CN108233795A - Circuit for controlling motor applies the motor control assembly and method of the circuit - Google Patents

Circuit for controlling motor applies the motor control assembly and method of the circuit Download PDF

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Publication number
CN108233795A
CN108233795A CN201611162609.4A CN201611162609A CN108233795A CN 108233795 A CN108233795 A CN 108233795A CN 201611162609 A CN201611162609 A CN 201611162609A CN 108233795 A CN108233795 A CN 108233795A
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CN
China
Prior art keywords
signal
rotor
motor
alternating current
control circuit
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Application number
CN201611162609.4A
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Chinese (zh)
Inventor
鲁政
刘猛
娄明明
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无锡雷利电子控制技术有限公司
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Priority to CN201611162609.4A priority Critical patent/CN108233795A/en
Publication of CN108233795A publication Critical patent/CN108233795A/en

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Classifications

    • 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
    • H02P6/14Electronic commutators
    • H02P6/16Circuit arrangements for detecting position

Abstract

A kind of circuit for controlling motor, including:Alternating current zero crossing detection module for detecting the positive and negative and voltage zero-cross state of the alternating current of driving motor, and exports the alternating current zero cross signal (SYN) of instruction alternating current current state;Rotor-position detection module for detecting the current location of rotor, and exports the rotor-position signal (HALL) of instruction rotor-position;Logical signal processing module, for receiving alternating current zero cross signal and rotor-position signal, and based on two signal output motor drive signals (MOTOR);Machine winding switch module, for receiving motor drive signal, and the electric current for the Exciting Windings for Transverse Differential Protection for flowing through motor stator is controlled according to the motor drive signal of reception, so that the excitation field that the stator excitation winding generates always drives rotor to be rotated along a fixed-direction, wherein, logical signal processing module generates motor drive signal by logic gate chip or generates motor drive signal by using the signal logic relationship between one or more base electronic components.

Description

Circuit for controlling motor applies the motor control assembly and method of the circuit

Technical field

The present invention relates to a kind of circuit for controlling motor.Particularly, control circuit of the invention is suitable for the control of monophase machine System, more specifically it relates to the pure hardware controls of the motor in the monophase machine used in household electrical appliance, circulating pump, draining pump.

Background technology

In traditional monophase machine field, using single-phase permanent-magnet synchronous motor, wherein stator core is U-iron core, is collected Middle winding connects single phase poaer supply, and rotor is p-m rotor.When winding connects single phase poaer supply and connects, stator coil production Raw pulsed magnetic field so that rotor stress and rotates in pulsed magnetic field.

But in traditional single-phase permanent-magnet synchronous motor, there are this problems:It is generated when the Exciting Windings for Transverse Differential Protection of stator When the position of voltage and rotor mismatches, motor cannot rotate in the proper direction, so that easily shake or stuck, is caused Motor, which is not normally functioning, even to be damaged.

In order to avoid motor vibrating caused by being mismatched due to voltage and rotor-position or it is stuck the phenomenon that, it is proposed that some Solution.On the one hand, it can increase by a guiding mechanism in the structure of motor, motor to be guided to revolve in the proper direction Turn;But the effect of the program and unsatisfactory, because the guide frame causes motor easily stuck or even damage, and volume Outer mechanical structure leads to the assembling process complexity of motor, and consistency is poor.It on the other hand, can be in the control circuit of motor Increase by a software control module, the state of power supply and motor monitored by the software module, control the switch of power supply, so as to only when When the voltage and rotor-position that Exciting Windings for Transverse Differential Protection generates match, Exciting Windings for Transverse Differential Protection is made current flow through, so as to which rotor be driven to rotate;It but should Additional software control module needs add additional microcontroller in circuit for controlling motor, and due to software module resist it is dry It disturbs that ability is poor, thus it requires very high signal accuracy, therefore improves the overall cost of electric machine controller, and is additional soft Part module also brings additional microcontroller component, increases the difficulty of assembling.

It is of the invention only to assist in understanding as background information that above- mentioned information is presented.Whether may be used as any of the above described information It can be adapted to, as prior art with regard to the present invention, not make decision, do not make and asserting.

Invention content

The present invention provides one kind can effectively solve the problem that the above problem, and will not increase being manufactured into for electric machine controller simultaneously The pure hardware control circuit of this and assembling difficulty.

According to an aspect of the invention, there is provided a kind of circuit for controlling motor, which includes:Alternating current zero crossing is examined Module is surveyed, for detecting the positive and negative and voltage zero-cross state of the alternating current of driving motor, and exports instruction alternating current current state Alternating current zero cross signal SYN;Rotor-position detection module for detecting the current location of rotor, and exports instruction and turns The rotor-position signal HALL of sub- position;Logical signal processing module, for receiving alternating current zero cross signal SYN and rotor-position Signal HALL, and based on two signal output motor drive signal MOTOR;Machine winding switch module, for receiving electricity Machine drive signal MOTOR, and the electricity for the Exciting Windings for Transverse Differential Protection for flowing through motor stator is controlled according to the motor drive signal MOTOR of reception Stream so that the excitation field that the stator excitation winding generates always drives rotor to be rotated along a fixed-direction, wherein, logical signal Processing module generates motor drive signal MOTOR or by using one or more base electronics member by logic gate chip Signal logic relationship generation motor drive signal MOTOR between device.

In a preferred embodiment, alternating current zero crossing detection module, rotor-position detection module and machine winding switching molding Block does not include micro controller unit or unit under software control.

In a preferred embodiment, the motor drive signal MOTOR of logical signal processing module output is digital signal, Machine winding switch module controls the electric current for the Exciting Windings for Transverse Differential Protection for flowing through motor stator by motor drive signal MOTOR, from And control the excitation field of motor stator.

In a preferred embodiment, rotor-position detection module includes magnetic devices, the magnetic devices cloth It puts in the top of rotor, and output rotor position signal HALL, is used to indicate the magnetic pole of permanent magnet of rotor relative to excitation The left part of winding and/or the orientation of right part.

In a preferred embodiment, rotor-position signal HALL is digital signal, and magnetic devices are configured so that, When magnetic devices detect the S in the magnetic field of the permanent magnet of rotor extremely close to the magnetic devices, the rotor position of output Confidence HALL is high level, when magnetic devices detect the N in the magnetic field of the permanent magnet of rotor extremely close to the magnetic field detection During device, the rotor-position signal HALL of output is low level.

In a preferred embodiment, rotor-position signal HALL is digital signal, and magnetic devices are configured so that, When magnetic devices detect the S in the magnetic field of the permanent magnet of rotor extremely close to the magnetic devices, the rotor position of output Confidence HALL is low level, when magnetic devices detect the N in the magnetic field of the permanent magnet of rotor extremely close to the magnetic field detection During device, the rotor-position signal HALL of output is high level.

In a preferred embodiment, magnetic devices are Hall sensor.

In a preferred embodiment, alternating current zero cross signal SYN is digital signal, also, alternating current zero crossing detection module It is configured such that:When the electric current of the zero line output of AC power is the negative half period of alternating current, the alternating current zero crossing signal of output SYN is low level;When the electric current of the zero line output of AC power is the positive half cycle of alternating current, the alternating current zero crossing signal of output SYN is high level.

In a preferred embodiment, alternating current zero cross signal SYN is digital signal, also, alternating current zero crossing detection module It is configured such that:When the electric current of the zero line output of AC power is the negative half period of alternating current, the alternating current zero crossing signal of output SYN is high level;When the electric current of the zero line output of AC power is the positive half cycle of alternating current, the alternating current zero crossing signal of output SYN is low level.

In a preferred embodiment, believed by the motor drive signal MOTOR that logical signal processing module exports for number Number, also, machine winding switch module is configured such that:When motor drive signal MOTOR is high level, generation passes through electricity The electric current of the Exciting Windings for Transverse Differential Protection of machine stator;When motor drive signal MOTOR is low level, the excitation by motor stator is not generated The electric current of winding.

In a preferred embodiment, machine winding switch module includes bidirectional thyristor module TR1, and passes through this pair The electric current for the Exciting Windings for Transverse Differential Protection for flowing through motor stator is controlled to thyristor module TR1.

In a preferred embodiment, alternating current zero cross signal SYN and rotor-position signal HALL is digital signal, and And logical signal processing module is provided so that:As alternating current zero cross signal SYN and rotor-position signal HALL contrary signs, The motor drive signal MOTOR of output to generate the electric current of the Exciting Windings for Transverse Differential Protection by motor stator, when alternating current zero cross signal SYN and during rotor-position signal HALL jack per lines, the motor drive signal MOTOR of output not generate encouraging by motor stator The electric current of magnetic winding.

In a preferred embodiment, alternating current zero cross signal SYN and rotor-position signal HALL is digital signal, and And logical signal processing module is provided so that:As alternating current zero cross signal SYN and rotor-position signal HALL jack per lines, The motor drive signal MOTOR of output to generate the electric current of the Exciting Windings for Transverse Differential Protection by motor stator, when alternating current zero cross signal SYN and during rotor-position signal HALL contrary signs, the motor drive signal MOTOR of output not generate encouraging by motor stator The electric current of magnetic winding.

In a preferred embodiment, control circuit further includes AC DC modular converter, for that will come from AC power Alternating current be converted to direct current, and to other module for power supply of control circuit.

According to another aspect of the present invention, a kind of motor control assembly is provided, which includes:Alternating current Source;Control circuit according to the present invention;And motor, wherein, AC power supplies power to control circuit, and the control circuit control System flows through the electric current of the Exciting Windings for Transverse Differential Protection of motor stator.

According to another aspect of the present invention, a kind of motor control assembly is provided, including control electricity according to the present invention Road.

According to another aspect of the present invention, a kind of side that motor is controlled using control circuit according to the present invention is provided Method.

Description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will simply it be situated between to the attached drawing of embodiment below It continues, it should be apparent that, the accompanying drawings in the following description merely relates to some embodiments of the present invention rather than limitation of the present invention.

Fig. 1 shows the schematic block diagram of motor control assembly according to the present invention;

The circuit of an exemplary embodiment of AC-DC modular converter is shown in Fig. 2;

Fig. 3 shows the circuit diagram of an illustrative examples of alternating current zero crossing detection module;

Fig. 4 schematically shows the structure diagrams of rotor-position detection module;

Fig. 5 a-5d schematically show four typical centre positions in rotor rotation process, in this is four Between at position, magnetic field that Exciting Windings for Transverse Differential Protection generates is suitable for driving rotor and rotates clockwise;

Fig. 6 schematically shows the circuit diagram of an exemplary embodiment of logical signal processing module;

Fig. 7 shows the circuit diagram of an illustrative examples of machine winding switch module.

Specific embodiment

Refer to the attached drawing offer is described below, to help the comprehensive of the various embodiments of the present invention limited claim Understand.It includes various specific details to help the understanding, but these details should be considered as only being exemplary.Accordingly Ground, it will be appreciated by those of ordinary skill in the art that without departing substantially from the scope of the present invention limited by appended claims In the case of, changes and improvements can be made to various embodiments described herein.In addition, for clarity and brevity, it can The description to well known function and construction can be omitted.

It will be apparent for a person skilled in the art that providing the description below to various embodiments of the present invention, only it is For purposes of explanation rather than in order to limit the present invention limited by appended claims.

Penetrate through the description and claims of present specification, the modification of word " comprising " and "comprising" and word, example If " including " and " comprising " mean " including but not limited to ", and be not intended to (and will not) exclude other component, entirety or step Suddenly.

It will be understood as with reference to the specific aspect, embodiment or the described feature of example, entirety or characteristic of the present invention Arbitrary other aspect, embodiment or examples described herein are can be applied to, unless being compatible with.

It should be understood that singulative " one ", "one" and "the" include the reference of plural number, unless context is clearly Separately there are miscellaneous stipulations.In the present invention it is used statement "comprising" and/or " can include " be intended to mean that corresponding function, Operation or the presence of element, and it is not intended to limitation one or more functions, operation and/or the presence of element.In addition, in the present invention In, term "comprising" and/or " having " be intended to mean that characteristic, quantity, operation, element and component disclosed in application documents or The presence of combination thereof.Therefore, term "comprising" and/or " having " should be understood as, there are other one or more spies Property, quantity, operation, element and the additional possibility of component or combination thereof.

In the present invention, statement "or" includes the arbitrary or all combination of word enumerated together.For example, " A or B " can Comprising A or B or both A and B can be included.

Although each member of the present invention may be described using the statement of such as " the 1st ", " the 2nd ", " first " and " second " Part, they are not intended to limit corresponding element.For example, above-mentioned statement is not intended to limit the sequence or again of corresponding element The property wanted.Above-mentioned statement can be used for distinguishing a component and another component.For example, the first diode and the second diode All it is diode apparatus, and represents different diode apparatus.For example, in the case of without departing substantially from the scope of the present invention, first Element is properly termed as second element, and similarly, and second element is properly termed as first element.

When element is mentioned as " connection " or " coupling " to another element, this may mean that it is directly connected to or couples To other elements, but it is to be understood that, it is understood that there may be intermediary element.Alternatively, when element is mentioned as " being directly connected to " Or during " direct-coupling " another element, it should be appreciated that intermediary element is not present between two elements.

" on ", " under " that is mentioned in text, "left", "right" etc. are only used for representing relative position relation, when being described object After absolute position changes, then the relative position relation may also correspondingly change.

Terminology used in the present invention is merely to describe the purpose of specific embodiment, and be not intended to limit this hair It is bright.The statement of odd number includes the statement of plural number, unless there are the significant differences in linguistic context, scheme therebetween.

Unless otherwise defined, whole terms (including technical term and scientific terminology) used herein have and this Shen The normally understood identical meanings of those of ordinary skill institute of technical field that please be affiliated.It will also be appreciated that term (such as it is common Those terms limited in dictionary), it should be interpreted that with the meaning consistent with the context of related field and this specification, and It and should not be to idealize or the meaning that excessively formalizes is explained, unless clearly limit so herein.

The Fig. 1 being discussed below is used to describe the various embodiments of the principle of the present invention to Fig. 7 and in this patent document It is intended merely to illustrate, without should be to be considered as limiting the scope of the invention in any way.It will be appreciated by those skilled in the art that , the principle of the present invention can be embodied in any electric motor and controller circuit suitably arranged.For describing various realities The term for applying example is exemplary.It should be understood that provide these only to assist in understanding this specification, and they make It is not limited the scope of the invention in any way with definition.It is distinguished using first, second grade of term with same term collection Object, and be not intended to represent chronological order in any way, unless expressly stated otherwise,.Group is defined as comprising at least one The non-empty group of element.

Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair Bright part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill Personnel's all other embodiments obtained under the premise of without creative work, shall fall within the protection scope of the present invention.It should When understanding, exemplary embodiments described herein should be to be considered only as mesh descriptive rather than for limitation 's.The description of features or aspect in each exemplary embodiment should be typically considered to can be used for other exemplary embodiments In similar features or aspect.

Fig. 1 shows the schematic block diagram of motor control assembly 1 according to the present invention.In motor control assembly 1, exchange Power supply 100 is connected to by a pair of of ac input end in the control circuit of motor, and a pair of of ac output end will be through control Exchange output output is rotated to motor 700 with the rotor of driving motor 700.Motor control assembly 1 kernel control module (that is, Control circuit 10) include, alternating current zero crossing detection module 200, AC-DC modular converter 300, rotor-position detection module 400, Logical signal processing module 500 and machine winding switch module 600.In one embodiment of control circuit according to the present invention In, using the firewire L of alternating current as the reference point (i.e. GND) of entire control circuit 10;But in other alternative embodiments, Other electrical voltage points can be also elected to be to the reference voltage of control circuit 10 according to practical service condition.

Specifically, in control circuit 10 as shown in Figure 1, alternating current zero crossing detection module 200 is used to detect alternating current Real time status information;AC-DC modular converter 300 is used to the alternating current for coming from AC power 100 being converted to direct current, So as to which circuit 10 is powered in order to control;Rotor-position detection module 400 is used to judge the position of rotor;Logical signal processing module 500 for judging currently whether meet to the requirement of the Exciting Windings for Transverse Differential Protection energization of motor stator, and particularly, which handles mould Block 500 is made up of pure hardware circuit, that is to say, that can only by the signal logic relational implementation between electronic component, It is controlled without additional micro controller unit or software;And machine winding switch module 600 is used to that motor to be controlled to determine The break-make of sub- exciting current.The composition of modules about control circuit 10 will be described in detail herein below.

The schematic block diagram of control circuit 10 shown in FIG. 1 describes the basic principle of the control circuit 10.Specifically, should The basic principle of control circuit 10 is carried out by following steps:

AC power 100 is powered for entire control circuit 10 and motor 700;

The alternating current for coming from AC power 100 is converted to metastable direct current by AC-DC conversion module 300 Electric system, (in one embodiment the DC system be negative DC voltage system), and by the direct current of generation supply to Alternating current zero crossing detection module 200, rotor-position detection module 400, logical signal processing module 500 and machine winding switch Module 600;

Alternating current zero crossing detection module 200 detects the state of current alternating current in real time, including alternating current be in positive half cycle or Negative half period (that is, alternating voltage zero-crossing state), and the logical signal for indicating current alternate current states is exported to logical signal Processing module 500;

Rotor-position detection module 400 detects the position of rotor and the logic that will indicate current rotor position in real time Signal is exported to logical signal processing module 500;

Logical signal processing module 500 receives the logic of instruction alternating current real-time status from alternating current zero crossing detection module 200 Signal and the logical signal that instruction rotor-position is received from rotor-position detection module 400, and according to two received The relationship of logical signal is to determine whether meet phase to the condition of the Exciting Windings for Transverse Differential Protection energization of motor stator and according to the judgement The control signal answered is exported to machine winding switch module 600;

Machine winding switch module 600 is based on the control signal received from logical signal processing module 500 come Operation switch The break-make of module to control to the break-make of motor stator energization winding power, turns to stop so as to further control rotor.

It should be understood that the description of the step of above-mentioned basic principle to control circuit 10 is not intended to, limitation is above to retouch The sequence for the step of stating;On the contrary, process described above can be performed or be performed simultaneously with random order.It is and above-mentioned right The basic principle of control circuit 10 also not necessarily includes above-mentioned Overall Steps or above-mentioned entire infrastructure, for example, AC-DC converts Module 300 can be set independently of the control circuit 10.

According to a preferred embodiment of the present invention, logical signal processing module 500 is set up by pure hardware device, And based on instruction alternating current real-time status logical signal and instruction rotor-position logical signal to determine whether meet to The condition that the Exciting Windings for Transverse Differential Protection of motor stator is powered.

Specifically, logical signal processing module 500 handles following three kinds of operating modes, and the identification based on operating mode And export the control signal for controlling switch module break-make to machine winding switch module 600, motor stator is encouraged so as to control The break-make of magnetic winding power and rotor turn to stop:

It is corresponding to control signal defeated according to the expectation direction of rotation of rotor when rotor remains static Go out to machine winding switch module 600, to control the break-make of the switch module, so as to control through motor stator energization winding The break-make of electric current so that rotor is rotated with desired direction;

When rotor rotates, if the voltage direction of the Exciting Windings for Transverse Differential Protection of the position and motor stator of rotor matches, Signal designation machine winding switch module 600 is then controlled to be closed (i.e. the module is connected), exciting current flows through encouraging for motor stator Magnetic winding generates the excitation field that driving motor is rotated along desired orientation;

When rotor rotates, if the voltage direction of the Exciting Windings for Transverse Differential Protection of the position and motor stator of rotor not phase Match, then signal designation machine winding switch module 600 is controlled to disconnect (i.e. the module is not turned on), no electric current flows through motor stator Exciting Windings for Transverse Differential Protection, i.e., will not generate and hinder the excitation field that is rotated along desired orientation of the motor.

In control circuit 10 according to the present invention, all modules, including alternating current zero crossing detection module 200, AC-DC Modular converter 300, rotor-position detection module 400, logical signal processing module 500 and machine winding switch module 600 are all Pass through hardware realization.Therefore, control circuit 10 according to the present invention is pure hardware plan, without additional MCU or software mould Block.Particularly, in control circuit 10 according to the present invention, logical signal processing module 500 is by pure hardware realization, i.e., to turning Son operating mode identification and to rotor-position and Exciting Windings for Transverse Differential Protection voltage direction it is whether matched be identified by hardware reality It is existing, without additional microcontroller and software module on/off is controlled by monitoring power supply and motor status.

The control circuit 10 of pure hardware according to the present invention eliminates software module and the use of MCU, reduces control The complexity and its cost of circuit 10, realize similar technique effect in a simpler manner.Simultaneously as according to the present invention Control circuit 10 by pure hardware realization, for the control circuit with software module, to signal antijamming capability Requirement reduce, so as to higher reliability.Further, since without additional MCU, assembling process is more easy, so as to Create a further reduction production cost.

Hereinafter the modules of control circuit 10 according to the present invention are respectively described.It should be understood that Hereinafter only it is the exemplary embodiment of those modules to the description of modules, and is only for helping those skilled in the art Member is better understood from and realizes the present invention rather than corresponding module is limited to described embodiment.The common skill of this field Art personnel will recognize, can be right in the case of without departing substantially from the scope of the present invention limited by appended claims Various embodiments described herein makes changes and improvements.Based on described the embodiment of the present invention, the common skill in this field Art personnel all other embodiments obtained under the premise of without creative work, shall fall within the protection scope of the present invention.

AC-DC modular converter 300 is used to the alternating current for coming from AC power 100 being converted to direct current, so as to Circuit 10 is powered in order to control.Specifically, AC-DC conversion module 300 is converted to the alternating current for coming from AC power 100 Metastable DC system, and the direct current of generation is supplied to alternating current zero crossing detection module 200, rotor-position detection Module 400, logical signal processing module 500 and machine winding switch module 600, to drive the normal operation of these modules.

In one embodiment, the DC system obtained through AC-DC conversion module 300 is negative DC voltage system System.In other words, in the case of using the firewire L of alternating current as the reference point of entire control circuit 10, the DC voltage system The voltage at system both ends is reference voltage (GND) and negative voltage (in one embodiment, which is -5V).

The circuit of an exemplary embodiment of AC-DC modular converter 300 is shown in Fig. 2.It is shown in figure 2 In AC-DC modular converter 300, including rectifier diode D2, current-limiting resistor voltage divider, zener diode ZD1, storage capacitor C1 and decoupling capacitor C2.

