CN202172378U - DC brushless motor controller using AC electric signal to control motor at constant rotating speed running - Google Patents

DC brushless motor controller using AC electric signal to control motor at constant rotating speed running Download PDF

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CN202172378U
CN202172378U CN2011202814909U CN201120281490U CN202172378U CN 202172378 U CN202172378 U CN 202172378U CN 2011202814909 U CN2011202814909 U CN 2011202814909U CN 201120281490 U CN201120281490 U CN 201120281490U CN 202172378 U CN202172378 U CN 202172378U
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circuit
speed
input
output
motor
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CN2011202814909U
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陈云生
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中山大洋电机制造有限公司
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08Arrangements for controlling the speed or torque of a single motor

Abstract

The utility model relates to a DC brushless motor controller using an AC electric signal to control a motor at constant rotating speed running, comprising a microprocessor and a speed input circuit. The speed input circuit comprises a plurality of unit processing circuits and same-phase follower circuits, each unit processing circuit comprises a step-down rectifying circuit, and an optoelectronic isolator and voltage regulating output processing circuits; an AC electrical signal is inputted to the input end of the step-down rectifying circuit, the step-down rectifying circuit is coupled with the voltage regulating output processing circuits via the optoelectronic isolator, and each voltage regulating output processing circuit outputs various different DC voltages; the output ends of the voltage regulating output processing circuits are in parallel connections and then are connected with the input ends of the same-phase follower circuits, and the output ends of the same-phase follower circuits are in electrical connections with a speed input port of the microprocessor. The speed input circuit of the utility model employs a mode of multi-output and one-input, only occupies one port of the microprocessor, and an isolating circuit is arranged, being wide in application range, fast in running speed, and being safe and reliable.

Description

用交流电信号控制电机恒转速运转的直流无刷电机控制器 AC electrical brushless DC motor controller controls the motor of constant speed operation

技术领域: FIELD:

[0001] 本实用新型涉及用交流电信号控制电机恒转速运转的直流无刷电机控制器。 [0001] The present invention relates to a brushless DC motor controller controls the motor with a constant speed operation of the AC electrical signal. 背景技术: Background technique:

[0002] 目前,能源紧缺,节能成为家电产品一大趋势;目前许多家电产品使用交流电机, 如空调压缩机、风扇、冰箱、健身器械等,采用交流电机驱动耗能较大,不节能,直流无刷电机的出现很好地解决了节能和噪音问题,但若直接用直流无刷电机代替原来的交流电机, 则产品原有的控制系统不适配,若重新开发新的产品控制系统来配合直流无刷电机,则研发成本大大增加,开发周期长,给客户带来不便。 [0002] Currently, energy shortage, saving appliances has become a major trend; Many appliances use AC motors, such as air conditioning compressor, a fan, a refrigerator, fitness equipment, AC motor drive large energy consumption, not energy, DC brushless motor appears a good solution to the energy-saving and noise problems, but if the AC motor directly replace the original DC brushless motor, the product does not fit the original control system, if re-development of new products to match the control system brushless DC motor, the greatly increased research and development costs, long development cycle, the inconvenience to the customer.

[0003] 专利号为:200620063833. 3、名称为:《可以与用户端高压控制系统相连接的直流无刷电机控制器》的实用新型专利公开了一种交流控制系统控制直流无刷电机的方法,但多路的交流电信号经过接口电路处理分别与中央处理器CPU的多个端口连接,该种结构存在如下不足:1)交流高压用户控制系统与微处理器CPU没有隔离电路,存在安全隐患;2) 中央处理器CPU需要不断检测多个I/O端口的信号,影响运行的速度,程序较为复杂;3) — 些直流无刷电机控制器,只有一个速度输入端口VSP,本专利的多路输入并连接中央处理器的多个端口就不适合,因此应用范围较窄。 [0003] Patent number: 2006200638333, entitled: "brushless DC motor controller may control the high voltage system connected with the UE" Utility Model Patent discloses a method of alternating current control system for controlling a brushless DC motor but a plurality of ports connected to an alternating current signal multiplexing circuit for processing via the interface with the central processing unit CPU, respectively, the kind of structure the following defects: 1) high-voltage AC user control system with a microprocessor CPU without isolation circuit, there are security risks ; 2) a central processing unit CPU needs to continuously detect a plurality of I / O signal ports, affect the running speed, the more complex procedures; 3) - some brushless DC motor controller, the VSP is only one input port speed, multi present patent input connected to a central processor and a plurality of ports is not suitable, the application range is narrow.

