CN106936347B - Direct current motor control - Google Patents
Direct current motor control Download PDFInfo
- Publication number
- CN106936347B CN106936347B CN201511018990.2A CN201511018990A CN106936347B CN 106936347 B CN106936347 B CN 106936347B CN 201511018990 A CN201511018990 A CN 201511018990A CN 106936347 B CN106936347 B CN 106936347B
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- China
- Prior art keywords
- electrically connected
- motor
- switch module
- direct current
- switch
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Classifications
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- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
A kind of direct current motor control, suitable for being electrically connected between a DC power supply and a d.c. motor, include a first switch module, a second switch module, an Inductive component, a storage assembly, a first valve control component and a second valve control component.It is designed by the direct current motor control; the current ripple and electromagnetic interference for flowing through d.c. motor are effectively reduced using the storage assembly; it be easier locked rotor current can and be more accurately detected; and it is easy to carry out locked rotor current protection; and accumulation of energy can be electrically charged during the second switch module disconnects using storage assembly; and it can discharge during second switch module closure and the design of electric energy is provided; and there is preferable energy efficiency; the shortcomings that existing DC motor controlling circuit can be effectively improved is a kind of direct current motor control design of innovation.
Description
Technical field
The present invention relates to a kind of control devices, more particularly to a kind of direct current motor control.
Background technique
As shown in Figure 1, the design of general DC motor controlling circuit 100, have no it is inverse connect design protection, once user is wrong
Accidentally against when connecing DC power supply 200, it will lead to high current and flow through diode 101, and switch 102 and diode 101 is caused to damage.And
The DC motor controlling circuit 100 design, will cause flow through motor 103 current amplitude variation it is excessive, it is higher in addition to will cause
EMI radiation interference is outer, and input current ripple is also larger, and can not accurately detect judgement locked rotor current, easily causes erroneous judgement and causes
D.c. motor 103 is damaged.Therefore, current DC motor controlling circuit 100 still has the space of improvement.
Summary of the invention
The purpose of the present invention is to provide a kind of with the inverse d.c. motor control for connecing protection and being easy to detect locked rotor current
Device.
Direct current motor control of the present invention, suitable for being electrically connected between a DC power supply and a d.c. motor, and
Include: a first switch module, a second switch module, an Inductive component, a storage assembly, a first valve control
Component and a second valve control component.The first switch module be electrically connected to one end the d.c. motor anode and this
Between one input terminal, and the positive electrode and negative electrode of the DC power supply can be electrically connected with second input terminal in the first input end
When be triggered closure, the cathode and anode of the DC power supply can be electrically connected in the first input end and second input terminal
When be triggered disconnection.The second switch module is series between the d.c. motor cathode and second input terminal, and can be by arteries and veins
Width modulation signal control closure and disconnection.The Inductive component is the other end that the first switch module is electrically connected to one end.
The storage assembly is the other end that the Inductive component is electrically connected to one end, and is electrically connected to second input with its other end
End.The first valve control component is that the d.c. motor cathode and the second switch intermodule are electrically connected to one end, and another with it
Outer one end is electrically connected between the Inductive component and the storage assembly, and can connect the DC power supply just in the first input end
When pole and second switch module closure, be triggered the one-way conduction d.c. motor cathode and the storage assembly.The second valve control
Component be with the second switch wired in parallel, and can be triggered when second input terminal connects the anode of the DC power supply
One-way conduction second input terminal and the d.c. motor.
Direct current motor control of the present invention, the first valve control component are diode, are with its anode electrical connection
In the d.c. motor cathode and the second switch intermodule, and the Inductive component and the storage assembly are electrically connected to its cathode
Between.
Direct current motor control of the present invention, the second valve control component are diode, are with the electrical connection of its cathode
In the second switch module and the first valve control inter-module, and second input terminal is electrically connected to its anode.
Direct current motor control of the present invention, the first switch module and the second switch module are respectively crystal
Pipe switch.
The beneficial effects of the present invention are: by the circuit design of the direct current motor control, it can effectively reduce and flow through
The current ripple and electromagnetic interference of the d.c. motor be easier the locked rotor current can and be more accurately detected, and can
Energy efficiency is improved, is a kind of direct current motor control design of innovation.
Detailed description of the invention
Other features of the invention and effect will be clearly presented in the embodiment referring to schema, in which:
Fig. 1 is existing DC motor controlling circuit；
Fig. 2 is the circuit diagram of an embodiment of direct current motor control of the present invention, illustrates that the embodiment is installed on one
The aspect of DC power supply and a d.c. motor；
Fig. 3 is the view of similar Fig. 2, and a schematically illustrate first switch module is driven with a second switch module closes
Current loop when conjunction；
Fig. 4 is the view of similar Fig. 2, and the schematically illustrate first switch module is closed by driving, and the second switch module
Current loop when being disconnected by driving；And
Fig. 5 is the view of similar Fig. 2, the current loop that the schematically illustrate embodiment is inverse when connecing DC power supply.
Specific embodiment
Refering to Fig. 2 and Fig. 3, the embodiment of direct current motor control of the present invention, suitable for being electrically connected to a direct current
Between source 700 and a d.c. motor 800, and it is electrically connected to a revolving speed for controlling 800 revolving speed of d.c. motor and controls dress
Set (not shown).
The direct current motor control includes an inductance of first switch module 32, one of power input unit 31, one
The the first valve control component 36 of the second switch module 35, one of storage assembly 34, one of component 33, one and a second valve control group
Part 37.The power input unit 31 is that have a first input end 311 and one for being electrically connected to the DC power supply 700
Second input terminal 312.
The first switch module 32, the Inductive component 33 and the storage assembly 34 be series at the first input end 311 with
Between second input terminal 312.The first switch module 32 is that the first input end 311 and the direct current horse are electrically connected to one end
Up to 800 positive interpolar, the anode of the DC power supply 700 can be connected respectively with second input terminal 312 in the first input end 311
When with cathode, that is, when just connecing the DC power supply 700, the closure that is triggered (ON), and in the first input end 311 and this second
When input terminal 312 connects the cathode and anode of the DC power supply 700 respectively, that is, against when connecing the DC power supply 700, it is triggered
It disconnects (OFF).
In the present embodiment, which is transistor switch, such as MOSFET (Metal-Oxide-
Semiconductor Field-Effect Transistor)、IGBT(Insulated Gate Bipolar
Transistor), GTO (Gate Turn-Off thyristor) or BJT (bipolar junction transistor) etc.,
But it is not limited in the above type when implementing.
The second switch module 35 is the power module of an acceptable high-frequency signals, is to be series at the d.c. motor 800
Cathode and second input terminal 312 between, and be electrically connected, can be exported by the revolution speed control device with the revolution speed control device
The control of PWM (Pulse Width Modulation, Pulse Width Modulation) signal, can be in the duty cycle of the pulse width modulation signal
Be triggered closure during (duty cycle), so in closed state and can alternately and repeatedly be disconnected according to the pulse width modulation signal
Switch between state, and then the operating voltage when modulation d.c. motor 800 is operated by driving, and opposite modulation d.c. motor
800 revolving speed.In the present embodiment, which is equally made of transistor switch, such as above-mentioned MOSFET,
IGBT, GTO or BJT etc., but be not limited in the above type when implementation.
The first valve control component 36 is the cathode and the second switch module that the d.c. motor 800 is electrically connected to one end
Between 35, and it is electrically connected between the Inductive component 33 and the storage assembly 34 with its other end.In the present embodiment, the first valve control
Component 36 be diode, be and its anode be electrically connected to the d.c. motor 800 the negative pole end and the second switch module 35
Between, and be electrically connected between the Inductive component 33 and the storage assembly 34 with its cathode, this can be just connect in the power input unit 31
DC power supply 700, and when the second switch module 35 disconnection, by driving one-way conduction 800 cathode of d.c. motor and the electric power storage
Component 34, but when implementation, which is not limited.
The second valve control component 37 be it is in parallel with the second switch module 35, in the present embodiment, the second valve control component
37 be diode, can be in the power input unit 31 against when connecing the DC power supply 700, and be triggered one-way conduction second input terminal
312 with 800 cathode of d.c. motor.But when implementing, which is not limited.
Refering to Fig. 3 and Fig. 4, direct current motor control of the present invention is in use, can connect 35 signal of second switch module
It is connected to the revolution speed control device, and is usually that the power input unit 31 is just being connected to the DC power supply 700.When the power input
When unit 31 is just being connected to the DC power supply 700, which can be triggered closure (ON) immediately, at this point, this second
Switch module 35 can receive the control of the pulse width modulation signal of revolution speed control device output, and in closed state and disconnect repeatedly
Switch between state, and the time for being in closed state can be changed with the duty cycle size of the pulse width modulation signal, sets whereby
Meter, the operating voltage size when d.c. motor 800 can control to be operated by driving, the operating voltage size can be equal to the direct current
Source 700 multiplied by the pulse width modulation signal duty cycle.It is due to regulating and controlling 800 revolving speed of d.c. motor using pulse width modulation signal
The prior art, therefore be no longer described in detail.
During second switch module 35 is closed, that is, phase duty cycle of the high level in the pulse width modulation signal
Between, which can be operated by driving, and can change revolving speed with the duty cycle size.
When the second switch module 35 disconnects, that is, between the low period of the pulse width modulation signal, first valve
Control component 36 can be triggered the one-way conduction d.c. motor 800 and the storage assembly 34, which can be transformed into power generation
Machine aspect, generate counter electromotive force can start to charge to the storage assembly 34, current loop as illustrated with arrow 301, when
The counter electromotive force of the d.c. motor 800 can not charge to the storage assembly 34, and 700 voltage of DC power supply is greater than the electric power storage group
When 34 voltage of part, which also can be via the first switch module 32 and the Inductive component 33 and to the storage assembly
34 charge, and current loop is as illustrated with arrow 302.
When the second switch module 35 switches to closed state by pulse width modulation signal triggering again, in addition to the direct current
Power supply 700 be used in provide the d.c. motor 800 operate outside required electric energy, current loop as illustrated with arrow 303, the electric power storage group
Part 34 can also discharge via the Inductive component 33 and the first switch module 32 to provide part electric energy, current loop such as arrow
Shown in 304, so the DC power supply 700 is not required to provide whole electric energy required when the d.c. motor 800 running, so that entire straight
Stream controller for motor can have preferable efficiency of energy utilization.
Further, since the electric energy that the DC power supply 700 provides can change by the electric power storage when second switch module 35 disconnects
Component 34 charges, so the electric current for flowing through the d.c. motor 700 will be slow decline, will not rapid drawdown, can effectively reduce and flow through
The ripple of the electric current of the d.c. motor 800, and electromagnetic interference (Electro Magnetic can be reduced relatively
Interference), it can be easier and more accurately detect the locked rotor current for judging the d.c. motor 800.
Refering to Fig. 5, when user's mistake is inverse connects the DC power supply 700, the first switch module 32 and the second switch
Module 35 can be triggered disconnection immediately, and the second valve control component 37 can be triggered one-way conduction second input terminal 312 with should
D.c. motor 800, flows a current through the d.c. motor 800, current loop as illustrated with arrow 305, to drive d.c. motor 800 inverse
Turn.Therefore, when the direct current motor control is inverse connects the DC power supply 700, avoidable high current flows through the first switch mould
Block 32 and the second switch module 35, and the case where cause component to damage.
In conclusion passing through the circuit design of the direct current motor control, it is effectively reduced using the storage assembly 34
The ripple and electromagnetic interference for flowing through the electric current of the d.c. motor 800, make the locked rotor current can be easier and more accurately by
Detecting, and it is easy to carry out locked rotor current protection, and using the storage assembly 34 meeting during the second switch module 35 disconnects
It is electrically charged accumulation of energy, and can discharge during the second switch module 35 closure and the design of electric energy is provided, so that the DC power supply 700
It is not required to provide whole electric energy for driving the d.c. motor 800, and the energy effect of entire direct current motor control can be improved
Rate, the shortcomings that being effectively improved existing 800 control circuit of d.c. motor are a kind of direct current motor control designs of innovation,
So the purpose of the present invention can be reached really.
As described above, is only the embodiment of the present invention, when cannot be limited the scope of implementation of the present invention with this, i.e., all
According to simple equivalent changes and modifications made by claims of the present invention and description, all still belong to the scope of the present invention.
Claims (4)
1. a kind of direct current motor control, suitable for being electrically connected between a DC power supply and a d.c. motor, feature
Be: the direct current motor control includes a power input unit, a first switch module, a second switch mould
Block, an Inductive component, a storage assembly, a first valve control component and a second valve control component, the power input list
Member has the first input end and second input terminal for being respectively used to be electrically connected to the DC power supply；The first switch mould
Block is between being electrically connected to d.c. motor anode with one end the first input end, and can in the first input end and this
Two input terminals are triggered closure when being electrically connected the positive electrode and negative electrode of the DC power supply, can in the first input end and this
Two input terminals are triggered disconnection when being electrically connected the cathode and anode of the DC power supply；The second switch module is to be series at this
Between d.c. motor cathode and second input terminal, and closure can be controlled by pulse width modulation signal and is disconnected；The Inductive component is
The other end of the first switch module is electrically connected to one end；The storage assembly is that the Inductive component is electrically connected to one end
The other end, and second input terminal is electrically connected to its other end；The first valve control component is to be electrically connected to this with one end
D.c. motor cathode and the second switch intermodule, and the Inductive component and the storage assembly are electrically connected to its other end
Between, and can be triggered unidirectional when the first input end connects the anode of the DC power supply and the second switch module disconnects
The d.c. motor cathode and the storage assembly is connected；The second valve control component be with the second switch wired in parallel, and can be in
When second input terminal connects the anode of the DC power supply, be triggered one-way conduction second input terminal and the d.c. motor.
2. direct current motor control according to claim 1, it is characterised in that: the first valve control component is diode,
It is the d.c. motor cathode and the second switch intermodule to be electrically connected to its anode, and the inductance group is electrically connected to its cathode
Between part and the storage assembly.
3. direct current motor control according to claim 1, it is characterised in that: the second valve control component is diode,
It is the second switch module and the first valve control inter-module to be electrically connected to its cathode, and it is second defeated to be electrically connected to this with its anode
Enter end.
4. direct current motor control according to claim 1, it is characterised in that: the first switch module second is opened with this
Closing module is respectively transistor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018990.2A CN106936347B (en) | 2015-12-30 | 2015-12-30 | Direct current motor control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018990.2A CN106936347B (en) | 2015-12-30 | 2015-12-30 | Direct current motor control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106936347A CN106936347A (en) | 2017-07-07 |
| CN106936347B true CN106936347B (en) | 2019-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511018990.2A Active CN106936347B (en) | 2015-12-30 | 2015-12-30 | Direct current motor control |
Country Status (1)
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| CN (1) | CN106936347B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE413719T1 (en) * | 2004-06-14 | 2008-11-15 | Ebm Papst St Georgen Gmbh & Co | ELECTRONICALLY COMMUTATED DC MOTOR WITH A PROTECTIVE CIRCUIT ARRANGE IN ITS SUPPLY CABLE |
| CN101719754A (en) * | 2009-12-11 | 2010-06-02 | 深圳和而泰智能控制股份有限公司 | Low voltage DC motor control method and device |
| CN101931366B (en) * | 2010-08-03 | 2012-04-25 | 浙江大学 | Super capacitor-based energy-saving drive circuit of motor and control method |
| CN103107755A (en) * | 2013-02-20 | 2013-05-15 | 刘德志 | Pulse-width modulation (PWM) type speed changing device of direct-current (DC) motor |
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2015
- 2015-12-30 CN CN201511018990.2A patent/CN106936347B/en active Active
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| Publication number | Publication date |
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| CN106936347A (en) | 2017-07-07 |
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