流至該定子繞組93，以驅動一轉子依對應於該電壓調控端911之電壓準位的速度運轉。詳言之，該調速單元92係由串接於一電源及一接地點之間的一分壓電阻921及一調變電阻922所構成，且該二電阻921、922之間的串接點係連接至該驅動元件91的電壓調控端911，其中該調變電阻922係為一溫控電阻。Please refer to FIG. 1 , which is a conventional speed control circuit disclosed in the Patent No. I302400 "Motor Speed Control Device" of the Republic of China. The conventional speed control circuit includes a driving element 91, a speed regulating unit 92 and a certain sub-winding 93. The driving component 91 has a voltage regulating terminal 911 connected to the speed regulating unit 92, and the driving component 91 has a certain sub-drive 912 connected to the stator winding 93. The driving component 91 is based on the voltage regulating terminal 911. The voltage level is output by the stator drive 912 to the stator winding 93 to drive a rotor to operate at a speed corresponding to the voltage level of the voltage regulation terminal 911. In detail, the speed control unit 92 is composed of a voltage dividing resistor 921 and a modulation resistor 922 connected in series between a power source and a grounding point, and a series connection point between the two resistors 921 and 922. The voltage regulation terminal 911 is connected to the driving component 91, wherein the modulation resistor 922 is a temperature control resistor.
當上述之習知轉速控制電路進行運作時，該調變電阻922係可供改變其本身的電阻值，藉此改變該電源透過該分壓電阻921及調變電阻922以分壓方式在該串接點形成的電壓，進而調整該電壓調控端911的電壓準位，達到改變該轉子轉速之目的。When the conventional speed control circuit is operated, the modulation resistor 922 can change its own resistance value, thereby changing the power supply through the voltage dividing resistor 921 and the modulation resistor 922 to divide the voltage in the string. The voltage formed by the contact further adjusts the voltage level of the voltage regulating terminal 911 to achieve the purpose of changing the rotational speed of the rotor.
然而，由於該調變電阻922係為一溫控電阻，故該習知轉速控制電路僅能依照該溫變電阻所測得之環境溫度調整該轉子的轉速，無法供使用者依其他需求自行改變轉子轉速，且就風扇馬達之供應廠商而言，也無法以單一驅動電路滿足不同購買者個別的驅風轉速之需求；此外，即使以一般的旋鈕式可變電阻做為該調變電阻922，雖可供使用者依需求自行調整該調變電阻922之電阻值，但由於一般的旋鈕式可變電阻均具有較大體積，因此將使設有此轉速控制電路的馬達/風扇難以進一步微型化。However, since the modulation resistor 922 is a temperature-controlled resistor, the conventional speed control circuit can only adjust the rotation speed of the rotor according to the ambient temperature measured by the temperature-varying resistor, and cannot be changed by the user according to other requirements. The rotor speed, and as far as the supplier of the fan motor is concerned, it is not possible to satisfy the individual driver's individual speed of rotation with a single drive circuit; in addition, even if a general knob type variable resistor is used as the modulation resistor 922, Although the user can adjust the resistance value of the modulation resistor 922 according to the requirements, since the general knob type variable resistor has a large volume, it is difficult to further miniaturize the motor/fan provided with the rotation speed control circuit. .
基於上述原因，有必要進一步改良上述習用轉速控制電路，以期能夠達成供使用者迅速便捷的調整轉速、降低製造商的電路設計成本，並便於進行風扇微型化設計之功效。For the above reasons, it is necessary to further improve the above-mentioned conventional rotational speed control circuit, in order to achieve a quick and convenient adjustment of the rotational speed, reduce the manufacturer's circuit design cost, and facilitate the fan miniaturization design.
本發明主要目的係提供一種風扇轉速控制電路，可供使用者輕易且迅速的改變設有該風扇轉速控制電路的風扇馬達之轉速，具有便於調整驅動電流及降低電路設計成本之功效。The main purpose of the present invention is to provide a fan speed control circuit for the user to easily and quickly change the speed of a fan motor provided with the fan speed control circuit, which has the advantages of facilitating adjustment of the drive current and reducing the circuit design cost.
