TWM624093U - Motor controlling system - Google Patents

Motor controlling system Download PDF

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Publication number
TWM624093U
TWM624093U TW110212878U TW110212878U TWM624093U TW M624093 U TWM624093 U TW M624093U TW 110212878 U TW110212878 U TW 110212878U TW 110212878 U TW110212878 U TW 110212878U TW M624093 U TWM624093 U TW M624093U
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Taiwan
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circuit
transistor
motor control
control circuit
motor
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TW110212878U
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Chinese (zh)
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柯懿庭
陳春松
魏佐穎
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祥誠科技股份有限公司
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Priority to TW110212878U priority Critical patent/TWM624093U/en
Publication of TWM624093U publication Critical patent/TWM624093U/en

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Abstract

A motor controlling system is provided. A switching circuit is connected to a trigger circuit, and connected between a motor control circuit of the motor controlling system and a main control circuit and an external system. When power of a main power source of a motor is higher than a threshold, the trigger circuit outputs a first triggering signal. Then, the switching circuit disconnects the main control circuit and the motor control circuit according to the first triggering signal. Conversely, when the power of the main power source of the motor is not higher than the threshold, the trigger circuit outputs a second triggering signal. Then, the switching circuit connects the main control circuit to the motor control circuit according to the second triggering signal.

Description

馬達控制系統motor control system

本創作涉及馬達，特別是涉及一種馬達控制系統。The present creation relates to motors, in particular to a motor control system.

馬達控制系統的控制晶片可通過電纜從外部系統接收訊號、資訊和指令，以覆寫控制晶片所儲存的資料，為了精簡馬達控制系統與外部系統之間的纜線的數量，而常有對外電纜亦同附加多重功能的特性。The control chip of the motor control system can receive signals, information and commands from the external system through the cable to overwrite the data stored in the control chip. In order to reduce the number of cables between the motor control system and the external system, there are often external cables. Also with the additional feature of multiple functions.

常規馬達控制系統至少有兩條輸出入控制線，分別是電氣轉速輸出線以及命令轉速輸入線。若要透過外部系統對馬達控制系統進行程序更新，這兩條線為最好的資料和程序升級管道。在不去拆解馬達本體的前提下，保留馬達控制系統能正常控制馬達，又要保留由外部系統能對馬達控制系統進行程序更新和資料燒錄等功能，一套合適的閘道切換機制就有其必要性。Conventional motor control systems have at least two I/O control lines, which are the electrical speed output line and the command speed input line. To program the motor control system through an external system, these two lines are the best pipeline for data and program upgrades. On the premise of not disassembling the motor body, it is necessary to keep the motor control system to control the motor normally, and to retain the functions of program update and data burning of the motor control system by the external system. A suitable gateway switching mechanism is required. has its necessity.

本創作所要解決的技術問題在於，針對現有技術的不足提供一種馬達控制系統，設置於馬達內。所述馬達控制系統包含觸發電路、馬達控制電路以及切換電路。觸發電路的輸入端耦接主電源。當主電源的電力大於電力門檻值時，觸發電路輸出第一觸發訊號。當主電源的電力不大於電力門檻值時，觸發電路輸出第二觸發訊號。切換電路連接在馬達控制電路以及外部系統的主控電路之間，並連接觸發電路。當切換電路從觸發電路接收到第一觸發訊號時，切換電路依據第一觸發訊號，斷開馬達控制電路與主控電路之間的連接，使馬達控制電路與主控電路之間無法進行傳輸。當切換電路從觸發電路接收到第二觸發訊號時，切換電路依據第二觸發訊號，將馬達控制電路與主控電路相連接，以允許馬達控制電路與主控電路之間的傳輸。當馬達控制電路從主控電路接收到轉速命令時，馬達控制電路依據轉速命令，維持或斷開馬達控制電路與主控電路之間的連接。The technical problem to be solved by this creation is to provide a motor control system, which is arranged in the motor, in view of the deficiencies of the prior art. The motor control system includes a trigger circuit, a motor control circuit and a switching circuit. The input end of the trigger circuit is coupled to the main power supply. When the power of the main power source is greater than the power threshold, the trigger circuit outputs a first trigger signal. When the power of the main power source is not greater than the power threshold value, the trigger circuit outputs a second trigger signal. The switching circuit is connected between the motor control circuit and the main control circuit of the external system, and is connected to the trigger circuit. When the switch circuit receives the first trigger signal from the trigger circuit, the switch circuit disconnects the connection between the motor control circuit and the main control circuit according to the first trigger signal, so that the transmission between the motor control circuit and the main control circuit cannot be performed. When the switch circuit receives the second trigger signal from the trigger circuit, the switch circuit connects the motor control circuit and the main control circuit according to the second trigger signal, so as to allow transmission between the motor control circuit and the main control circuit. When the motor control circuit receives a rotational speed command from the main control circuit, the motor control circuit maintains or disconnects the connection between the motor control circuit and the main control circuit according to the rotational speed command.

在實施例中，切換電路包含開關元件。開關元件的第一端連接主控電路。開關元件的第二端連接馬達控制電路。開關元件的控制端連接觸發電路的輸出端。In an embodiment, the switching circuit includes a switching element. The first end of the switch element is connected to the main control circuit. The second end of the switching element is connected to the motor control circuit. The control end of the switch element is connected to the output end of the trigger circuit.

在實施例中，切換電路包含開關元件。觸發電路包含第一電晶體。第一電晶體的控制端耦接主電源。第一電晶體的第一端連接切換電路。第一電晶體的第二端接地。In an embodiment, the switching circuit includes a switching element. The trigger circuit includes a first transistor. The control end of the first transistor is coupled to the main power supply. The first end of the first transistor is connected to the switching circuit. The second end of the first transistor is grounded.

