JP2003061372A - Data processor, oscillating type motor drive, data setting method, program, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately control input power to a vibrated-type motor according to fluctuations in power voltage regardless of the conversion accuracy of an AD converter. SOLUTION: There are provided an AD converting means of converting an analog value of the power voltage into a digital value, and a data table in which the duty ratio of a pulse signal corresponding to each digital values of the power voltage is stored, and a digital value ADo obtained by converting prescribed reference analog voltage with the AD converting means is stored in a storage device. A digital value ADn obtained by the conversion with the AD converting means (S1) is corrected (S2) using a digital expected value ADp to be obtained by converting the prescribed reference analog voltage with the AD converting means and the digital value ADo stored in the storage device. With reference to the data table, the duty ratio of the pulse signal corresponding to the digital value ADs corrected by a correcting means is obtained and set to a generating part of the pulse signal (S3).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a data processing device,
Vibration type motor drive device, data setting method, program,
And a storage medium, and in particular, a drive device of a vibration type motor that applies a frequency signal to an electro-mechanical energy conversion element to obtain a driving force, a data setting method applied to the vibration type motor drive device, and the data. The present invention relates to a program for causing a computer to execute the setting method, and a storage medium storing the program.

The above-mentioned vibration type motor driving device is a vibration type motor driving device of a system in which the PWM duty of a driving pulse signal is set according to a power supply voltage, for example.

[0003]

2. Description of the Related Art Conventionally, in a vibration type motor driving device such as a vibration wave motor, as described in Japanese Patent Laid-Open No. 63-154074, a driving AC signal supplied to a piezoelectric element as an electric-mechanical energy conversion element is used. The rotation frequency is controlled by changing the drive frequency.

When such a vibration type motor is used to drive a lens of a camera or the like, the power source is a DC power source such as a battery. In this case, when the battery is exhausted, the power supply voltage drops and the drive voltage of the vibration motor also drops, which affects the drive characteristics of the vibration motor. As a countermeasure for this, a plurality of different drive voltages are provided, and one of them is preset.
One of the three voltages is selected to generate a drive AC signal, the rotation frequency is controlled by changing the drive frequency of the drive AC signal, and the PWM (Puls
There is a method of controlling a rotation speed by setting a pulse width by e Width Modulation) to generate a drive pulse and changing a drive frequency of the drive pulse.

A method of setting the pulse width by PWM according to the fluctuation of the power supply voltage is disclosed in Japanese Patent Laid-Open No. 11-2158.
As described in Japanese Patent Publication No. 55-55, the power supply voltage is detected by the AD converter inside the microcomputer, and the PWM duty (pulse width) of the drive pulse is set according to the detected value. However, the method of setting the pulse width by PWM according to the fluctuation of the power supply voltage has a problem that the conversion accuracy of the AD converter that detects the power supply voltage affects the setting accuracy of the pulse width.

That is, in the AD converter, a digital value is obtained by comparing the converted analog voltage with a plurality of different comparison voltages. Multiple comparison voltages are AD
It is generated by dividing the reference voltage at the converter. Therefore, the digital value conversion accuracy depends on the stability accuracy of the reference voltage of the AD converter.

As a method for improving the digital value conversion accuracy, for example, there is a method disclosed in Japanese Patent Laid-Open No. 243998/1993. According to Japanese Patent Laid-Open No. 5-243998,
A standard analog voltage value is converted into a digital value by an AD converter, and the obtained digital value becomes a desired value.
The reference voltage of the AD converter is adjusted.

[0008]

However, the above method for adjusting the reference voltage of the AD converter requires an AD converter equipped with a device for performing such adjustment. Therefore, even for an AD converter that does not have such a reference voltage adjusting device, there is a demand for an AD converter that can apply the method of setting the pulse width by PWM according to the fluctuation of the power supply voltage. .

The present invention has been made in view of the above problems, and accurately controls the input power to the vibration type motor according to the fluctuation of the power supply voltage without being influenced by the conversion accuracy of the AD converter. It is an object of the present invention to provide a data processing device, a vibration type motor driving device, a data setting method, a program, and a storage medium that can be performed.

[0010]

In order to achieve the above object, according to the invention of claim 1, an AD conversion means for converting an analog value of a voltage into a digital value, and a predetermined reference analog voltage for the AD are provided. A storage unit that stores the first digital value obtained by conversion by the conversion unit in a storage device, a data table that stores predetermined data corresponding to each digital value of the voltage, and the AD conversion unit that converts the data. The obtained second digital value is corrected using a digital expected value that should be obtained by converting the predetermined reference analog voltage by the AD conversion means and the first digital value stored in the storage device. A setting that acquires predetermined data corresponding to the second digital value corrected by the correction unit by referring to the correction unit and the data table, and sets the data in a predetermined device. The data processing apparatus characterized by having a step is provided.

According to the second aspect of the invention, AD conversion means for converting an analog value of the voltage into a digital value,
A storage unit that stores a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion unit in a storage device; and a storage unit that can be obtained by converting the predetermined reference analog voltage by the AD conversion unit A plurality of corresponding digital values, each of which stores predetermined data corresponding to each voltage digital value, and a plurality of the data tables stored in the storage device. The selecting means for selecting the data table corresponding to the first digital value and the second digital value obtained by the conversion by the AD converting means with reference to the data table selected by the selecting means. There is provided a data processing device, comprising: setting means for acquiring corresponding predetermined data and setting the predetermined data in a predetermined device.

According to the third aspect of the present invention, a vibration type motor that applies a frequency signal to the electromechanical energy conversion element to obtain a driving force, and the frequency signal is generated according to a pulse signal. A drive circuit, an AD conversion unit that converts an analog value of a power supply voltage into a digital value, and a storage unit that stores a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion unit in a storage device. When,
A data table storing the duty ratio of the pulse signal corresponding to each digital value of the power supply voltage, and a second digital value obtained by conversion by the AD conversion means are converted into the predetermined reference analog voltage. Correction means for correcting using the digital expected value to be obtained by conversion by the AD conversion means and the first digital value stored in the storage device, and correction by the correction means with reference to the data table And a setting unit configured to acquire a duty ratio of the pulse signal corresponding to the generated second digital value and set the duty ratio in the pulse signal generation unit.

Further, according to the invention described in claim 4, a vibration type motor for obtaining a driving force by applying a frequency signal to the electro-mechanical energy conversion element, and the frequency signal is generated according to a pulse signal. A drive circuit, an AD conversion unit that converts an analog value of a power supply voltage into a digital value, and a storage unit that stores a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion unit in a storage device. And a plurality of pulse signals corresponding to digital values that may be obtained by converting the predetermined reference analog voltage by the AD conversion means, each of which corresponds to each digital value of the power supply voltage. A data table storing a duty ratio and a data table corresponding to the first digital value stored in the storage device from among the plurality of data tables. And selection means for selecting, by referring to the data table selected by said selecting means,
Acquiring the duty ratio of the pulse signal corresponding to the second digital value obtained by conversion by the AD conversion means,
There is provided a vibration type motor drive device comprising: a setting unit that sets a pulse signal generation unit.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a circuit diagram showing a configuration of a first embodiment of a vibration type motor driving device according to the present invention.

In FIG. 1, reference numeral 1 is a control circuit, which is a microcomputer (CPU) 2, an oscillation circuit (VCO) 3, a phase comparison circuit 4, comparator circuits 5 and 6, a vibration type motor (USM) drive logic circuit 7, Data storage (EEP
ROM) 8.

A microcomputer (CPU) 2 controls all operations of the control circuit 1. Oscillation circuit (VC
O) 3 is turned on / off by the output signal VCON of the CPU2.
It is turned off and the oscillation frequency is changed by the output signal VCODAC. The oscillation frequency of the oscillator circuit (VCO) 3 is the signal VC
A current determined by an internal setting voltage set according to ODAC (8 bits) and the resistance value of the resistor 9 is applied to the capacitor 10
It is determined by charging and discharging. This oscillation frequency is 4 times the frequency 4 times the drive frequency (F) of the vibration type motor.
It is F. An example of the relationship between the signal VCODAC and the oscillation frequency is shown below.

VCODAC = 00H → 4F = 160 kHz VCODAC = 32H → 4F = 156 kHz VCODAC = FFH → 4F = 139.6 kHz By changing the resistance value of the resistor 9, the variation of the oscillation frequency caused by the circuit variation is corrected. be able to.

The oscillation frequency 4F output from the oscillator circuit (VCO) 3 is input to the USM drive logic circuit 7. U
The SM drive logic circuit 7 outputs the output signal U from the CPU 2.
The motor driver 11 outputs a drive pulse signal according to SMON.
Output to. That is, the USM drive logic circuit 7 is
Output frequency (4F) of oscillator circuit (VCO) 3 and CPU 2
The four-phase pulse signals A, B, -A, -B are generated based on the output signals DIR and PWM from. The generated four-phase pulse signals are respectively shifted by 90 degrees or -90 degrees, and the phase relationship thereof is changed by the signal DIR from 90 degrees to -90 degrees or vice versa. Thus, the rotation direction is operated. The frequency of the 4-phase pulse signal is F, which is 1/4 of 4F.

Further, in the CPU 2, the voltage of the battery 30 is changed to C
It is detected by the internal AD converter circuit (not shown) of PU2, the pulse width is determined according to the detected value, and the signal PWM
To the USM drive logic circuit 7 to change the pulse width (duty) of the 4-phase pulse signal. However, the pulse width is set so that the output voltage of the motor driver 11 is always 3.3V for each detection voltage of the battery 30.

FIG. 2 shows four-phase pulse signals A, B, -A, -B.
It is a figure which shows an example.

In FIG. 2, the solid line represents the PWM duty of 50.
%, And the broken line represents the PWM duty of 25
It is a signal when it is set to%.

FIG. 3 is a diagram showing the drive characteristics of the vibration type motor when the drive frequency is fixed.

In FIG. 3, each horizontal axis represents the power supply voltage (voltage of the battery 30), and the vertical axis (A) shows the current value I flowing through the transistor (not shown) in the output stage in the motor driver 11.
out, (B) shows the PWM duty, and (C) shows the rotation speed of the vibration type motor. In each characteristic, the broken line shows the characteristic when the PWM duty is 50%, and the solid line sets the PWM duty so that the output voltage of the motor driver 11 is always 3.3 V even if the power supply voltage changes. It is a characteristic of the case. The PWM setting method according to the power supply voltage will be described in detail later.

The motor driver 11 power-amplifies the four-phase pulse signals A, B, -A, -B, and through the coils 12, 13 and capacitors 14, 15 the piezoelectric element 16 of the vibration type motor.
Output to. The capacitor 17 is for adjusting the phase relationship between the S phase and the A phase. The S phase is the phase of the detection signal output from the sensor that detects the vibration state of the piezoelectric element 16. The output of the battery 30 is supplied to the motor driver 11.

Next, the operation of the phase comparison circuit 4 will be described.

The phase comparison circuit 4 includes a comparator circuit 5,
The counter circuit includes a counter circuit that counts the period in which the output of 6 changes and a comparison circuit that compares the count value with the comparison value set by the CPU 2. The S-phase sensor output signal and the A-phase drive signal are supplied to the comparator circuits 5 and 6, respectively.
It is input via a voltage dividing / bandpass filter circuit composed of resistors 18 to 26 and capacitors 27 to 29.
Therefore, the phase comparison circuit 4 detects the time difference corresponding to the deviation between the S-phase sensor output signal and the A-phase drive signal as the count value, and when the count value reaches the above-mentioned comparison value, P
The LE signal is output to the CPU 2.

The CPU 2 controls the rotation of the vibration type motor by changing the value of the signal VCODAC based on the PLE signal and the output of a rotation state (rotation speed, rotation angle) detector (not shown).

Next, a method of setting the PWM according to the above-mentioned power supply voltage will be described in detail.

First, for data correction to be performed later,
The AD conversion value at the time of inputting a predetermined voltage is stored. Specifically, instead of the voltage of the battery 30, a predetermined voltage (for example, 5 V) is input in advance from the outside, and a digital value obtained by AD-converting the voltage is set as AD0, and a data storage unit (for example, a nonvolatile memory) ( EEPROM 8). Where A
When the D conversion is ideal, this digital value A
The value that should be indicated by D0 is the expected value ADp. Digital value A
D0 actually varies due to fluctuations in the reference voltage of the internal AD converter circuit of the CPU 2 and the like, and the digital value AD0 does not match the expected value ADp.

Next, PWM is started at the start of driving the vibration type motor.
Set the duty. This will be described with reference to FIG.

FIG. 4 is a flowchart showing the procedure of the PWM duty setting process executed by the CPU 2.
The steps will be described below.

Step S1: The voltage of the battery 30 is AD-converted, and the obtained digital value is set to ADn.

Step S2: This digital value ADn is
The digital value AD0 and the AD conversion expected value AD stored in the data storage unit (EEPROM) 8 when the above-mentioned predetermined voltage is input.
Using p and p, correction is performed based on the following equation to obtain a correction value ADs.

ADs = ADn × ADp / AD0 Step S3: Referring to the PWM duty data table, the PWM duty data PWMs corresponding to the correction value ADs is read out and set in the USM drive logic circuit 7. The PWM duty data table is created in advance and is a table showing the correspondence between the digital value of the power supply voltage and the PWM duty. This PWM
The duty data is set in advance so that the output voltage of the motor driver 11 is always 3.3 V, for example, even when the power supply voltage changes.

As described above, the power supply voltage AD value is corrected and calculated using the AD conversion value AD0 at the time of inputting the reference predetermined voltage and the AD conversion expected value ADp, with respect to each preset power supply voltage AD value. The PWM duty corresponding to the corrected power supply voltage AD value is read out with reference to the PWM duty data table and set in the USM drive logic circuit 7. As a result, the input power to the vibration motor can be accurately controlled according to the fluctuation of the power supply voltage without being affected by the conversion accuracy of the AD converter.

In this embodiment, only one AD conversion value at the time of inputting a predetermined voltage is stored to correct the power supply voltage AD value for data correction, but instead of this, a different value is used. It is also possible to input two predetermined voltages and store two AD conversion values at that time, thereby compensating for the gain difference and offset difference of the AD reference voltage.

(Second Embodiment) Next, a second embodiment will be described.

The configuration of the second embodiment is basically the first.
Since the configuration is the same as that of the first embodiment, the configuration of the first embodiment will be used in the description of the second embodiment.

The second embodiment is different from the first embodiment in the method of setting the PWM according to the power supply voltage, and has a plurality of PWM duty values corresponding to a plurality of AD conversion values AD0 when a predetermined voltage is input. A data table is provided, and a data table corresponding to the detected AD conversion value AD0 is selected,
The PWM duty corresponding to the power supply voltage ADn value is read out by referring to the data table and set in the USM drive logic circuit 7.

FIG. 5 shows a CPU according to the second embodiment.
6 is a flowchart showing a procedure of a PWM duty setting process executed in 2.

First, the AD conversion value when a predetermined voltage is input is stored in advance. Specifically, instead of the voltage of the battery 30, a predetermined voltage (for example, 5 V) is input in advance from the outside, and a digital value obtained by AD-converting the voltage is set as AD0, and a data storage unit (for example, a nonvolatile memory) ( EEPROM)
Store in 8.

Step S11: The voltage of the battery 30 is AD-converted, and the obtained digital value is set to ADn.

Step S12: Data storage unit (EEPR
The above-mentioned AD conversion value AD0 stored in the OM) 8 is read out, and a PWM duty data table corresponding to the read out AD conversion value AD0 is selected from among a plurality of PWM duty data tables prepared in advance. .

As described above, the PWM duty data is set in advance so that the output voltage of the motor driver 11 is always 3.3 V, for example, even if the power supply voltage changes. The PWM duty described in the data table is the expected AD conversion value AD when the above-mentioned predetermined voltage is input.
The PWM duty is previously corrected based on the difference between p and the actual AD conversion value AD0.

Step S13: Referring to the selected data table, the PWM duty data PWMs corresponding to the digital value ADn is read out and set in the USM drive logic circuit 7.