本發明之另一目的係提供一種風扇轉速控制電路，由精簡之電路完成且僅改變微型短路器之連接位置即可改變調速電壓之電壓準位，具有利於微型化設計之功效。Another object of the present invention is to provide a fan speed control circuit that can be changed by a simplified circuit and only change the connection position of the micro short circuit to change the voltage level of the speed regulation voltage, which is advantageous for miniaturization design.
根據本發明之風扇轉速控制電路，係包含一控速驅動單元及一調速單元。該控速驅動單元具有一驅動元件、一定子驅動埠及一電源/信號傳輸埠，該定子驅動埠連接該驅動元件並輸出該驅動元件產生的驅動電流，該電源/信號傳輸埠連接該驅動元件且具有一高準位端及一接地端。該調速單元具有一第一分壓元件及一第二分壓元件串聯連接於該高準位端及接地端之間，該第一及第二分壓元件之間的串聯接點形成一電壓輸出埠電性連接至該驅動元件，該調速單元另具有一調速電阻，該調速電阻之第一端點連接該電壓輸出埠，該調速電阻之第二端點係能夠連接至該高準位端、接地端或浮接。The fan speed control circuit according to the present invention comprises a speed control driving unit and a speed control unit. The speed control driving unit has a driving component, a certain sub-driver, and a power/signal transmission port. The stator driver is connected to the driving component and outputs a driving current generated by the driving component, and the power/signal transmission is connected to the driving component. And has a high level end and a ground end. The speed regulating unit has a first voltage dividing component and a second voltage dividing component connected in series between the high level terminal and the grounding end, and the series connection between the first and second voltage dividing components forms a voltage The output unit is electrically connected to the driving component, and the speed regulating unit further has a speed regulating resistor, the first end of the speed regulating resistor is connected to the voltage output port, and the second end of the speed regulating resistor is connectable to the High level terminal, ground terminal or floating connection.
所述第一分壓元件及第二分壓元件各由一電阻器所構成。The first voltage dividing element and the second voltage dividing element are each formed by a resistor.
所述第一分壓元件及第二分壓元件之中的至少一個係由數個電阻器串聯組成。At least one of the first voltage dividing element and the second voltage dividing element is composed of a plurality of resistors connected in series.
所述數個電阻器具有不同的電阻值。The plurality of resistors have different resistance values.
所述調速單元另具有一濾波電容與該第一分壓元件並聯連接。The speed regulating unit further has a filter capacitor connected in parallel with the first voltage dividing component.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式，作詳細說明如下：請參照第2圖所示，其係繪示本發明之風扇轉速控制電路的第一實施例，且該風扇轉速控制電路係供連接並控制一風扇馬達之定子繞組L內的驅動電流，以驅動該風扇馬達進行運轉。該風扇轉速控制電路包含一控速驅動單元1及一調速單元2，其中該控速驅動單元1連接該定子繞組L，而該調速單元2連接該控速驅動單元1，且該調速單元2可輸出一調速電壓，以供該控速驅動單元1對應於該調速單元2之調速電壓輸出該驅動電流。The above and other objects, features and advantages of the present invention will become more <RTIgt; The first embodiment of the fan speed control circuit of the present invention is shown, and the fan speed control circuit is configured to connect and control a drive current in the stator winding L of a fan motor to drive the fan motor to operate. The fan speed control circuit includes a speed control driving unit 1 and a speed control unit 2, wherein the speed control driving unit 1 is connected to the stator winding L, and the speed control unit 2 is connected to the speed control driving unit 1, and the speed control unit The unit 2 can output a speed regulation voltage for the speed control unit 1 to output the drive current corresponding to the speed regulation voltage of the speed control unit 2.
