CN102195540B - Motor driving device - Google Patents
Motor driving device Download PDFInfo
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- CN102195540B CN102195540B CN201010127873.0A CN201010127873A CN102195540B CN 102195540 B CN102195540 B CN 102195540B CN 201010127873 A CN201010127873 A CN 201010127873A CN 102195540 B CN102195540 B CN 102195540B
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Abstract
The invention relates to a motor driving device which comprises a main driving circuit, a detecting control circuit and a standby driving circuit, wherein the main driving circuit is provided with a plurality of driving current output terminals which are used for coupling a stator coil group of a motor; the detecting control circuit is coupled with the main driving circuit; the standby driving circuit is coupled with the detecting control circuit and is also provided with driving current output terminals with same number as the driving current output terminals of the main driving circuit; and the plurality of driving current output terminals of the standby driving circuit are respectively connected with the plurality of driving current output terminals of the main driving circuit in parallel.
Description
Technical field
The present invention is about a kind of motor drive, and especially a kind of have a main drive circuit and a redundant drive circuit, a motor drive rotating to control single motor.
Background technology
Motor technologies is being played the part of very important role in the development of automation science and technology now.Particularly be applied to fan, the priming air-flow because motor can drive fan rotation, and then reach the object of wind dispelling heat radiation, is therefore quite suitable in electronic industry the heat radiation operation for electronic product.
As shown in Figure 1, it discloses a kind of existing motor drive, and this motor drive comprises a control circuit 81 and one drive circuit 82.This existing motor drive rotates in order to control a motor 83.This control circuit 81 couples this drive circuit 82; This drive circuit 82 couples a stator coil of this motor 83.In the operation of said motor drive unit, these control circuit 81 output one control signals are given this drive circuit 82, and make this drive circuit 82 drive the stator coil of controlling this motor 83 to produce alternating magnetic field, and produce rotation with a rotor magnet effect of this motor 83.
Shown in Fig. 1, when this motor 83 is applied to a fan system, a rotor 831 of this motor 83 can be in conjunction with an impeller 9, so that this motor drive is when controlling the rotor 831 of a motor 83 and rotating, can drive this impeller 9 rotations, to carry out the heat radiation operation of electronic product simultaneously.
Yet, this existing motor drive is connected in series mutually by this control circuit 81 and this drive circuit 82, therefore if this control circuit 81 or this drive circuit 82 wherein one while breaking down, this motor 83 cannot work normally, therefore above-mentioned existing motor drive will have the shortcoming that circuit operation reliability is low.For these reasons, be necessary further to improve above-mentioned existing motor drive.
Summary of the invention
Main purpose of the present invention is to provide a kind of motor drive, and this motor drive has the effect that improves circuit operation reliability.
The motor drive according to the present invention, comprises a main drive circuit, and detects control circuit and a redundant drive circuit.This main drive circuit has several drive current outputs, and these several drive current outputs are for a sets of stator coils that couples a motor; This detection control circuit couples this main drive circuit; This redundant drive circuit couples this detection control circuit, and this redundant drive circuit also has the drive current output identical with the drive current output quantity of this main drive circuit, and several drive current outputs of this redundant drive circuit connect respectively several drive current outputs of this main drive circuit.
Accompanying drawing explanation
Fig. 1: the driving framework block schematic diagram of existing motor drive.
Fig. 2: the driving framework block schematic diagram of the motor drive of first embodiment of the invention.
Fig. 3: the circuit connection diagram of the motor drive of first embodiment of the invention.
Fig. 4: the circuit connection diagram of the motor drive of second embodiment of the invention.
Fig. 5: the circuit connection diagram of the motor drive of third embodiment of the invention.
Fig. 6: the circuit connection diagram of the motor drive of fourth embodiment of the invention.
Fig. 7: the driving framework block schematic diagram of the motor drive of fifth embodiment of the invention.
Fig. 8: the driving framework block schematic diagram of the motor drive of sixth embodiment of the invention.
