CN105515283B - Motor and its alignment circuit and method - Google Patents
Motor and its alignment circuit and method Download PDFInfo
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- CN105515283B CN105515283B CN201510897279.2A CN201510897279A CN105515283B CN 105515283 B CN105515283 B CN 105515283B CN 201510897279 A CN201510897279 A CN 201510897279A CN 105515283 B CN105515283 B CN 105515283B
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- motor
- predetermined capacitive
- output valve
- preset rotation
- speed
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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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
Abstract
The invention discloses a kind of motor and its alignment circuit and methods.Wherein, which includes：Predetermined capacitive, the both ends of predetermined capacitive are connected to the both ends of AC power；The first branch, the first branch are connected to the both ends of AC power by predetermined capacitive, for the output valve of the current rotational speed regulation predetermined capacitive of motor that basis detects, wherein, output valve is used for the current rotational speed regulation of motor to preset rotation speed；Motor, motor are in parallel with the first branch.The present invention is solved in the stepless speed regulation scheme in technology since voltage or electric current discontinuously induce the technical issues of motor is made an uproar.
Description
Technical field
The present invention relates to Motor Control Field, in particular to a kind of motor and its alignment circuit and method.
Background technology
In the prior art, exchange iron-shell motor generally use speed-regulating scheme include tap speed-regulating, resistance-capacitance depressurization speed governing and
Thyristor speed control etc..Wherein, tap speed-regulating and resistance-capacitance depressurization speed governing can realize the step speed regulation of motor；Thyristor speed control can be with
It realizes the stepless speed regulation of motor, but since the voltage of thyristor speed control scheme input motor is chopping voltage, motor can be induced and gone out
Existing noise.There is the stable operation that noise can influence motor in motor, also, when motor is installed in household electrical appliance, motor is made an uproar
Sound can be to user with certain influence.
For it is above-mentioned the problem of, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of motor and its alignment circuit and method, at least to solve nothing of the prior art
Since voltage or electric current discontinuously induce motor and the technical issues of noise occurs in grade speed-regulating scheme.
One side according to embodiments of the present invention provides a kind of alignment circuit of motor, including：Predetermined capacitive, institute
The both ends for stating predetermined capacitive are connected to the both ends of AC power；The first branch, the first branch are connected by the predetermined capacitive
The both ends of the AC power are connected to, for the output of the predetermined capacitive according to the current rotational speed regulation of motor detected
Value, wherein, the output valve is used for the current rotational speed regulation of the motor to preset rotation speed；And motor, the motor with
The first branch is in parallel.
Further, the first branch is additionally operable to, in the output valve increase of the predetermined capacitive, adjust the motor
Current rotating speed increase, when the predetermined capacitive output valve reduce when, adjust the motor current rotating speed reduce.
Further, the first branch includes：Controllable switch, the of the first end of the controllable switch and the motor
One end is connected, and the second end of the controllable switch is connected with the second end of the motor, for according to detecting
The current rotational speed regulation duty ratio of motor, wherein, turn-on time of the duty ratio for the controllable switch in one cycle
With the ratio in the period；And default load, the default load are connected to the two of the motor by the controllable switch
End, wherein, when the duty ratio increases, the electric current increase at the default load both ends is described when the duty ratio reduces
The electric current at default load both ends reduces.
Further, the preset rotation speed includes the first preset rotation speed and the second preset rotation speed, when detecting the motor
Current rotating speed when being more than first preset rotation speed, the controllable switch increases duty ratio, when detecting working as the motor
When preceding rotating speed is less than second preset rotation speed, the controllable switch reduces duty ratio, wherein, first preset rotation speed is more than
Second preset rotation speed.
Further, when the electric current increase at the default load both ends, the output valve of the predetermined capacitive reduces, and works as institute
When stating the electric current reduction at default load both ends, the output valve increase of the predetermined capacitive.