請再參照第2圖所示，該控速驅動單元1包含一驅動元件11、一電源/信號傳輸埠12、一定子驅動埠13及一電壓調控端14。該驅動元件11較佳為一驅動IC；該電源/信號傳輸埠12係供連接至一外部電路[未繪示]且與該驅動元件11電性連接，以便該控速驅動單元1及調速單元2藉由該電源/信號傳輸埠12自該外部電路接收一直流電源及接地，其中該電源/信號傳輸埠12具有一高準位端121供接收該直流電源，且該電源/信號傳輸埠12具有一接地端122用以接地，或者該電源/信號傳輸埠12更可另具有一信號傳輸端123，以將該驅動元件11所產生的轉速檢出訊號送至該外部電路；該定子驅動埠13係供連接至該定子繞組L且與該驅動元件11電性連接，以便將該驅動元件11所產生之驅動電流送至該定子繞組L；該電壓調控端14係連接於該驅動元件11及調速單元2，以便接收該調速單元2所輸出之調速電壓並送至該驅動元件11。Referring to FIG. 2 again, the speed control driving unit 1 includes a driving component 11, a power/signal transmission port 12, a certain sub-driver 13 and a voltage regulation terminal 14. The driving component 11 is preferably a driving IC; the power/signal transmission port 12 is connected to an external circuit [not shown] and electrically connected to the driving component 11 for the speed controlling driving unit 1 and the speed control The unit 2 receives the DC power and the ground from the external circuit by the power/signal transmission 12, wherein the power/signal transmission 12 has a high level terminal 121 for receiving the DC power, and the power/signal transmission 12 has a grounding terminal 122 for grounding, or the power/signal transmission port 12 may further have a signal transmitting end 123 for sending the speed detecting signal generated by the driving component 11 to the external circuit; the stator driving The 埠13 is connected to the stator winding L and electrically connected to the driving element 11 to send the driving current generated by the driving element 11 to the stator winding L; the voltage regulating end 14 is connected to the driving element 11 And the speed regulating unit 2, so as to receive the speed regulating voltage output by the speed regulating unit 2 and send it to the driving element 11.
該調速單元2具有一第一分壓元件21、一第二分壓元件22及一調速電阻23。在本實施例中，該第一分壓元件21及第二分壓元件22各由一電阻器所構成，且該第一分壓元件21及第二分壓元件22係串聯連接於該高準位端121及接地端122之間，其中該二分壓元件21、22之間的串聯接點係形成一電壓輸出埠24連接至該電壓調控端14，以便以該電壓輸出埠24之電壓做為該調速電壓，並透過該電壓調控端14將該調速電壓送至該驅動元件11。該調速電阻23具有一第一端點231及一第二端點232，該第一端點231連接該電壓輸出埠24，而該第二端點232則可連接至該高準位端121、接地端122或浮接[floating ]。The speed regulating unit 2 has a first voltage dividing component 21, a second voltage dividing component 22 and a speed regulating resistor 23. In this embodiment, the first voltage dividing component 21 and the second voltage dividing component 22 are each formed by a resistor, and the first voltage dividing component 21 and the second voltage dividing component 22 are connected in series to the Micro Motion. Between the terminal end 121 and the grounding terminal 122, wherein the series connection between the two voltage dividing elements 21, 22 forms a voltage output 埠 24 connected to the voltage regulating terminal 14 to make the voltage of the voltage output 埠 24 The speed regulation voltage is supplied to the driving element 11 through the voltage regulating terminal 14 . The speed regulating resistor 23 has a first end point 231 and a second end point 232. The first end point 231 is connected to the voltage output port 24, and the second end point 232 is connected to the high level end end 121. , ground terminal 122 or floating [floating].