Main element symbol description
The main drive circuit 111 drive current outputs of 1 motor drive 11
112 driven unit 113 control assembly 1131 turn signal outputs
114 Hall sensors 12 detect control circuit 121 microcontrollers
1211 input end 1212 control output end 122 control switchs
1221 control end 1,222 first link 1,223 second links
13 redundant drive circuit 131 drive current output 132 driven units
133 control assembly 134 Hall sensor 14 protection diodes
15 circuit board unit 16 circuit board unit 2 motors
21 sets of stator coils 22 rotor 3 motor drives
31 main drive circuit 311 drive current output 312 driven units
313 Hall sensor 3131 turn signal outputs 32 detect control circuit
321 323 second control output ends, input end 322 first control output ends
33 redundant drive circuit 331 drive current output 332 driven units
34 protection diode 35 circuit board unit 36 circuit board units
The main drive circuit 42 of 4 motor drive 41 detects control circuit
43 redundant drive circuit 5 motor 51 sets of stator coils
52 rotor 511 first coil 512 second coils
The main drive circuit 62 of 6 motor drive 61 detects control circuit
63 redundant drive circuit 7 motor 71 sets of stator coils
711 first coil 712 second coil 713 tertiary coils
72 rotor 9 impeller VCC power supplys
M1 electronic switch M2 electronic switch M3 electronic switch
M4 electronic switch M5 electronic switch M6 electronic switch
M7 electronic switch M8 electronic switch S1 electronic switch
S 8 electronic switch 81 control circuit 82 drive circuits
83 motor 831 rotor 9 impellers
Embodiment
For above-mentioned and other object of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and coordinate accompanying drawing, be described in detail below:
Please refer to shown in Fig. 2, it discloses the circuit box schematic diagram of the motor drive 1 of first embodiment of the invention, and this motor drive 1 is in order to connect a motor 2, to drive this motor 2 to rotate.This motor drive 1 comprises a main drive circuit 11, and detects control circuit 12 and a redundant drive circuit 13.This main drive circuit 11 has several drive current outputs 111, and these several drive current outputs 111 are for a sets of stator coils 21 that couples this motor 2; This main drive circuit 11 separately couples this detection control circuit 12; This detection control circuit 12 couples mutually with this redundant drive circuit 13 again; Again and, this redundant drive circuit 13 also has several drive current outputs 131, wherein the quantity of the quantity of the drive current output 131 of this redundant drive circuit 13 and the drive current output 111 of this main drive circuit 11 is identical, and be connected in parallel respectively several drive current outputs 111 of this main drive circuit 11 of several drive current outputs 131 of this redundant drive circuit 13; As shown in Figure 2, what is called is connected in parallel and that is to say, one of them of two drive current outputs 131 of this redundant drive circuit 13 connects one of them of two drive current outputs 111 of this main drive circuit 11; Another drive current output 131 of this redundant drive circuit 13 connects another drive current output 111 of this main drive circuit 11.
When the main drive circuit 11 of first embodiment of the invention is normally worked, by the operation of this main drive circuit 11, to drive the current direction of controlling this sets of stator coils 21; Simultaneously, this main drive circuit 11 produces a turn signal, and this turn signal is inputted to this detection control circuit 12, this detection control circuit 12 judges according to this turn signal whether this main drive circuit 11 normally works, if judge, (for example this turn signal is that a cycle is during pulse wave signal to this turn signal for normal, this detects control circuit 12 these main drive circuits 11 of judgement is normal work), now, this detects control circuit 12 and produces a shutdown signal, to control this redundant drive circuit 13, does not carry out work.
Yet, when main drive circuit 11 operation exception of first embodiment of the invention, the turn signal that this main drive circuit 11 produces is judged as extremely (for example, when this turn signal is a high level direct current signal or low level signal by this detection control circuit 12, this detects control circuit 12 these main drive circuits 11 of judgement is abnormal work), this detection control circuit 12 is now controlled this redundant drive circuit 13 and is carried out work, to continue to drive the sets of stator coils 21 of this motor 2, and then maintain the normal running of this motor 2.
In addition, this motor 2 has a rotor 22, and this rotor 22 can be in conjunction with the impeller 9 of fan system, when this motor drive 1 drives the rotor 22 of this motor 2 to rotate, this rotor 22 can drive this impeller 9 to rotate simultaneously, with the use as carrying out the wind dispelling heat radiation of electronic product.
Please refer to shown in Fig. 3, it discloses the circuit connection diagram of motor drive 1 with this motor 2 of first embodiment of the invention, and wherein this motor 2 is a brushless single phase d.c. motor.
Shown in Fig. 3, this main drive circuit 11 separately comprises a driven unit 112, a control assembly 113 and a Hall sensor 114.This driven unit 112, this control assembly 113 and this Hall sensor 114 are coupled to a power supply VCC.This driven unit 112 forms a bridge circuit, further says it, and this driven unit 112 comprises several electronic switch M1-M4, and this two electronic switchs M1 and M4 connect mutually, and its place of being connected in series is an output of this bridge circuit; And also series connection mutually of another two electronic switch M2 and M 3, and its place of being connected in series is another output of this bridge circuit, two drive current outputs 111 of this main drive circuit 11 are drawn from two outputs of this bridge circuit.Wherein, above-mentioned this driven unit 112 and this control assembly 113 can be formed at a driving and control in IC, and in addition, this Hall sensor 114 also can be selected to be formed at this driving and control in IC.
This control assembly 113 has several control output ends, these several control output ends connect respectively several electronic switch M1-M4 of this driven unit 112, in addition, this control assembly 113 connects this Hall sensor 114, so, this control assembly 113 receives the Hall sensing signal that this Hall sensor 114 produces, and this control assembly 113 to producing control signal by Hall sensing signal, to control respectively the switching motion of these several electronic switch M1-M4.This control assembly 113 separately has a turn signal output 1131, this turn signal output 1131 couples this detection control circuit 12, wherein this turn signal output 1131 can be selected from a tach signal pin position (FrequencyGenerator, FG) the locked alarm signal pin of or one motor position (Rotation Detection, RD); So, this detection control circuit 12 can receive the turn signal that those pin positions produce, so as to judging whether this main drive circuit 11 normally works.
Shown in Fig. 3, this detection control circuit 12 comprises a controller 121 and a control switch 122.This controller 121 has an input end 1211 and a control output end 1212, the input end 1211 of this controller 121 connects the turn signal output 1131 of this control assembly 113, and the control output end 1212 of this controller 121 connects this control switch 122, so, the controller 121 of this detection control circuit 12 is in order to receive this turn signal, and this controller 121 is also controlled these control switch 122 formation conductings or opens circuit according to the turn signal receiving.Wherein this controller 121 can be selected from a microcontroller (Micro Controller Unit) or a conversion loop, and this conversion loop can be comprised of analogous circuit, for example, by operational amplifier or transistor driving switch, form this conversion loop.
In more detail,, shown in Fig. 3, this control switch 122 has a control end 1221, one first link 1222 and one second link 1223.The control end 1221 of this control switch 122 connects the control output end 1212 of this controller 121, and the first link 1222 of this control switch 122 and the second link 1223 couple respectively a power supply leading-in end of power supply VCC and this redundant drive circuit 13, so, by controlling the conducting of this control switch 122 or opening circuit, to determine the work of this redundant drive circuit 13.Better optional PMOS transistor switch (as shown in Figure 3) or the relay of doing for oneself of this control switch 122 wherein.
In addition, shown in Fig. 3, this redundant drive circuit 13 separately comprises a driven unit 132, a control assembly 133 and a Hall sensor 134.This driven unit 132, this control assembly 133 and this Hall sensor 134 are coupled to a power supply VCC by this control switch 122.This driven unit 132 forms a bridge circuit, further says it, and this driven unit 132 comprises several electronic switch M5-M8, and this two electronic switchs M5 and M8 connect mutually, and its place of being connected in series is an output of this bridge circuit; And also series connection mutually of another two electronic switch M6 and M7, and another output that its place of being connected in series is this bridge circuit, two drive current outputs 131 of this redundant drive circuit 13 are drawn from two outputs of this bridge circuit, and be connected in parallel respectively two drive current outputs 111 of this main drive circuit 11 of two drive current outputs 131 of this redundant drive circuit 13.Wherein, the driven unit 132 of above-mentioned this redundant drive circuit 13 and this control assembly 133 can be formed at a driving and control in IC, and in addition, this Hall sensor 134 also can be selected to be formed at this driving and control in IC.
The use that wherein the redundant drive circuit 13 of first embodiment of the invention is also provided with this Hall sensor 134 is intended to: when abnormal reason of rotating occurs this motor 2, be that Hall sensor 114 faults by this main drive circuit 11 are when caused, this motor drive 1 still can be by the action of the Hall sensor 134 of this redundant drive circuit 13, continue to detect the rotor magnetic pole position of this motor 2, to maintain the normal operation of this motor 2.
In other words, if do not consider the situation that the Hall sensor 114 of above-mentioned this main drive circuit 11 may break down, also can save the Hall sensor 134 that this redundant drive circuit 13 is set, and by the Hall sensor 114 of the control assembly of this redundant drive circuit 13 133 these main drive circuits 11 of connection, so can reduce the circuit setup cost of this redundant drive circuit 13.
According to the fault of this main drive circuit 11 whether the redundant drive circuit 13 of first embodiment of the invention, and determine whether to start this redundant drive circuit 13 by this detection control circuit 12, this redundant drive circuit 13 further illustrates as follows with the detailed operation of this detection control circuit 12:
When the main drive circuit 11 of first embodiment of the invention is normally worked, this main drive circuit 11 produces this turn signal, the controller 121 of this detection control circuit 12 judges that according to this turn signal this main drive circuit 11 normally works (for example, when this controller 121 is received from the turn signal of sending FG pin position and is periodic pulses signal, these controller 121 these main drive circuits 11 of judgement are normal work), the controller 121 of this detection control circuit 12 is now controlled these control switch 122 formation and is opened circuit, due to this power supply, VCC is blocked by this control switch 122, therefore this power supply VCC is unable to supply voltage to the driven unit 132 of this redundant drive circuit 13, control assembly 133 and Hall sensor 134, so this redundant drive circuit 13 does not carry out work in this situation.
Yet, when main drive circuit 11 operation exception of first embodiment of the invention, this turn signal that this main drive circuit 11 produces is judged as by the controller 121 of this detection control circuit 12 that (for example this controller 121 is received from the turn signal that FG pin position is sent extremely, and when this controller 121 judges that according to this turn signal the operation rotating speed of this motor 2 and a predetermined control rotating speed are not inconsistent, these controller 121 these main drive circuits 11 of judgement are abnormal work), the controller 121 of this detection control circuit 12 is now controlled this control switch 122 and is formed conducting, the voltage of this power supply VCC is supplied to each circuit member of this redundant drive circuit 13 by this control switch 122, required power supply so that the normal running that this redundant drive circuit 13 maintains this motor 2 to be provided.
In addition, shown in Fig. 3, this motor drive 1 separately comprises a protection diode 14, and these protection diode 14 series connection are arranged between this main drive circuit 11 and this redundant drive circuit 13; For example the power supply leading-in end of this main drive circuit 11 and and the power supply leading-in end of this redundant drive circuit 13 between this protection diode 14 is set.So; effect by this protection diode 14 is as follows: when this main drive circuit 11 burns because of the electric current by abnormal at work, this abnormal current can be protected the obstruct of diode 14 and unlikely this detection control circuit 12 and this redundant drive circuit 13 of burning by this.
Shown in Fig. 3; this motor drive 1 more includes a circuit board unit 15; this circuit board unit 15 is a single circuit plate; the extra peripheral circuit of this main drive circuit 11, this detection control circuit 12, this redundant drive circuit 13, this protection diode 14 and this motor drive 1 can be co-located on this single circuit plate, so that above-mentioned these circuit members implementing circuit wiring operation thereon.
Please refer to shown in Fig. 4, it discloses the motor drive 1 of second embodiment of the invention, compared to the first embodiment, the circuit board unit 16 of this motor drive 1 comprises two circuit board wafers, a wherein circuit board wafer of this circuit board unit 16 is at least provided with this main drive circuit 11, another circuit board wafer of this circuit board unit 16 is at least provided with this redundant drive circuit 13, in addition, this detection control circuit 12 and this protection diode 14 can select to be arranged on one of them of these two circuit board wafers, and this detection control circuit 12 is better, be co-located on same circuit board wafer with this redundant drive circuit 13, so, when this main drive circuit 11 fault, as long as the circuit board wafer that is provided with this main drive circuit 11 is replaced, this set-up mode can improve the circuit member of this motor drive 1 and examine the convenience while changing.
Please refer to shown in Fig. 5, it discloses the motor drive 3 of third embodiment of the invention, and this motor drive 3 comprises a main drive circuit 31, and detects control circuit 32 and a redundant drive circuit 33.This main drive circuit 31 has several drive current outputs 311, and these several drive current outputs 311 are for the sets of stator coils 21 that couples this motor 2; This main drive circuit 31 separately couples this detection control circuit 32; This detection control circuit 32 couples mutually with this redundant drive circuit 33 again; Again and, this redundant drive circuit 33 also has several drive current outputs 331, wherein the quantity of the quantity of the drive current output 331 of this redundant drive circuit 33 and the drive current output 311 of this main drive circuit 31 is identical, and be connected in parallel respectively several drive current outputs 311 of this main drive circuit 31 of several drive current outputs 331 of this redundant drive circuit 33.
Shown in Fig. 5, thin portion circuit connection diagram when its motor drive 3 that discloses third embodiment of the invention is a brushless single phase d.c. motor with this motor 2.Compared to first embodiment of the invention and the second embodiment, the setting that the main drive circuit 31 of the 3rd embodiment saves this control assembly, and only comprising a driven unit 312 and a Hall sensor 313, this driven unit 312 and this Hall sensor 313 are coupled to this power supply VCC.This driven unit 312 forms a bridge circuit, further says it, and this driven unit 312 comprises several electronic switch S1-S4, and this two electronic switchs S1 and S4 connect mutually, and its place of being connected in series is an output of this bridge circuit; And also series connection mutually of another two electronic switch S2 and S3, and its place of being connected in series is another output of this bridge circuit, two drive current outputs 311 of this main drive circuit 31 are drawn from two outputs of this bridge circuit.
Shown in Fig. 5, the Hall sensor 313 of third embodiment of the invention has at least one turn signal output 3131, this at least one turn signal output 3131 connects this and detects control circuit 32, so, this detection control circuit 32 can receive the Hall sensing signal that this Hall sensor 313 produces, wherein in the 3rd embodiment, this Hall sensing signal is considered as this turn signal, this detection control circuit 32 can receive this Hall sensing signal, and judges according to this whether this main drive circuit 31 normally works.
Shown in Fig. 5, this detection control circuit 32 is a microcontroller, and it has the functions such as signal reception, output and computing (comprising judgement).Compared to first embodiment of the invention and the second embodiment, the detection control circuit 32 of the 3rd embodiment is integrated the operation of this two control assembly 113,133 and this control switch 122, so can reduce motor drive 3 circuit volume and cost are set.
This detection control circuit 32 has an input end 321, several the first control output end 322 and several the second control output end 323.This input end 321 that detects control circuit 32 connects the turn signal output 3131 of this Hall sensor 313, these several the first control output ends 322 connect respectively several electronic switch S1-S4 of this driven unit 312, so that this detection control circuit 32 can be controlled the switching motion of several electronic switch S1-S4 of this driven unit 312.Several second control output ends 323 of this detection control circuit couple this redundant drive circuit 33.
Further say it, this redundant drive circuit 33 separately comprises a driven unit 332.This driven unit 332 couples this power supply VCC.This driven unit 332 forms a bridge circuit, and this driven unit 332 also comprises several electronic switch S5-S8, and this two electronic switchs S5 and S8 connect mutually, and its place of being connected in series is an output of this bridge circuit; And also series connection mutually of another two electronic switch S6 and S7, and its place of being connected in series is another output of this bridge circuit, two drive current outputs 331 of this redundant drive circuit 33 are drawn from two outputs of this bridge circuit.Several second control output ends 323 of this detection control circuit 32 connect respectively several electronic switch S5-S8 of this driven unit 332, so that this detection control circuit 32 can be controlled the switching motion of several electronic switch S5-S8 of this driven unit 332.
So, this detects control circuit 32 and is receiving this Hall sensing signal, and judges when this Hall sensing signal is normal turn signal, and this detection control circuit 32 is controlled this redundant drive circuit 33 and do not carried out work.Otherwise when the Hall sensing signal receiving in 32 judgements of this detection control circuit is abnormal turn signal, this detections control circuit 32 in time this redundant drive circuit 33 of control carries out work, and then maintains the normal running of this motor 2.
In addition, shown in Fig. 5, this motor drive 3 separately comprises a protection diode 34, and these protection diode 34 series connection are arranged between this main drive circuit 31 and this redundant drive circuit 33; For example the power supply leading-in end of this main drive circuit 31 and and the power supply leading-in end of this redundant drive circuit 33 between this protection diode 34 is set.
Shown in Fig. 5; this motor drive 3 more includes a circuit board unit 35; this circuit board unit 35 is a single circuit plate; the extra peripheral circuit of this main drive circuit 31, this detection control circuit 32, this redundant drive circuit 33, this protection diode 34 and this motor drive 3 can be co-located on this single circuit plate, so that above-mentioned these circuit members implementing circuit wiring operation thereon.
Please refer to shown in Fig. 6, it discloses the motor drive 3 of fourth embodiment of the invention, compared to the 3rd embodiment, the circuit board unit 36 of this motor drive 3 comprises two circuit board wafers, a wherein circuit board wafer of this circuit board unit 36 is at least provided with this main drive circuit 31, another circuit board wafer of this circuit board unit 36 is at least provided with this redundant drive circuit 33, in addition, this detection control circuit 32 and this protection diode 14 can select to be arranged on one of them of these two circuit board wafers, and this detection control circuit 32 is better, be co-located on same circuit board wafer with this redundant drive circuit 33, so, when this main drive circuit 31 fault, as long as the circuit board wafer that is provided with this main drive circuit 31 is replaced, this set-up mode can improve the circuit member of this motor drive 3 and examine the convenience while changing.
Please refer to shown in Fig. 7, it discloses the motor drive 4 of fifth embodiment of the invention.This motor drive 4 is electrically connected to a motor 5, and wherein this motor 5 is a two-phase Brushless DC motor, and this motor 5 has a sets of stator coils 51, and this sets of stator coils 51 includes one first coil 511 and one second coil 512.Each embodiment compared to above-mentioned brushless single phase d.c. motor, one main drive circuit 41 of this motor drive 4 and a redundant drive circuit 43 coordinate this two-phase brushless d.c. motor and are designed to respectively two-phase bridge circuit, by the simple circuit variation of above-mentioned bridge circuit, can reach equally the present invention when this main drive circuit 41 fault, this redundant drive circuit 43 can replace the driving operation that this main drive circuit 41 carries out this motor 5, and maintains the object of these motor 5 continuous firings.
The main drive circuit 41 of fifth embodiment of the invention and redundant drive circuit 43 are connected framework with a thin portion circuit detecting between control circuit 42, and the configuration of circuit board unit also can coordinate the circuit framework of two-phase bridge circuit to implement the mode of operation of first embodiment of the invention to the four embodiment, in this, seldom repeat.
In addition, this motor 5 has a rotor 52, and this rotor 52 can be in conjunction with the impeller 9 of this fan system, to carry out the use of the wind dispelling heat radiation of heater element.