在實施例中，觸發電路更包含分壓電路。分壓電路連接第一電晶體的控制端並耦接主電源。分壓電路配置以分壓主電源以產生一分壓電壓輸入至第一電晶體的控制端。In an embodiment, the trigger circuit further includes a voltage divider circuit. The voltage divider circuit is connected to the control terminal of the first transistor and coupled to the main power supply. The voltage divider circuit is configured to divide the main power supply to generate a divided voltage input to the control terminal of the first transistor.

在實施例中，分壓電路包含第一電阻以及第二電阻。第一電阻的第一端耦接主電源。第一電阻的第二端連接第二電阻的第一端。第二電阻的第二端接地。第一電晶體的控制端連接第一電阻的第二端與第二電阻的第一端之間的節點。In an embodiment, the voltage divider circuit includes a first resistor and a second resistor. The first end of the first resistor is coupled to the main power supply. The second end of the first resistor is connected to the first end of the second resistor. The second end of the second resistor is grounded. The control terminal of the first transistor is connected to the node between the second terminal of the first resistor and the first terminal of the second resistor.

在實施例中，切換電路包含第二電晶體以及第三電晶體。第二電晶體的控制端以及第三電晶體的控制端連接第一電晶體的第一端。第二電晶體的第一端連接主控電路。第二電晶體的第二端連接第三電晶體的第一端。第三電晶體的第二端連接馬達控制電路。In an embodiment, the switching circuit includes a second transistor and a third transistor. The control terminal of the second transistor and the control terminal of the third transistor are connected to the first terminal of the first transistor. The first end of the second transistor is connected to the main control circuit. The second end of the second transistor is connected to the first end of the third transistor. The second end of the third transistor is connected to the motor control circuit.

在實施例中，第二電晶體的控制端以及第三電晶體的控制端。次電源的電力小於主電源的電力。In an embodiment, the control terminal of the second transistor and the control terminal of the third transistor. The power of the secondary power source is less than the power of the primary power source.

在實施例中，所述的馬達控制系統更包含第三電阻。第三電阻。第三電阻的第一端耦接次電源。第三電阻的第二端連接第一電晶體的第一端。In an embodiment, the motor control system further includes a third resistor. third resistor. The first end of the third resistor is coupled to the secondary power supply. The second end of the third resistor is connected to the first end of the first transistor.

在實施例中，所述的馬達控制系統更包含第四電阻。第四電阻。主控電路透過第四電阻連接第二電晶體的第一端。In an embodiment, the motor control system further includes a fourth resistor. Fourth resistor. The main control circuit is connected to the first end of the second transistor through a fourth resistor.

在實施例中，所述的馬達控制系統更包含開關元件。此開關元件的第一端連接切換電路以及主控電路之間的節點。此開關元件的第二端接地。開關元件的控制端連接馬達控制電路。In an embodiment, the motor control system further includes a switch element. The first end of the switching element is connected to the node between the switching circuit and the main control circuit. The second end of the switching element is grounded. The control end of the switching element is connected to the motor control circuit.

如上所述，本創作提供一種馬達控制系統。在馬達持續接收電力而進行運轉的過程中，馬達控制系統與外部系統之間的連接斷開，此時馬達控制系統與外部系統之間無法進行傳輸作業，以避免影響馬達運轉。相反地，當馬達停止接收電力而停止運轉時，則馬達控制系統與外部系統相連接，此時馬達控制系統與外部系統之間允許進行傳輸作業，例如外部系統傳輸欲燒錄的資料至馬達控制系統。As described above, the present creation provides a motor control system. When the motor continues to receive power and operates, the connection between the motor control system and the external system is disconnected, and the transmission operation between the motor control system and the external system cannot be performed at this time, so as to avoid affecting the operation of the motor. Conversely, when the motor stops receiving power and stops running, the motor control system is connected to the external system. At this time, transmission operations are allowed between the motor control system and the external system, for example, the external system transmits the data to be programmed to the motor control system. system.

為使能更進一步瞭解本創作的特徵及技術內容，請參閱以下有關本創作的詳細說明與圖式，然而所提供的圖式僅用於提供參考與說明，並非用來對本創作加以限制。In order to further understand the features and technical content of this creation, please refer to the following detailed descriptions and drawings about this creation, however, the provided drawings are only for reference and description, and are not intended to limit this creation.

以下是通過特定的具體實施例來說明本創作的實施方式，本領域技術人員可由本說明書所公開的內容瞭解本創作的優點與效果。本創作可通過其他不同的具體實施例加以施行或應用，本說明書中的各項細節也可基於不同觀點與應用，在不背離本創作的構思下進行各種修改與變更。另外，本創作的附圖僅為簡單示意說明，並非依實際尺寸的描繪，事先聲明。以下的實施方式將進一步詳細說明本創作的相關技術內容，但所公開的內容並非用以限制本創作的保護範圍。另外，本文中所使用的術語“或”，應視實際情況可能包含相關聯的列出項目中的任一個或者多個的組合。The following are specific specific examples to illustrate the implementation of the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this creation. In addition, the drawings in this creation are only for simple schematic illustration, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present creation in detail, but the disclosed contents are not intended to limit the protection scope of the present creation. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items as the case may be.

[第一實施例][First Embodiment]

請參閱圖1和圖2，其為本創作第一實施例的馬達控制系統的電路布局圖。本實施例的馬達控制系統設置於包含馬達控制電路10、觸發電路20以及切換電路41，設置於馬達MT的機殼內。Please refer to FIG. 1 and FIG. 2 , which are circuit layout diagrams of the motor control system according to the first embodiment of the invention. The motor control system of this embodiment is provided in the casing of the motor MT including the motor control circuit 10 , the trigger circuit 20 and the switching circuit 41 .

本實施例的馬達控制系統的馬達控制電路10可透過多條纜線與外部系統的主控電路90或其他電路相互連接。這些纜線可包含用以將外部系統的電力供應裝置的電力傳輸至馬達控制系統的纜線、用以傳輸指示馬達控制系統的馬達控制電路10控制馬達MT運作的(脈波、控制)訊號、指令和資料等的纜線CB，以及用於反饋(馬達控制系統提供的)馬達MT的運作狀態資訊至外部系統的纜線等。The motor control circuit 10 of the motor control system of the present embodiment can be interconnected with the main control circuit 90 of the external system or other circuits through a plurality of cables. These cables may include cables for transmitting power from the power supply device of the external system to the motor control system, for transmitting (pulse, control) signals instructing the motor control circuit 10 of the motor control system to control the operation of the motor MT, A cable CB for commands and data, etc., and a cable for feedback (provided by the motor control system) of the operating status information of the motor MT to an external system, etc.

值得注意的是，在本創作中，為了避免外部系統對馬達控制系統執行燒錄或其他作業而影響馬達MT的運轉，將馬達控制系統的馬達控制電路10與外部系統的主控電路90之間的其中一條纜線CB上接上附加電路。此附加電路包含觸發電路20以及切換電路41。It is worth noting that, in this creation, in order to prevent the external system from performing programming or other operations on the motor control system and affecting the operation of the motor MT, the connection between the motor control circuit 10 of the motor control system and the main control circuit 90 of the external system is An additional circuit is connected to one of the cables CB. The additional circuit includes the flip-flop circuit 20 and the switching circuit 41 .

若有需要，附加電路可包含電位轉換器70。電位轉換器70可為單向電位轉換器。電位轉換器70可通過纜線CB從外部系統的電力供應裝置接收電力。電位轉換器70可轉換接收到的電力，例如將波形振幅較大的高電位電力轉換為與馬達MT的電路元件可承受、適用的波形振幅較小的低電位電力(此電力可主電源VCC)供應至馬達控制電路10。或者，電位轉換器70可為雙向電位轉換器。雙向電位轉換器可將電力從低電位轉為高電位，並將轉換後的電力供應至主控電路90。此雙向電位轉換器可作為中介緩衝，透過電位轉換，使雙邊訊號可相容且雙向流通。If desired, additional circuitry may include a potential shifter 70 . The potential converter 70 may be a unidirectional potential converter. The potential converter 70 may receive power from a power supply device of an external system through the cable CB. The potential converter 70 can convert the received power, for example, convert a high-potential power with a large waveform amplitude into a low-potential power with a small waveform amplitude that can be tolerated by the circuit elements of the motor MT (this power can be the main power supply VCC) supplied to the motor control circuit 10 . Alternatively, the level converter 70 may be a bidirectional level converter. The bidirectional potential converter can convert power from a low level to a high level, and supply the converted power to the main control circuit 90 . The bidirectional potential converter can be used as an intermediate buffer, and through the potential conversion, the bilateral signals can be compatible and flow bidirectionally.

僅有電位轉換器70可能無法完全斷開兩端接線的開關閘設計以避免兩邊訊號互相干擾。此時可設置觸發電路20以及切換電路41。Only the potential converter 70 may not be able to completely disconnect the switch gate design of the two-terminal connection to avoid mutual interference of the two-side signals. At this time, the trigger circuit 20 and the switching circuit 41 can be provided.

舉例而言，如圖1所示，切換電路41可包含一開關元件。若未設有電位轉換器70，此切換電路41的開關元件的第一端可直接連接纜線CB的第一端，通過纜線CB可連接外部系統的主控電路90。若設有電位轉換器70，切換電路41的開關元件的第一端可連接電位轉換器70的第一端。電位轉換器70的第二端連接纜線CB的第一端。另外，此切換電路41的開關元件的第二端連接馬達控制電路10。For example, as shown in FIG. 1 , the switching circuit 41 may include a switching element. If the potential converter 70 is not provided, the first end of the switching element of the switching circuit 41 can be directly connected to the first end of the cable CB, and the main control circuit 90 of the external system can be connected through the cable CB. If the potential converter 70 is provided, the first end of the switching element of the switching circuit 41 can be connected to the first end of the potential converter 70 . The second end of the potential converter 70 is connected to the first end of the cable CB. In addition, the second end of the switching element of the switching circuit 41 is connected to the motor control circuit 10 .

觸發電路20可直接耦接馬達MT的主電源VCC，以直接取得馬達MT的主電源VCC。或者，觸發電路20可連接馬達控制電路10以從馬達控制電路10取得馬達MT的主電源VCC。本文所述的主電力VCC可為橋式電路70連接的主電源VCC，或是實務上可為用於供應馬達控制電路10、驅動電路30或其他馬達MT配置的電路元件運作所需電力的電源。The trigger circuit 20 can be directly coupled to the main power VCC of the motor MT to directly obtain the main power VCC of the motor MT. Alternatively, the trigger circuit 20 can be connected to the motor control circuit 10 to obtain the main power VCC of the motor MT from the motor control circuit 10 . The main power VCC described herein may be the main power VCC to which the bridge circuit 70 is connected, or may actually be the power supply for supplying the power required for the operation of the motor control circuit 10 , the driving circuit 30 or other circuit elements of the motor MT configuration. .

馬達控制電路10可連接驅動電路30。驅動電路30可連接橋式電路70。在本實施例中，如圖2所示，馬達MT為單相馬達，橋式電路70為H橋式電路，但應理解，在此僅舉例說明，本創作不以此為限。The motor control circuit 10 may be connected to the drive circuit 30 . The driving circuit 30 may be connected to the bridge circuit 70 . In this embodiment, as shown in FIG. 2 , the motor MT is a single-phase motor, and the bridge circuit 70 is an H-bridge circuit, but it should be understood that this is only an example, and the present invention is not limited thereto.

如圖2所示，橋式電路70可包含第一上橋電晶體TM1、第一下橋電晶體TM2、第二上橋電晶體TM3以及第二下橋電晶體TM4。As shown in FIG. 2 , the bridge circuit 70 may include a first upper bridge transistor TM1 , a first lower bridge transistor TM2 , a second upper bridge transistor TM3 and a second lower bridge transistor TM4 .

第一上橋電晶體TM1的控制端、第一下橋電晶體TM2的控制端、第二上橋電晶體TM3的控制端以及第二下橋電晶體TM4的控制端。第一上橋電晶體TM1的第一端以及第二上橋電晶體TM3的第一端耦接主電源VCC。第一上橋電晶體TM1的第二端連接第一下橋電晶體TM2的第一端。第二上橋電晶體TM3的第二端連接第二下橋電晶體TM4的第一端。第一下橋電晶體TM2的第二端以及第二下橋電晶體TM4的第二端接地。The control terminal of the first upper bridge transistor TM1, the control terminal of the first lower bridge transistor TM2, the control terminal of the second upper bridge transistor TM3, and the control terminal of the second lower bridge transistor TM4. The first terminal of the first high-bridge transistor TM1 and the first terminal of the second high-bridge transistor TM3 are coupled to the main power supply VCC. The second end of the first upper bridge transistor TM1 is connected to the first end of the first lower bridge transistor TM2. The second end of the second upper bridge transistor TM3 is connected to the first end of the second lower bridge transistor TM4. The second end of the first lower bridge transistor TM2 and the second end of the second lower bridge transistor TM4 are grounded.

在本實施例中，馬達MT的電阻R的第一端連接第一上橋電晶體TM1的第二端與第一下橋電晶體TM2的第一端之間的節點。馬達MT的電阻R的第二端連接線圈電感L的第一端。線圈電感L的第二端連接第二上橋電晶體TM3的第二端與第二下橋電晶體TM4的第一端之間的節點。In this embodiment, the first end of the resistor R of the motor MT is connected to the node between the second end of the first upper bridge transistor TM1 and the first end of the first lower bridge transistor TM2. The second end of the resistor R of the motor MT is connected to the first end of the coil inductance L. The second end of the coil inductance L is connected to the node between the second end of the second upper bridge transistor TM3 and the first end of the second lower bridge transistor TM4.

實務上，本實施例的馬達控制系統可應用至三相馬達。橋式電路70可包含更多電晶體，此為本領域熟知技術，不在此贅述。In practice, the motor control system of this embodiment can be applied to a three-phase motor. The bridge circuit 70 may include more transistors, which is well known in the art and will not be described in detail here.

值得注意的是，在馬達控制電路10控制驅動電路30驅動橋式電路70以控制馬達MT運轉的過程中，主控電路90與馬達控制電路10不進行任何傳輸作業，以避免影響馬達控制電路10對橋式電路70的控制，進而影響馬達MT的運轉。It should be noted that, in the process that the motor control circuit 10 controls the driving circuit 30 to drive the bridge circuit 70 to control the operation of the motor MT, the main control circuit 90 and the motor control circuit 10 do not perform any transmission operation to avoid affecting the motor control circuit 10 The control of the bridge circuit 70 further affects the operation of the motor MT.

觸發電路20可直接取得馬達MT(的橋式電路70)所接收的主電源VCC的電力，或是馬達控制電路10透過驅動電路30取得主電源VCC。當觸發電路20接收到的主電源VCC的電力大於電力門檻值時，觸發電路20輸出第一觸發訊號，例如但不限於此第一觸發訊號為低準位。此時，馬達MT的橋式電路接收到大於電力門檻值的主電源VCC，使得馬達MT正常運轉。The trigger circuit 20 can directly obtain the power of the main power VCC received by the motor MT (the bridge circuit 70 of the bridge circuit 70 ), or the motor control circuit 10 can obtain the main power VCC through the driving circuit 30 . When the power of the main power VCC received by the trigger circuit 20 is greater than the power threshold, the trigger circuit 20 outputs a first trigger signal, for example but not limited to, the first trigger signal is at a low level. At this time, the bridge circuit of the motor MT receives the main power VCC greater than the power threshold value, so that the motor MT operates normally.

當切換電路41從觸發電路20接收到第一觸發訊號時，切換電路41的開關元件依據第一觸發訊號關閉，以斷開馬達控制電路10與主控電路90之間的連接。此時，馬達控制電路10與主控電路90之間無法進行傳輸。When the switch circuit 41 receives the first trigger signal from the trigger circuit 20 , the switch element of the switch circuit 41 is turned off according to the first trigger signal to disconnect the connection between the motor control circuit 10 and the main control circuit 90 . At this time, transmission between the motor control circuit 10 and the main control circuit 90 cannot be performed.

相反地，當觸發電路20接收到的主電源VCC不大於電力門檻值時，觸發電路20輸出不同於第一觸發訊號的第二觸發訊號，例如但不限於此第二觸發訊號為高準位的控制訊號。此時，馬達MT的橋式電路未能接收到主電源VCC的大於電力門檻值的電力(即電力不足)，導致馬達MT無法運轉。Conversely, when the main power VCC received by the trigger circuit 20 is not greater than the power threshold value, the trigger circuit 20 outputs a second trigger signal different from the first trigger signal, for example, but not limited to, the second trigger signal is a high level control signal. At this time, the bridge circuit of the motor MT cannot receive the power greater than the power threshold value of the main power source VCC (ie, the power is insufficient), so that the motor MT cannot operate.

當切換電路41從觸發電路20接收到第二觸發訊號時，切換電路41的開關元件依據第二觸發訊號開啟，馬達控制電路10與主控電路90通過切換電路41(以及電位轉換器70)相互連接。此時，馬達控制電路10與主控電路90之間能夠進行傳輸。When the switch circuit 41 receives the second trigger signal from the trigger circuit 20, the switch element of the switch circuit 41 is turned on according to the second trigger signal, and the motor control circuit 10 and the main control circuit 90 communicate with each other through the switch circuit 41 (and the potential converter 70). connect. At this time, transmission can be performed between the motor control circuit 10 and the main control circuit 90 .