當本發明之風扇轉速控制電路藉由該驅動元件11接收該直流電源驅動該風扇馬達時，該調速電阻23之第二端點232的連接狀態係可決定該電壓輸出埠24之電壓準位[即該調速電壓]，以供該驅動元件11對應於該調速電壓控制該定子繞組L內的驅動電流，進而調整該風扇馬達之轉速。詳言之，當該第二端點232為浮接時，該調速電壓係為該直流電源之電壓以該第一分壓元件21及該第二分壓元件22所形成的分壓；當該第二端點232連接該高準位端121時，該調速電壓係為該直流電源之電壓以一並聯電路及該第二分壓元件22所形成的分壓，其中該並聯電路由該第一分壓元件21及該調速電阻23並聯形成，且此時該調速電壓的電壓準位係高於該第二端點232浮接時之調速電壓的電壓準位；當該第二端點232連接該接地端122時，該調速電壓係為該直流電源之電壓以該第一分壓元件21及另一並聯電路所形成的分壓，此一並聯電路係由該第二分壓元件22及該調速電阻23並聯形成，且此時該調速電壓的電壓準位係低於該第二端點232浮接時之調速電壓的電壓準位。因此，該調速單元2可由該電壓輸出埠24送出數種不同的電壓準位做為該調速電壓，該驅動單元11即可透過該電壓調控端14接收此數種不同準位之電壓而驅動該風扇馬達以不同的轉速運轉。另，藉由設計該第一分壓元件21、第二分壓元件22及調速電阻23之電阻值，更可規劃該風扇馬達對應於該數種電壓準位之轉速與其額定轉速的關係，例如：當該第二端點232連接該高準位端121時，該風扇馬達之轉速為其額定轉速的100%；當該當該第二端點232為浮接時，該風扇馬達之轉速為其額定轉速的90%；而當該第二端點232連接該接地端122時，該風扇馬達之轉速為其額定轉速的80%。When the fan speed control circuit of the present invention receives the DC power to drive the fan motor, the connection state of the second end point 232 of the speed control resistor 23 determines the voltage level of the voltage output 埠24. [that is, the speed regulation voltage], so that the driving element 11 controls the driving current in the stator winding L corresponding to the speed regulation voltage, thereby adjusting the rotation speed of the fan motor. In detail, when the second terminal 232 is floating, the voltage regulation voltage is a voltage formed by the voltage of the DC power source by the first voltage dividing component 21 and the second voltage dividing component 22; When the second terminal 232 is connected to the high-level terminal 121, the voltage-regulating voltage is a voltage division of the voltage of the DC power source by a parallel circuit and the second voltage dividing component 22, wherein the parallel circuit is composed of The first voltage dividing component 21 and the speed regulating resistor 23 are formed in parallel, and the voltage level of the speed regulating voltage is higher than the voltage level of the speed regulating voltage when the second terminal 232 is floating; When the two terminals 232 are connected to the ground terminal 122, the voltage regulation voltage is a voltage division of the voltage of the DC power source formed by the first voltage dividing component 21 and another parallel circuit, and the parallel circuit is configured by the second The voltage dividing component 22 and the speed regulating resistor 23 are formed in parallel, and the voltage level of the speed regulating voltage is lower than the voltage level of the speed regulating voltage when the second terminal 232 is floating. Therefore, the speed regulating unit 2 can send a plurality of different voltage levels to the voltage regulating voltage by the voltage output terminal 24, and the driving unit 11 can receive the voltages of the plurality of different levels through the voltage regulating terminal 14. The fan motor is driven to operate at different rotational speeds. In addition, by designing the resistance values of the first voltage dividing component 21, the second voltage dividing component 22, and the speed regulating resistor 23, the relationship between the rotational speed of the fan motor corresponding to the plurality of voltage levels and the rated rotational speed thereof can be further planned. For example, when the second end point 232 is connected to the high level end 121, the speed of the fan motor is 100% of its rated speed; when the second end point 232 is floating, the speed of the fan motor is The rated speed is 90%; and when the second terminal 232 is connected to the ground 122, the fan motor rotates at 80% of its rated speed.
此外，該調速單元2更可另設有一濾波電容25與該第一分壓元件21並聯，因此一旦由該高準位端121所輸入的直流電源中存在電壓變化，該濾波電容25即可加以去除，進而避免該電壓變化透過該調速單元2及電壓調控端14進入該驅動元件11而造成毀損。另，也可另設有一二極體15連接於該高準位端121及驅動元件11之間，以便在不慎將該電源/信號傳輸埠12與該外部電路反向連接[即該高準位端121接地，而該接地端122接收該直流電源]時，可避免逆向電流破壞該驅動元件11，藉以達成反向極性保護之目的。In addition, the speed regulating unit 2 can further be provided with a filter capacitor 25 in parallel with the first voltage dividing component 21, so that when there is a voltage change in the DC power source input by the high level terminal 121, the filter capacitor 25 can be It is removed to prevent the voltage change from entering the driving element 11 through the speed regulating unit 2 and the voltage regulating terminal 14 to cause damage. In addition, a diode 15 may be further connected between the high-level terminal 121 and the driving component 11 to inadvertently connect the power/signal transmission port 12 to the external circuit [ie, the height is high. When the ground terminal 121 is grounded, and the ground terminal 122 receives the DC power source, the reverse current can be prevented from damaging the driving component 11 for the purpose of reverse polarity protection.