Please refer to shown in Fig. 8, it discloses the motor drive 6 of sixth embodiment of the invention.This motor drive 6 is electrically connected to a motor 7, and wherein this motor 7 is a three-phase brushless d.c. motor, and this motor 7 has a sets of stator coils 71, and this sets of stator coils 71 includes one first coil 711, one second coil 712 and a tertiary coil 713.Compared to the various embodiments described above, one main drive circuit 61 of this motor drive 6 and a redundant drive circuit 63 coordinate this three-phase brushless d.c. motor and are designed to respectively three-phase bridge circuit, by the simple circuit variation of above-mentioned bridge circuit, can reach equally the present invention when this main drive circuit 61 fault, this redundant drive circuit 63 can replace the driving operation that this main drive circuit 61 carries out this motor 7, and maintains the object of these motor 7 continuous firings.
The main drive circuit 61 of sixth embodiment of the invention and redundant drive circuit 63 are connected framework with a thin portion circuit detecting between control circuit 62, and the configuration of circuit board unit also can coordinate the circuit framework of three-phase bridge circuit to implement the mode of operation of first embodiment of the invention to the four embodiment, in this, seldom repeat.
In addition, this motor 7 has a rotor 72, and this rotor 72 can be in conjunction with the impeller 9 of this fan system, to carry out the use of the wind dispelling heat radiation of heater element.
In sum, the present invention controls this redundant drive circuit OnNow when this main drive circuit fault by this detection control circuit, and to maintain motor drive continuous firing of the present invention, the present invention can reach the effect that improves circuit operation reliability really.
Claims (15)
1. a motor drive, is characterized in that comprising:
A main drive circuit, there are several drive current outputs, a driven unit, a control assembly and a Hall sensor, these several drive current outputs are for the sets of stator coils that couples a motor, this driven unit, this control assembly and this Hall sensor are coupled to a power supply, this driven unit is a bridge circuit with several electronic switchs, several drive current outputs of this main drive circuit are drawn from several outputs of this bridge circuit, this control assembly has several electronic switchs that several control output ends connect respectively this driven unit, this Hall sensor connects this control assembly,
A detection control circuit, couple this main drive circuit, this detection control circuit comprises a controller and a control switch, this controller has an input end and a control output end, the input end of this controller connects a turn signal output of this control assembly, this control switch has a control end, first link and second link, the control end of this control switch connects the control output end of this controller, and the first link of this control switch couples this power supply; And
A redundant drive circuit, couple the second link of this control switch of this detection control circuit, and this redundant drive circuit also has the drive current output identical with the drive current output quantity of this main drive circuit, and several drive current outputs of this redundant drive circuit connect respectively several drive current outputs of this main drive circuit;
Wherein, when this main drive circuit is normally worked, this main drive circuit produces a turn signal, and by this turn signal output, this turn signal is inputted to this detection control circuit, if this detection control circuit judges that this turn signal is for normal, this detection control circuit produces a shutdown signal, to control this control switch formation, open circuit, and make this redundant drive circuit not carry out work, if this detection control circuit judges that this turn signal is for abnormal, this detection control circuit is controlled this control switch and is formed conducting, and makes this redundant drive circuit carry out work.
2. according to motor drive claimed in claim 1, it is characterized in that, the control assembly of this main drive circuit and this driven unit are formed at one and drive in control integration circuit.
3. according to motor drive claimed in claim 2, it is characterized in that, the Hall sensor of this main drive circuit is also formed in this driving control integration circuit jointly with control assembly and this driven unit of this main drive circuit.
4. according to motor drive claimed in claim 1, it is characterized in that, this control switch is PMOS transistor switch or relay.
5. according to the motor drive described in claim 1 or 4, it is characterized in that, this redundant drive circuit separately comprises a driven unit, a control assembly and a Hall sensor, the driven unit of this redundant drive circuit is a bridge circuit with several electronic switchs, several drive current outputs of this redundant drive circuit are drawn from several outputs of the bridge circuit of this redundant drive circuit, the control assembly of this redundant drive circuit has several control output ends, several control output ends of the control assembly of this redundant drive circuit connect respectively several electronic switchs of the driven unit of this redundant drive circuit, the Hall sensor of this redundant drive circuit connects the control assembly of this redundant drive circuit.
