CN110176883A - Direct current motor control circuit - Google Patents
Direct current motor control circuit Download PDFInfo
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- CN110176883A CN110176883A CN201910480617.0A CN201910480617A CN110176883A CN 110176883 A CN110176883 A CN 110176883A CN 201910480617 A CN201910480617 A CN 201910480617A CN 110176883 A CN110176883 A CN 110176883A
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- 238000002955 isolation Methods 0.000 claims abstract description 33
- 230000005611 electricity Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- H02P7/285—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 controlling armature supply only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The invention provides a direct current motor control circuit, which comprises an IC (integrated circuit) main control module, an isolation module, a motor power supply control module and a power supply module, wherein the IC main control module is connected with the motor control module through the isolation module; the power supply module is used for respectively converting alternating current commercial power into a motor power supply of the direct current motor and a power supply of the IC main control module, the isolation module and the motor power supply control module and supplying power to the modules; the IC main control module generates a corresponding control signal according to the running mode of the whole machine; the isolation module transmits the control signal to the motor power supply control module to realize the electrical isolation between the IC main control module and the motor power supply control module; and the motor power supply control module controls the on or off of a power supply circuit of the direct current motor. The invention simplifies the circuit structure of the control circuit, occupies small space, realizes the independent control of the power supply of the motor under the condition that the motor does not need to work, reduces the power consumption of the motor control part during standby and improves the energy efficiency.
Description
Technical field
The present invention relates to motor control technology field more particularly to a kind of DC motor control circuits.
Background technique
Brshless DC motor is because its high efficiency, low noise have been widely used in every field, and household appliances are to straight
The use of galvanic electricity machine is also more more and more universal, but as efficiency requirement is higher and higher, reducing standby power is that developer considers
Major issue.
In realizing process of the present invention, inventor find existing BLDC control method for brushless direct current motor at least have with
Lower defect:
In the prior art, in order to reduce the stand-by power consumption of the DC MOTOR CONTROL part in household electrical appliances, best bet is exactly
The part is not allowed to have electric energy loss under ideal case.Because the datum mark of DC MOTOR CONTROL part need to keep one with 310V voltage
It causes, causes entire DC MOTOR CONTROL part and complete machine control section cannot altogether, traditional method of controlling is by direct current generator
Power pack is distinguished with complete machine controller power pack, i.e., does two power supplys in the same complete machine to control, complete machine master control
The power supply of direct current generator part is controlled by control relay on-off.But due to small in size in household appliances, installation control
The space of device is limited by high degree, and product cost is caused to improve.
Summary of the invention
The embodiment of the present invention proposes a kind of DC motor control circuit, to solve DC MOTOR CONTROL electricity in the prior art
The problem that road power consumption is excessive and installation controller occupied space is excessive.
DC motor control circuit provided in an embodiment of the present invention, including IC main control module, isolation module, motor power control
Molding block and power supply module, the IC main control module are connect by the isolation module with the motor control module；
The power supply module, for electric main to be separately converted to the motor power and the IC master control mould of direct current generator
The power supply of block, isolation module and motor power control module, and for direct current generator, IC main control module, isolation module and
The power supply of motor power control module；
The IC main control module, for generating corresponding control signal according to the operational mode of complete machine；
The isolation module, for the control signal to be transferred to the motor power control module, and described in realization
Electric appliance between IC main control module and the motor power control module is isolated；
The motor power control module, for controlling the power supply circuit of the direct current generator according to the control signal
On or off.
Wherein, the isolation module includes photoelectrical coupler；
The first input end of the photoelectrical coupler is connect with the control output end of IC control module, the photoelectrical coupler
The second input terminal connect with the first power supply；First output end of the photoelectrical coupler and the motor power control module
Control terminal connection, the second output terminal ground connection of the photoelectrical coupler, when the control signal is low level, the photoelectricity coupling
Clutch conducting, is transferred to the motor power control module for the control signal.
Wherein, the DC motor control circuit further includes first resistor；
One end of the first resistor is connect with the second input terminal of the photoelectrical coupler, the other end and first electricity
Source connection.
Wherein, the motor power control module includes switching circuit and power control circuit, the power control circuit
It is connected between the direct current generator and motor power, the on or off of the power supply circuit for controlling the direct current generator,
The control terminal of the switching circuit is connect with the first output end of the isolation module, the input terminal of the switching circuit and second
Power supply connection, the output end of the switching circuit and the control terminal of power control circuit connect, for controlling the power supply control
The input of the control voltage of circuit.
Wherein, the switching circuit is realized using triode, and the power control circuit is realized using relay；
The emitter of the triode is connect with the second source, and the first output end of base stage and the isolation module connects
It connects, collector is connect with the control terminal of the relay, and two contacts of the output circuit of the relay connect the direct current
Motor and motor power, when the triode ON, two contact closures, the power supply circuit of the direct current generator is connected, when
The triode cut-off, when two contacts disconnect, the power supply circuit shutdown of the direct current generator.
Wherein, the DC motor control circuit further includes second resistance；
One end of the second resistance is connect with the first output end of the isolation module, the other end and the triode
Base stage connection.
Wherein, the DC motor control circuit further includes voltage regulator circuit；
The input terminal of the voltage regulator circuit is connect with the output end of the switching circuit, the output end of the voltage regulator circuit with
The control terminal of the power control circuit connects.
Wherein, the voltage regulator circuit is realized using 3rd resistor or regulator block.
Wherein, the switching circuit further includes the 4th resistance；
The both ends of 4th resistance are separately connected the base stage and collector of the triode.
Wherein, the power supply module includes rectification circuit and Switching Power Supply；
The input terminal of the rectification circuit is connect with electric main output end, the output end of the rectification circuit with it is to be powered
Direct current generator input terminal connected with the Switching Power Supply, the rectification circuit converts the electric main to described to be powered
Direct current generator needed for voltage motor power, the output voltage after rectification is converted to and specified with first by the Switching Power Supply
First power supply of voltage and second source with the second given voltage.
DC motor control circuit provided in an embodiment of the present invention, at least has the advantages that
(1) IC main control module and motor power control module are isolated by optical coupling module, solve two-way power supply and does not ask altogether
Topic；
(2) circuit structure for simplifying circuit for controlling motor, solve in the prior art by direct current generator power supply circuit with
Controller occupied space excessive problem when complete machine controller power supply subregion is arranged, reduces control circuit cost；
(3) reduce circuit for controlling motor it is standby when power consumption, improve efficiency.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of structural block diagram of DC motor control circuit provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of DC motor control circuit provided in an embodiment of the present invention；
Fig. 3 be another embodiment of the present invention provides DC motor control circuit circuit diagram；
Fig. 4 be another embodiment of the present invention provides a kind of DC motor control circuit structural block diagram；
Fig. 5 is the circuit diagram of voltage detecting circuit in DC motor control circuit provided in an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless otherwise will not be explained in an idealized or overly formal meaning by specific definitions.
Fig. 1 is a kind of structural block diagram of DC motor control circuit provided in an embodiment of the present invention.As shown in Figure 1, this hair
The DC motor control circuit that bright embodiment provides, including IC main control module 101, isolation module 102, motor power control module
103 and power supply module 104, the IC main control module 101 is connected by the isolation module 102 with the motor control module 103
It connects, in which:
The power supply module 104, for electric main is separately converted to direct current generator motor power and the IC master
The power supply of module 101, isolation module 102 and motor power control module 103 is controlled, and is direct current generator, IC master control mould
Block 101, isolation module 102 and motor power control module 103；
The IC main control module 101, for generating corresponding control signal according to the operational mode of complete machine, when the fortune of complete machine
Row mode is operating status, and the control signal is low level, when the operational mode of complete machine is standby mode, the control signal
For high level；
The isolation module 102, for the control signal to be transferred to the motor power control module 103, and it is real
The existing IC main control module 101 is isolated with the electric appliance between the motor power control module 103；
The motor power control module 103, for controlling the power supply electricity of the direct current generator according to the control signal
The on or off on road, when control signal is low level, isolation module 102 is connected, and the low level is transferred to the motor
Energy supply control module 103, motor power control module 103 controls the power supply circuit conducting of the direct current generator, when control signal
For high level, isolation module 102 ends, and control signal can not be transferred to the motor power control module 103, motor power control
Molding block 103 controls the power supply circuit shutdown of the direct current generator.
DC motor control circuit provided in an embodiment of the present invention, by optical coupling module 102 be isolated IC main control module 101 with
Motor power control module 103 solves the problems, such as two-way power supply not altogether.By relay by vulnerabilities scan forceful electric power on/off,
In the case where motor does not need work, realize motor power supply independent control, reduce motor control part it is standby when function
Consumption improves efficiency.Moreover, circuit structure of the present invention is simple, occupy little space, reduces control circuit cost of implementation.
Fig. 2 is the circuit diagram of DC motor control circuit provided in an embodiment of the present invention.As shown in Fig. 2, of the invention
In the DC motor control circuit that embodiment provides, the IC main control module 101 can be realized using MCU micro-control unit U2；
The isolation module 102 is realized using photoelectrical coupler U1.The feeder ear of MCU micro-control unit is connect with the first power supply, wherein
First power supply is the power supply that output voltage is 5V, the control output end of the MCU micro-control unit U2 and the photoelectrical coupler
The first input end of U1 connects, and the second input terminal of the photoelectrical coupler U1 is connect with the first power supply, photoelectrical coupler U1's
First output end is connect with the control terminal of the motor power control module 103, and the second output terminal of the photoelectrical coupler connects
Ground, when the control signal is low level, the control signal is transferred to the motor electricity by the photoelectrical coupler conducting
Source control module.
Further, the DC motor control circuit further includes first resistor R2, one end of first resistor R2 with it is described
The second input terminal of photoelectrical coupler U1 connects, and the other end of first resistor R2 is connect with the first power supply.
In the embodiment of the present invention, MCU micro-control unit U2 is exported according to complete machine operational mode to the photoelectrical coupler U1
Corresponding control signal；When complete machine operational mode is in operating status, the MCU micro-control unit U2 is to the photoelectrical coupler
U1 exports low level, at this time photoelectrical coupler U1 ON operation, and photoelectrical coupler U1 output end exports low level；When complete machine is run
When mode is in standby, the MCU micro-control unit U2 exports high level, the photoelectricity coupling to the photoelectrical coupler U1
Clutch U1 cut-off.
In embodiments of the present invention, the motor power control module 103 includes switching circuit and power control circuit, institute
It states power control circuit to be connected between the direct current generator and motor power, for controlling the power supply circuit of the direct current generator
On or off, the control terminal of the switching circuit connect with the first output end of the isolation module, the switching circuit
Input terminal connect with second source, the control terminal of the output end of the switching circuit and power control circuit connects, for controlling
Make the input of the control voltage of the power control circuit.
Further, DC motor control circuit further includes second resistance R3, one end of the second resistance R3 with it is described
First output end of isolation module connects, and the other end is connect with the base stage of the triode Q1.
In the embodiment of the present invention, as current-limiting resistance, resistance value selection is necessary to ensure that by first resistor R2 and second resistance R3
The saturation conduction of photoelectrical coupler U1 and triode Q1.
Further, in order to ensure the stabilization of the control voltage of power control circuit, direct current generator control provided by the invention
Circuit processed further includes voltage regulator circuit, and the input terminal of the voltage regulator circuit is connect with the output end of the switching circuit, the pressure stabilizing
The output end of circuit is connect with the control terminal of the power control circuit.
In a specific embodiment, as shown in Fig. 2, the switching circuit is realized using triode Q1, the power supply control
Circuit processed is realized using electromagnetic relay K1.Specifically, the emitter of the triode Q1 is connect with second source, wherein the
Two power supplys are the power supply that output voltage is 15V, and the base stage of triode Q1 passes through the second resistance R3's and photoelectrical coupler U1
The connection of first output end, collector are connect by voltage regulator circuit with the electromagnetic relay K1 control terminal.In the present embodiment, pressure stabilizing
Circuit realizes voltage stabilizing function using the partial pressure of 3rd resistor R1；Power control circuit uses the output circuit control of electromagnetic relay K1
The power supply circuit of direct current generator processed.
It should be noted that needing the power and fever in view of 3rd resistor R1 in practical applications, multiple electricity may be selected
It hinders serial or parallel connection and realizes voltage divide function.
In the embodiment of the present invention, switching circuit further includes the 4th resistance R4, can be by the 4th resistance R4 and the triode Q1
Collector is connect with base stage, to prevent the triode Q1 from misleading.Wherein, the resistance value of the 4th resistance R4 can be according to the actual situation
It is adjusted.
When complete machine needs to run, MCU exports low level to U1, at this time U1 optocoupler ON operation, the triode Q1's
Base stage input low level, the triode Q1 ON operation, the rear end R1 divider resistance front voltage 15V, R1 need to mention for relay
For 12V voltage, R1 divides 3V, when the electromagnetic relay K1 control terminal inputs 12V level, the electromagnetic relay K1 output electricity
Two contact closures on road, the power supply circuit conducting of direct current generator, direct current generator enter operating mode.
When complete machine is out of service or user does not need complete machine work, MCU exports high level to U1, and U1 optocoupler is cut at this time
Only, Q1 ends, and late-class circuit can not obtain 15V voltage, and two contacts of electromagnetic relay K1 output circuit are in an off state,
The power supply circuit of direct current generator turns off, and entire BLDC motor can not work because of unpowered power supply.
Fig. 3 be another embodiment of the present invention provides DC motor control circuit circuit diagram.As shown in figure 3, this
In embodiment, voltage stabilizing function is realized using regulator block U3 substitution second resistance R3, it is ensured that regulator block rear end, which exports, stablizes 12V electricity
Pressure.
In the present embodiment, when complete machine needs to run, MCU exports low level to U1, and U1 optocoupler ON operation, described at this time
The base stage input low level of triode Q1, the triode Q1 ON operation, after U3 regulator block front voltage 15V, U3 regulator block
End, which exports, stablizes 12V voltage, when electromagnetic relay K1 control terminal inputs 12V level, two of electromagnetic relay K1 output circuit
Contact closure, the power supply circuit conducting of direct current generator, direct current generator enter operating mode.
When complete machine is out of service or user does not need complete machine work, MCU exports high level to U1, and U1 optocoupler is cut at this time
Only, Q1 ends, and late-class circuit can not obtain 15V voltage, and U3 regulator block cannot get the input voltage that can be worked normally, can not be defeated
Two contacts of 12V voltage out, electromagnetic relay K1 output circuit are in an off state, the power supply circuit shutdown of direct current generator,
Entire BLDC motor can not work because of unpowered power supply.
This invention simplifies the circuit structure of control circuit, solves the problems, such as that controller occupied space is excessive, reduce
Control circuit cost；Moreover, can individually cut off the power supply of control power supply in the case where motor does not need work, motor is realized
The independent control of power supply, reduce motor control part it is standby when power consumption, improve efficiency.
Fig. 4 be another embodiment of the present invention provides a kind of DC motor control circuit structural block diagram.As shown in figure 4,
Power supply module 104 described in DC motor control circuit described in the present embodiment includes rectification circuit 1041 and Switching Power Supply
1042；
The input terminal of the rectification circuit 1041 is connect with 220V electric main output end, the rectification circuit 1041 it is defeated
Outlet is connect with direct current generator input terminal to be powered and the Switching Power Supply 1042, and the rectification circuit 1041 exchanges 220V
310V direct current needed for city is converted into direct current generator to be powered, the Switching Power Supply 1042 are straight by the 310V exported after rectification
Galvanic electricity is converted to the first power supply with the first given voltage and the second source with the second given voltage.Specifically, first
Given voltage is the supply voltage of the IC main control module 101 in DC motor control circuit, specially 5V；Second given voltage is
The supply voltage of motor control module 103 in DC motor control circuit, specially 15V.
It should be noted that the value of first given voltage and the second given voltage can be according to the actual power of circuit
Demand is chosen, and the embodiment of the present invention does not limit it specifically.
In a specific embodiment, in the power supply module 104 further include output end with the rectification circuit 1042
The voltage detecting circuit of connection.As shown in figure 5, the voltage detecting circuit includes resistance R5, R6, R7, R8 and R9, wherein electricity
After hindering R5, R6, R7, R8 series connection, one end of R8 is connect with the output end of the rectification circuit, the other end ground connection of R5, and the one of R9
Between end connection resistance R5, R6, output end of the other end as voltage detecting circuit.
In practical applications, operating current is 60mA in 15V power circuit, and calculating power is 0.9W；
Current detection section loss power is according to selecting the different loss power sizes of current-limiting resistance resistance value also different, to scheme
For voltage detecting circuit shown in 5, wherein assuming that the resistance value of resistance R6, R7, R8 are 150K, resistance is connected, herein three current limlitings
Resistance power loss 0.2W.
As it can be seen that control dump can directly be reduced stand-by power consumption to 1.1W in the case where motor does not need work.