藉由上述電路構造，本發明之風扇轉速控制電路可供使用者自行依需求改變該風扇馬達之轉速，也可供風扇馬達之供應廠商以本發明之風扇轉速控制電路驅動同一種風扇馬達，即能夠滿足不同購買者個別的驅風轉速之需求。此外，由於使用者僅需要以習知的微型短路器[Jumper]、撥動開關[DIP switch]等元件連接該調速電阻23之第二端點232至該高準位端121、接地端122或浮接，因此可以大幅減少本發明之風扇轉速控制電路為達成轉速調整功能所需要的設置空間，進而便於為設有該風扇轉速控制電路之風扇進行微型化設計。With the above circuit configuration, the fan speed control circuit of the present invention can be used by the user to change the speed of the fan motor according to requirements, and the fan motor supplier can drive the same fan motor with the fan speed control circuit of the present invention. It can meet the needs of different purchasers' individual drive speeds. In addition, since the user only needs to connect the second end point 232 of the speed regulating resistor 23 to the high level end 121 and the ground end 122 by using a conventional micro-short [Jumper], a toggle switch [DIP switch] and the like. Or floating, so that the installation space required for the fan speed control circuit of the present invention to achieve the speed adjustment function can be greatly reduced, thereby facilitating miniaturization of the fan provided with the fan speed control circuit.
請參照第3圖所示，其係繪示本發明之風扇轉速控制電路的第二實施例，其與前述之第一實施例的風扇轉速控制電路之差異主要在於，該第一分壓元件21及第二分壓元件22的其中至少一個可由數個串聯之電阻器所組成，且該第一分壓元件21或第二分壓元件22的數個電阻器係具有不同的電阻值。藉此，該調速電阻23之第二端點232不僅可連接至該高準位端121、接地端122或浮接，亦可連接至該第一分壓元件21或第一分壓元件22中之任二相鄰電阻器之間的串聯接點，藉此可在該電壓輸出埠24形成更多種不同的電壓準位做為該調速電壓，以供該風扇馬達以更多種不同的轉速運轉。Referring to FIG. 3, it shows a second embodiment of the fan speed control circuit of the present invention, which differs from the fan speed control circuit of the first embodiment described above mainly in that the first voltage dividing element 21 At least one of the second voltage dividing elements 22 may be composed of a plurality of resistors connected in series, and the plurality of resistors of the first voltage dividing element 21 or the second voltage dividing element 22 have different resistance values. Therefore, the second end point 232 of the speed regulating resistor 23 can be connected not only to the high level end 121, the ground end 122 or the floating end, but also to the first voltage dividing element 21 or the first voltage dividing element 22 a series connection between any two adjacent resistors, whereby a plurality of different voltage levels can be formed at the voltage output 埠24 as the speed regulation voltage for the fan motor to be more varied The speed of operation.
綜上所述，僅藉由改變該調速電阻23之第二端點232與該二分壓元件21、22之間的連接關係，使用者即可輕易且迅速的改變設有本發明之風扇轉速控制電路的風扇馬達之轉速；同時，更由於該調速單元2之設計極為精簡，且僅改變微型短路器的連接位置即可完成上述連接關係，因此本發明之風扇轉速控制電路亦有利於應用在微型化之風扇中。In summary, the user can easily and quickly change the fan provided with the present invention only by changing the connection relationship between the second end point 232 of the speed regulating resistor 23 and the two voltage dividing elements 21, 22. The rotation speed of the fan motor of the speed control circuit; at the same time, the fan speed control circuit of the present invention is also advantageous because the design of the speed control unit 2 is extremely simplified and only the connection position of the micro short circuit is changed to complete the connection relationship. Used in miniaturized fans.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
1．．．控速驅動單元1. . . Speed control drive unit
11．．．驅動元件11. . . Drive component
12．．．電源/信號傳輸埠12. . . Power / Signal Transmission埠
121．．．高準位端121. . . High level position
122．．．接地端122. . . Ground terminal
123．．．信號傳輸端123. . . Signal transmission end
13．．．定子驅動埠13. . . Stator drive
14．．．電壓調控端14. . . Voltage regulation terminal
15．．．二極體15. . . Dipole
2．．．調速單元2. . . Speed control unit
21．．．第一分壓元件twenty one. . . First voltage dividing element
22．．．第二分壓元件twenty two. . . Second voltage dividing element
23．．．調速電阻twenty three. . . Speed control resistor
231．．．第一端點231. . . First endpoint
232．．．第二端點232. . . Second endpoint
24．．．電壓輸出埠twenty four. . . Voltage output埠
25．．．濾波電容25. . . Filter capacitor
L．．．定子繞組L. . . Stator winding
91．．．驅動元件91. . . Drive component
911．．．電壓調控端911. . . Voltage regulation terminal
912．．．定子驅動埠912. . . Stator drive
92．．．調速單元92. . . Speed control unit
921．．．分壓電阻921. . . Voltage divider resistor
922．．．調變電阻922. . . Modulation resistor
93．．．定子繞組93. . . Stator winding
第1圖：習知轉速控制電路之電路圖。Figure 1: Circuit diagram of a conventional speed control circuit.
第2圖：本發明風扇轉速控制電路之第一實施例的電路圖。Fig. 2 is a circuit diagram showing a first embodiment of the fan speed control circuit of the present invention.
第3圖：本發明風扇轉速控制電路之第二實施例的電路圖。Figure 3 is a circuit diagram of a second embodiment of the fan speed control circuit of the present invention.
1．．．控速驅動單元1. . . Speed control drive unit
11．．．驅動元件11. . . Drive component
12．．．電源/信號傳輸埠12. . . Power / Signal Transmission埠
121．．．高準位端121. . . High level position
122．．．接地端122. . . Ground terminal
123．．．信號傳輸端123. . . Signal transmission end
13．．．定子驅動埠13. . . Stator drive
14．．．電壓調控端14. . . Voltage regulation terminal
15．．．二極體15. . . Dipole
2．．．調速單元2. . . Speed control unit
21．．．第一分壓元件twenty one. . . First voltage dividing element
22．．．第二分壓元件twenty two. . . Second voltage dividing element
23．．．調速電阻twenty three. . . Speed control resistor
231．．．第一端點231. . . First endpoint
232．．．第二端點232. . . Second endpoint
24．．．電壓輸出埠twenty four. . . Voltage output埠
25．．．濾波電容25. . . Filter capacitor
L．．．定子繞組L. . . Stator winding
Claims (7)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100127609A TWI472147B (en) | 2011-08-03 | 2011-08-03 | Fan speed control circuit |
| CN201110237327.7A CN102913470B (en) | 2011-08-03 | 2011-08-18 | Fan rotating speed control circuit |
| CN2011203009298U CN202251000U (en) | 2011-08-03 | 2011-08-18 | Fan rotating speed control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100127609A TWI472147B (en) | 2011-08-03 | 2011-08-03 | Fan speed control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201308875A true TW201308875A (en) | 2013-02-16 |
| TWI472147B TWI472147B (en) | 2015-02-01 |
Family
ID=46112252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100127609A TWI472147B (en) | 2011-08-03 | 2011-08-03 | Fan speed control circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN102913470B (en) |
| TW (1) | TWI472147B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10338652B2 (en) | 2015-04-23 | 2019-07-02 | Prolific Technology Inc. | High voltage protection system for adjusting duty cycle by using pulse width modulation signal |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI472147B (en) * | 2011-08-03 | 2015-02-01 | Sunonwealth Electr Mach Ind Co | Fan speed control circuit |
| CN104675731B (en) * | 2013-11-29 | 2016-12-21 | 青岛玉兰祥商务服务有限公司 | Fan test circuit |