當本實施例的馬達控制系統的馬達控制電路10與外部系統的主控電路90相互連接時，外部系統的主控電路90可傳輸用於控制馬達運作的控制指令、訊號、資料等至馬達控制電路10，或從馬達控制電路10接收反饋的馬達MT的運作狀態等相關資訊。當馬達MT停止運轉時，外部系統的主控電路90(例如包含燒錄電路)傳輸欲燒錄的(更新)資料至馬達控制電路10(所包含的暫存器)。若馬達控制電路10(所包含的暫存器)原本儲存有舊資料，更新資料可取代原本馬達控制電路10(的暫存器)所儲存的舊資料，以進行資料更新。在馬達MT開始運轉時，馬達控制電路10可依據更新後資料，以控制驅動電路30驅動橋式電路7，進而控制馬達MT運轉。When the motor control circuit 10 of the motor control system of the present embodiment and the main control circuit 90 of the external system are connected to each other, the main control circuit 90 of the external system can transmit control commands, signals, data, etc. for controlling the operation of the motor to the motor control system The circuit 10 , or receives feedback from the motor control circuit 10 about the operating status of the motor MT and other related information. When the motor MT stops running, the main control circuit 90 of the external system (for example, including the programming circuit) transmits the data to be programmed (updated) to the motor control circuit 10 (including the register). If the motor control circuit 10 (the register included in it) originally stored the old data, the updated data can replace the old data stored in the original motor control circuit 10 (the register included in the register) to update the data. When the motor MT starts to run, the motor control circuit 10 can control the driving circuit 30 to drive the bridge circuit 7 according to the updated data, thereby controlling the motor MT to run.

另外，本實施例的馬達控制系統可包含開關元件SW11。開關元件SW11的第一端可設置在馬達MT的機殼內，並可連接纜線CB的第一端。開關元件SW11的第二端可接地。開關元件SW11的控制端可連接馬達控制電路10。馬達控制電路10可(依據馬達MT的反饋資訊)控制開關元件SW11運作。In addition, the motor control system of this embodiment may include a switching element SW11. The first end of the switching element SW11 may be disposed in the casing of the motor MT, and may be connected to the first end of the cable CB. The second end of the switching element SW11 may be grounded. The control terminal of the switching element SW11 can be connected to the motor control circuit 10 . The motor control circuit 10 can control the operation of the switching element SW11 (according to the feedback information of the motor MT).

[第二實施例][Second Embodiment]

請參閱圖3，其為本創作第二實施例的馬達控制系統的電路布局圖。與上述相同或相似內容不在下文中贅述。Please refer to FIG. 3 , which is a circuit layout diagram of a motor control system according to a second embodiment of the present invention. The same or similar content as the above will not be repeated in the following.

本實施例的馬達控制系統可包含馬達控制電路10、觸發電路22、驅動電路30、切換電路42、橋式電路70以及開關元件SW11，但本創作不以此為限。實務上，可適當省略設置部分電路元件。The motor control system of this embodiment may include a motor control circuit 10 , a trigger circuit 22 , a driving circuit 30 , a switching circuit 42 , a bridge circuit 70 and a switching element SW11 , but the present invention is not limited thereto. In practice, some circuit elements can be appropriately omitted.

驅動電路30可連接馬達控制電路10以及橋式電路70。橋式電路70可連接馬達電感線圈80，例如橋式電路70的多個電晶體分別連接上述的單相馬達MT的單個電感線圈或三相馬達的U、V、W的三相線圈。馬達控制電路10配置以控制驅動電路30驅動橋式電路70。The driving circuit 30 can be connected to the motor control circuit 10 and the bridge circuit 70 . The bridge circuit 70 can be connected to the motor inductance coil 80 , for example, multiple transistors of the bridge circuit 70 are respectively connected to the single inductance coil of the single-phase motor MT or the three-phase coils of U, V, and W of the three-phase motor. The motor control circuit 10 is configured to control the drive circuit 30 to drive the bridge circuit 70 .

值得注意的是，觸發電路22可包含第一電晶體T1。第一電晶體T1的控制端耦接主電源VCC。第一電晶體T1的第一端連接切換電路42。第一電晶體T1的第二端接地。It should be noted that the trigger circuit 22 may include the first transistor T1. The control terminal of the first transistor T1 is coupled to the main power supply VCC. The first end of the first transistor T1 is connected to the switching circuit 42 . The second end of the first transistor T1 is grounded.

若有需要，觸發電路22可更包含分壓電路50。分壓電路50連接第一電晶體T1的控制端，並耦接主電源VCC。分壓電路50配置以分壓主電源VCC以產生一分壓電壓輸入至第一電晶體T1的控制端。If necessary, the trigger circuit 22 may further include a voltage divider circuit 50 . The voltage divider circuit 50 is connected to the control terminal of the first transistor T1 and is coupled to the main power supply VCC. The voltage dividing circuit 50 is configured to divide the main power supply VCC to generate a divided voltage which is input to the control terminal of the first transistor T1.

例如，分壓電路50可包含第一電阻R1以及第二電阻R2。第一電阻R1的第一端耦接主電源VCC。第一電阻R1的第二端連接第二電阻R2的第一端。第二電阻R2的第二端接地。第一電晶體T1的控制端連接第一電阻R1的第二端與第二電阻R2的第一端之間的節點。For example, the voltage dividing circuit 50 may include a first resistor R1 and a second resistor R2. The first end of the first resistor R1 is coupled to the main power VCC. The second end of the first resistor R1 is connected to the first end of the second resistor R2. The second end of the second resistor R2 is grounded. The control terminal of the first transistor T1 is connected to the node between the second terminal of the first resistor R1 and the first terminal of the second resistor R2.

本實施例的切換電路42可包含第二電晶體T2以及第三電晶體T3，但本創作不以此為限。The switching circuit 42 of this embodiment may include a second transistor T2 and a third transistor T3, but the present invention is not limited thereto.

