CN109849536A - A kind of motor phase method, apparatus, storage medium and printer - Google Patents
A kind of motor phase method, apparatus, storage medium and printer Download PDFInfo
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- CN109849536A CN109849536A CN201910100882.1A CN201910100882A CN109849536A CN 109849536 A CN109849536 A CN 109849536A CN 201910100882 A CN201910100882 A CN 201910100882A CN 109849536 A CN109849536 A CN 109849536A
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Abstract
The invention discloses a kind of motor phase method, apparatus, storage medium and printer, printer includes controller, motor driving chip, stepper motor and motor driving power supply；Drive motor chip is electrically connected with stepper motor and motor driving power supply respectively；Controller includes memory and processor, and memory and drive motor chip are connect with processor, and computer program is stored in memory, and computer program can be executed by processor following steps: inquiring current paper feed print out task state；When judging currently without paper feed print out task, keep motor driving power supply for the power supply of motor driving chip, and the input phase signal for controlling motor driving chip is constant, and motor driving chip is made to enter PGC demodulation state；Under PGC demodulation state, control motor driving chip exports scheduled DC current to stepper motor, to lock the phase of stepper motor.Paper feed error can be effectively eliminated.
Description
Technical field
The present invention relates to smart machine fields, more particularly to a kind of motor phase method, apparatus, storage medium and printing
Machine.
Background technique
Thermal printer is very high to the positioning accuracy request of label paper or black millimeter paper in the application, long especially for label
Degree or black mark are spaced small consumptive material, in order to guarantee that the accuracy of positioning then needs to guarantee the accurate phase controlling of motor, i.e., in horse
Energy locking phase is also required to up to static.
The existing motor phase control technology of printer is realized by control stepper motor driver phase signal,
At the end of each stepper motor paper feed, achieve the purpose that stop operating by disconnecting motor drive current.Stepper motor is determined
Subcoil circuit be high-impedance state, at this time motor stator magnetic pole only and its micro Vector Magnetic Field, enough magnetic can not be generated
Force locking motor rotor makes rotor that there is sufficiently large holding torque to carry out locking phase, applies rotating torque to motor rotor and is easy
Make rotor that phase change occur, such as: for machine after having printed a label, printer controller records phase when motor stalling
Position guarantees the accuracy of motor phase by controlling corresponding phase signal when being again started up motor；During stalling into
Go paper-tear picture movement, motor rotor does not have holding torque during power-off, and rubber roller is dragged to turn over certain angle by paper, but
Master control can not know the dragged length of how many step of paper, it is believed that paper is also held on original position, the horse of master control
Up to control phase recording and motor actual phase, there are deviations, and next time when starter motor, both which will lead to phase is same
Before step, step-out can all occur for stepper motor, and master control paper feed distance record generates error, motor step-out meeting with practical paper feed distance
Starting printing effect is led to problems such as to will appear compression, white line, deformation, dislocation, paper feed error leads to next label printing position
Setting accordingly to shift, while causing tag location inaccurate.
Summary of the invention
A kind of motor phase method, apparatus, storage medium and the printer that the embodiment of the present invention proposes, can effectively prevent
Only since tearing for paper causes motor rotor to be rotated when static, paper feed error is eliminated, starting is efficiently solved and beats
The problems such as printing positional shift and inaccurate tag location.
The embodiment of the invention provides a kind of printers, including controller, motor driving chip, the first transmission mechanism, step
Power supply is driven into motor, paper-feed rubber roller and motor；Wherein, the stepper motor by the first transmission mechanism with it is described walk
Paper rubber roller forms transmission connection, and the drive motor chip drives power supply with the stepper motor and the motor respectively
Electrical connection；The controller includes memory and processor, the memory, the drive motor chip with the processing
Device connects, and computer program is stored in the memory, and the computer program can be executed by the processor to realize
Following steps:
Inquire current paper feed print out task state；
When judging currently without paper feed print out task, keep motor driving power supply for the power supply of motor driving chip,
And the input phase signal for controlling motor driving chip is constant, and motor driving chip is made to enter PGC demodulation state；
Under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor, with
Lock the phase of the stepper motor.
Preferably, the scheduled DC current is less than the motor drive current under paper feed print state.