| CN104485857B (en) * | 2014-08-21 | 2017-09-15 | 株洲中车时代电气股份有限公司 | A kind of fan speed regulating circuit, method, system and its application |
| DE102017223263A1 (en) * | 2017-07-18 | 2019-01-24 | BSH Hausgeräte GmbH | Dishwasher with a liquid introduction in the upper area |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6329727B1 (en) * | 2000-02-08 | 2001-12-11 | Adc Telecommunications, Inc. | Power supply controller |
| US6239991B1 (en) * | 2000-08-21 | 2001-05-29 | Nidec America Corporation | Control circuit compensating for malfunction of pulse width modulation circuitry |
| TWI224416B (en) * | 2003-08-21 | 2004-11-21 | Delta Electronics Inc | Fan speed control circuit |
| TWI302400B (en) * | 2003-08-28 | 2008-10-21 | Delta Electronics Inc | Rotation speed controller of motor |
| CN100424987C (en) * | 2003-08-29 | 2008-10-08 | 台达电子工业股份有限公司 | Circuit for controlling fan rotating speed |
| CN2874580Y (en) * | 2006-03-01 | 2007-02-28 | 元山科技工业股份有限公司 | Temperature control speed changing circuit of DC brushless fan motor |
| TW200830691A (en) * | 2007-01-15 | 2008-07-16 | Hon Hai Prec Ind Co Ltd | Fan driving circuit |
| TWI350050B (en) * | 2007-05-04 | 2011-10-01 | Foxconn Tech Co Ltd | Fan circuit |
| TWI338440B (en) * | 2007-08-31 | 2011-03-01 | Delta Electronics Inc | Motor control device |
| TWM344683U (en) * | 2008-06-24 | 2008-11-11 | Forcecon Technology Co Ltd | Fan speed control circuit applying voltage-controlled pulse width |
| TWI472147B (en) * | 2011-08-03 | 2015-02-01 | Sunonwealth Electr Mach Ind Co | Fan speed control circuit |
-
2011
- 2011-08-03 TW TW100127609A patent/TWI472147B/en active
- 2011-08-18 CN CN201110237327.7A patent/CN102913470B/en active Active
- 2011-08-18 CN CN2011203009298U patent/CN202251000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10338652B2 (en) | 2015-04-23 | 2019-07-02 | Prolific Technology Inc. | High voltage protection system for adjusting duty cycle by using pulse width modulation signal |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI472147B (en) | 2015-02-01 |
| CN102913470B (en) | 2015-09-02 |
| CN102913470A (en) | 2013-02-06 |
| CN202251000U (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI472147B (en) | Fan speed control circuit | |
| US7841837B2 (en) | Cooling-fan rotation-speed control circuit | |
| US8674641B2 (en) | System and method for regulating motor rotation speed | |
| US20060109627A1 (en) | Control circuit for a cooling fan | |
| US8049450B2 (en) | Fan control circuit | |
| US8421390B2 (en) | Fan motor control device | |
| US9391497B2 (en) | Electric motors having modular construction, power sharing and performance configurability | |
| US20120068652A1 (en) | Fan drive circuit for electronic device | |
| JP4302675B2 (en) | Fan motor rotation speed control circuit and voltage regulation module thereof | |
| US9103348B2 (en) | DC motor device and DC fan using the same | |
| JPH0731190A (en) | Drive circuit for fan motor | |
| CN100424987C (en) | Circuit for controlling fan rotating speed | |
| JP3125493U (en) | DC motor overvoltage protection device | |
| JP2003142281A (en) | Driving circuit for led display device | |
| TWI460987B (en) | Driving circuit and method for fan | |
| TWI599161B (en) | Motor and revolution speed control method thereof | |
| US10056855B2 (en) | Variable-frequency motor device and fan thereof | |
| US8963471B1 (en) | Pulse width modulation DC motor controller | |
| US20150188309A1 (en) | Motor drive control device and motor drive control method | |
| TWI535184B (en) | Driving circuit and method for direct current fan | |
| TWM569111U (en) | Driving integrated circuit for use in alternating current fan motor stepless speed changing | |
| TWI420800B (en) | Mcu-less motor-driven module and the motor-control system thereof | |
| TWM569110U (en) | Driving integrated circuit for use in alternating current motor stepless speed changing | |
| TW202008707A (en) | Driver integrated circuit for stepless speed change of alternating-current fan motor which has smaller circuit area and lower manufacturing cost | |
| JP2005030531A (en) | Constant current control device |