TWI387197B - Direct and reverse control circuit of DC fan - Google Patents
Direct and reverse control circuit of DC fan Download PDFInfo
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- TWI387197B TWI387197B TW99104713A TW99104713A TWI387197B TW I387197 B TWI387197 B TW I387197B TW 99104713 A TW99104713 A TW 99104713A TW 99104713 A TW99104713 A TW 99104713A TW I387197 B TWI387197 B TW I387197B
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Description
本發明是有關於一種控制電路，特別是指一種直流風扇的正反轉控制電路裝置。The present invention relates to a control circuit, and more particularly to a forward and reverse control circuit device for a DC fan.
參閱圖1，為PCT第WO2006/089605 A1號「一種二相位電子轉換馬達運作方法及其負載輸出方法(Method for operation of a two-phase electronically-commuted motor and motor for carrying out said method)」專利案，該案所揭露之馬達10是由一直流電源11供電，馬達10的轉速控制是藉由一PWM產生器12所產生的時脈訊號控制，馬達10之轉子13旋轉時，其磁性變化並由霍爾IC14感應進而傳遞至可程式控制器15，可程式控制器15提供二個輸出訊號16、17以控制馬達10的轉向。PCT Patent No. WO2006/089605 A1, "Method for operation of a two-phase electronically-commuted motor and motor for carrying out said method" The motor 10 disclosed in the present case is powered by the DC power source 11. The rotation speed control of the motor 10 is controlled by a clock signal generated by a PWM generator 12. When the rotor 13 of the motor 10 rotates, its magnetic change is caused by The Hall IC 14 is inductively passed to the programmable controller 15, and the programmable controller 15 provides two output signals 16, 17 to control the steering of the motor 10.
由於可程式控制器15所輸出的二個輸出訊號16、17的電流都必須經過線圈18或19等組成元件，利用該可程式控制器15控制電流流經線圈18或19的方向，來達到改變馬達10產生正轉或反轉之目的，然而此種控制方式，會造成電流通過的元件較多，因而導致消耗功率較大，且元件成本亦較高。Since the currents of the two output signals 16, 17 outputted by the programmable controller 15 must pass through the coil 18 or 19 and the like, the programmable controller 15 controls the direction of the current flowing through the coil 18 or 19 to achieve the change. The motor 10 produces the purpose of forward rotation or reverse rotation. However, this control method causes more current to pass through the components, resulting in higher power consumption and higher component cost.
因此，本發明之目的，即在提供一種消耗功率低且控制方式容易，並能降低成本之直流風扇的正反轉控制電路裝置。Accordingly, it is an object of the present invention to provide a forward-reverse control circuit device for a DC fan which has low power consumption, is easy to control, and can reduce cost.
於是，本發明直流風扇的正反轉控制電路裝置，與一直流風扇的定子線圈電性連接，而能輸出令該定子線圈產生不同磁通方向的電流，以感應該直流風扇的磁鐵環帶動該直流風扇的扇輪產生相對應方向的轉動，該正反轉控制電路裝置包含有：一控制單元，包括有一與該定子線圈電性連接並能輸出一驅動訊號之驅動IC，及一與該驅動IC電性連接並能感應該磁鐵環的磁極性以通知該驅動IC改變輸出至該定子線圈之電流方向的霍爾IC；一電源，與該控制單元電性連接；及一觸發開關單元，包含有分別與該霍爾IC及該電源電性連接之一第一觸發電路及一第二觸發電路，該第一觸發電路具有一與一第一開關器電性連接的第一觸發端、一電性連接於該第一開關器與該霍爾IC之間的第二開關器，而該第二觸發電路具有一與該霍爾IC電性連接的第三開關器，及一與該第三開關器電性連接的第二觸發端，並令該第一、二觸發端是接收同一觸發訊號之來源；當該第一觸發端與該第二觸發端同時不被觸發時，該第一、三開關器不導通、該第二開關器則導通，此時該霍爾IC通知該驅動IC控制該直流風扇朝一特定方向旋轉，當該第一觸發端與該第二觸發端同時被一觸發訊號觸發時，該第一開關器與該第三開關器同時導通，該第二開關器不導通，而使該霍爾IC所電連接之電源的正、負極性換向，進而通知該驅動IC控制該直流風扇反轉。Therefore, the forward/reverse control circuit device of the DC fan of the present invention is electrically connected to the stator coil of the DC fan, and can output a current that causes the stator coil to generate different magnetic flux directions to sense the magnet ring of the DC fan. The fan of the DC fan generates a corresponding direction of rotation. The forward and reverse control circuit device includes: a control unit, including a driving IC electrically connected to the stator coil and capable of outputting a driving signal, and a driving unit The IC is electrically connected and can sense the magnetic polarity of the magnet ring to notify the driving IC to change the Hall IC outputting the current direction of the stator coil; a power source electrically connected to the control unit; and a trigger switch unit, including a first trigger circuit and a second trigger circuit are respectively electrically connected to the Hall IC and the power source, and the first trigger circuit has a first trigger end electrically connected to a first switch, and an electric a second switch between the first switch and the Hall IC, and the second trigger circuit has a third switch electrically connected to the Hall IC, and a first The second trigger end of the switch is electrically connected, and the first and second trigger ends are the source of receiving the same trigger signal; when the first trigger end and the second trigger end are not triggered simultaneously, the first The third switch is not turned on, and the second switch is turned on. At this time, the Hall IC notifies the driving IC to control the DC fan to rotate in a specific direction, and the first trigger end and the second trigger end are simultaneously triggered by a trigger signal. When triggered, the first switch and the third switch are simultaneously turned on, and the second switch is not turned on, and the positive and negative polarities of the power source electrically connected by the Hall IC are reversed, thereby notifying the driving IC control. The DC fan is reversed.