发明内容: SUMMARY:

[0004] 本实用新型的目的是提供用交流电信号控制电机恒转速运转的直流无刷电机控制器,它的速度输入电路采用多路输入一路输出的方式,只占用微处理器的一个端口,并设置隔离电路,应用范围广,安全可靠,微处理器里面的程序简单,运行速度快。 [0004] The object of the present invention is to provide a constant AC signal to control the motor rotating speed brushless DC motor controller, its speed input circuit by way of the multiplexer input one output, occupies only one microprocessor port, and isolation circuit is provided, a wide range of applications, safe and reliable, the microprocessor program which is simple, fast operation.

[0005] 本实用新型的目的是通过下述技术方案予以实现的。 [0005] The object of the present invention is to be implemented through the following technical scheme.

[0006] 用交流电信号控制电机恒转速运转的直流无刷电机控制器,包括微处理器和速度输入电路,速度输入电路包括多路的单元处理电路和同相跟随电路组成,每路单元处理电路包括降压整流电路、光电隔离器和调压输出处理电路,交流电信号输入到降压整流电路的输入端,降压整流电路与调压输出处理电路之间通过光电隔离器藕合,各路的调压输出处理电路输出多种不同大小的直流电压,各路的调压输出处理电路的输出端并联后连接到同相跟随电路的输入端,同相跟随电路的输出端与微处理器的速度输入端口(VSP)电连接。 [0006] The brushless DC motor controller controls the motor with a constant speed operation AC signal, the circuit comprising a microprocessor and a speed input, speed input circuit includes a multiplexer unit processing circuit and the processing circuit means of each channel follower circuit composed of the same phase, step-down circuit comprises an input rectifier, voltage regulator and optical isolators output processing circuit, an alternating current signal to the buck rectifier circuit input terminal, between the rectifier circuit and the step-down voltage regulator output processing circuit coupling through the optical isolator, the brightest after processing speed regulator circuit outputs a plurality of output DC voltage of different sizes, and the brightest output terminal regulator output processing circuit is connected in parallel to the noninverting input follower circuit, the noninverting output of follower circuit and a microprocessor input port (VSP) are electrically connected.

[0007] 上述所述的微处理器的根据速度输入端口(VSP)的电压大小选择一个转速V0,并控制电机以转速W恒速转动。 [0007] The microprocessor according to the magnitude of the voltage select input port speed (VSP) is a rotational speed V0, and to control the motor rotation speed W at a constant speed.

[0008] 上述所述速度输入电路至少包括3路的单元处理电路。 [0008] The speed of the input circuit means comprising at least three channel processing circuit.

[0009] 上述所述的微处理器是单片机或者数字信号处理器DSP或者是电机专用集成控制芯片。 [0009] The above-described microprocessor or microcontroller or a digital signal processor (DSP) application specific integrated motor control chip.

[0010] 上述电机专用集成控制芯片是电机智能功率芯片TPD412I。 [0010] The motor is a motor specific integrated chip control intelligent power chip TPD412I.

[0011] 上述各路的调压输出处理电路的输出端连接二极管后并联连接到同相跟随电路的输入端。 An output terminal [0011] The brightest regulator output processing circuit is connected in parallel to the noninverting input terminal of the follower circuit connected to the diode.

[0012] 上述的交流电信号是220V的交流输入信号或者是IlOV的交流输入信号。 [0012] The AC signal is AC 220V input signal or AC input signal is a IlOV.

[0013] 本实用新型与现有技术相比具有如下优点:本实用新型的速度输入电路包括多路的单元处理电路和同相跟随电路组成,每路单元处理电路包括降压整流电路、光电隔离器和调压输出处理电路,交流电信号输入到降压整流电路的输入端,降压整流电路与调压输出处理电路之间通过光电隔离器藕合,各路的调压输出处理电路输出多种不同大小的直流电压,各路的调压输出处理电路的输出端并联后连接到同相跟随电路的输入端,同相跟随电路的输出端与微处理器的速度输入端口VSP电连接,微处理器的根据速度输入端口VSP 的电压大小选择一个转速VO,并控制电机以转速VO恒速转动,速度输入电路采用多路输入一路输出的方式,只占用微处理器的一个端口,并设置隔离电路,应用范围广,安全可靠,微处理器里面的程序简单,运行速度快。 [0013] The present invention and the prior art has the following advantages: the present invention comprises a multiple speed of the input circuit of the processing circuit means and follower circuit composed of the same phase, each channel processing circuit means comprises a buck rectifier circuit, optoelectronic isolator and regulating the output of the processing circuit, the step-down AC signal inputted to the input terminal of the rectifier circuit, through the optical isolator coupling, between the output of the step-down voltage regulator rectifier circuit and the output processing circuit regulator output processing circuit brightest more DC voltage of different sizes, and the brightest output terminal regulator output processing circuit is connected in parallel to the noninverting input follower circuit, with the output terminal of the follower circuit connected to the input port of the microprocessor speed VSP power, the microprocessor the speed of the input port of the voltage VSP of a size-selected speed VO, and control the motor rotation speed VO at a constant speed, speed of the input circuit by way of the multiplexer input one output, occupies only one microprocessor port, and an isolation circuit is provided, the application a wide range of safe and reliable microprocessor inside the program is simple, fast.

附图说明: BRIEF DESCRIPTION OF:

[0014] 图1是一种带霍尔传感器的直流无刷电机控制器的方框示意图; [0014] FIG. 1 is a block schematic diagram of a brushless DC motor controller with a Hall sensor;

[0015] 图2是本实用新型的电路方框图; [0015] FIG. 2 is a circuit block diagram of the present invention;

[0016] 图3是图2对应的电路图。 [0016] FIG. 3 is a circuit diagram corresponding to FIG.

具体实施方式: Detailed ways:

[0017] 下面通过具体实施例并结合附图对本实用新型作进一步详细的描述: [0017] The following detailed description and further specific embodiments of the present invention in conjunction with the accompanying drawings of which:

[0018] 如图1所示,它是一种带霍尔传感器的直流无刷电机控制器,包括霍尔传感器、微处理器MCU和集成功率驱动芯片IPM,微处理器MCU的速度输入端口VSP接收来自外部的速度输入信号。 Brushless DC Motor Controller [0018] As illustrated, it is a Hall sensor with 1, comprises a Hall sensor, a microprocessor chip MCU and the IPM integrated power driver, the speed of the input port of the microprocessor MCU VSP receive a speed signal input from the outside.

[0019] 如图2、图3所示,用交流电信号控制电机恒转速运转的直流无刷电机控制器,包括微处理器和速度输入电路,速度输入电路包括多路的单元处理电路和同相跟随电路组成,每路单元处理电路包括降压整流电路、光电隔离器和调压输出处理电路,交流电信号输入到降压整流电路的输入端,降压整流电路与调压输出处理电路之间通过光电隔离器藕合,各路的调压输出处理电路输出多种不同大小的直流电压,各路的调压输出处理电路的输出端并联后连接到同相跟随电路的输入端,同相跟随电路的输出端与微处理器的速度输入端口VSP电连接,微处理器的根据速度输入端口VSP的电压大小选择一个转速VO,并控制电机以转速VO恒速转动,速度输入电路至少包括3路的单元处理电路,微处理器是单片机或者数字信号处理器DSP或者是电机专用集成控制芯片,电机 [0019] As shown in FIG 2, FIG. 3, the alternating current signal with a brushless DC motor controller controls the motor constant speed operation, the input circuit includes a microprocessor and speed, speed of the input circuit includes a multiplexer unit and a processing circuit with phase between follower circuit, each channel processing circuit including an input unit buck rectifier circuit, a voltage regulator and optical isolators output processing circuit, an alternating current signal to the buck rectifier circuit input terminal, the step-down voltage regulator rectifier circuit and the output processing circuit after coupling through the optical isolator, and the brightest of the voltage regulator circuit outputs a plurality of output DC voltage of the processing of different sizes, and the brightest output terminal regulator output processing circuit is connected in parallel to the noninverting input follower circuit, with the phase follower circuit speed output of VSP and a microprocessor electrically connected to the input port, the microprocessor according to the selected speed of the input voltage magnitude of a rotation speed VSP VO port, and control the motor rotation speed VO at a constant speed, speed of the input circuit means includes at least passage 3 a processing circuit, a microprocessor or microcontroller or a digital signal processor (DSP) application specific integrated motor control chip, the motor 用集成控制芯片是电机智能功率芯片TPD4122K,各路的调压输出处理电路的输出端分别连接二极管D2、D4、D6、D8、 DlO后并联连接到同相跟随电路的输入端,交流电信号是220V的交流输入信号或者是IlOV 的交流输入信号。 Motor with integrated control chip is a smart chip power TPD4122K, the output of the brightest regulator output processing circuit are connected to the diode D2, connected to D4, D6, D8, DlO parallel to the noninverting input terminal of the follower circuit, an alternating current signal is 220V AC input signal or AC input signal IlOV. 同相跟随电路包括电阻R21、电容ell、运放IClA ;第一路单元处理电路的降压整流电路包括电阻R1、电阻R2、电阻R3,整流二极管Dl和滤波电容Cl ;第一路单元处理电路的光电隔离器是芯片ICl ;第一路单元处理电路的调压输出处理电路包括电阻R4和电容C2,第一路调压输出处理电路输出+5V的直流电压;第二路单元处理电路的调压输出处理电路包括电阻R8、电阻24和电容C4,+5V的直流电压经过电阻R8、电阻M的串联分压输出+4V的直流电压;第三路单元处理电路的调压输出处理电路包括电阻R12、电阻25和电容C6,+5V的直流电压经过电阻R12、电阻25的串联分压输出+3V的直流电压;第四路单元处理电路的调压输出处理电路包括电阻R16、电阻沈和电容C8,+5V的直流电压经过电阻R16、电阻沈的串联分压输出+2V的直流电压;第五路单元处理电路的调压输出处理电路包括电阻R20 Follow-phase circuit includes a resistor R21, capacitor ell, IclA operational amplifier; buck rectifier circuit a first path unit processing circuit includes a resistor R1, a resistor R2, a resistor R3, a rectifying diode Dl and filtering capacitor Cl; a first path unit processing circuit Optical isolators are of ICl chips; a first voltage regulator circuit output processing path comprises a processing circuit unit resistor R4 and capacitor C2, the DC voltage regulator output processing circuit a first output channel of + 5V; regulating the second path unit processing circuit output processing circuit includes a resistor R8, a resistor 24 and a capacitor C4, + 5V DC voltage through a resistor R8, the series resistance of M divided output DC voltage of + 4V; a regulating circuit of the third path output processing unit comprises a processing circuit resistor R12 , resistor 25 and a capacitor C6, a DC voltage of + 5V through the resistor R12, series resistor 25 divided output DC voltage of + 3V; the output voltage regulator circuit of the fourth channel processing unit processing circuit includes a resistor R16, a resistor and a capacitor C8 Shen , DC voltage of + 5V through a resistor R16, series resistor sink divided output DC voltage of + 2V; a regulating circuit of the fifth output processing path unit processing circuit includes a resistor R20 电阻27和电容C10,+5V的直流电压经过电阻R20、电阻27的串联分压输出+IV的直流电压。 Resistor 27 and capacitor C10, + 5V DC voltage through a resistor R20, series resistor 27 dividing the output DC voltage of + IV.

[0020] 交流电信号输入时档位线采用交流220V电压,通过降压整流电路打开光电隔离器,使调压输出处理电路输出一定的电压,五路调压输出处理电路的输出端相当于5个电压开关,输出直流电压分别分为1V、2V、3V、4V和5V,采用单向导通的二极管去控制同相跟随电路进行电流放大,实现微处理器的速度输入端口VSP获得1V、2V、3V、4V和5V的不同信号。 When the [0020] AC signal input gear 220V AC line voltage, through the optical isolator open buck rectifier circuit, the regulator output processing circuit outputs a constant voltage, the output terminal voltage regulator Rd corresponds to the output processing circuit 5 a voltage switch, the output DC voltage respectively divided 1V, 2V, 3V, 4V and 5V, a single diode to control the conduction of current amplification phase with follower circuit, the input port of the microprocessor speed VSP obtained 1V, 2V, 3V , different signals 4V and 5V. 另外当两路单元处理电路同时工作打开时,如两路调压输出处理电路分别输出IV和4V,则只能按高输出的原理,微处理器的速度输入端口VSP获得4V电压信号;微处理器MCU 的程序设置为IV士0. 3V,2V±0. 3V,3V±0. 3V,4V±0. 3V,5V±0. 3V,对应如下不同转速,转 In addition, when two processing units simultaneously open circuit, such as two-way regulator output processing circuit outputs 4V and IV, the only high-output according to the principle, the input port of the microprocessor speed VSP obtained 4V voltage signal; microprocessor the program is set to an MCU IV disabilities 0. 3V, 2V ± 0. 3V, 3V ± 0. 3V, 4V ± 0. 3V, 5V ± 0. 3V, correspond to the following different rotational speed,

速值可以通过软件设置,设置值可以在马达性能转速范围内的任何值,如表1所示。 Speed ​​value can be set by software, the set value can be any value in the performance of the motor speed range, as shown in Table 1.

[0021] [0021]

Figure CN202172378UD00051

[0022]表1 [0022] TABLE 1

Claims (7)