Current-limiting resistor voltage divider can be formed by single power resistor;Or can by multiple power resistors by series connection and/or It is connected in parallel and is formed, wherein the one or more power resistor can be formed as one or more plug-in units or Chip-R Form or any form of power resistor for being that by current-limiting resistor voltage divider.In embodiment shown in figure 2, partial pressure limit Leakage resistance is formed by 24 power resistors by connecting and/or being connected in parallel.But in alternate embodiments, The number for forming the power resistor of current-limiting resistor voltage divider can be more or less.

Similarly, other electronic devices can also be formed by the combination of one or more devices, and be not limited to single Device, as long as function expected from realizing.

In AC-DC modular converter 300 shown in figure 2, the firewire L of AC power 100 is as control circuit 10 Reference point, that is, be connected to GND.The zero curve N of AC power 100 is connected to the K poles (cathode) of rectifier diode D2, the rectification two The other end A poles (anode) of pole pipe D2 are connected to one end of current-limiting resistor voltage divider, and the other end of the current-limiting resistor voltage divider then connects It is connected to the A poles of zener diode ZD1.The K poles of zener diode ZD1 are connected to system reference point (GND), that is, are connected to alternating current On the firewire L in source 100.Storage capacitor C1 and decoupling capacitor C2 is connected in parallel to the both ends of zener diode ZD1 respectively.

AC-DC modular converter 300 shown in figure 2 can by it is being inputted via firewire L and zero curve N, be selfed The alternating voltage that galvanic electricity source 100 receives is converted to DC voltage, and exports the straight of stabilization via the both ends of zener diode ZD1 Galvanic electricity pressure.In embodiment shown in figure 2, the steady dc voltage for being formed in zener diode ZD1 both ends is terminal voltage The negative DC voltage system of respectively 0V and -5V.

In alternate embodiments, can mould be detected according to alternating current zero crossing detection module 200, the rotor-position that will be powered Block 400, logical signal processing module 500 and machine winding switch module 600 and flexibly select the direct current being finally converted to Other numerical value of pressure.

The parameter of each device in the AC-DC modular converter 300 can be adjusted neatly, desired to obtain DC voltage value.The negative DC voltage system obtained in this embodiment is due to the reference point using firewire L as control circuit GND;Alternatively, also can be using zero curve N as the reference point of control circuit, the direct voltage system obtained from is direct-flow positive voltage System.

AC-DC modular converter 300 can convert the alternating current that will be used as the direct power supply of motor by combined-voltage Be converted to the DC voltage of the power supply as circuit for controlling motor.Optionally, which can be independent In circuit for controlling motor part.

Alternating current zero crossing detection module 200 detects the state of current alternating current in real time, and will indicate current alternating current shape The logical signal of state is exported to logical signal processing module 500.

Fig. 3 shows the circuit diagram of an illustrative examples of alternating current zero crossing detection module 200.In the friendship shown in Fig. 3 It flows through in zero detection module 200, including current-limiting resistor voltage divider R3, R4, divider resistance R5, diode D1, triode Q1, filtered electrical Hold C6 and pull-up resistor R15.

Current-limiting resistor voltage divider in alternating current zero crossing detection module 200 also can by one or more resistance components in series and/or Parallel connection is formed.In the embodiment illustrated in figure 3, which is composed in series by two resistance R3 and R4.It is substituting Embodiment in, the current-limiting resistor voltage divider can be made of single resistance or by more resistance pass through series connection and/or it is in parallel even It connects.Similarly, other electronic devices can also be formed by the combination of one or more devices, and be not limited to single device Part, as long as function expected from realizing.

In the alternating current zero crossing detection module 200 being shown in FIG. 3, current-limiting resistor voltage divider connected by two resistance R3 and R4 and Into.One end of the classification current-limiting resistance is connected on the zero curve N of alternating voltage 100, and the other end is through divider resistance R5 connection best friends The negative voltage pole (in the fig. 3 embodiment, being connected to -5V) for the negative DC voltage system that stream-DC conversion modules 300 export. Diode D1 and filter capacitor C6 is connected in parallel on the both ends of divider resistance R5.The B poles (base stage) of triode Q1 are connected to the K of diode Pole, the C poles (collector) of triode Q1 are connected to system reference point GND, and the E poles (hair of triode Q1 through pull-up resistor R15 Emitter-base bandgap grading) it is connected to the negative voltage pole of negative DC voltage system.

In alternating current zero crossing detection module 200 according to fig. 3, the C poles output instruction alternate current states of triode Q1 (are handed over Galvanic electricity is in positive half period or negative half-cycle or alternating voltage zero-crossing state) alternating current zero cross signal SYN, and further Ground exports signal SYN to logical signal processing module 500.

In the embodiment of alternating current zero crossing detection module 200 being shown in FIG. 3, what alternating current zero crossing detection module 200 exported Alternating current zero crossing signal SYN is to indicate that alternating current is positive and negative and cross the logical signal of nought state.Specifically, when the zero of AC power 100 The electric current of line N outputs is the negative half period of alternating current, then 200 output digit signals of alternating current zero crossing detection module " 0 ", i.e. alternating current zero crossing Signal SYN is digital signal " 0 ";When the positive half cycle that the electric current that the zero curve N of AC power 100 is exported is alternating current, then exchanged Zero detection module, 200 output digit signals " 1 ", i.e. alternating current zero crossing signal SYN are digital signal " 1 ".

It is understood that in alternate embodiments, alternating current zero crossing detection module 200 be also designed to so that, work as friendship The electric current of the zero curve N outputs in galvanic electricity source 100 is the negative half period of alternating current, then 200 output digit signals of alternating current zero crossing detection module “1”;When AC power 100 zero curve N export electric current be alternating current positive half cycle, then alternating current zero crossing detection module 200 export Digital signal " 0 ".

Rotor-position detection module 400 detects the position of rotor and the logic that will indicate current rotor position in real time Signal is exported to logical signal processing module 500.Specifically, which can be by rotor permanent magnet Peripheral appropriate position arrangement rotor field detection device 401 detect the orientation of the south poles in rotor permanent magnet magnetic field, from And judge the position of rotor.

Fig. 4 schematically shows the structure diagrams of rotor-position detection module 400.In the rotor-position shown in Fig. 4 In detection module 400, magnetic devices 401 are arranged near the permanent magnet 402 of rotor, with according to the rotor that detects forever The polarity of the magnetic field of magnet, to export corresponding rotor-position signal.The permanent magnet 402 of rotor be arranged in the excitation of stator core around Between two opposite magnetic poles of group 403, and the magnetic field that generates of Exciting Windings for Transverse Differential Protection 403 through stator core and be driven to rotate.

Magnetic devices 401 are powered by the direct voltage system that AC-DC modular converter 300 exports, and And the rotor-position signal detected is output to logical signal processing module 500.

According to a preferred embodiment of the present invention, magnetic devices 401 are Hall sensors, the hall sensing Device 401 exports corresponding rotor-position signal HALL according to the polarity of the magnetic field of the rotor permanent magnet detected.Rotor-position signal HALL is digital signal, i.e. high level " 1 " or low level " 0 ".According in the rotor-position detection module 400 shown in Fig. 4, Magnetic devices 401 are arranged in the top of rotor 402, for detecting the orientation of the south poles of rotor 402.Specifically, when turn When the S in the magnetic field of the permanent magnet 402 of son is extremely close to Hall sensor 401,401 output rotor position signal HALL of Hall sensor For high level " 1 ";When the N in the magnetic field of the permanent magnet 402 of rotor is extremely close to Hall sensor 401, Hall sensor 401 exports Rotor-position signal HALL low levels " 0 ".

It is to be understood that another Hall sensor can also be used, the relationship of output signal and rotor magnetic pole orientation It also can be opposite with the Hall sensor 401 in Fig. 4.In alternate embodiments, it is possible to use other kinds of sensor, as long as It can export corresponding digital signal according to the position of rotor.

Logical signal processing module 500 receives instruction alternating current real-time status from alternating current zero crossing detection module 200 and (exchanges Electric positive and negative and voltage zero-cross state) alternating current zero crossing signal and receive instruction rotor position from rotor-position detection module 400 The rotor-position signal put, and according to the relationship of two logical signals received to determine whether meeting to motor stator The condition and signal will be controlled to export to machine winding switch module 600 accordingly according to the judgement that Exciting Windings for Transverse Differential Protection is powered.

In the application of motor according to the present invention, user wishes that motor is always rotated along a direction, and does not expect Motor inadequately shake, stuck or reversion in rotation process.Specifically, the Exciting Windings for Transverse Differential Protection of stator core is initially led to Electricity, so that rotor becomes rotating along a direction from stationary state, and in motor rotation process later, rotor can It is constantly driven to rotate in the direction, the resistance rotated in the direction without rotor hindered.But due to excitation Winding is connected to AC power, and rotor is always in rotation status in the course of work of motor, therefore, flow through excitation around The magnetic field that the electric current of coil in group generates is not always able to the rotor of driving motor and is rotated and complete along current direction of rotation The rotation of rotor is not hindered.When the magnetic field that Exciting Windings for Transverse Differential Protection generates inadequately hinders rotation of the rotor along current direction of rotation, Even it can then lead to shaking, is stuck, damaging for motor.

Accordingly, it is desirable to when the magnetic direction that Exciting Windings for Transverse Differential Protection generates is adapted for driving motor rotor along current rotation side To during rotation, electric current is kept to flow through the coil of Exciting Windings for Transverse Differential Protection, so as to maintain the induced field, it is made to drive rotor rotation;But work as The magnetic direction that Exciting Windings for Transverse Differential Protection generates is that rotor is hindered to cut off along when the rotation of front direction and flow through excitation winding pole coil Electric current, so as to disconnect the induced field, it is avoided to hinder rotor rotation.In this case, when the magnetic that Exciting Windings for Transverse Differential Protection generates Field direction be adapted for driving motor rotor along current direction of rotation rotate when, electric current flows through the coil of Exciting Windings for Transverse Differential Protection, Exciting Windings for Transverse Differential Protection The field drives rotor of generation is rotated along current direction of rotation;When the magnetic direction that Exciting Windings for Transverse Differential Protection generates is that motor is hindered to turn Son along current direction of rotation rotate when, cut-out flow through Exciting Windings for Transverse Differential Protection coil electric current, so as to cut off Exciting Windings for Transverse Differential Protection generation sense Magnetic field is answered, rotor continues according to its inertia along when front direction rotation is unobstructed.

Attached drawing below with reference to of the invention simultaneously combines the exemplary embodiment of above-described modules, with rotor edge In case of rotating clockwise, it is set forth in the magnetic direction of Exciting Windings for Transverse Differential Protection and the matching relationship of rotor-position.Under Specification is described in text and the principle of embodiment shown in the drawings, and the situation that rotor rotates counterclockwise also can be similarly real It is existing, it repeats no more in the text.

It is shown in Fig. 4 go out rotor-position detection module 400 embodiment in, the winding side of the coil of Exciting Windings for Transverse Differential Protection 403 To and the connection mode of corresponding power circuit be configured as:When on zero curve N being the negative half period of alternating current, that is, work as exchange When the alternating current zero cross signal SYN that zero passage detection module 200 exports is digital signal " 0 ", in the coil in Exciting Windings for Transverse Differential Protection 403 Electric current is flowed into from left, is flowed out, and the magnetic field pole that the left part of Exciting Windings for Transverse Differential Protection 403 is generated by electromagnetic induction phenomenon from right Property be S poles, Exciting Windings for Transverse Differential Protection 403 right part because the polarity of the magnetic field that electromagnetic induction phenomenon generates is N poles;When on zero curve N for hand over During the positive half cycle of galvanic electricity, i.e., when the alternating current zero cross signal SYN that alternating current zero crossing detection module 200 exports is digital signal " 1 ", The electric current in coil in Exciting Windings for Transverse Differential Protection 403 is flowed into from right, is flowed out from left, and the left part of Exciting Windings for Transverse Differential Protection 403 because The magnetic field that the polarity of the magnetic field that electromagnetic induction phenomenon generates is N poles, the right part of Exciting Windings for Transverse Differential Protection 403 is generated by electromagnetic induction phenomenon Polarity is S poles.

Fig. 4 shows initial position when rotor 402 in one embodiment is in static.What is be shown in FIG. 4 is attached In figure, in the initial rest position of rotor 402, the S poles of the permanent magnet of rotor 402 alignment Hall sensor, i.e. Hall at this time The rotor-position signal HALL of sensor output is high level " 1 ".In order to rotate clockwise rotor 402, it is desirable that stator iron Since the magnetic field that electromagnetic induction generates also is that (magnetic pole i.e. as shown in Figure 4 takes for S poles in the left part of the Exciting Windings for Transverse Differential Protection 403 of core To).According to the connection mode of the winding direction of the coil of aforementioned Exciting Windings for Transverse Differential Protection 403 and corresponding power circuit, at this time The electric current in the coil in Exciting Windings for Transverse Differential Protection 403 is asked to be flowed into from left, flows out (direction of current flow as shown in Figure 4) from right, Correspondingly, the alternating current on zero curve N is negative half period, i.e., the alternating current zero cross signal SYN that alternating current zero crossing detection module 200 exports is Digital signal " 0 ".

In other words, (Hall sensor exports at this time in the case of the initial rest position of rotor as shown in Figure 4 Rotor-position signal HALL is high level " 1 "), only when the alternating current zero cross signal SYN that alternating current zero crossing detection module 200 exports is During low level " 0 ", the magnetic field generated by the Exciting Windings for Transverse Differential Protection 403 of stator core can drive rotor 402 along anticipated orientation (i.e. up time Needle) rotation;And when the alternating current zero cross signal SYN that alternating current zero crossing detection module 200 exports is high level " 1 ", by stator iron The magnetic field that the Exciting Windings for Transverse Differential Protection 403 of core generates can undesirably drive rotor 402 along direction (the i.e. inverse time opposite with anticipated orientation Needle) rotation.

Further, in the rotary course of rotor 402, only when by Hall sensor 401 sense in rotor 402 When polarity of the magnetic field at top is identical with the polarity of the magnetic field that the left part of Exciting Windings for Transverse Differential Protection 403 generates, generated by Exciting Windings for Transverse Differential Protection 403 Magnetic field rotor 402 can be driven to be rotated in a clockwise direction;And when by Hall sensor 401 sense in rotor 402 When polarity of the magnetic field at top is opposite with the polarity of the magnetic field that the left part of Exciting Windings for Transverse Differential Protection 403 generates, generated by Exciting Windings for Transverse Differential Protection 403 Magnetic field hinder driving rotor 402 be rotated in a clockwise direction.

In other words, in the rotary course of rotor 402, when rotor-position signal HALL is high level " 1 " and alternating current Zero cross signal SYN is low level " the 0 " (polarity of the magnetic field and the left side of Exciting Windings for Transverse Differential Protection 403 that Hall sensor 401 senses at this time It is S poles to divide the polarity of the magnetic field induced) or when rotor-position signal HALL is low level " 0 " and alternating current zero cross signal For high level " 1 ", (polarity of the magnetic field and the left part of Exciting Windings for Transverse Differential Protection 403 that Hall sensor 401 senses at this time induce SYN Polarity of the magnetic field be N poles) when, Exciting Windings for Transverse Differential Protection 403 generate magnetic field rotor 402 is further driven to revolve along clockwise direction Turn;And when rotor-position signal HALL and alternating current zero cross signal SYN are high level or are low level " 0 ", excitation around The magnetic field that group 403 generates hinders rotor 402 to be rotated in a clockwise direction.

Therefore, it in order to realize the rotation of rotor along clockwise direction, in an embodiment according to the present invention, provides one and patrols Collect signal processing module 500.The module 500 is used to implement such function, when rotor-position signal HALL and alternating current zero crossing believe During number SYN contrary signs, the coil of Exciting Windings for Transverse Differential Protection 403 is powered, and generates the excitation field that driving motor rotates clockwise, works as rotor-position Signal HALL and during alternating current zero crossing signal SYN jack per lines, the coil blackout of Exciting Windings for Transverse Differential Protection 403 does not generate and motor is hindered to revolve clockwise The excitation field turned.So as in the rotary course of rotor, by means of the logical signal processing module 500, Exciting Windings for Transverse Differential Protection 403 The magnetic field of generation is always suitable for driving rotor and rotates clockwise, and the card of rotor caused by avoiding unsuitable magnetic direction Extremely, the situation of shake.

Fig. 5 a-5d schematically show four typical centre positions in 402 rotary course of rotor, at this four Middle position, the magnetic field that Exciting Windings for Transverse Differential Protection 403 generates are adapted to rotor is driven to rotate clockwise.

It is understood that if the initial position of rotor 402 is arranged so that the N poles alignment Hall of the permanent magnet of rotor passes Sensor, i.e. the rotor-position signal HALL of Hall sensor output at this time is low level " N ", and rotor can above be retouched with being similar to The start mode for the rotor stated and rotated clockwise by being suitably activated in.Particularly, the initial position of rotor 402 may be selected from Any one in four centre positions shown by Fig. 5 a-5d.More particularly, the initial position of rotor 402 can be rotor Any position in rotary course.In a preferred embodiment, the initial position of rotor 402 can be fixed so that rotor 402 are always started in an identical manner;Alternatively;The initial position of rotor 402 may not be fixed so that logic is believed Number signal processing module 500 can export corresponding control according to the different initial positions of rotor 402 to Exciting Windings for Transverse Differential Protection 403 Signal, to control the break-make of Exciting Windings for Transverse Differential Protection 403, so as to suitably drive starting of the rotor 402 from resting position.

Fig. 6 schematically shows the circuit diagram of an exemplary embodiment of logical signal processing module 500.Specifically Ground, logical signal processing module 500 shown in Fig. 6 is configured as, when the alternating current zero crossing from alternating current zero crossing detection module 200 Signal SYN and during rotor-position signal HALL contrary signs from rotor-position detection module 400, the motor drive signal of output MOTOR is high level " 1 ", and the Exciting Windings for Transverse Differential Protection 403 of motor stator is energized to generate induced field, driving motor rotor at this time 402 rotations;As alternating current zero crossing signal SYN and rotor-position signal HALL jack per lines, the motor drive signal MOTOR of output is low Level " 0 ", the Exciting Windings for Transverse Differential Protection 403 of motor stator are not energized, do not generate induced field, and driving motor rotor 402 does not rotate.

In the logical signal processing module 500 of Fig. 6, including four diode D3, D4, D5, D6, a triode Q2, With four resistance R10, R42, R43, R16.

In the embodiment show in figure 6, the alternating current zero crossing signal SYN from alternating current zero crossing detection module 200 and carry out rotation The rotor-position signal HALL of sub- position detecting module 400 is input into logical signal processing module 500, and connect respectively To the anode of diode D3, D4.The cathode of diode D3, D4 link together, and output motor drive signal MOTOR, use In the break-make of the electric current of the coil for the Exciting Windings for Transverse Differential Protection that control passes through motor stator.In order to which motor drive signal MOTOR is made to have reliably Low level, which is connected to negative DC voltage (- 5V) through pull down resistor R16.Motor drive signal MOTOR is additionally coupled to The collector of triode Q2, the emitter of triode Q2 are connected further to negative DC voltage (- 5V), and the base stage of triode Q2 It is connected to current-limiting resistance R42.The other end of current-limiting resistance R42 is connected to system reference point GND through another pull-up resistor R43, and And the anode of two diodes D5, D6 are connected to, the cathode of wherein diode D5 is connected to rotor-position signal HALL, and two poles The cathode of pipe D6 is connected to alternating current zero crossing signal SYN.

Circuit in Fig. 6 is embodied as XOR circuit so that, when signal HALL and SYN contrary sign, the motor driving letter of output Number MOTOR is digital high " 1 ", and when signal HALL and SYN jack per line, the motor drive signal MOTOR of output is number Low level " 0 ".So as to which the logical signal processing module 500 can cause the magnetic field that Exciting Windings for Transverse Differential Protection 403 generates always to drive rotor 402 rotate along predetermined direction (being clockwise in this embodiment).

Logical signal processing module 500 shown in Fig. 6 only passes through simple four diodes, four resistance and three poles Pipe realizes the processing to the logical signal HALL and SYN of input, while also output controls motor-driven logical signal MOTOR.Instead of traditional MCU and peripheral circuit in the functions of modules, and simple pure hardware circuit scheme is used, without Software module participates in, so as to significantly reduce the cost of electric machine controller.Further, due to logical signal according to the present invention Processing module 500, instead of software module, therefore is reduced and signal antijamming capability is required by pure hardware;And due to The demand to additional MCU is eliminated, therefore reduces the complexity of assembling.

In the logical signal processing module 500 being shown in FIG. 6, the processing of logical signal HALL and SYN are passed through by all The hardware circuit formed such as one or more base electronic devices of transistor (including diode, triode) and resistance is realized. It alternatively, can be by that can realize any form of hardware circuit of exclusive or function to logical signal HALL and SYN and processing To realize.In an optional embodiment, can exclusive or function be realized by an XOR gate.In another optional implementation In example, other can be built by transistor has the function of the circuit of exclusive or.

In an alternative embodiment, the type (such as not being Hall element) and/or arrangement of magnetic devices 401 Position it is different from the rotor-position detection module shown in Fig. 4 so that magnetic devices 401 export rotor-position signal The level of HALL is opposite with the embodiment of rotor-position detection module 400 shown in Fig. 4 with the correspondence of rotor-position. In such alternate embodiment, logical signal processing module 500 can realize same or function circuit or core by one Piece is realized.Specifically, logic processing module 500 is embodied as:When signal HALL and SYN jack per line, logical signal processing module The motor drive signal MOTOR of 500 outputs is digital high " 1 ", and when signal HALL and SYN contrary sign, at logical signal It is digital low " 0 " to manage the motor drive signal MOTOR that module 500 exports.So as to which the logical signal processing module 500 can So that the magnetic field that Exciting Windings for Transverse Differential Protection 403 generates always drives rotor 402 to be revolved along predetermined direction (being clockwise in this embodiment) Turn.

In another alternative embodiment, the alternating current zero crossing signal SYN that alternating current zero crossing detection module 200 exports is with exchanging The relationship of the positive-negative half-cycle of electricity is opposite with the embodiment shown in Fig. 3;That is, when the zero curve N of AC power 100 electric currents exported are The negative half period of alternating current, then the alternating current zero crossing signal SYN that alternating current zero crossing detection module 200 exports is digital signal " 1 ", works as exchange The electric current of the zero curve N outputs of power supply 100 is the alternating current zero crossing of the positive half cycle, the then output of alternating current zero crossing detection module 200 of alternating current Signal SYN is digital signal " 0 ".In such alternate embodiment, logical signal processing module 500 can also can by one It is realized with realizing the circuit of same or function or chip.Specifically, logical signal processing module 500 is embodied as:As signal HALL During with SYN jack per lines, the motor drive signal MOTOR of output is digital high " 1 ", and when signal HALL and SYN contrary sign, it is defeated The motor drive signal MOTOR gone out is digital low " 0 ".So as to, the logical signal processing module 500 can cause excitation around The magnetic field that group 403 generates always drives rotor 402 to be rotated along predetermined direction (being clockwise in this embodiment).

The same or circuit referred in aforementioned alternate embodiment may be used can realize with or function it is any form of Hardware circuit is realized.In an optional embodiment, same or circuit can be by multiple basic electronic devices (including crystal Pipe, resistance) hardware circuit of composition realizes.In another optional embodiment, it can be realized by a same or door Same or function.

In other examples, according to the type of magnetic devices 401 (such as not being Hall element) and/or arrangement Position, the output level of magnetic devices 401 and the correspondence of rotor-position may be detected with the rotor-position in Fig. 4 Module 400 is opposite;Alternatively, show in the relationship in the direction of direction of current flow and the induced field generated and attached drawing in Exciting Windings for Transverse Differential Protection The embodiment gone out is opposite;Or alternating current zero crossing detection module, rotor-position detection module and/or logical signal processing module One or more of the relationship of detection state/between input signal and output signal level and the embodiment of described in the text in Situation it is opposite.Under the single or multiple combinations of these situations, logical signal processing module can correspondingly be designed as different Or circuit or with or circuit, as long as its output motor drive signal MOTOR cause excitation winding pole coil generate magnetic field it is total It is adapted for rotor is driven to rotate along a certain expected direction, can achieves the object of the present invention, and realization prevents motor vibrating, card It is dead even to damage.And these technical solutions are also belonged within protection scope of the present invention.

Machine winding switch module 600 based on the motor drive signal MOTOR received from logical signal processing module 500 come The break-make of Operation switch element, to control the break-make to motor stator energization winding power, so as to which further control motor turns Son turns to stop.According to one embodiment of present invention, the device as switch element is bidirectional thyristor:When MOTOR is During high level " 1 ", bidirectional thyristor is connected, and the excitation winding pole coil of motor stator is powered, and generates induced field, drives rotor Rotation;When MOTOR is low level " 0 ", bidirectional thyristor port, the excitation winding pole coil of motor stator is not powered, and is not produced Raw induced field.

Fig. 7 shows the circuit diagram of an illustrative examples of machine winding switch module 600.Fig. 7 motor around In group switch module 600, including bidirectional thyristor TR1, triode Q3, four resistance and capacitance C5.It is understood that motor Each electronic device in winding switch module 600 can be formed by the combination of one or more devices, and be not limited to list A device, as long as those electronic devices can realize expected function.

In the machine winding switch module 600 of Fig. 7, using excitations of the bidirectional thyristor TR1 as motor stator winding The switching device of electric current, i.e. bidirectional thyristor TR1 are connected in series in the exciting current circuit of motor stator, and pass through control The break-make of bidirectional thyristor TR1 controls the break-make of exciting current in motor stator winding, so as to which motor be controlled to turn to stop.

Specifically, machine winding switch module 600 receives motor drive signal MOTOR from logical signal processing module 500, Drive signal MOTOR is connected to the base stage of triode Q3 via resistance R44, resistance R45 be connected in parallel on triode Q3 base stage and Between collector.The emitter of triode Q3 is connected to the G poles (gate pole) of bidirectional thyristor TR1, bidirectional thyristor through resistance R8 Resistance R9 and capacitance C5 are parallel between the G poles of TR1 and T1 poles, and double-thyristor T1 is extremely connected to system common reference point GND, and its T2 pole is concatenated to the Exciting Windings for Transverse Differential Protection of motor stator.Specifically, the machine winding switch module 600 being shown in FIG. 7 Circuit in, when motor drive signal MOTOR be high level when, triode Q3 is in saturation conduction state, bidirectional thyristor TR1 G poles be connected to system negative voltage -5V, bidirectional thyristor TR1 conductings so that have electricity in motor stator energization winding through resistance R8 Stream passes through, and generates excitation field, driving motor rotation;When motor drive signal MOTOR is low level, triode Q3, which is in, to be cut Only state, bidirectional thyristor TR1 are not turned on, and do not have electric current to pass through in motor stator energization winding, are not generated excitation field, are not driven Dynamic motor rotation.

It, also can be by machine winding according to other arrangements of other modules of control circuit 10 in the scheme of replacement Switch module 600 be provided accordingly to cause current lead-through in Exciting Windings for Transverse Differential Protection when motor drive signal MOTOR is in low level and Cause that electric current is disconnected in Exciting Windings for Transverse Differential Protection when motor drive signal MOTOR is in high level.

By taking the exemplary embodiment shown in the attached drawing of the present invention as an example, since logical signal processing module 500 is set To cause, as rotor-position signal HALL and alternating current zero cross signal SYN contrary signs, the motor drive signal MOTOR of output is Digital high " 1 ", at this time bidirectional thyristor TR1 conductings, generates excitation field;And when rotor-position signal HALL and alternating current During zero cross signal SYN jack per lines, the motor drive signal MOTOR of output is digital low " 0 ", and bidirectional thyristor TR1 is not at this time Conducting, does not generate excitation field, so as to which machine winding switch module 600 according to the present invention helps to realize such technology effect Fruit so that the magnetic field that the Exciting Windings for Transverse Differential Protection of motor stator generates always is suitable for driving rotor and is rotated along a certain expected direction.

Based on techniques described above scheme, such technique effect can be realized so that logical signal processing module 500 can be based on rotor current location (i.e. rotor be signal HALL) and alternating current positive and negative state (i.e. alternating current zero passage letter Number SYN) carry out output motor drive signal MOTOR, for controlling the break-make of electric current in the Exciting Windings for Transverse Differential Protection of motor stator, so as to control The break-make of excitation field so that the magnetic field that the Exciting Windings for Transverse Differential Protection of motor stator generates always is suitable for driving rotor along a certain expected side To rotation.It is highly preferred that logical signal processing module 500 is realized by pure hardware circuit, particularly, pass through diode, three poles It manages the simple combination with resistance and realizes, without additional software or MCU, reduce assembling difficulty and required signal Precision so as to reduce cost, and improves the reliability of circuit.

The above be only the present invention exemplary embodiment, protection domain and is not intended to limit the present invention, this hair Bright protection domain is determined by appended claim.

Each in the above-mentioned constituent element of electronic device according to various embodiments of the present invention can include one Or multiple components, and the title of corresponding constituent element can be different according to the type of electronic device.It is according to the present invention The electronic device of various embodiments can include at least one of above-mentioned constituent element, and can be omitted certain constituent elements or Further include other additional constituent elements.In addition, certain compositions of electronic device according to various embodiments of the present invention Element can combine and form an entirety, so as to equally perform the work(of corresponding constituent element before bonding Energy.

Although the present invention has shown and described by reference to various embodiments, it should be understood by those skilled in the art that It is various changes in form and details can be made wherein, without departing from this hair limited by appended claims Bright range.