本發明之功效在於藉由同時觸發該第一、二觸發電路的第一、二觸發端，以直接強迫霍爾IC所電連接之電源的正、負極性換向，使霍爾IC能通知該驅動IC控制該直流風扇反轉，由於本發明只是適時地轉換該霍爾IC之電源的正、負極性即可達到使風扇產生正反轉之目的，因此能有效減少電流通過的元件，降低功率之消耗，且控制方式容易，並能同時降低成本。The effect of the invention is that the first and second trigger terminals of the first and second trigger circuits are simultaneously triggered to directly force the positive and negative polarity of the power supply electrically connected by the Hall IC, so that the Hall IC can notify the The driving IC controls the DC fan to reverse. Since the present invention only converts the positive and negative polarities of the power source of the Hall IC in a timely manner, the fan can be forward-reversed, thereby effectively reducing the current passing components and reducing the power. It is easy to consume and control, and it can reduce costs at the same time.
有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之一個較佳實施例的詳細說明中，將可清楚的呈現。The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.
參閱圖2、3，是本發明直流風扇的正反轉控制電路裝置2的一較佳實施例，該正反轉控制電路裝置2包括有一控制單元21、一與該控制單元21電性連接之電源(Vcc)22，及一觸發開關單元23。2 and 3, which are a preferred embodiment of the forward and reverse control circuit device 2 of the DC fan of the present invention, the positive and negative control circuit device 2 includes a control unit 21, and is electrically connected to the control unit 21. A power supply (Vcc) 22, and a trigger switch unit 23.
該控制單元21包括有一能輸出一驅動訊號之驅動IC211，及一與該驅動IC211電性連接之霍爾IC212。而該電源(Vcc)22是用以供應各單元所需的電力。另外，該觸發開關單元23包含有分別與該霍爾IC212及該電源(Vcc)22電性連接之一第一觸發電路231及一第二觸發電路232，該第一觸發電路231具有一與一第一開關器Q1及一電阻器R6電性連接的第一觸發端233、一電性連接於該第一開關器Q1與該霍爾IC212之間的第二開關器Q2，第一開關器Q1及第二開關器Q2在本實施例中均是以電晶體形態做說明，二者均定義有一基極端B、一射極端E及一集極端C，該第一觸發端233是取自該第一開關器Q1之基極端B，且該第一開關器Q1與該第二開關器Q2之集極端C分別連接一電阻器R1、R2再共同連接至該電源(Vcc)22。另外，該第二觸發電路232具有一與該霍爾IC212電性連接的第三開關器Q3，及一與該第三開關器Q3電性連接的第二觸發端234，第三開關器Q3也是以電晶體形態做說明，亦定義有一基極端B、一射極端E及一集極端C，該第二觸發端234是藉由一電阻器R7而連接該第三開關器Q3之基極端B；再者，該第一、二觸發端233、234是接收同一觸發訊號之來源。The control unit 21 includes a driving IC 211 capable of outputting a driving signal, and a Hall IC 212 electrically connected to the driving IC 211. The power source (Vcc) 22 is the power required to supply each unit. In addition, the trigger switch unit 23 includes a first trigger circuit 231 and a second trigger circuit 232 respectively electrically connected to the Hall IC 212 and the power source (Vcc) 22, and the first trigger circuit 231 has one and one a first trigger terminal 233 electrically connected to the first switch Q1 and a resistor R6, a second switch Q2 electrically connected between the first switch Q1 and the Hall IC 212, and a first switch Q1 And the second switch Q2 is described in the form of a transistor in the embodiment, both of which define a base end B, an emitter extreme E and an episode C. The first trigger end 233 is taken from the first A base terminal B of the switch Q1, and the collector terminal Q1 and the collector terminal C of the second switch Q2 are respectively connected to a resistor R1, R2 and connected to the power source (Vcc) 22. In addition, the second trigger circuit 232 has a third switch Q3 electrically connected to the Hall IC 212, and a second trigger terminal 234 electrically connected to the third switch Q3. The third switch Q3 is also Illustrated in the form of a transistor, there is also defined a base terminal B, an emitter terminal E and a collector terminal C, the second trigger terminal 234 is connected to the base terminal B of the third switch Q3 by a resistor R7; Moreover, the first and second trigger terminals 233, 234 are sources that receive the same trigger signal.