Another aspect according to embodiments of the present invention additionally provides a kind of speed regulating method of motor, appoints through the above
Alignment circuit described in one carries out the control of motor, the method includes：Compare the current rotating speed of the motor detected with it is pre-
If the size of rotating speed；The output valve of the predetermined capacitive of the alignment circuit is adjusted according to comparison result, wherein, the predetermined capacitive
The both ends of AC power are connected to by the motor；And working as the motor, is controlled according to the output valve of the predetermined capacitive
Preceding rotating speed.
Further, the output valve of the predetermined capacitive includes output voltage values and output current value, the rotating speed of target
Including the first preset rotation speed and the second preset rotation speed, the output valve of the predetermined capacitive of the alignment circuit is adjusted according to comparison result
Including：The size of the duty ratio of the controllable switch of the alignment circuit is adjusted according to the comparison result, wherein, when the comparison
When being as a result more than first preset rotation speed for the current rotating speed of the motor, increase the duty of the controllable switch of the circuit
Than when the comparison result is less than second preset rotation speed for the current rotating speed of the motor, reducing the duty ratio
Value, wherein, first preset rotation speed is more than the preset rotation speed；And it is preset according to the big minor adjustment of the duty ratio
The output valve of capacitance, wherein, when the duty ratio increases, the output valve of the predetermined capacitive reduces, when the duty ratio subtracts
Hour, the output valve increase of the predetermined capacitive.
Further, the output valve of the predetermined capacitive of circuit includes according to the big minor adjustment of the duty ratio：Work as institute
When stating duty ratio increase, the electric current at the default load both ends of the alignment circuit increases, and controls the output valve of the predetermined capacitive
Reduce；Or when the duty ratio reduces, the electric current at the default load both ends of the alignment circuit reduces, and controls the default electricity
The output valve increase of appearance.
Further, the rotating speed for controlling the motor according to the output valve of the predetermined capacitive includes：When the default electricity
When the output valve of appearance reduces, the current rotating speed of the motor is controlled to be reduced to first preset rotation speed；Or when the default electricity
During the output valve increase of appearance, the current rotating speed of the motor is controlled to be increased to second preset rotation speed.
Another aspect according to embodiments of the present invention additionally provides a kind of motor, which is characterized in that including in the above
The alignment circuit of any one motor provided.
In embodiments of the present invention, using predetermined capacitive, the both ends of the predetermined capacitive are connected to the both ends of AC power；
The first branch, the first branch are connected to the both ends of the AC power by the predetermined capacitive, are detected for basis
Motor current rotational speed regulation described in predetermined capacitive output valve, wherein, the output valve is used for the current of the motor
Rotational speed regulation is to preset rotation speed；Motor, the motor mode in parallel with the first branch.By the first branch according to detection
The output valve of the rotational speed regulation predetermined capacitive of the motor arrived when the output valve of predetermined capacitive changes, can control increase
The rotating speed of motor or control reduce the rotating speed of motor, realize the stepless speed regulation of motor, and act on by the afterflow of predetermined capacitive,
So that input motor voltage (either electric current) for continuous voltage (either electric current) avoid due to motor voltage (or
Electric current) discontinuously cause to bring noise in Speed Process of DC Motor, relative to the stepless speed regulation scheme of motor in the prior art, reach
It has arrived motor and during stepless speed regulation has been not in the purpose of noise, and then solved in the stepless speed regulation scheme in technology
Since voltage or electric current discontinuously induce the technical issues of motor is made an uproar.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of the alignment circuit of motor according to embodiments of the present invention；And
Fig. 2 is a kind of flow chart of the speed regulating method of motor according to embodiments of the present invention.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not listing clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
According to embodiments of the present invention, a kind of alignment circuit of motor is provided.
Fig. 1 is a kind of schematic diagram of the alignment circuit of motor according to embodiments of the present invention, as shown in Figure 1, the circuit packet
Include predetermined capacitive 10, the first branch 20 and motor 30：
The both ends of predetermined capacitive 10 are connected to the both ends of AC power.