It preferably, further include adjusting feedback resistance circuit；The control signal and control for adjusting feedback resistance circuit
The control output end of device connects, and the output end for adjusting feedback resistance circuit is connect with the motor driving chip；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
The feedback resistance resistance value formed by adjusting the feedback resistance control circuit, to obtain scheduled direct current
Stream.
Preferably, the adjusting feedback resistance circuit includes the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, first resistor R1, the
Two resistance R2,3rd resistor R3, the 4th resistance R4 and the 5th resistance R5；Wherein:
The pole G of the first metal-oxide-semiconductor Q1 and the control output end of controller connect；
The first end of the first resistor R1 is connected to the pole G of the first metal-oxide-semiconductor Q1；The second of the first resistor R1
End ground connection；The first end of the first resistor R1 is connected to the pole G of the second metal-oxide-semiconductor Q2；
The first end of the second resistance R2 is connected to the pole D of the first metal-oxide-semiconductor Q1, and the second of the second resistance R2
End is connected to the input terminal of the motor driving chip；
The first end of the 3rd resistor R3 is connected to the pole D of the second metal-oxide-semiconductor Q2, and the second of the 3rd resistor R3
End is connected to the input terminal of the motor driving chip；
The first end of the 4th resistance R4 is grounded, and the second end of the 4th resistance R4 is connected to the motor driving chip
Input terminal；
The first end of the 5th resistance R5 is grounded, and the second end of the 5th resistance R5 is connected to the motor driving core
The input terminal of piece.
It preferably, further include adjusting reference voltage circuit；It is described adjust reference voltage resistance circuit control signal with
The control output end of controller connects, and the output end for adjusting reference voltage circuit is connect with the motor driving chip；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
By adjusting the reference voltage value of the reference voltage control circuit, to obtain scheduled DC current.
Preferably, the adjusting reference voltage circuit includes third metal-oxide-semiconductor Q3, the 6th resistance R6, the 7th resistance R7, the 8th
Resistance R8 and the 9th resistance R9；Wherein:
The first end of the 6th resistance R6 is connected to the voltage output end of motor driving chip, the 6th resistance R6
Two ends are then connected to the motor driving chip after connecting with the first end of the 7th resistance R7, the first end of the 8th resistance R8
Voltage input end；
The second end of the 9th resistance R9 is grounded；The second end of the 8th resistance R8 is connected to the third metal-oxide-semiconductor
The pole D of Q3；
The first end of the 9th resistance R9 is connected to the pole G of the third metal-oxide-semiconductor Q3, and the second of the 9th resistance R9
End ground connection；
The pole G of the third metal-oxide-semiconductor Q3 and the control output end of controller connect.
Preferably, the controller is connect with the motor driving chip by I2C interface；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
It is configured by torque DAC register, feedback oscillator register of the I2C interface to motor driving chip, to change
Become register value and change driving current feedback quantity, to obtain scheduled DC current；Wherein, the I2C on the processor makees
For main equipment.
Preferably, the controller is connect with the motor driving chip 2 by SPI interface；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
It is configured by torque DAC register, feedback oscillator register of the SPI interface to motor driving chip, to change
Become register value and change driving current feedback quantity, to obtain scheduled DC current.
Second aspect, the embodiment of the invention provides a kind of motor phase control methods, comprising:
Inquire current paper feed print out task state；
When judging currently without paper feed print out task, keep motor driving power supply for the power supply of motor driving chip,
And the input phase signal for controlling motor driving chip is constant, and motor driving chip is made to enter PGC demodulation state；
Under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor, with
Lock the phase of the stepper motor.
The third aspect, the embodiment of the invention provides a kind of motor phase control devices, comprising:
Query unit, for inquiring current paper feed print out task state；
Judging unit is motor for when judging currently without paper feed print out task, keeping motor driving power supply
Driving chip power supply, and the input phase signal for controlling motor driving chip is constant, and motor driving chip is made to enter PGC demodulation
State；
Control unit, under PGC demodulation state, control motor driving chip to be predetermined to stepper motor output
DC current, to lock the phase of the stepper motor.
Fourth aspect, it is described computer-readable to deposit the embodiment of the invention also provides a kind of computer readable storage medium
Storage media includes the computer program of storage, wherein controls the computer-readable storage in computer program operation
Equipment executes the printing paper inclination correction method as described in above-described embodiment any one where medium.
In said one embodiment, after stepper motor stops every time, power supply is driven to keep by control motor
It powers to motor driving chip, controller provides fixed phase control signal for motor driving chip, in phase control signal
In the state of constant, controller controls motor driving chip and exports scheduled DC current, comes so that motor rotor PGC demodulation
Get off；Once the rotor PGC demodulation of stepper motor, transmission mechanism is also opposing stationary, and paper-feed rubber roller is driven the clamper of mechanism
It acts on and can not rotate, can effectively prevent paper and tear causes motor rotor to be rotated when static, eliminates paper feed
Error efficiently solves the problems such as starting to walk print position displacement and inaccurate tag location.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the printer that first embodiment of the invention provides.
Fig. 2 is the first pass schematic diagram for the motor phase control method that first embodiment of the invention provides.
Fig. 3 is the circuit structure diagram of motor phase control method provided in an embodiment of the present invention.
Fig. 4 is the second procedure schematic diagram for the motor phase control method that second embodiment of the invention provides.
Fig. 5 is the structural schematic diagram for the motor phase control device that third embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 and Fig. 2 are please referred to, first embodiment of the invention provides a kind of printer, including the driving of controller 1, motor
Chip 2, the first transmission mechanism 4, stepper motor 5, paper-feed rubber roller 6 and motor drive power supply 3；Wherein, the stepping horse
Formed and be sequentially connected with the paper-feed rubber roller 6 by the first transmission mechanism 4 up to 5, the drive motor chip 2 respectively with the step
It is electrically connected into motor 5 and motor driving power supply 3.
In the present embodiment, for the paper-feed rubber roller 6 for carrying out paper feeding, the paper-feed rubber roller 6 is with metal or other materials
Material is core, overcoating rubber manufactured roll product through vulcanization, certainly, it should be noted that the material of the paper-feed rubber roller 6 can
It selects according to the actual situation, here, the present invention does not do specific limitation.
In the present embodiment, first transmission mechanism 4 is preferably gear drive, may include one or more
Gear, these gears are linked together by certain connection relationship, are realized and are conducted the torsion obtained from the stepper motor 5
To the paper-feed rubber roller 6, so that the paper-feed rubber roller 6 is rotated along predetermined direction.Certainly, it should be noted that at other
In embodiment, the transmission mechanism is set according to actual conditions, as long as stepper motor 5 is enabled to drive by the transmission mechanism
Paper rubber roller 6 rotates, here, the present invention is not particularly limited.
In the present embodiment, the specific structure of first transmission mechanism 4 and it can refer to the connection type of stepper motor 5
Existing all kinds of Portable thermal printers, especially photo-printer, for example, Canon photo-printer CP1200 or
CP1300 etc., this will not be repeated here by the present invention.
In the present embodiment, the drive motor chip 2 is DRV8711, certainly, it should be noted that in other implementations
In example, the model of the drive motor chip 2 can also be set according to actual conditions, here, the present invention is not particularly limited.
In the present embodiment, the controller 1 includes memory and processor, the memory, the drive motor
Chip 2 is connected to the processor, and computer program is stored in the memory, and the computer program can be described
Processor is executed to realize following steps:
Inquire current paper feed print out task state.
When judging currently without paper feed print out task, keep motor driving power supply 3 for the confession of motor driving chip 2
Electricity, and the input phase signal for controlling motor driving chip 2 is constant, and motor driving chip 2 is made to enter PGC demodulation state.
Under PGC demodulation state, motor driving chip 2 is controlled to stepper motor 5 and exports scheduled DC current, with lock
Determine the phase of stepper motor 5.
In the present embodiment, after printer starting, controller 1 enters paper feed print out task wait state, if control
When device 1 judges currently to have paper feed print out task, ginseng is driven into normal paper feed mode, and according to normal paper feed demand setting motor
Number completes paper feed print out task.Paper feed print out task wait state is come back to after paper feed print out task terminates, at this point,
If controller 1 determines currently without paper feed print out task, keep motor driving power supply 3 for the power supply of motor driving chip 2,
And the input phase signal for controlling motor driving chip 2 is constant, and motor driving chip 2 is made to enter PGC demodulation state.Also,
Under PGC demodulation state, the controller 1 controls motor driving chip 2 and exports scheduled DC current to stepper motor 5, described
DC current is by motor stator coils, so that the magnetic pole of motor stator generates constant Vector Magnetic Field, with 7 magnetic pole of motor rotor
Magnetism on the contrary, so that motor rotor 7 and motor stator magnetic pole mutually firmly adsorb, at this point, motor stator passes through magnetic force
Motor rotor 7 is locked, so that motor rotor 7 is provided with holding torque i.e. anti-rotation kinetic moment (N.m), thus fixing motor rotor
7。
As shown in figure 3, in the present embodiment, after 7 PGC demodulation of motor rotor, can obtain in the following way predetermined
DC current:
It in one embodiment, further include adjusting feedback resistance circuit 11；The control for adjusting feedback resistance circuit 11
Input terminal processed is connect with the control output end of processor 1, and the output end for adjusting feedback resistance circuit 11 and the motor drive
Dynamic chip 2 connects；
It is then described under PGC demodulation state, motor driving chip 2, which is controlled, to the stepper motor 5 exports scheduled direct current
Electric current, to lock the phase of the stepper motor 5, specifically:
The feedback resistance resistance value formed by adjusting the feedback resistance control circuit 11, to obtain scheduled direct current
Stream.
Specifically, the adjusting feedback resistance circuit 11 include the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, first resistor R1,
Second resistance R2,3rd resistor R3, the 4th resistance R4 and the 5th resistance R5；Wherein:
The pole G of the first metal-oxide-semiconductor Q1 is connect with the control output end of controller 1；The first end of the first resistor R1
It is connected to the pole G of the first metal-oxide-semiconductor Q1；The second end of the first resistor R1 is grounded；The first end of the first resistor R1
It is connected to the pole G of the second metal-oxide-semiconductor Q2；The first end of the second resistance R2 is connected to the pole D of the first metal-oxide-semiconductor Q1,
The second end of the second resistance R2 is connected to the input terminal of the motor driving chip 2；The first end of the 3rd resistor R3
It is connected to the pole D of the second metal-oxide-semiconductor Q2, the second end of the 3rd resistor R3 is connected to the defeated of the motor driving chip 2
Enter end；The first end of the 4th resistance R4 is grounded, and the second end of the 4th resistance R4 is connected to the motor driving chip 2
Input terminal；The first end of the 5th resistance R5 is grounded, and the second end of the 5th resistance R5 is connected to the motor driving core
The input terminal of piece 2.
With reference to Fig. 3, in the present embodiment, first metal-oxide-semiconductor Q1's and the second metal-oxide-semiconductor Q2 be N-channel field-effect
Pipe, the first resistor R1 is the grid source resistance of the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2, for preventing the first metal-oxide-semiconductor Q1's
There is floating and damages in grid source electrode.3rd resistor R3 and the 5th resistance R5 is that the motor driving chip 2 exports electric current respectively
Basic feedback resistance, feedback regulation resistance signal RFB_CTRL is high level under normal print paper feed state, the first metal-oxide-semiconductor Q1 and
Second metal-oxide-semiconductor Q2 conducting, second resistance R2 and 3rd resistor R3 parallel connection are as A phase feedback resistance, the electricity of the 4th resistance R4 and the 5th
R5 parallel connection is hindered as B phase feedback resistance, at this point, motor drive current is I1；At the end of primary printing, stepper motor 5 stops
Rotation, the feedback regulation resistance signal RFB_CTRL that the controller 1 exports is low level, at this point, the first metal-oxide-semiconductor Q1 and second
The hourglass source electrode of metal-oxide-semiconductor Q2 is closed, and 3rd resistor R3 and the 5th resistance R5 parallel connection obtain motor driving electricity as AB phase feedback resistance
Flow I2.Since motor drive current is negative feedback control, when 3rd resistor R3 and the 5th resistance R5 parallel connection are opposite as AB
When feed resistance, resistance value becomes larger, so that driving current becomes smaller (I=Vref/R, when R increases, I reduces), so that it is pre- for obtaining
Fixed DC current.
It in another embodiment, further include adjusting reference voltage circuit 12；The adjusting reference voltage resistance circuit
12 control signal is connect with the control output end of controller 1, it is described adjust reference voltage circuit 12 output end with it is described
Motor driving chip 2 connects；
It is then described under PGC demodulation state, motor driving chip 2, which is controlled, to the stepper motor 5 exports scheduled direct current
Electric current, to lock the phase of the stepper motor 5, specifically:
By adjusting the reference voltage value of the reference voltage control circuit 12, to obtain scheduled DC current.Tool
Body is to control third metal-oxide-semiconductor Q3 by reference voltage adjustment signal VREF_CTRL to change the partial-pressure structure of reference voltage, is passed through
Pulse-width signal (pwm signal) turns reference voltage of the constant voltage as motor driving chip, is produced by analog-to-digital conversion (DAC)
Reference voltage of the raw voltage value as motor driving chip.
Specifically, the adjusting reference voltage circuit 12 includes third metal-oxide-semiconductor Q3, the 6th resistance R6, the 7th resistance R7, the
Eight resistance R8 and the 9th resistance R9；Wherein:
The first end of the 6th resistance R6 is connected to the voltage output end of motor driving chip 2, the 6th resistance R6
Second end is then connected to the motor driving core after connecting with the first end of the 7th resistance R7, the first end of the 8th resistance R8
The voltage input end of piece 2；The second end of the 9th resistance R9 is grounded；The second end of the 8th resistance R8 is connected to described
The pole D of three metal-oxide-semiconductor Q3；The first end of the 9th resistance R9 is connected to the pole G of the third metal-oxide-semiconductor Q3, the 9th resistance
The second end of R9 is grounded；The pole G of the third metal-oxide-semiconductor Q3 is connect with the control output end of controller 1.
With reference to Fig. 3, in the present embodiment, in 2 reference voltage control circuit of motor driving chip, the 6th resistance R6 and
Seven resistance R7 are the high and low side divider resistances of reference voltage, and the 8th resistance R8 is the second divider resistance of low survey, and the 9th resistance R9 is
The grid source resistance of third metal-oxide-semiconductor；When reference voltage adjustment signal is high level, third metal-oxide-semiconductor Q3 conducting, third metal-oxide-semiconductor Q3
The 7th resistance R7, the 8th resistance R8 are in parallel after conducting, so that reference voltage reduces, motor drive current is with reference voltage
It reduces and equal proportion reduction, to obtain scheduled DC current.
In another embodiment, referring to Fig. 3,14 be I2C control circuit, and the controller 1 drives with the motor
Chip 2 is connected by I2C interface.
It is then described under PGC demodulation state, motor driving chip 2, which is controlled, to the stepper motor 5 exports scheduled direct current
Electric current, to lock the phase of the stepper motor 5, specifically:
It is configured by torque DAC register, feedback oscillator register of the I2C interface to motor driving chip 2, to change
Become register value and change driving current feedback quantity, to obtain scheduled DC current；Wherein, the I2C conduct on the controller 1
Main equipment.
In another embodiment, referring to Fig. 3,14 be SPI control circuit, and the controller and the motor drive core
Piece 2 is connected by SPI interface,
Then described under PGC demodulation state, control motor driving chip 2 exports scheduled direct current to the stepper motor
Electric current, to lock the phase of the stepper motor, specifically:
It is configured by torque DAC register, feedback oscillator register of the SPI interface to motor driving chip 2, to change
Become register value and change driving current feedback quantity, to obtain scheduled DC current.
The present embodiment drives the motor driving chip 2 that power supply 3 is stepper motor 5 to power by motor, in stepping horse
Up to 5 every time stop after, controller 1 be motor driving chip 2 fixed phase control signal is provided, phase control signal not
In the state of change, the control motor driving chip 2 of controller 1 exports scheduled DC current, and (current value is adjustable drive
Streaming current), come so that motor rotor PGC demodulation gets off；Once the rotor PGC demodulation of stepper motor 5, transmission mechanism are also opposite
Static, paper-feed rubber roller 6 is driven the clamping action of mechanism and can not rotate, and can effectively prevent paper and tear leads to motor
Rotor is rotated when static, eliminates paper feed error.It efficiently solves starting print position displacement and tag location is inaccurate
The problems such as.Once motor rotor PGC demodulation, transmission mechanism is also opposing stationary, and the clamper that paper-feed rubber roller 6 is driven mechanism is made
With and can not rotate, under the pressure of thermal printing head and paper-feed rubber roller 6, paper needs to overcome sizable resistance that could be pulled
Dynamic, paper is become sliding friction from rolling friction by the resistance of paper-feed rubber roller, substantially increases paper tear-resistant kinetic force.
On the basis of first embodiment, in a preferred embodiment of the present invention, the scheduled DC current is less than
Motor drive current under paper feed print state.Guarantee to apply to stepper motor straight when stepper motor 5 carries out locking phase control
Galvanic electricity flow valuve avoids 5 excess temperature of stepper motor, while also ensuring that 5 rotor of stepper motor has sufficiently large anti-rotation kinetic moment.
Wherein, in the present embodiment, the printer further includes that can be realized the essential component of printing institute, for example, answering
Including at least print head, paper delivery mechanism etc..Certainly it can also include more components, structure or circuit, specifically refer to existing
Some printers, this will not be repeated here by the present invention.
Second embodiment of the invention:
Referring to fig. 4, second embodiment of the invention additionally provides a kind of motor phase control method, comprising:
S100 inquires current paper feed print out task state；
S200, when judging currently without paper feed print out task, keeping motor driving power supply is motor driving chip
Power supply, and the input phase signal for controlling motor driving chip is constant, and motor driving chip is made to enter PGC demodulation state；
S300, under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor.
The present embodiment drives power supply for the power supply of stepper motor driving chip by motor, stops it every time in motor
Afterwards, controller provides fixed phase control signal for motor driving chip, in the state that phase control signal is constant, control
Device controls stepper motor driving chip and exports scheduled current value (current value is adjustable driving current), comes so that horse
Get off up to rotor phase lock；Once the rotor PGC demodulation of stepper motor, transmission mechanism is also opposing stationary, paper-feed rubber roller by
The clamping action of transmission mechanism and can not rotate, can effectively prevent paper and tear leads to motor rotor quilt when static
Paper feed error is eliminated in rotation.The problems such as efficiently solving starting print position displacement and inaccurate tag location.Motor rotor is once
PGC demodulation, transmission mechanism is also opposing stationary, and paper-feed rubber roller is driven the clamping action of mechanism and can not rotate, and beats in temperature-sensitive
Under the pressure for printing head and paper-feed rubber roller, paper needs to overcome comparable resistance that could be torn, resistance of the paper by paper-feed rubber roller
Power becomes sliding friction from rolling friction, substantially increases paper tear-resistant kinetic force.
Preferably, the scheduled DC current is less than the motor drive current under paper feed print state.
It preferably, further include adjusting feedback resistance circuit；The control signal and control for adjusting feedback resistance circuit
The control output end of device connects, and the output end for adjusting feedback resistance circuit is connect with the motor driving chip；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
The feedback resistance resistance value formed by adjusting the feedback resistance control circuit, to obtain scheduled direct current
Stream.
It preferably, further include adjusting reference voltage circuit；It is described adjust reference voltage resistance circuit control signal with
The control output end of controller connects, and the output end for adjusting reference voltage circuit is connect with the motor driving chip；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
By adjusting the reference voltage value of the reference voltage control circuit, to obtain scheduled DC current.
Preferably, the controller is connect with the motor driving chip by I2C interface；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
It is configured by torque DAC register, feedback oscillator register of the I2C interface to motor driving chip, to change
Become register value and change driving current feedback quantity, to obtain scheduled DC current；Wherein, the I2C on the processor makees
For main equipment.
Preferably, the controller is connect with the motor driving chip 2 by SPI interface；
Then described under PGC demodulation state, control motor driving chip exports scheduled direct current to the stepper motor
Stream, to lock the phase of the stepper motor, specifically:
It is configured by torque DAC register, feedback oscillator register of the SPI interface to motor driving chip, to change
Become register value and change driving current feedback quantity, to obtain scheduled DC current.
Third embodiment of the invention:
Referring to Fig. 5, third embodiment of the invention provides a kind of motor phase control device, comprising:
Query unit 10, for inquiring current paper feed print out task state；
Judging unit 20 is horse for when judging currently without paper feed print out task, keeping motor driving power supply
It powers up to driving chip, and the input phase signal for controlling motor driving chip is constant, motor driving chip is made to enter phase lock
Determine state；
Control unit 30, under PGC demodulation state, control motor driving chip to be pre- to stepper motor output
Fixed DC current, to lock the phase of the stepper motor.
The embodiment of the invention also provides a kind of computer readable storage mediums, which is characterized in that described computer-readable
Storage medium includes the computer program of storage, wherein controls described computer-readable deposit in computer program operation
Equipment executes the printing paper inclination correction method as described in above-described embodiment any one where storage media.
Wherein, illustratively, the computer program can be divided into one or more units, one or more
A unit is stored in the memory, and is executed by the processor, to complete the present invention.One or more of units
It can be the series of computation machine program instruction section that can complete specific function, the instruction segment is for describing the computer program
Implementation procedure in printer.
The printer may include, but are not limited to processor, memory.It will be understood by those skilled in the art that described show
It is merely intended to the example of printer, does not constitute the restriction to printer, may include components more more or fewer than diagram,
Perhaps certain components or different components are combined, such as the printer can also include input-output equipment, network insertion
Equipment, bus etc..
Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng the control centre of the printer utilizes the various pieces of various interfaces and the entire printer of connection.
The memory can be used for storing the computer program and/or module, and the processor is by operation or executes
Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization
The various functions of printer.The memory can mainly include storing program area and storage data area, wherein storing program area can
Application program needed for storage program area, at least one function (such as sound-playing function, image player function etc.) etc.；It deposits
Storage data field, which can be stored, uses created data (such as audio data, phone directory etc.) etc. according to mobile phone.In addition, memory
It may include high-speed random access memory, can also include nonvolatile memory, such as hard disk, memory, plug-in type hard disk,
Intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash
Card), at least one disk memory, flush memory device or other volatile solid-state parts.
Wherein, if the unit that the printer integrates is realized in the form of SFU software functional unit and as independent product
When selling or using, it can store in a computer readable storage medium.Based on this understanding, in present invention realization
The all or part of the process in embodiment method is stated, relevant hardware can also be instructed to complete by computer program, institute
The computer program stated can be stored in a computer readable storage medium, which, can when being executed by processor
The step of realizing above-mentioned each embodiment of the method.Wherein, the computer program includes computer program code, the computer
Program code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer can
Reading medium may include: any entity or device, recording medium, USB flash disk, mobile hard that can carry the computer program code
Disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It needs to illustrate
It is that the content that the computer-readable medium includes can be fitted according to the requirement made laws in jurisdiction with patent practice
When increase and decrease, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium does not include electric carrier wave letter
Number and telecommunication signal.
It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
It needs that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.In addition, device provided by the invention
In embodiment attached drawing, the connection relationship between module indicate between them have communication connection, specifically can be implemented as one or
A plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, it can understand
And implement.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (11)
1. a kind of printer, including controller, motor driving chip, the first transmission mechanism, stepper motor, paper-feed rubber roller and horse
Up to driving power supply；Wherein, the stepper motor is formed by the first transmission mechanism and the paper-feed rubber roller and is sequentially connected, institute
Drive motor chip is stated to be electrically connected with the stepper motor and motor driving power supply respectively；It is characterized in that, institute
Stating controller includes memory and processor, and the memory, the drive motor chip are connected to the processor, institute
It states and is stored with computer program in memory, the computer program can be executed by the processor to realize following steps:
Inquire current paper feed print out task state；
When judging currently without paper feed print out task, keep motor driving power supply for the power supply of motor driving chip, and control
The input phase signal of motor driving chip processed is constant, and motor driving chip is made to enter PGC demodulation state；
Under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor, with locking
The phase of the stepper motor.
2. printer according to claim 1, the scheduled DC current is less than the motor under paper feed print state
Driving current peak value.
3. printer according to claim 1, which is characterized in that further include adjusting feedback resistance circuit；It is described to adjust instead
Feed resistance circuit control signal and controller control output end connect, it is described adjust feedback resistance circuit output end with
The motor driving chip connection；
Then described under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor,
To lock the phase of the stepper motor, specifically:
The feedback resistance resistance value formed by adjusting the feedback resistance control circuit, to obtain scheduled DC current.
4. printer according to claim 3, which is characterized in that the adjusting feedback resistance circuit include the first metal-oxide-semiconductor Q1,
Second metal-oxide-semiconductor Q2, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4 and the 5th resistance R5；Wherein:
The pole G of the first metal-oxide-semiconductor Q1 and the control output end of controller connect；
The first end of the first resistor R1 is connected to the pole G of the first metal-oxide-semiconductor Q1；The second termination of the first resistor R1
Ground；The first end of the first resistor R1 is connected to the pole G of the second metal-oxide-semiconductor Q2；
The first end of the second resistance R2 is connected to the pole D of the first metal-oxide-semiconductor Q1, and the second end of the second resistance R2 connects
It is connected to the input terminal of the motor driving chip；
The first end of the 3rd resistor R3 is connected to the pole D of the second metal-oxide-semiconductor Q2, and the second end of the 3rd resistor R3 connects
It is connected to the input terminal of the motor driving chip；
The first end of the 4th resistance R4 is grounded, and the second end of the 4th resistance R4 is connected to the defeated of the motor driving chip
Enter end；
The first end of the 5th resistance R5 is grounded, and the second end of the 5th resistance R5 is connected to the motor driving chip
Input terminal.