1.用交流电信号控制电机恒转速运转的直流无刷电机控制器,包括微处理器和速度输入电路,其特征在于:速度输入电路包括多路的单元处理电路和同相跟随电路组成,每路单元处理电路包括降压整流电路、光电隔离器和调压输出处理电路,交流电信号输入到降压整流电路的输入端,降压整流电路与调压输出处理电路之间通过光电隔离器藕合,各路的调压输出处理电路输出多种不同大小的直流电压,各路的调压输出处理电路的输出端并联后连接到同相跟随电路的输入端,同相跟随电路的输出端与微处理器的速度输入端口(VSP)电连接。 1. AC signal to control the motor with constant speed operation of the brushless DC motor controller, comprising a microprocessor and a speed input circuit, characterized in that: a speed input circuit includes a multiplexer unit processing circuit and a follower-phase circuit, each channel the processing unit includes an input circuit buck rectifier circuit, a voltage regulator and optical isolators output processing circuit, an alternating current signal to the buck rectifier circuit input terminal, between the rectifier circuit and the step-down voltage regulator output processing circuit coupling through the optoisolator brightest regulator output DC voltage of the processing circuit to output multiple different sizes, the output of the regulator after the brightest output processing circuit is connected in parallel with the output terminal of the follower to the input of the circuit, with the phase follower circuit and a microprocessor speed input port (VSP) is electrically connected.
2.根据权利要求1所述的用交流电信号控制电机恒转速运转的直流无刷电机控制器, 其特征在于:微处理器的根据速度输入端口(VSP)的电压大小选择一个转速(VO),并控制电机以转速(VO)恒速转动。 The AC electrical signal according to claim 1 brushless DC motor controller controlling the motor operation of the constant speed, wherein: the microprocessor according to the magnitude of the voltage input port speed (VSP) selecting a speed (VO) and to control the motor speed (VO) constant speed.
3.根据权利要求1或2所述的用交流电信号控制电机恒转速运转的直流无刷电机控制器,其特征在于:速度输入电路至少包括3路的单元处理电路。 The AC signal with claim 1 or claim 2 brushless DC motor controller controlling the motor operation of the constant speed, characterized in that: a speed input circuit comprising at least three channel processing circuit unit.
4.根据权利要求1或2所述的用交流电信号控制电机恒转速运转的直流无刷电机控制器,其特征在于:微处理器是单片机或者数字信号处理器DSP或者是电机专用集成控制芯片。 The AC signal with claim 1 or claim 2 brushless DC motor controller controlling the motor operation of the constant speed, characterized in that: the microprocessor or microcontroller or a digital signal processor DSP specific integrated motor control chip .
5.根据权利要求4所述的用交流电信号控制电机恒转速运转的直流无刷电机控制器, 其特征在于:电机专用集成控制芯片是电机智能功率芯片TPD412^(。 The AC electrical signal according to claim 4, wherein the brushless DC motor controller controlling the motor operation of the constant speed, wherein: the motor is a motor control chip Specific Integrated smart power chips TPD412 ^ (.
6.根据权利要求1或2所述的用交流电信号控制电机恒转速运转的直流无刷电机控制器,其特征在于:各路的调压输出处理电路的输出端连接二极管后并联连接到同相跟随电路的输入端。 The brushless DC motor controller of claim 12 or by an alternating current signal of constant speed operation to control the motor as claimed in claim, wherein: an output terminal connected to the output of the processing circuit brightest regulator diode is connected in parallel to the same phase after following the input of the circuit.
7.根据权利要求1或2所述的用交流电信号控制电机恒转速运转的直流无刷电机控制器,其特征在于:交流电信号是220V的交流输入信号或者是IlOV的交流输入信号。 The AC signal with claim 1 or claim 2 brushless DC motor controller controlling the motor operation of the constant speed, characterized in that: an AC signal is AC 220V input signal or AC input signal is a IlOV.
CN2011202814909U 2011-08-04 2011-08-04 DC brushless motor controller using AC electric signal to control motor at constant rotating speed running CN202172378U (en)

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PCT/CN2011/080959 WO2013016894A1 (en) 2011-08-04 2011-10-18 Direct current brushless electric motor controller using alternating current electrical signal to control electric motor to rotate with constant rotation speed

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103825504A (en) * 2012-11-16 2014-05-28 中山大洋电机股份有限公司 Draught-fan motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW328190B (en) * 1994-06-14 1998-03-11 Toshiba Co Ltd Control device of brushless motor and method of fault detection and air conditioner
JP3442024B2 (en) * 2000-02-29 2003-09-02 日立原町電子工業株式会社 Motor driving circuit, motor driving method, and semiconductor integrated circuit device
CN200941592Y (en) * 2006-08-28 2007-08-29 中山大洋电机股份有限公司 Controller of d.c. brush-less dynamo able to connect with user's high voltage control system
US7795827B2 (en) * 2008-03-03 2010-09-14 Young-Chun Jeung Control system for controlling motors for heating, ventilation and air conditioning or pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103825504A (en) * 2012-11-16 2014-05-28 中山大洋电机股份有限公司 Draught-fan motor
CN103825504B (en) * 2012-11-16 2018-02-06 中山大洋电机股份有限公司 A kind of blower motor

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