參閱圖2、3，在使用上，該正反轉控制電路裝置2是應用於控制直流風扇之扇輪33產生正反轉，藉由將該驅動IC211之輸出接腳與直流風扇之定子線圈31相連接，而該觸發開關單元23之第一觸發端233與第二觸發端234則連接至一與該直流風扇相連接的控制系統，當該控制系統未發出觸發訊號時，此時第一開關器Q1及第三開關器Q3均未被觸發導通，第一開關器Q1及第三開關器Q3均處於開路狀態，而第二開關器Q2則是導通狀態，此時電源(Vcc)22則經由電阻器R3直接經由霍爾IC212的第4隻腳輸入霍爾IC212，此時霍爾IC212的第4隻腳為正極+，霍爾IC212的第2隻腳則由於該第二開關器Q2被導通而處於接地狀態而為負極-，此時霍爾IC212將正常通知該驅動IC輸出電流至該定子線圈31產生一特定方向的磁通量，俾感應該直流風扇的磁鐵環32帶動該直流風扇的扇輪33產生相對應方向的轉動。Referring to FIGS. 2 and 3, in use, the forward/reverse control circuit device 2 is applied to the fan wheel 33 for controlling the DC fan to generate forward and reverse rotation, and the output pin of the drive IC 211 and the stator coil 31 of the DC fan are used. The first triggering end 233 and the second triggering end 234 of the triggering switch unit 23 are connected to a control system connected to the DC fan. When the control system does not send a trigger signal, the first switch is at this time. Both the device Q1 and the third switch Q3 are not triggered to be turned on, the first switch Q1 and the third switch Q3 are both in an open state, and the second switch Q2 is in an on state, at which time the power supply (Vcc) 22 is via The resistor R3 is directly input to the Hall IC 212 via the fourth leg of the Hall IC 212. At this time, the fourth leg of the Hall IC 212 is the positive electrode +, and the second leg of the Hall IC 212 is turned on because the second switch Q2 is turned on. In the grounded state, it is a negative electrode. At this time, the Hall IC 212 will normally notify the driving IC to output a current to the stator coil 31 to generate a specific direction of magnetic flux, and the magnet ring 32 of the DC fan is driven to drive the fan of the DC fan. 33 produces a corresponding direction of rotation.
另外，當該控制系統依環境所需而適時發出一觸發訊號同時觸發該觸發開關單元23之第一觸發端233與第二觸發端234，此時第一開關器Q1及第三開關器Q3均導通而形成接地，第二開關器Q2之基極B因第一開關器Q1之導通接地而形同斷路不導通，電源Vcc之電力可經由電阻器R2、霍爾IC212的第2隻腳輸入霍爾IC212而為正極(+)，而連接第三開關器Q3之霍爾IC212的第4隻腳則處於接地狀態而為負極(-)，如此，直接使該霍爾IC212的電源正、負極性互換(如圖3()中所示之極性與原來相反)，則該霍爾IC212將直接通知該驅動IC211輸出令該定子線圈31產生相反於前述磁通方向的電流，而感應該直流風扇的磁鐵環32帶動該直流風扇的扇輪33產生反轉。In addition, when the control system sends a trigger signal in time, the first trigger terminal 233 and the second trigger terminal 234 of the trigger switch unit 23 are triggered, and the first switch Q1 and the third switch Q3 are both at this time. The base B of the second switch Q2 is turned off due to the conduction of the first switch Q1, and the power of the power supply Vcc can be input via the resistor R2 and the second leg of the Hall IC 212. IC212 is the positive (+), and the fourth leg of the Hall IC 212 connected to the third switch Q3 is in the ground state and is the negative (-). Thus, the positive and negative polarity of the power of the Hall IC 212 is directly made. Interchange (the polarity shown in FIG. 3( ) is opposite to the original), the Hall IC 212 will directly notify the driving IC 211 to output a current that causes the stator coil 31 to generate a direction opposite to the magnetic flux direction, and sense the DC fan. The magnet ring 32 drives the fan wheel 33 of the DC fan to reverse.