5. printer according to claim 1, which is characterized in that further include adjusting reference voltage circuit；The adjusting base
The control signal of quasi- voltage resistance circuit and the control output end of controller connect, the output for adjusting reference voltage circuit
End is connect with the motor driving chip；
Then described under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor,
To lock the phase of the stepper motor, specifically:
By adjusting the reference voltage value of the reference voltage control circuit, to obtain scheduled DC current.
6. printer according to claim 5, which is characterized in that the adjusting reference voltage circuit include third metal-oxide-semiconductor Q3,
6th resistance R6, the 7th resistance R7, the 8th resistance R8 and the 9th resistance R9；Wherein:
The first end of the 6th resistance R6 is connected to the voltage output end of motor driving chip, the 6th resistance R6 second end
The electricity of the motor driving chip is then connected to after connecting with the first end of the 7th resistance R7, the first end of the 8th resistance R8
Press input terminal；
The second end of the 9th resistance R9 is grounded；The second end of the 8th resistance R8 is connected to the D of the third metal-oxide-semiconductor Q3
Pole；
The first end of the 9th resistance R9 is connected to the pole G of the third metal-oxide-semiconductor Q3, the second termination of the 9th resistance R9
Ground；
The pole G of the third metal-oxide-semiconductor Q3 and the control output end of controller connect.
7. printer according to claim 1, which is characterized in that the controller passes through with the motor driving chip
I2C interface connection；
Then described under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor,
To lock the phase of the stepper motor, specifically:
It is configured by torque DAC register and feedback oscillator register of the I2C interface to motor driving chip, to pass through
Change the register value of torque DAC register and feedback oscillator register to change driving current feedback quantity, to obtain pre-
Fixed DC current；Wherein, the I2C on the processor is as main equipment.
8. printer according to claim 1, which is characterized in that the controller passes through with the motor driving chip
SPI interface connection；
Then described under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor,
To lock the phase of the stepper motor, specifically:
It is configured by torque DAC register, feedback oscillator register of the SPI interface to motor driving chip, by changing
Become the register value of torque DAC register and feedback oscillator register to change driving current feedback quantity, to be made a reservation for
DC current.
9. a kind of motor phase control method characterized by comprising
Inquire current paper feed print out task state；
When judging currently without paper feed print out task, keep motor driving power supply for the power supply of motor driving chip, and control
The input phase signal of motor driving chip processed is constant, and motor driving chip is made to enter PGC demodulation state；
Under PGC demodulation state, control motor driving chip exports scheduled DC current to the stepper motor, with locking
The phase of the stepper motor.
10. a kind of motor phase control device characterized by comprising
Query unit, for inquiring current paper feed print out task state；
Judging unit, for when judging currently without paper feed print out task, keeping motor driving power supply for motor driving
Chip power supply, and the input phase signal for controlling motor driving chip is constant, and motor driving chip is made to enter PGC demodulation state；
Control unit, under PGC demodulation state, control motor driving chip to be scheduled straight to stepper motor output
Galvanic electricity stream, to lock the phase of the stepper motor.
11. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium includes the calculating of storage
Machine program, wherein equipment where controlling the computer readable storage medium in computer program operation is executed as weighed
Benefit requires motor phase control method described in 9.
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| CN201910100882.1A CN109849536B (en) | 2019-01-31 | 2019-01-31 | Motor phase method, device, storage medium and printer |
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| CN201910100882.1A CN109849536B (en) | 2019-01-31 | 2019-01-31 | Motor phase method, device, storage medium and printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386475A (en) * | 2021-04-30 | 2021-09-14 | 深圳市博思得科技发展有限公司 | Paper feeding precision calibration method and calibration system |
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| CN109849536B (en) | 2022-01-28 |
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