Specifically, as shown in Figure 1, by 10 incoming transport power supply of predetermined capacitive, resistance-capacitance depressurization is carried out.As shown in Figure 1, pre-
If the output terminal of capacitance 10 is divided into two branches, i.e. branch where the first branch 20 and motor 30.
In the motor stepless speed regulation scheme of the prior art, the electric current and voltage waveform of motor are discontinuous waveform, the non-company
Continuous waveform causes motor to occur noise in speed regulation process, is unfavorable for the operation of motor.And it is arranged on default in AC power
Capacitance 10 is alignment circuit afterflow so that electric current and voltage waveform are continuous full waveform, at this point, motor is in speed regulation process
In the problem of being not in noise.
The first branch 20 is connected to the both ends of AC power by predetermined capacitive 10, for working as according to the motor detected
The output valve of preceding rotational speed regulation predetermined capacitive, wherein, output valve is used for the current rotational speed regulation of motor to preset rotation speed.
Specifically, as shown in Figure 1, the first branch is connected to the both ends of AC power AC, the first branch by predetermined capacitive
The voltage value (or current value) at predetermined capacitive both ends is adjusted according to the motor speed that controller detects, and then adjusts default electricity
The output valve of appearance.Wherein, that detects motor by being mounted on the speed probe (for example, Hall sensor) of motor works as forward
Speed, and the current rotating speed detected is transmitted to controller, controller judges whether motor operates according to the rotating speed received
In normal range (NR).
Motor 30 is in parallel with the first branch 20.
Specifically, as shown in Figure 1, motor is in parallel with the first branch, and pass through predetermined capacitive and be connected to AC power AC's
Both ends.
In embodiments of the present invention, by the first branch according to the output of the rotational speed regulation predetermined capacitive of the motor detected
Value when the output valve of predetermined capacitive changes, can control the rotating speed of increase motor or control to reduce the rotating speed of motor, real
The stepless speed regulation of existing motor, and acted on by the afterflow of predetermined capacitive so that the voltage (or electric current) of motor is inputted to connect
Continuous voltage (either electric current) is avoided since the voltage (or electric current) of motor discontinuously leads to the band in Speed Process of DC Motor
Carry out noise, relative to the stepless speed regulation scheme of motor in the prior art, reached motor is not in during stepless speed regulation
The purpose of noise, and then solve in the stepless speed regulation scheme in technology to go out since voltage or electric current discontinuously induce motor
The technical issues of now making an uproar.
Optionally, as shown in Figure 1, the first branch is additionally operable in the output valve increase of predetermined capacitive, regulation motor turns
Speed increase, when the output valve of predetermined capacitive reduces, the rotating speed of regulation motor reduces.
It should be noted that in embodiments of the present invention, motor is chosen for exchange iron-shell motor.
The output valve of predetermined capacitive can be voltage value, can also be current value.If predetermined capacitive output voltage value (or
Person output current value) increase when, then motor both ends voltage value (or current value) increase；If the electricity of predetermined capacitive C outputs
Then the voltage value (or current value) at motor both ends reduces when pressure value (the either current value of output) reduces.If motor both ends
Voltage value (or current value) increases, then the rotating speed raising of motor；If the voltage value (or current value) at motor both ends reduces,
The rotating speed of motor reduces.
Optionally, as shown in Figure 1, the first branch includes：Controllable switch 40 and default load 50, wherein：
The first end of controllable switch is connected with the first end of motor, the second end of controllable switch and the second end phase of motor
Connection, for the current rotational speed regulation duty ratio of motor that basis detects, wherein, duty ratio is controllably opens in one cycle
The turn-on time of pass and the ratio in period.
Preset rotation speed includes the first preset rotation speed and the second preset rotation speed, when controller detects that the rotating speed of motor is more than the
During one preset rotation speed, control controllable switch increase duty ratio, when controller detects that the rotating speed of motor is less than the second preset rotation speed
When, control controllable switch reduces duty ratio, wherein, the first preset rotation speed is more than the second preset rotation speed.
Default load 50 is connected to the both ends of motor by controllable switch, wherein, when duty ratio increases, preset load two
The electric current increase at end, when duty ratio reduces, the electric current for presetting load both ends reduces.
When the electric current increase at default load both ends, the output valve of predetermined capacitive reduces, when the electric current at default load both ends
During reduction, the output valve increase of predetermined capacitive.
It should be noted that controllable switch can be chosen for the switches such as thyristor, field-effect tube.Preferably, in this hair
In bright embodiment, controllable switch can be chosen for silicon-controlled (also known as thyristor).
Specifically, controllable switch can be silicon-controlled, and the both ends of motor are connected to by default load, work as revolution speed sensing
It is silicon-controlled (that is, controllable by adjusting when device detects the rotating speed of motor more than the first preset rotation speed or less than the second preset rotation speed
Switch) the angle of flow, to adjust the duty ratio τ of silicon-controlled (that is, controllable switch), wherein, τ=ton/(ton+toff), tonFor can
Control the turn-on time of silicon (that is, controllable switch) in one cycle, toffFor silicon-controlled (that is, controllable switch) in one cycle
Turn-off time, (ton+toff) for a cycle T, τ be duty ratio.
When complete machine is run, complete machine controller receives the motor speed that speed probe detects, when speed probe is examined
When measuring the rotating speed of motor more than the first preset rotation speed, silicon-controlled increase duty ratio so that the electric current for flowing through default load increases,
The output voltage of predetermined capacitive declines at this time, and control motor speed is reduced to below the first preset rotation speed.When complete machine controller connects
When the motor speed that receipts speed probe detects is less than the second preset rotation speed, silicon-controlled reduction duty ratio so that flow through default
The electric current of load reduces, and the output voltage of predetermined capacitive rises at this time, and control motor speed rises to more than second preset rotation speed.
The alignment circuit of motor provided by the invention using predetermined capacitive current limliting and dynamic allocation predetermined capacitive, is preset as
The characteristic of both end voltage is loaded, by needing an iron-shell motor both ends circuit in parallel for speed governing in the rear class of predetermined capacitive (i.e.
The first branch), the first branch terminates a default load by silicon-controlled, in silicon-controlled output.By adjusting parallel circuit
The duty ratio of (i.e. the first branch) silicon-controlled (that is, controllable switch), the electric current of adjustment parallel circuit (i.e. the first branch), and then adjust
The output voltage of whole predetermined capacitive has achieved the purpose that adjust motor input voltage, has realized the stepless speed regulation of exchange iron-shell motor.
According to embodiments of the present invention, a kind of embodiment of the speed regulating method of motor is provided, it should be noted that in attached drawing
Flow the step of illustrating can be performed in the computer system of such as a group of computer-executable instructions, although also,
Show logical order in flow charts, but in some cases, can be performed with the sequence being different from herein it is shown or
The step of description.
Fig. 2 is a kind of flow chart of the speed regulating method of motor according to embodiments of the present invention, as shown in Fig. 2, this method packet
Following steps S102 is included to step S106：
Step S102 compares the current rotating speed of motor detected and the size of preset rotation speed.
Specifically, the rotating speed of motor is detected by speed probe, and passes through the acquisition of the data acquisition device in controller
The rotating speed of the motor detected.
Step S104 adjusts the output valve of predetermined capacitive according to comparison result, wherein, predetermined capacitive is connected to by motor
The both ends of AC power.
Step S106 controls the current rotating speed of motor according to the output valve of predetermined capacitive.
Specifically, by the way that compared with preset rotation speed, the motor detected being determined, whether motor is operated in normal range (NR).
When the rotating speed of motor is not in normal range (NR), the output valve of predetermined capacitive, and the output valve for passing through predetermined capacitive is adjusted
Control motor is run in normal range (NR).
In embodiments of the present invention, by the first branch according to the output of the rotational speed regulation predetermined capacitive of the motor detected
Value when the output valve of predetermined capacitive changes, can control the rotating speed of increase motor or control to reduce the rotating speed of motor, real
The stepless speed regulation of existing motor, and acted on by the afterflow of predetermined capacitive so that the voltage (or electric current) of motor is inputted to connect
Continuous voltage (either electric current) is avoided since the voltage (or electric current) of motor discontinuously leads to the band in Speed Process of DC Motor
Carry out noise, relative to the stepless speed regulation scheme of motor in the prior art, reached motor is not in during stepless speed regulation
The purpose of noise, and then solve in the stepless speed regulation scheme in technology to go out since voltage or electric current discontinuously induce motor
The technical issues of now making an uproar.
Optionally, the output valve of predetermined capacitive includes output voltage values and output current value, and it is pre- that preset rotation speed includes first
If rotating speed and the second preset rotation speed, the output valve that the predetermined capacitive of circuit is adjusted according to comparison result includes the following steps S1041
To step S1043：
Step S1041 adjusts the size of the duty ratio of controllable switch according to comparison result, wherein, when comparison result is electricity
When the current rotating speed of machine is more than the first preset rotation speed, increase the duty ratio of controllable switch, when comparison result works as forward for motor
When speed is less than the second preset rotation speed, reduce the value of duty ratio, wherein, the first preset rotation speed is more than preset rotation speed.
Step S1043, according to the output valve of the big minor adjustment predetermined capacitive of duty ratio, wherein, when duty ratio increases, in advance
If the output valve of capacitance reduces, when duty ratio reduces, the output valve increase of predetermined capacitive.
It should be noted that controllable switch can be chosen for the switches such as thyristor, power transistor and IGBT.As excellent
Choosing, in embodiments of the present invention, controllable switch can be chosen for silicon-controlled (also known as thyristor).
Specifically, when the rotating speed for detecting motor is higher than the first preset rotation speed, show that motor is not transported in normal range (NR)
Row, at this point, silicon-controlled (that is, controllable switch) is controlled to increase duty ratio τ, wherein, τ=ton/(ton+toff), tonIt is silicon-controlled
The turn-on time of (that is, controllable switch) in one cycle, toffFor the pass of silicon-controlled (that is, controllable switch) in one cycle
The disconnected time, τ is duty ratio.Wherein, increase turn-on time t by reducing the angle of flow of silicon-controlled (that is, controllable switch)on, and then
Increase duty ratio τ.When the rotating speed for detecting motor is less than the second preset rotation speed, again show that motor is not transported in normal range (NR)
Row, at this point, silicon-controlled (that is, controllable switch) is controlled to reduce duty ratio τ.
Wherein, when duty ratio increases, the output voltage of predetermined capacitive reduces；When duty ratio reduces, predetermined capacitive
Output voltage increases.
Optionally, the following two kinds situation is included according to the output valve of the predetermined capacitive of the big minor adjustment circuit of duty ratio：
Situation one, when duty ratio increases, the electric current increase at the default load both ends of circuit controls the output of predetermined capacitive
Value reduces.
Specifically, when silicon-controlled (that is, controllable switch) adjusts duty ratio increase so that the electric current for flowing through default load increases
Greatly, circuit as shown in Figure 1 according to current law it is found that the electric current of predetermined capacitive increases, leads to the voltage at predetermined capacitive both ends
Increase, and then the output voltage of predetermined capacitive and electric current reduce.
Situation two, when duty ratio reduces, the electric current at the default load both ends of circuit reduces, and controls the output of predetermined capacitive
Value increase.
Specifically, when silicon-controlled (that is, controllable switch), which adjusts duty ratio, to be reduced so that the electric current for flowing through default load subtracts
Small, as shown in Figure 1 circuit according to current law it is found that the electric current of predetermined capacitive reduces, leads to the voltage at predetermined capacitive both ends
Reduce, and then the output voltage of predetermined capacitive and electric current increase.
Optionally, the rotating speed for controlling motor according to the output valve of predetermined capacitive includes following two situations：
Situation three when the output valve of predetermined capacitive reduces, controls the current rotating speed of motor to be reduced to the first preset rotation speed.
Situation four when the output valve increase of predetermined capacitive, controls the current rotating speed of motor to be increased to the second preset rotation speed.
Specifically, when the output voltage of predetermined capacitive reduces, the voltage at motor both ends reduces, at this point, the rotating speed of motor
Decline, until being reduced to below the first preset rotation speed.When the output voltage increase of predetermined capacitive, the voltage at motor both ends increases
Greatly, at this point, the rotating speed of motor rises, until rising to more than second preset rotation speed.
Motor speed regulating method provided by the invention, relative to traditional motor speed regulating method can to iron-clad alternating current generator into
Row stepless speed regulation, and noise will not be generated because of the speed governing of motor, greatly extend the use scope of exchange iron-shell motor
And versatility.Relative to electric machine speed regulation scheme of the prior art is more convenient, cost is cheaper.
A kind of motor is additionally provided according to embodiments of the present invention.The motor includes：The above provided any one
The alignment circuit of motor.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasize particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units or component can combine or
Person is desirably integrated into another system or some features can be ignored or does not perform.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of this embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is independent product sale or uses
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially
The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products
It embodies, which is stored in a storage medium, is used including some instructions so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment the method for the present invention whole or
Part steps.And aforementioned storage medium includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of alignment circuit of motor, which is characterized in that including：
Predetermined capacitive, the both ends of the predetermined capacitive are connected to the both ends of AC power；
The first branch, the first branch is connected to the both ends of the AC power by the predetermined capacitive, for according to inspection
The output valve of predetermined capacitive described in the current rotational speed regulation of the motor measured, wherein, the output valve is used for the motor
Current rotational speed regulation is to preset rotation speed；And
Motor, the motor is in parallel with the first branch, wherein, the first branch is additionally operable in the defeated of the predetermined capacitive
When going out value increase, the current rotating speed increase of the motor is adjusted, when the output valve of the predetermined capacitive reduces, adjusts the electricity
The current rotating speed of machine reduces, and the first branch includes：
Controllable switch, the first end of the controllable switch are connected with the first end of the motor, and the second of the controllable switch
End is connected with the second end of the motor, for the current rotational speed regulation duty ratio of the motor that basis detects, wherein,
The duty ratio is the turn-on time of the controllable switch in one cycle and the ratio in the period；And
Default load, the default load are connected to the both ends of the motor by the controllable switch, wherein, when the duty
During than increase, the electric current increase at the default load both ends, when the duty ratio reduces, the electric current at the default load both ends
Reduce.
2. circuit according to claim 1, which is characterized in that the preset rotation speed includes the first preset rotation speed and second in advance
If rotating speed, when the current rotating speed for detecting the motor is more than first preset rotation speed, the controllable switch increases duty
Than, when the current rotating speed for detecting the motor is less than second preset rotation speed, the controllable switch reduces duty ratio,
In, first preset rotation speed is more than second preset rotation speed.
3. circuit according to claim 1, which is characterized in that described when the electric current increase at the default load both ends
The output valve of predetermined capacitive reduces, when the electric current at the default load both ends reduces, the output valve increase of the predetermined capacitive.
4. a kind of speed regulating method of motor, which is characterized in that by the alignment circuit described in any one of claims 1 to 3 into
The control of row motor, the method includes：
Compare the current rotating speed of motor detected and the size of preset rotation speed；
The output valve of the predetermined capacitive of the alignment circuit is adjusted according to comparison result, wherein, the predetermined capacitive passes through described
Motor is connected to the both ends of AC power；And
The current rotating speed of the motor is controlled according to the output valve of the predetermined capacitive, wherein, the first branch is additionally operable to
During the output valve increase of the predetermined capacitive, the current rotating speed increase of the motor is adjusted, when the output valve of the predetermined capacitive
During reduction, the current rotating speed for adjusting the motor reduces, and the output valve of the predetermined capacitive includes output voltage values and output electricity
Flow valuve, the preset rotation speed include the first preset rotation speed and the second preset rotation speed, and the alignment circuit is adjusted according to comparison result
The output valve of predetermined capacitive include：
The size of the duty ratio of the controllable switch of the alignment circuit is adjusted according to the comparison result, wherein, when the comparison
When being as a result more than first preset rotation speed for the current rotating speed of the motor, the controllable switch for increasing the alignment circuit accounts for
Empty ratio when the comparison result is less than second preset rotation speed for the current rotating speed of the motor, reduces the duty ratio
Value, wherein, first preset rotation speed be more than second preset rotation speed；And
According to the output valve of predetermined capacitive described in the big minor adjustment of the duty ratio, wherein, it is described when the duty ratio increases
The output valve of predetermined capacitive reduces, when the duty ratio reduces, the output valve increase of the predetermined capacitive.
5. according to the method described in claim 4, it is characterized in that, according to the big minor adjustment of the duty ratio alignment circuit
The output valve of predetermined capacitive include：
When the duty ratio increases, the electric current increase at the default load both ends of the alignment circuit controls the predetermined capacitive
Output valve reduce；Or
When the duty ratio reduces, the electric current at the default load both ends of the alignment circuit reduces, and controls the predetermined capacitive
Output valve increase.
6. according to the method described in claim 4, it is characterized in that, the motor is controlled according to the output valve of the predetermined capacitive
Rotating speed include：
When the output valve of the predetermined capacitive reduces, the current rotating speed of the motor is controlled to be reduced to described first default turn
Speed；Or
When the output valve increase of the predetermined capacitive, the current rotating speed of the motor is controlled to be increased to described second default turn
Speed.
7. a kind of motor, which is characterized in that include the alignment circuit of any one of the claims 1 to 3 motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897279.2A CN105515283B (en) | 2015-12-07 | 2015-12-07 | Motor and its alignment circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105515283B true CN105515283B (en) | 2018-06-26 |
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| CN108274498B (en) * | 2018-01-25 | 2020-09-04 | 厦门芯阳科技股份有限公司 | Work control method of hair clipper |
| CN112532145B (en) | 2019-09-18 | 2023-03-28 | 华为技术有限公司 | Motor vibration control method and electronic device |
Citations (5)
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|---|---|---|---|---|
| US3657622A (en) * | 1970-04-30 | 1972-04-18 | Reuland Electric Co Industry | Control for adjusting and regulating the speed of an electric motor |
| CN101997477A (en) * | 2009-08-17 | 2011-03-30 | 樱花卫厨（中国）股份有限公司 | PWM pulse regulating circuit for motor of range hood |
| CN102045022A (en) * | 2009-11-16 | 2011-05-04 | 孙宏斌 | Stepless speed regulating circuit of single-phase alternating-current motor |
| CN102386823A (en) * | 2011-10-19 | 2012-03-21 | 格力电器（中山）小家电制造有限公司 | Motor speed adjusting device |
| CN102480263A (en) * | 2010-11-30 | 2012-05-30 | 珠海格力电器股份有限公司 | Air conditioner, alternating current motor and speed adjusting device thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3657622A (en) * | 1970-04-30 | 1972-04-18 | Reuland Electric Co Industry | Control for adjusting and regulating the speed of an electric motor |
| CN101997477A (en) * | 2009-08-17 | 2011-03-30 | 樱花卫厨（中国）股份有限公司 | PWM pulse regulating circuit for motor of range hood |
| CN102045022A (en) * | 2009-11-16 | 2011-05-04 | 孙宏斌 | Stepless speed regulating circuit of single-phase alternating-current motor |
| CN102480263A (en) * | 2010-11-30 | 2012-05-30 | 珠海格力电器股份有限公司 | Air conditioner, alternating current motor and speed adjusting device thereof |
| CN102386823A (en) * | 2011-10-19 | 2012-03-21 | 格力电器（中山）小家电制造有限公司 | Motor speed adjusting device |
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