綜上所述，本發明直流風扇的正反轉控制電路裝置2藉由上述構造設計，利用同時觸發該第一、二觸發電路231、232的第一、二觸發端233、234，以直接強迫霍爾IC212所電連接之電源的正、負極性換向，使霍爾IC212能進而通知該驅動IC211控制該直流風扇反轉，由於本發明只是適時地轉換該霍爾IC212之電源的正、負極性即可達到使直流風扇產生正反轉之目的，因此相對於習知而言，便能有效減少電流通過的元件，所以能有效降低功率之消耗，且控制方式容易，並能同時降低成本，故確實能達成本發明之目的。In summary, the forward/reverse control circuit device 2 of the DC fan of the present invention directly forces the first and second trigger terminals 233 and 234 of the first and second trigger circuits 231 and 232 by using the above-mentioned structural design. The forward and negative polarity of the power supply electrically connected to the Hall IC 212 allows the Hall IC 212 to further notify the driver IC 211 to control the DC fan inversion. Since the present invention only converts the positive and negative terminals of the power of the Hall IC 212 in a timely manner. The purpose of the DC fan is to achieve the purpose of positive and negative reversal. Therefore, compared with the conventional one, the component through which the current passes can be effectively reduced, so that the power consumption can be effectively reduced, the control method is easy, and the cost can be reduced at the same time. Therefore, the object of the present invention can be achieved.
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.
2．．．正反轉控制電路裝置2. . . Positive and negative control circuit device
21．．．控制單元twenty one. . . control unit
211．．．驅動IC211. . . Driver IC
212．．．霍爾IC212. . . Hall IC
22．．．電源(Vcc)twenty two. . . Power supply (Vcc)
23．．．觸發開關單元twenty three. . . Trigger switch unit
231．．．第一觸發電路231. . . First trigger circuit
232．．．第二觸發電路232. . . Second trigger circuit
233．．．第一觸發端233. . . First trigger
234．．．第二觸發端234. . . Second trigger
31．．．定子線圈31. . . Stator coil
32．．．磁鐵環32. . . Magnet ring
33．．．扇輪33. . . Fan wheel
Q1．．．第一開關器Q1. . . First switch
Q2．．．第二開關器Q2. . . Second switch
Q3．．．第三開關器Q3. . . Third switch
R1、R2、R3、R6、R7．．．電阻器R1, R2, R3, R6, R7. . . Resistor
B．．．基極端B. . . Base extreme
C．．．集極端C. . . Extreme set
E．．．射極端E. . . Shooting extreme
圖1是一電路圖，說明PCT第WO2006/089605 A1號專利案；Figure 1 is a circuit diagram illustrating the PCT Patent Application No. WO2006/089605 A1;
圖2是一方塊圖，說明本發明直流風扇的正反轉控制電路裝置之一較佳實施例；及2 is a block diagram showing a preferred embodiment of the forward and reverse control circuit device of the DC fan of the present invention; and
圖3是一電路圖，輔助說明該較佳實施例之各組成單元的電路佈置態樣。Figure 3 is a circuit diagram for explaining the circuit arrangement of the constituent units of the preferred embodiment.
2．．．正反轉控制電路裝置2. . . Positive and negative control circuit device
21．．．控制單元twenty one. . . control unit
211．．．驅動IC211. . . Driver IC
212．．．霍爾IC212. . . Hall IC
22．．．電源(Vcc)twenty two. . . Power supply (Vcc)
23．．．觸發開關單元twenty three. . . Trigger switch unit
231．．．第一觸發電路231. . . First trigger circuit
232．．．第二觸發電路232. . . Second trigger circuit
233．．．第一觸發端233. . . First trigger
234．．．第二觸發端234. . . Second trigger
31．．．定子線圈31. . . Stator coil
32．．．磁鐵環32. . . Magnet ring
33．．．扇輪33. . . Fan wheel
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99104713A TWI387197B (en) | 2010-02-12 | 2010-02-12 | Direct and reverse control circuit of DC fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99104713A TWI387197B (en) | 2010-02-12 | 2010-02-12 | Direct and reverse control circuit of DC fan |
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| TW201128926A TW201128926A (en) | 2011-08-16 |
| TWI387197B true TWI387197B (en) | 2013-02-21 |
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|---|---|---|---|---|
| US6188187B1 (en) * | 1998-08-07 | 2001-02-13 | Nidec America Corporation | Apparatus and method of regulating the speed of a DC brushless motor |
| US6288507B1 (en) * | 1998-10-22 | 2001-09-11 | Minebea Co., Ltd. | Motor drive circuit |
| US6008603A (en) * | 1998-10-28 | 1999-12-28 | Texas Instruments Incorporated | Brushless DC motor assembly control circuit |
| US6683434B2 (en) * | 2000-09-29 | 2004-01-27 | Sanyo Denki Co., Ltd. | Drive unit for brushless motor |
| US6703803B2 (en) * | 2001-02-22 | 2004-03-09 | Japan Servo Co. Ltd. | Fan motor driving circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201128926A (en) | 2011-08-16 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |