CN108540024A - A kind of device and method inhibiting the impact of brshless DC motor commutation terminal voltage - Google Patents
A kind of device and method inhibiting the impact of brshless DC motor commutation terminal voltage Download PDFInfo
- Publication number
- CN108540024A CN108540024A CN201810416226.8A CN201810416226A CN108540024A CN 108540024 A CN108540024 A CN 108540024A CN 201810416226 A CN201810416226 A CN 201810416226A CN 108540024 A CN108540024 A CN 108540024A
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- Prior art keywords
- absorbing circuit
- motor
- capacitance
- branch
- brshless
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/344—Active dissipative snubbers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of device and method of inhibition brshless DC motor commutation terminal voltage impact, for the device by inverter, motor threephase armature winding and 6 absorbing circuit compositions, circuit is simple, can improve the reliability of brushless DC motor without sensor commutation.The control method, by during motor commutation, absorbing circuit by making to be connected in parallel on the metal-oxide-semiconductor both ends of one phase winding of control works when this is mutually not turned on, its electric energy generated by self inductance is stored in the capacitance in absorbing circuit, armature winding self inductance effect can be eliminated and interfered caused by back-emf zero passage detection.
Description
Technical field
The present invention relates to brushless DC motor without sensor commutation fields, more particularly to a kind of inhibition brshless DC motor
The device and method of commutation terminal voltage impact.
Background technology
Brshless DC motor has good linear speed regulation, high-quality and high-efficiency easy running characteristic, simple in structure, small,
Light-weight, efficient, power factor (PF) is high, and torque/weight ratio is high, and rotary inertia is low, is easy to radiate, easy to maintain etc. excellent
Point, therefore application range is quite extensive.With the rapid development of power electronic devices, DC brushless motor utilizes electronics phase changer
Part greatly improves industry manufacture and the production of relevant automatic electric system department instead of mechanical brush and commutator segment
Efficiency and quality, while considering system cost and operational reliability, brushless direct current motor sensorless controls to obtain
It is more and more widely used.Because Based on Back-EMF Method has circuit simple, technology maturation, at low cost, simple and practicable, reliable
Equal many merits become more satisfactory and apply most brushless DC motor without position sensor control methods.In reality
In the brshless DC motor winding commutation process on border, since commutation winding current reduces suddenly, the own inductance of coil can be
During afterflow, become an electromotive force producer, and direction and it is original on the contrary, and be superimposed upon on neutral point, lead to commutation
Winding terminal voltge surge phenomenon, exchange phase winding back-emf zero passage detection cause very big interference.
Invention content
The object of the present invention is to provide a kind of device and methods of inhibition brshless DC motor commutation terminal voltage impact, can
Armature winding self inductance effect is eliminated to interfere caused by back-emf zero passage detection.
In order to achieve the above object, a kind of device of inhibition brshless DC motor commutation terminal voltage of the invention impact uses
Technical solution be：
A kind of device inhibiting the impact of brshless DC motor commutation terminal voltage, described device is by inverter, motor three-phase electricity
Pivot winding, 6 absorbing circuits, composition, wherein the inverter is formed by connecting by 3 pairs of metal-oxide-semiconductor bridge arms successively, the inverter
Output be connected to motor threephase armature winding；Each metal-oxide-semiconductor both ends absorbing circuit in parallel.
Preferably, the absorbing circuit is made of 2 IGBT, 2 resistance and 1 capacitance, one of resistance and one
IGBT is composed in series the first branch, and capacitance is connected in parallel on the first branch both ends and constitutes a parallel circuit, another resistance with it is another
One IGBT is composed in series the second branch, and the second branch is connected serially to the parallel circuit.
Preferably, the capacitance is polyester capacitance.
Preferably, the absorbing circuit is for consuming the electric energy that machine winding is generated by self inductance.
A method of inhibiting the impact of brshless DC motor commutation terminal voltage, include the following steps,
Step 1: when motor just starts, obtains the wherein any one phase stopping of three-phase windings and be conducted to the opposite potential zero passage
Time be T；
Step 2: during motor commutation, the metal-oxide-semiconductor for controlling the phase winding being not turned on is converted to shutdown shape by conducting state
When state, the absorbing circuit for being connected in parallel on the metal-oxide-semiconductor both ends is started to work；
Step 3: when absorbing circuit is started to work, the IGBT in the second branch is connected, in the first branch
IGBT is turned off, and absorbing circuit is to capacitor charging；
Step 4: absorbing circuit power cut-off after start-up operation T time, the IGBT shutdowns in the second branch, institute
State the IGBT conductings in the first branch, conductive discharge of the capacitance into the first branch；
It constantly repeats the above steps during motor commutation.
Preferably, all IGBT are controlled by DSP.
Compared with prior art, the advantages of technical scheme of the present invention and advantageous effect is mainly：
The device for inhibiting the impact of brshless DC motor commutation terminal voltage in technical solution of the present invention, simple in structure, cost
It is low, it securely and reliably, is easily installed, the reliability of brushless DC motor without sensor commutation can be improved.
The method for inhibiting the impact of brshless DC motor commutation terminal voltage of the present invention, by the turn-on and turn-off of IGBT and poly-
Ester capacitance stores the property of electric energy, preferably eliminates armature winding self inductance effect and is interfered caused by back-emf zero passage detection.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic device for inhibiting the impact of brshless DC motor commutation terminal voltage of the specific embodiment of the invention.
Specific implementation mode
Presently in connection with attached drawing, the present invention is described in detail.This figure is the schematic diagram of simplification, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of device of inhibition brshless DC motor commutation terminal voltage impact of the present invention, by inverter,
Motor threephase armature winding, absorbing circuit 1, absorbing circuit 2, absorbing circuit 3, absorbing circuit 4, absorbing circuit 5 and absorbing circuit 6
Composition.Wherein, the inverter is formed by connecting by 3 pairs of metal-oxide-semiconductor bridge arms successively, and output is connected to motor threephase armature winding；Institute
State 6 metal-oxide-semiconductor both ends that absorbing circuit 1 to absorbing circuit 6 is connected in parallel on respectively in the inverter.
In the present embodiment, the absorbing circuit 1 is by IGBT11, IGBT12, resistance R11, resistance R12 and capacitance C11 groups
Connect with resistance R12 the first branch to be formed in the first absorbing circuit at, wherein IGBT12, capacitance C11 be connected in parallel to it is described this
One branch both ends form the parallel circuit in the first absorbing circuit, and resistance R11 forms the first absorbing circuit after connecting with IGBT11
In the second branch, which is connected serially to the parallel circuit；
The absorbing circuit 2 is made of IGBT21, IGBT22, resistance R21, resistance R22 and capacitance C21；The absorption electricity
Road 3 is made of IGBT31, IGBT32, resistance R31, resistance R32 and capacitance C31；The absorbing circuit 4 by IGBT41, IGBT42,
Resistance R41, resistance R42 and capacitance C41 compositions；The absorbing circuit 5 is by IGBT51, IGBT52, resistance R51, resistance R52 and electricity
Hold C51 compositions；The absorbing circuit 6 is made of IGBT61, IGBT62, resistance R61, resistance R62 and capacitance C61.
The internal circuit of absorbing circuit 2 to absorbing circuit 6 is consistent with the internal circuit of absorbing circuit 1.
Specifically, the capacitance C11 to C61 is polyester capacitance.
Specifically, capacitance C11, capacitance C21 and capacitance C31 use rated voltage for 50V, and capacity is the polyester capacitance of 1 μ F.
Specifically, the absorbing circuit 1 is used to consume the electric energy of machine winding self inductance generation to absorbing circuit 6.
The method for inhibiting the impact of brshless DC motor commutation terminal voltage of the present embodiment, the control are described with reference to Fig. 1
Method processed includes the following steps：
Step 1: when motor just starts, obtains the wherein any one phase stopping of three-phase windings and be conducted to the opposite potential zero passage
Time be T；
Step 2: during motor commutation, the metal-oxide-semiconductor for controlling the phase winding being not turned on is converted to shutdown shape by conducting state
When state, the absorbing circuit for being connected in parallel on the metal-oxide-semiconductor both ends is started to work；
Step 3: when absorbing circuit is started to work, the IGBT in the second branch is connected, in the first branch
IGBT is turned off, and absorbing circuit is to capacitor charging；
Step 4: absorbing circuit power cut-off after start-up operation T time, the IGBT shutdowns in the second branch, institute
State the IGBT conductings in the first branch, conductive discharge of the capacitance into the first branch；
It constantly repeats the above steps during motor commutation.
Further, all IGBT are controlled by DSP.
In the present embodiment, it when motor just starts, obtains the wherein any one phase stopping of three-phase windings and is conducted to the opposite electricity
The time of gesture zero passage is T.
When motor rotates in the forward direction：Motor AB is conducted to convert to AC and be conducted period, and B phases start to be not turned on, and MOS6 is by leading
Logical state is converted to absorbing circuit at the time of off state 6 and is started to work, and IGBT61 conductings, IGBT62 shutdowns, B phase windings are by certainly
The electric energy that sense phenomenon generates is stored in by absorbing circuit 6 in capacitance C61, power cut-off after the work T time of absorbing circuit 6,
IGBT61 is turned off, and IGBT62 conductings, the electric energy being stored in capacitance C61 is discharged and consumed on resistance R62；Motor AC is conducted
During conversion is conducted to BC, A phases start to be not turned on, and MOS1 is converted by conducting state to absorbing circuit at the time of off state 1
It starts to work, IGBT11 conductings, IGBT12 is turned off, and the electric energy that A phase windings are generated by self inductance is stored in by absorbing circuit 1
In capacitance C11, power cut-off after the work T time of absorbing circuit 1, IGBT11 is turned off, and IGBT12 conductings are stored in capacitance C11
Electric energy discharge and consume on resistance R12；Motor BC is conducted to convert to BA and be conducted period, and C phases start to be not turned on, MOS2
It is converted to absorbing circuit at the time of off state 2 and is started to work by conducting state, IGBT21 conductings, IGBT22 shutdowns, B phase windings
The electric energy generated by self inductance is stored in by absorbing circuit 2 in capacitance C21, terminates work after the work T time of absorbing circuit 2
Make, IGBT21 shutdowns, IGBT22 conductings, the electric energy being stored in capacitance C21 is discharged and consumed on resistance R22；Motor BA phases
During conducting conversion is conducted to CA, B phases start to be not turned on, and MOS3 is converted electric to being absorbed at the time of off state by conducting state
Road 3 is started to work, IGBT31 conductings, IGBT32 shutdowns, and the electric energy that B phase windings are generated by self inductance is stored up by absorbing circuit 3
There are in capacitance C31, power cut-off after the work T time of absorbing circuit 3, IGBT31 is turned off, and IGBT32 conductings are stored in capacitance
Electric energy in C31 is discharged and is consumed on resistance R32；Motor CA is conducted to convert to CB and be conducted period, and A phases start not lead
Logical, MOS4 is converted to absorbing circuit at the time of off state 4 by conducting state and is started to work, IGBT41 conductings, IGBT42 shutdowns,
The electric energy that A phase windings are generated by self inductance is stored in by absorbing circuit 4 in capacitance C41, and absorbing circuit 4 works after T time
Power cut-off, IGBT41 shutdowns, IGBT42 conductings, the electric energy being stored in capacitance C41 are discharged and are consumed on resistance R42；Electricity
Machine CB is conducted to convert to AB and be conducted period, and C phases start to be not turned on, at the time of MOS5 is converted by conducting state to off state
Absorbing circuit 5 is started to work, and IGBT51 conductings, IGBT52 shutdowns, the electric energy that C phase windings are generated by self inductance is by absorbing electricity
Road 5 is stored in capacitance C51, power cut-off after the work T time of absorbing circuit 5, IGBT51 shutdowns, and IGBT52 conductings are stored in
Electric energy in capacitance C51 is discharged and is consumed on resistance R52.
When motor reversely rotates：Motor AB is conducted to convert to CB and be conducted period, and A phases start to be not turned on, and MOS1 is by leading
Logical state is converted to absorbing circuit at the time of off state 1 and is started to work, and IGBT11 conductings, IGBT12 shutdowns, A phase windings are by certainly
The electric energy that sense phenomenon generates is stored in by absorbing circuit 1 in capacitance C11, power cut-off after the work T time of absorbing circuit 1,
IGBT11 is turned off, and IGBT12 conductings, the electric energy being stored in capacitance C11 is discharged and consumed on resistance R12；Motor CB is conducted
During conversion is conducted to CA, B phases start to be not turned on, and MOS6 is converted by conducting state to absorbing circuit at the time of off state 6
It starts to work, IGBT61 conductings, IGBT62 is turned off, and the electric energy that B phase windings are generated by self inductance is stored in by absorbing circuit 6
In capacitance C61, power cut-off after the work T time of absorbing circuit 6, IGBT61 is turned off, and IGBT62 conductings are stored in capacitance C61
Electric energy discharge and consume on resistance R62；Motor CA is conducted to convert to BA and be conducted period, and C phases start to be not turned on, MOS5
It is converted to absorbing circuit at the time of off state 5 and is started to work by conducting state, IGBT51 conductings, IGBT52 shutdowns, C phase windings
The electric energy generated by self inductance is stored in by absorbing circuit 5 in capacitance C51, terminates work after the work T time of absorbing circuit 5
Make, IGBT51 shutdowns, IGBT52 conductings, the electric energy being stored in capacitance C51 is discharged and consumed on resistance R52；Motor BA phases
During conducting conversion is conducted to BC, A phases start to be not turned on, and MOS4 is converted electric to being absorbed at the time of off state by conducting state
Road 4 is started to work, IGBT41 conductings, IGBT42 shutdowns, and the electric energy that A phase windings are generated by self inductance is stored up by absorbing circuit 4
There are in capacitance C41, power cut-off after the work T time of absorbing circuit 4, IGBT41 is turned off, and IGBT42 conductings are stored in capacitance
Electric energy in C41 is discharged and is consumed on resistance R42；Motor BC is conducted to convert to AC and be conducted period, and B phases start not lead
Logical, MOS3 is converted to absorbing circuit at the time of off state 3 by conducting state and is started to work, IGBT31 conductings, IGBT32 shutdowns,
The electric energy that B phase windings are generated by self inductance is stored in by absorbing circuit 3 in capacitance C31, and absorbing circuit 3 works after T time
Power cut-off, IGBT31 shutdowns, IGBT32 conductings, the electric energy being stored in capacitance C31 are discharged and are consumed on resistance R32；Electricity
Machine AC is conducted to convert to AB and be conducted period, and C phases start to be not turned on, at the time of MOS2 is converted by conducting state to off state
Absorbing circuit 2 is started to work, and IGBT21 conductings, IGBT22 shutdowns, the electric energy that C phase windings are generated by self inductance is by absorbing electricity
Road 2 is stored in capacitance C21, power cut-off after the work T time of absorbing circuit 2, IGBT21 shutdowns, and IGBT22 conductings are stored in
Electric energy in capacitance C21 is discharged and is consumed on resistance R22.
Further, IGBT11, IGBT12, IGBT21, IGBT22, IGBT31, IGBT32, IGBT41, the IGBT42,
IGBT51, IGBT52, IGBT61 and IGBT62 are controlled by DSP.
Specifically, when the common I/O mouthfuls of output high level of DSP, IGBT11, IGBT12, IGBT21, the IGBT22,
IGBT31, IGBT32, IGBT41, IGBT42, IGBT51, IGBT52, IGBT61 and IGBT62 are connected, I/O mouthfuls of output low levels
When, IGBT11, IGBT12, IGBT21, IGBT22, IGBT31, IGBT32, IGBT41, IGBT42, IGBT51, the IGBT52,
IGBT61 and IGBT62 shutdowns.
It is enlightenment, through the above description, relevant staff with above-mentioned desirable embodiment according to the present invention
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which its technical scope is determined according to right.
Claims (6)
1. a kind of device inhibiting the impact of brshless DC motor commutation terminal voltage, it is characterised in that：Described device is by inverter, electricity
Machine threephase armature winding, 6 absorbing circuit compositions, wherein the inverter is formed by connecting by 3 pairs of metal-oxide-semiconductor bridge arms successively, described
The output of inverter is connected to motor threephase armature winding；Each metal-oxide-semiconductor both ends absorbing circuit in parallel.
2. inhibiting the device of brshless DC motor commutation terminal voltage impact as described in claim 1, it is characterised in that：The suction
Circuit is received to be made of 2 IGBT, 2 resistance and 1 capacitance, one of resistance and an IGBT are composed in series the first branch,
Capacitance is connected in parallel on the first branch both ends and constitutes a parallel circuit, another resistance is composed in series second with another IGBT
Road, the second branch are connected serially to the parallel circuit.
3. inhibiting the device of brshless DC motor commutation terminal voltage impact as claimed in claim 2, it is characterised in that：The electricity
It is polyester capacitance to hold.
4. inhibiting the device of brshless DC motor commutation terminal voltage impact as claimed in claim 3, it is characterised in that：The suction
Circuit is received for consuming the electric energy that machine winding is generated by self inductance.
5. inhibiting the suppressing method of brshless DC motor commutation terminal voltage percussion mechanism, feature as described in claim 2
It is, includes the following steps：
Step 1: when motor just starts, obtain the wherein any one phase of three-phase windings stop being conducted to the opposite potential zero passage when
Between be T；
Step 2: during motor commutation, the metal-oxide-semiconductor for controlling the phase winding being not turned on is converted to off state by conducting state
When, the absorbing circuit for being connected in parallel on the metal-oxide-semiconductor both ends is started to work；
Step 3: when absorbing circuit is started to work, the IGBT in the second branch is connected, and the IGBT in the first branch is closed
Disconnected, absorbing circuit is to capacitor charging；
Step 4: absorbing circuit power cut-off after start-up operation T time, the IGBT shutdowns in the second branch, described the
IGBT conductings in one branch, conductive discharge of the capacitance into the first branch；
It constantly repeats the above steps during motor commutation.
6. the method according to claim 5 for inhibiting the impact of brshless DC motor commutation terminal voltage, it is characterised in that：It is described
All IGBT are controlled by DSP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416226.8A CN108540024A (en) | 2018-05-03 | 2018-05-03 | A kind of device and method inhibiting the impact of brshless DC motor commutation terminal voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416226.8A CN108540024A (en) | 2018-05-03 | 2018-05-03 | A kind of device and method inhibiting the impact of brshless DC motor commutation terminal voltage |
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| Publication Number | Publication Date |
|---|---|
| CN108540024A true CN108540024A (en) | 2018-09-14 |
Family
ID=63475915
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810416226.8A Withdrawn CN108540024A (en) | 2018-05-03 | 2018-05-03 | A kind of device and method inhibiting the impact of brshless DC motor commutation terminal voltage |
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| CN (1) | CN108540024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817619A (en) * | 2020-07-23 | 2020-10-23 | 江苏芯亿达电子科技有限公司 | High-precision control system and method for permanent magnet synchronous motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070194346A1 (en) * | 2006-02-21 | 2007-08-23 | Takuo Nagase | Semiconductor device and inverter device using the same |
| CN202524283U (en) * | 2012-04-11 | 2012-11-07 | 中国矿业大学 | Buffer circuit structure of modular multi-level converter sub-module |
| CN102916637A (en) * | 2012-11-08 | 2013-02-06 | 沈阳创达技术交易市场有限公司 | Bridge type driving and resistor, capacitor and diode (RCD) buffering circuit of brushless direct current motor |
| CN103683260A (en) * | 2013-12-19 | 2014-03-26 | 天津正本自控系统有限公司 | IGBT (Insulated Gate Bipolar Transistor) series connection voltage equalizing circuit |
| CN104205592A (en) * | 2012-03-19 | 2014-12-10 | 西门子公司 | DC/DC converter |
| CN204425219U (en) * | 2015-02-06 | 2015-06-24 | 廖天龙 | A kind of motor for bill counter dragging system |
-
2018
- 2018-05-03 CN CN201810416226.8A patent/CN108540024A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070194346A1 (en) * | 2006-02-21 | 2007-08-23 | Takuo Nagase | Semiconductor device and inverter device using the same |
| CN104205592A (en) * | 2012-03-19 | 2014-12-10 | 西门子公司 | DC/DC converter |
| CN202524283U (en) * | 2012-04-11 | 2012-11-07 | 中国矿业大学 | Buffer circuit structure of modular multi-level converter sub-module |
| CN102916637A (en) * | 2012-11-08 | 2013-02-06 | 沈阳创达技术交易市场有限公司 | Bridge type driving and resistor, capacitor and diode (RCD) buffering circuit of brushless direct current motor |
| CN103683260A (en) * | 2013-12-19 | 2014-03-26 | 天津正本自控系统有限公司 | IGBT (Insulated Gate Bipolar Transistor) series connection voltage equalizing circuit |
| CN204425219U (en) * | 2015-02-06 | 2015-06-24 | 廖天龙 | A kind of motor for bill counter dragging system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817619A (en) * | 2020-07-23 | 2020-10-23 | 江苏芯亿达电子科技有限公司 | High-precision control system and method for permanent magnet synchronous motor |
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Application publication date: 20180914 |
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