第二電晶體T2的控制端以及第三電晶體T3的控制端連接第一電晶體T1的第一端耦接次電源LV。次電源LV的電力小於主電源VCC的電力。The control terminal of the second transistor T2 and the control terminal of the third transistor T3 are connected to the first terminal of the first transistor T1 and coupled to the secondary power supply LV. The power of the secondary power source LV is smaller than the power of the main power source VCC.

若有需要，馬達控制系統可更包含第三電阻R3。第三電阻R3的第一端耦接次電源LV。第三電阻R3的第二端連接第一電晶體T1的第一端以及第二電晶體T2的控制端。If necessary, the motor control system may further include a third resistor R3. The first end of the third resistor R3 is coupled to the secondary power source LV. The second end of the third resistor R3 is connected to the first end of the first transistor T1 and the control end of the second transistor T2.

第二電晶體T2的第一端連接纜線CB的第一端。纜線CB的第二端連接主控電路90。第二電晶體T2的第二端連接第三電晶體T3的第一端。第三電晶體T3的第二端連接馬達控制電路10。The first end of the second transistor T2 is connected to the first end of the cable CB. The second end of the cable CB is connected to the main control circuit 90 . The second end of the second transistor T2 is connected to the first end of the third transistor T3. The second end of the third transistor T3 is connected to the motor control circuit 10 .

若有需要，在纜線CB的第二端與主控電路90之間可設置第四電阻R4。詳言之，第四電阻R4的第一端連接纜線CB的第二端。第四電阻R4的第二端連接主控電路90。If necessary, a fourth resistor R4 can be provided between the second end of the cable CB and the main control circuit 90 . Specifically, the first end of the fourth resistor R4 is connected to the second end of the cable CB. The second end of the fourth resistor R4 is connected to the main control circuit 90 .

馬達的主電源VCC的電壓(經分壓電路50分壓後)輸入第一電晶體T1的控制端。若主電源VCC經分壓電路50分壓，則輸入第一電晶體T1的控制端的電壓為第二電阻R2的電壓。第一電阻R1的阻值以及第二電阻R2的阻值可依實際需求設置。The voltage of the main power VCC of the motor (after being divided by the voltage dividing circuit 50 ) is input to the control terminal of the first transistor T1 . If the main power VCC is divided by the voltage dividing circuit 50, the voltage input to the control terminal of the first transistor T1 is the voltage of the second resistor R2. The resistance value of the first resistor R1 and the resistance value of the second resistor R2 can be set according to actual requirements.

當馬達的主電源VCC的電壓或其分壓電壓大於一電力門檻值時，第一電晶體T1導通，馬達取得運轉所需的主電源VCC的足夠電力。此時，第一電晶體T1將切換電路42的第二電晶體T2的控制端以及切換電路42的第三電晶體T3的控制端接地。其結果為，第二電晶體T2的控制端以及第三電晶體T3的控制端的電壓為零，使得第二電晶體T2以及第三電晶體T3兩者皆不導通，導致馬達控制電路10與主控電路90之間的連接/導通路徑斷開。When the voltage of the main power VCC of the motor or its divided voltage is greater than a power threshold, the first transistor T1 is turned on, and the motor obtains sufficient power from the main power VCC required for operation. At this time, the first transistor T1 grounds the control terminal of the second transistor T2 of the switching circuit 42 and the control terminal of the third transistor T3 of the switching circuit 42 . As a result, the voltages of the control terminal of the second transistor T2 and the control terminal of the third transistor T3 are zero, so that the second transistor T2 and the third transistor T3 are both non-conductive, resulting in the motor control circuit 10 and the main The connection/conduction path between the control circuits 90 is disconnected.

相反地，當馬達的主電源VCC的電壓或其分壓電壓不大於電力門檻值時，第一電晶體T1截止，馬達未能取得運轉所需的主電源VCC的電力而無法運轉。此時，次電源LV的電力輸入至切換電路42的第二電晶體T2的控制端以及切換電路42的第三電晶體T3的控制端，使得第二電晶體T2以及第三電晶體T3兩者皆導通。此時，切換電路42將馬達控制電路10與主控電路90之間相連接通過切換電路42的第二電晶體T2以及第三電晶體T3。Conversely, when the voltage of the main power VCC of the motor or its divided voltage is not greater than the power threshold, the first transistor T1 is turned off, and the motor cannot obtain the power of the main power VCC required for operation and cannot operate. At this time, the power of the secondary power supply LV is input to the control terminal of the second transistor T2 of the switching circuit 42 and the control terminal of the third transistor T3 of the switching circuit 42, so that both the second transistor T2 and the third transistor T3 are All are on. At this time, the switching circuit 42 connects the motor control circuit 10 and the main control circuit 90 through the second transistor T2 and the third transistor T3 of the switching circuit 42 .

或者，當馬達控制電路10接收到主控電路90的轉速命令時，馬達控制電路10可依據此轉速命令，維持或斷開馬達控制電路10與主控電路90之間的連接。Alternatively, when the motor control circuit 10 receives a rotational speed command from the main control circuit 90 , the motor control circuit 10 can maintain or disconnect the connection between the motor control circuit 10 and the main control circuit 90 according to the rotational speed command.

若有需要，馬達控制系統可包含檢測電路，此檢測電路可設置在馬達MT的機殼內。檢測電路可(通過第四電阻R4)連接主控電路90，並可(通過切換電路42)連接馬達控制電路10。檢測電路可檢測外部系統的主控電路90的轉速命令所指示的轉速值。馬達控制電路10可依據檢測電路所檢測到的轉速命令的轉速值，維持或斷開馬達控制電路10與主控電路90之間的連接。If necessary, the motor control system may include a detection circuit, and the detection circuit may be provided in the casing of the motor MT. The detection circuit can be connected to the main control circuit 90 (through the fourth resistor R4 ) and can be connected to the motor control circuit 10 (through the switching circuit 42 ). The detection circuit can detect the rotation speed value indicated by the rotation speed command of the main control circuit 90 of the external system. The motor control circuit 10 can maintain or disconnect the connection between the motor control circuit 10 and the main control circuit 90 according to the rotational speed value of the rotational speed command detected by the detection circuit.