Claims (17)

1. a kind of circuit for controlling motor (10), which is characterized in that
The control circuit (10) includes:
Alternating current zero crossing detection module (200) for detecting the positive and negative and voltage zero-cross state of the alternating current of driving motor, and exports Indicate the alternating current zero cross signal (SYN) of alternating current current state;
Rotor-position detection module (400) for detecting the current location of rotor (402), and exports instruction rotor-position Rotor-position signal (HALL);
Logical signal processing module (500), for receiving the alternating current zero cross signal (SYN) and the rotor-position signal (HALL), and based on two signal output motor drive signals (MOTOR);
Machine winding switch module (600) for receiving the motor drive signal (MOTOR), and drives according to the motor of reception Signal (MOTOR) is moved to control the electric current for the Exciting Windings for Transverse Differential Protection (403) for flowing through motor stator so that the stator excitation winding generated Excitation field always drives the rotor (402) to be rotated along a fixed-direction,
Wherein, the logical signal processing module (500) generates the motor drive signal (MOTOR) by logic gate chip, Or generate the motor drive signal by using the signal logic relationship between one or more base electronic components (MOTOR)。
2. control circuit (10) according to claim 1, which is characterized in that
The alternating current zero crossing detection module (200), the rotor-position detection module (400) and the machine winding switch module (600) do not include micro controller unit or unit under software control.
3. control circuit (10) according to claim 1, which is characterized in that
The motor drive signal (MOTOR) of logical signal processing module (500) output is digital signal, machine winding switch module (600) electric current that the Exciting Windings for Transverse Differential Protection for flowing through motor stator is controlled by the motor drive signal (MOTOR), so as to control motor The excitation field of stator.
4. control circuit (10) according to claim 3, which is characterized in that
Rotor-position detection module (400) includes magnetic devices (401), which is arranged in rotor (402) Top, and output rotor position signal (HALL) is used to indicate the magnetic pole of permanent magnet of rotor relative to Exciting Windings for Transverse Differential Protection (403) left part and/or the orientation of right part.
5. control circuit (10) according to claim 4, which is characterized in that
Rotor-position signal (HALL) is digital signal,
The magnetic devices (401) are configured so that, when the magnetic devices (401) detect the permanent magnet of rotor Magnetic field S extremely close to magnetic devices (401) when, the rotor-position signal (HALL) of output is high level, when described When magnetic devices (401) detect the N in the magnetic field of the permanent magnet of rotor extremely close to magnetic devices (401), output Rotor-position signal (HALL) be low level.
6. control circuit (10) according to claim 4, which is characterized in that
Rotor-position signal (HALL) is digital signal,
The magnetic devices (401) are configured so that, when the magnetic devices (401) detect the permanent magnet of rotor Magnetic field S extremely close to magnetic devices (401) when, the rotor-position signal (HALL) of output is low level, when described When magnetic devices (401) detect the N in the magnetic field of the permanent magnet of rotor extremely close to magnetic devices (401), output Rotor-position signal (HALL) be high level.
7. control circuit (10) according to claim 4, which is characterized in that the magnetic devices (401) are Hall Sensor.
8. control circuit (10) according to claim 3, which is characterized in that
Alternating current zero cross signal (SYN) is digital signal, also,
Alternating current zero crossing detection module (200) is configured such that:When the electric current of the zero line output of AC power (100) is alternating current Negative half period when, the alternating current zero crossing signal (SYN) of output is low level;When the electric current of the zero line output of AC power (100) is During the positive half cycle of alternating current, the alternating current zero crossing signal (SYN) of output is high level.
9. control circuit (10) according to claim 3, which is characterized in that
Alternating current zero cross signal (SYN) is digital signal, also,
Alternating current zero crossing detection module (200) is configured such that:When the electric current of the zero line output of AC power (100) is alternating current Negative half period when, the alternating current zero crossing signal (SYN) of output is high level;When the electric current of the zero line output of AC power (100) is During the positive half cycle of alternating current, the alternating current zero crossing signal (SYN) of output is low level.
10. control circuit (10) according to claim 3, which is characterized in that
Motor drive signal (MOTOR) by logical signal processing module (500) output is digital signal, also,
Machine winding switch module (600) is configured such that:When motor drive signal (MOTOR) is high level, generate logical Cross the electric current of the Exciting Windings for Transverse Differential Protection (403) of motor stator;When motor drive signal (MOTOR) is low level, does not generate and pass through electricity The electric current of the Exciting Windings for Transverse Differential Protection of machine stator.
11. control circuit (10) according to claim 3, which is characterized in that
Machine winding switch module (600) includes bidirectional thyristor module (TR1), and passes through the bidirectional thyristor module (TR1) electric current for the Exciting Windings for Transverse Differential Protection for flowing through motor stator is controlled.
12. the control circuit (10) according to any one in claim 3-11, which is characterized in that
Alternating current zero cross signal (SYN) and rotor-position signal (HALL) they are digital signal, also,
Logical signal processing module (500) is provided so that:When alternating current zero cross signal (SYN) and rotor-position signal (HALL) during contrary sign, the motor drive signal (MOTOR) of output to generate the electric current of the Exciting Windings for Transverse Differential Protection by motor stator, when When alternating current zero cross signal (SYN) and rotor-position signal (HALL) jack per line, the motor drive signal (MOTOR) of output is not so that Generate the electric current of the Exciting Windings for Transverse Differential Protection by motor stator.
13. the control circuit (10) according to any one in claim 3-11, which is characterized in that
Alternating current zero cross signal (SYN) and rotor-position signal (HALL) they are digital signal, also,
Logical signal processing module (500) is provided so that:When alternating current zero cross signal (SYN) and rotor-position signal (HALL) during jack per line, the motor drive signal (MOTOR) of output to generate the electric current of the Exciting Windings for Transverse Differential Protection by motor stator, when When alternating current zero cross signal (SYN) and rotor-position signal (HALL) contrary sign, the motor drive signal (MOTOR) of output is not so that Generate the electric current of the Exciting Windings for Transverse Differential Protection by motor stator.
14. control circuit (10) according to claim 1, which is characterized in that
The control circuit (10) further includes AC DC modular converter (300), for that will come from the exchange of AC power (100) Electricity is converted to direct current, and to other module for power supply of control circuit (10).
15. a kind of motor control assembly (1), which is characterized in that
The motor control assembly (1) includes:
AC power (100),
Such as claim 1-14 any one of them control circuit (10) and
Motor (700),
Wherein, AC power (100) supplies power to control circuit (10), and motor (700) is flowed through in the control circuit (10) control The electric current of the Exciting Windings for Transverse Differential Protection of stator.
16. a kind of motor control assembly (1), which is characterized in that including such as claim 1-13 any one of them control circuit (10)。
17. a kind of control circuit (10) using such as any one in claim 1-14 controls the method for motor.
CN201611162609.4A 2016-12-15 2016-12-15 Circuit for controlling motor applies the motor control assembly and method of the circuit CN108233795A (en)

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CN201611162609.4A CN108233795A (en) 2016-12-15 2016-12-15 Circuit for controlling motor applies the motor control assembly and method of the circuit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN102751922A (en) * 2011-04-19 2012-10-24 江门市地尔汉宇电器股份有限公司 Miniature permanent magnet synchronous motor
CN105375831A (en) * 2014-08-08 2016-03-02 德昌电机(深圳)有限公司 Driving circuit of permanent-magnet motor

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CN201839250U (en) * 2010-01-21 2011-05-18 艾如菊 Single-phase permanent magnet synchronous motor with steering control circuit and steering control circuit
CN102751922A (en) * 2011-04-19 2012-10-24 江门市地尔汉宇电器股份有限公司 Miniature permanent magnet synchronous motor
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