In specification of the invention, numerous specific details are set forth.It is to be appreciated, however, that the embodiment of the present invention can be with
It practices without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this specification.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of DC motor control circuit, which is characterized in that control mould including IC main control module, isolation module, motor power
Block and power supply module, the IC main control module are connect by the isolation module with the motor control module；
The power supply module, for electric main is separately converted to direct current generator motor power and the IC main control module,
The power supply of isolation module and motor power control module, and be direct current generator, IC main control module, isolation module and motor
Energy supply control module power supply；
The IC main control module, for generating corresponding control signal according to the operational mode of complete machine；
The isolation module for the control signal to be transferred to the motor power control module, and realizes the IC master
Control module is isolated with the electric appliance between the motor power control module；
The motor power control module, the conducting of the power supply circuit for controlling the direct current generator according to the control signal
Or shutdown.
2. DC motor control circuit as described in claim 1, which is characterized in that the isolation module includes photoelectric coupling
Device；
The first input end of the photoelectrical coupler is connect with the control output end of IC control module, and the of the photoelectrical coupler
Two input terminals are connect with the first power supply；The control of first output end of the photoelectrical coupler and the motor power control module
End connection, the second output terminal ground connection of the photoelectrical coupler, when the control signal is low level, the photoelectrical coupler
Conducting, is transferred to the motor power control module for the control signal.
3. DC motor control circuit as claimed in claim 2, which is characterized in that the DC motor control circuit further includes
First resistor；
One end of the first resistor is connect with the second input terminal of the photoelectrical coupler, and the other end and first power supply connect
It connects.
4. DC motor control circuit as claimed in claim 2, which is characterized in that the motor power control module includes opening
Powered-down road and power control circuit, the power control circuit is connected between the direct current generator and motor power, for controlling
Make the on or off of the power supply circuit of the direct current generator, the control terminal of the switching circuit and the first of the isolation module
Output end connection, the input terminal of the switching circuit are connect with second source, and the output end and power supply of the switching circuit control
The control terminal of circuit connects, the input of the control voltage for controlling the power control circuit.
5. DC motor control circuit as claimed in claim 4, which is characterized in that the switching circuit is real using triode
Existing, the power control circuit is realized using relay；
The emitter of the triode is connect with the second source, and base stage is connect with the first output end of the isolation module,
Collector is connect with the control terminal of the relay, and two contacts of the output circuit of the relay connect the direct current generator
With motor power, when the triode ON, two contact closures, the power supply circuit of the direct current generator is connected, when described
Triode cut-off, when two contacts disconnect, the power supply circuit shutdown of the direct current generator.
6. DC motor control circuit as claimed in claim 5, which is characterized in that the DC motor control circuit further includes
Second resistance；
One end of the second resistance is connect with the first output end of the isolation module, the base stage of the other end and the triode
Connection.
7. DC motor control circuit as claimed in claim 4, which is characterized in that the DC motor control circuit further includes
Voltage regulator circuit；
The input terminal of the voltage regulator circuit is connect with the output end of the switching circuit, the output end of the voltage regulator circuit with it is described
The control terminal of power control circuit connects.
8. DC motor control circuit as claimed in claim 7, which is characterized in that the voltage regulator circuit using 3rd resistor or
Regulator block is realized.
9. DC motor control circuit as claimed in claim 4, which is characterized in that the switching circuit further includes the 4th electricity
Resistance；
The both ends of 4th resistance are separately connected the base stage and collector of the triode.
10. such as the described in any item DC motor control circuits of claim 1-9, which is characterized in that the power supply module includes
Rectification circuit and Switching Power Supply；
The input terminal of the rectification circuit is connect with electric main output end, the output end of the rectification circuit with it is to be powered straight
Stream input end of motor is connected with the Switching Power Supply, and the rectification circuit converts the electric main to described to be powered straight
The motor power of voltage needed for galvanic electricity machine, the Switching Power Supply are converted to the output voltage after rectification with the first given voltage
The first power supply and second source with the second given voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480617.0A CN110176883A (en) | 2019-06-04 | 2019-06-04 | Direct current motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480617.0A CN110176883A (en) | 2019-06-04 | 2019-06-04 | Direct current motor control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN110176883A true CN110176883A (en) | 2019-08-27 |
Family
ID=67697782
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|---|---|---|---|
| CN201910480617.0A Pending CN110176883A (en) | 2019-06-04 | 2019-06-04 | Direct current motor control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162178A (en) * | 2021-04-27 | 2021-07-23 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
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| CN113162178B (en) * | 2021-04-27 | 2024-05-24 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
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Application publication date: 20190827 |