詳言之，當馬達控制電路10接收到的轉速命令指示的轉速值大於轉速門檻值例如零值時，馬達控制電路10依據此轉速命令以控制驅動電路30驅動橋式電路70運作，進而驅動馬達MT運轉。相反地，當馬達控制電路10接收到的轉速命令指示的轉速值小於轉速門檻值例如零值，馬達控制電路10則不驅動或停止驅動馬達MT運轉。Specifically, when the rotational speed value indicated by the rotational speed command received by the motor control circuit 10 is greater than a rotational speed threshold value, such as a zero value, the motor control circuit 10 controls the driving circuit 30 to drive the bridge circuit 70 to operate according to the rotational speed command, thereby driving the motor MT runs. Conversely, when the rotational speed value indicated by the rotational speed command received by the motor control circuit 10 is smaller than the rotational speed threshold value, eg, a zero value, the motor control circuit 10 does not drive or stop the driving motor MT.

也就是說，可依據外部系統的主控電路90的轉速命令所指示的轉速值或馬達MT的橋式電路接收的主電源VCC的電量，來控制馬達控制電路10與主控電路90之間的連接狀態。That is to say, the rotation speed between the motor control circuit 10 and the main control circuit 90 can be controlled according to the rotation speed value indicated by the rotation speed command of the main control circuit 90 of the external system or the power of the main power supply VCC received by the bridge circuit of the motor MT. Connection Status.

綜上所述，本創作提供一種馬達控制系統。在馬達持續接收電力而進行運轉的過程中，馬達控制系統與外部系統之間的連接斷開，此時馬達控制系統與外部系統之間無法進行傳輸作業，以避免影響馬達運轉。相反地，當馬達停止接收電力而停止運轉時，則馬達控制系統與外部系統相連接，此時馬達控制系統與外部系統之間允許進行傳輸作業，例如外部系統傳輸欲燒錄的資料至馬達控制系統。To sum up, this creation provides a motor control system. When the motor continues to receive power and operates, the connection between the motor control system and the external system is disconnected, and the transmission operation between the motor control system and the external system cannot be performed at this time, so as to avoid affecting the operation of the motor. Conversely, when the motor stops receiving power and stops running, the motor control system is connected to the external system. At this time, transmission operations are allowed between the motor control system and the external system, for example, the external system transmits the data to be programmed to the motor control system. system.

以上所公開的內容僅為本創作的優選可行實施例，並非因此侷限本創作的申請專利範圍，所以凡是運用本創作說明書及圖式內容所做的等效技術變化，均包含於本創作的申請專利範圍內。The contents disclosed above are only the preferred and feasible embodiments of this creation, and are not intended to limit the scope of the patent application of this creation. Therefore, any equivalent technical changes made by using the descriptions and drawings of this creation are included in the application for this creation. within the scope of the patent.

10:馬達控制電路 20、22:觸發電路 41、42:切換電路 70:電位轉換器 SW11:開關元件 CB:纜線 90:主控電路 30:驅動電路 VCC:主電源 70:橋式電路 TM1:第一上橋電晶體 TM2:第一下橋電晶體 TM3:第二上橋電晶體 TM4:第二下橋電晶體 MT:馬達 R:電阻 L:電感 T1:第一電晶體 T2:第二電晶體 T3:第三電晶體 50:分壓電路 R1:第一電阻 R2:第二電阻 R3:第三電阻 R4:第四電阻 LV:次電源 80:馬達電感線圈 10: Motor control circuit 20, 22: Trigger circuit 41, 42: Switching circuit 70: Potential converter SW11: Switching element CB: cable 90: main control circuit 30: Drive circuit VCC: main power 70: Bridge circuit TM1: The first bridge transistor TM2: The first lower bridge transistor TM3: The second high-bridge transistor TM4: The second lower bridge transistor MT: Motor R: resistance L: Inductance T1: first transistor T2: Second transistor T3: The third transistor 50: Voltage divider circuit R1: first resistor R2: Second resistor R3: the third resistor R4: Fourth resistor LV: Secondary Power 80: Motor inductor coil

圖1為本創作第一實施例的馬達控制系統的電路布局圖。FIG. 1 is a circuit layout diagram of a motor control system according to a first embodiment of the invention.

圖2為本創作第一實施例的馬達控制系統的電路布局圖。FIG. 2 is a circuit layout diagram of the motor control system according to the first embodiment of the invention.

圖3為本創作第二實施例的馬達控制系統的電路布局圖。FIG. 3 is a circuit layout diagram of a motor control system according to a second embodiment of the invention.

10:馬達控制電路 10: Motor control circuit

20:觸發電路 20: Trigger circuit

41:切換電路 41: Switching circuit

70:電位轉換器 70: Potential converter

SW11:開關元件 SW11: Switching element

CB:纜線 CB: cable

90:主控電路 90: main control circuit

Claims (10)