6. according to the motor drive described in claim 1,2,3 or 4, it is characterized in that, separately comprise a protection diode, this protection diode series connection is arranged between this main drive circuit and this redundant drive circuit.
7. according to motor drive claimed in claim 5, it is characterized in that, separately comprise a protection diode, this protection diode series connection is arranged between this main drive circuit and this redundant drive circuit.
8. according to motor drive claimed in claim 5, it is characterized in that, the control assembly of this redundant drive circuit and driven unit are jointly formed at one and drive control integration circuit.
9. according to motor drive claimed in claim 8, it is characterized in that, the Hall sensor of this redundant drive circuit is also formed in this driving control integration circuit jointly with control assembly and the driven unit of this redundant drive circuit.
10. according to motor drive claimed in claim 6; it is characterized in that; separately comprise a circuit board unit; this circuit board unit is a single circuit plate, and this main drive circuit, this detection control circuit, this redundant drive circuit and this protection diode are co-located on this single circuit plate.
11. according to motor drive claimed in claim 7; it is characterized in that; separately comprise a circuit board unit; this circuit board unit is a single circuit plate, and this main drive circuit, this detection control circuit, this redundant drive circuit and this protection diode are co-located on this single circuit plate.
12. according to motor drive claimed in claim 6; it is characterized in that; separately comprise a circuit board unit; this circuit board unit comprises two circuit board wafers; one of them circuit board wafer of this circuit board unit is at least provided with this main drive circuit; another circuit board wafer of this circuit board unit is at least provided with this redundant drive circuit, and this detection control circuit and this protection diode are arranged on these two circuit board wafers one of them.
13. according to the motor drive described in claim 12, it is characterized in that, this detection control circuit and this redundant drive circuit are co-located on same circuit board wafer.
14. according to motor drive claimed in claim 7; it is characterized in that; separately comprise a circuit board unit; this circuit board unit comprises two circuit board wafers; one of them circuit board wafer of this circuit board unit is at least provided with this main drive circuit; another circuit board wafer of this circuit board unit is at least provided with this redundant drive circuit, and this detection control circuit and this protection diode are arranged on these two circuit board wafers one of them.
15. according to the motor drive described in claim 14, it is characterized in that, this detection control circuit and this redundant drive circuit are co-located on same circuit board wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127873.0A CN102195540B (en) | 2010-03-19 | 2010-03-19 | Motor driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127873.0A CN102195540B (en) | 2010-03-19 | 2010-03-19 | Motor driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102195540A CN102195540A (en) | 2011-09-21 |
| CN102195540B true CN102195540B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010127873.0A Active CN102195540B (en) | 2010-03-19 | 2010-03-19 | Motor driving device |
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| CN (1) | CN102195540B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI665848B (en) * | 2017-12-08 | 2019-07-11 | 緯穎科技服務股份有限公司 | Power supply system and control method using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003102189A (en) * | 2001-09-25 | 2003-04-04 | Shinko Electric Co Ltd | Ac servomotor drive unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59607609D1 (en) * | 1995-05-11 | 2001-10-11 | Siemens Ag | Safe processing of safety-related process signals |
| WO1997009773A1 (en) * | 1995-09-08 | 1997-03-13 | Kabushiki Kaisha Yaskawa Denki | Power converter and power converting method |
| DE60215095T2 (en) * | 2001-09-19 | 2007-05-10 | Parker-Hannifin Corp., Cleveland | Motor drive and system |
| CN100555146C (en) * | 2008-03-06 | 2009-10-28 | 华中科技大学 | A kind of servo drive of large power long range permanent magnetism synchronous linear motor |
| CN101459409A (en) * | 2008-12-25 | 2009-06-17 | 浙江大学 | Frequency variable speed-adjusting device for both end power supplying multi-phase AC motor |
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2010
- 2010-03-19 CN CN201010127873.0A patent/CN102195540B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003102189A (en) * | 2001-09-25 | 2003-04-04 | Shinko Electric Co Ltd | Ac servomotor drive unit |
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| CN102195540A (en) | 2011-09-21 |
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