一種馬達控制系統，設置於一馬達內，並包含： 一觸發電路，該觸發電路的輸入端耦接一主電源，當該主電源的電力大於一電力門檻值時，該觸發電路輸出一第一觸發訊號，當該主電源的電力不大於該電力門檻值時，該觸發電路輸出一第二觸發訊號； 一馬達控制電路；以及 一切換電路，連接在該馬達控制電路以及一外部系統的一主控電路之間，並連接該觸發電路； 其中，當該切換電路從該觸發電路接收到該第一觸發訊號時，該切換電路依據該第一觸發訊號，斷開該馬達控制電路與該主控電路之間的連接，使該馬達控制電路與該主控電路之間無法進行傳輸； 其中，當該切換電路從該觸發電路接收到該第二觸發訊號時，該切換電路依據該第二觸發訊號，將該馬達控制電路與該主控電路相連接，以允許該馬達控制電路與該主控電路之間的傳輸； 其中，當該馬達控制電路從該主控電路接收到一轉速命令時，該馬達控制電路依據該轉速命令，維持或斷開該馬達控制電路與該主控電路之間的連接。 A motor control system is provided in a motor and includes: a trigger circuit, the input end of the trigger circuit is coupled to a main power source, when the power of the main power source is greater than a power threshold, the trigger circuit outputs a first trigger signal, when the power of the main power source is not greater than the power threshold value, the trigger circuit outputs a second trigger signal; a motor control circuit; and a switching circuit, connected between the motor control circuit and a main control circuit of an external system, and connected to the trigger circuit; Wherein, when the switch circuit receives the first trigger signal from the trigger circuit, the switch circuit disconnects the connection between the motor control circuit and the main control circuit according to the first trigger signal, so that the motor control circuit There is no transmission with the main control circuit; Wherein, when the switch circuit receives the second trigger signal from the trigger circuit, the switch circuit connects the motor control circuit with the main control circuit according to the second trigger signal, so as to allow the motor control circuit to communicate with the main control circuit. Transmission between main control circuits; Wherein, when the motor control circuit receives a rotational speed command from the main control circuit, the motor control circuit maintains or disconnects the connection between the motor control circuit and the main control circuit according to the rotational speed command. 如請求項1所述的馬達控制系統，其中該切換電路包含一開關元件，該開關元件的第一端連接該主控電路，該開關元件的第二端連該馬達控制電路，該開關元件的控制端連接該觸發電路的輸出端。The motor control system of claim 1, wherein the switching circuit comprises a switching element, a first end of the switching element is connected to the main control circuit, a second end of the switching element is connected to the motor control circuit, and the switching element is connected to the motor control circuit. The control end is connected to the output end of the trigger circuit. 如請求項1所述的馬達控制系統，其中該觸發電路包含一第一電晶體，該第一電晶體的控制端耦接該主電源，該第一電晶體的第一端連接該切換電路，該第一電晶體的第二端接地。The motor control system of claim 1, wherein the trigger circuit comprises a first transistor, a control end of the first transistor is coupled to the main power supply, and a first end of the first transistor is connected to the switching circuit, The second end of the first transistor is grounded. 如請求項3所述的馬達控制系統，其中該觸發電路更包含一分壓電路，連接該第一電晶體的控制端並耦接該主電源，配置以分壓該主電源以產生一分壓電壓輸入至該第一電晶體的控制端。The motor control system of claim 3, wherein the trigger circuit further comprises a voltage divider circuit, connected to the control terminal of the first transistor and coupled to the main power supply, configured to divide the main power supply to generate a voltage divider The voltage is input to the control terminal of the first transistor. 如請求項4所述的馬達控制系統，其中該分壓電路包含一第一電阻以及一第二電阻，該第一電阻的第一端耦接該主電源，該第一電阻的第二端連接該第二電阻的第一端，該第二電阻的第二端接地，該第一電晶體的控制端連接該第一電阻的第二端與該第二電阻的第一端之間的節點。The motor control system of claim 4, wherein the voltage divider circuit comprises a first resistor and a second resistor, a first end of the first resistor is coupled to the main power supply, and a second end of the first resistor The first end of the second resistor is connected, the second end of the second resistor is grounded, and the control end of the first transistor is connected to the node between the second end of the first resistor and the first end of the second resistor . 如請求項5所述的馬達控制系統，其中該切換電路包含一第二電晶體以及一第三電晶體，該第二電晶體的控制端以及該第三電晶體的控制端連接該第一電晶體的第一端，該第二電晶體的第一端連接該主控電路，該第二電晶體的第二端連接該第三電晶體的第一端，該第三電晶體的第二端連接該馬達控制電路。The motor control system of claim 5, wherein the switching circuit comprises a second transistor and a third transistor, and a control terminal of the second transistor and a control terminal of the third transistor are connected to the first transistor The first end of the crystal, the first end of the second transistor is connected to the main control circuit, the second end of the second transistor is connected to the first end of the third transistor, the second end of the third transistor Connect the motor control circuit. 如請求項6所述的馬達控制系統，其中該第二電晶體的控制端以及該第三電晶體的控制端耦接一次電源，該次電源的電力小於該主電源的電力。The motor control system of claim 6, wherein the control terminal of the second transistor and the control terminal of the third transistor are coupled to a primary power supply, and the power of the secondary power supply is smaller than the power of the main power supply. 如請求項7所述的馬達控制系統，更包含一第三電阻，該第三電阻的第一端耦接該次電源，該第三電阻的第二端連接該第一電晶體的第一端。The motor control system of claim 7, further comprising a third resistor, a first end of the third resistor is coupled to the secondary power supply, and a second end of the third resistor is connected to the first end of the first transistor . 如請求項8所述的馬達控制系統，更包含一第四電阻，該主控電路透過一第四電阻連接該第二電晶體的第一端。The motor control system of claim 8 further comprises a fourth resistor, and the main control circuit is connected to the first end of the second transistor through a fourth resistor. 如請求項1所述的馬達控制系統，更包含一開關元件，該開關元件的第一端連接該切換電路以及該主控電路之間的節點，該開關元件的第二端接地，該開關元件的控制端連接該馬達控制電路。The motor control system of claim 1, further comprising a switch element, a first end of the switch element is connected to a node between the switching circuit and the main control circuit, a second end of the switch element is grounded, and the switch element The control terminal is connected to the motor control circuit.
TW110212878U 2021-11-02 2021-11-02 Motor controlling system TWM624093U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI818822B (en) * 2022-12-06 2023-10-11 應廣科技股份有限公司 Data setting method of four-external-wire motor control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI818822B (en) * 2022-12-06 2023-10-11 應廣科技股份有限公司 Data setting method of four-external-wire motor control system

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