As described above, a data table of a plurality of PWM duties for each AD conversion value AD0 value at the time of inputting a predetermined voltage is provided, and a data table corresponding to the detected value AD0 at the time of inputting a predetermined voltage is selected. See
The PWM duty data PWMs corresponding to the power supply voltage AD value ADn is read out and set in the USM drive logic circuit 7. As a result, the input power to the vibration type motor can be accurately controlled according to the fluctuation of the power supply voltage without being affected by the conversion accuracy of the AD converter, and the correction value is different from that of the first embodiment. The calculation process for obtaining ADs can be omitted.

(Other Embodiments) The vibration motor driving device in each of the above-described embodiments may be configured by hardware or software, and the function of the vibration motor driving device may be implemented by software. In the case of implementation, a storage medium storing a program code of software that implements the functions of the above-described embodiments is supplied to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the storage medium. It goes without saying that the present invention can also be achieved by reading and executing the program code stored in.

In this case, the program code itself read from the storage medium realizes the function of each of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. .

As a storage medium for supplying the program code, for example, a floppy (registered trademark) disk,
Hard disk, optical disk, magneto-optical disk, CD-
ROM, CD-R, magnetic tape, non-volatile memory card, ROM, etc. can be used.

Further, not only the functions of the above-described respective embodiments are realized by executing the program code read by the computer, but also the OS and the like running on the computer based on the instructions of the program code. Does some or all of the actual processing, and the functions of the above-described embodiments are realized by the processing,
Needless to say, it is included in the present invention.

Further, after the program code read from the storage medium is written in the memory provided in the function expansion board inserted into the computer or the function expansion unit connected to the computer, based on the instruction of the program code, It is needless to say that the present invention also includes a case where the CPU or the like included in the function expansion board or the function expansion unit performs a part or all of the actual processing and the processing realizes the functions of the above-described embodiments. Yes.

[0053]

As described above in detail, according to the present invention, the AD conversion means for converting the analog value of the power supply voltage into the digital value and the duty ratio of the pulse signal corresponding to each digital value of the power supply voltage are set. A first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means, stored in a storage device, and converted by the AD conversion means. The digital value of 2 is corrected using the digital expected value that should be obtained by converting the predetermined reference analog voltage by the AD conversion means and the first digital value stored in the storage device, and the data By referring to the table, the duty ratio of the pulse signal corresponding to the second digital value corrected by the correction means is acquired and set in the pulse signal generator.

Further, a plurality of AD conversion means for converting an analog value of the power supply voltage into a digital value and a plurality of digital values which may be obtained by converting a predetermined reference analog voltage by the AD conversion means are provided. A data table that stores the duty ratio of the pulse signal corresponding to each digital value of the power supply voltage, and is obtained by converting the predetermined reference analog voltage by the AD conversion means. A first digital value is stored in a storage device, a data table corresponding to the first digital value stored in the storage device is selected from the plurality of data tables, and the selected data table is stored. With reference to the above, the duty ratio of the pulse signal corresponding to the second digital value obtained by the conversion by the AD conversion means is acquired, and the pulse signal is generated in the pulse signal generation unit. A constant.

As a result, the input power to the vibration type motor can be accurately controlled according to the fluctuation of the power supply voltage without being affected by the conversion accuracy of the AD converter.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a configuration of a first embodiment of a vibration type motor driving device according to the present invention.

FIG. 2 is a diagram showing an example of four-phase pulse signals A, B, −A, and −B.

FIG. 3 is a diagram showing drive characteristics of a vibration type motor when a drive frequency is fixed.

FIG. 4 is a flowchart showing a procedure of a PWM duty setting process executed by the CPU according to the first embodiment.

FIG. 5 is a flowchart showing a procedure of a PWM duty setting process executed by a CPU in the second embodiment.

[Explanation of symbols]

1 Control Circuit 2 Microcomputer (CPU, AD Conversion Means, Storage Means, Correction Means, Setting Means, Selection Means) 3 Oscillation Circuit (VCO) 4 Phase Comparison Circuit 5, 6 Comparator Circuit 7 Vibration Motor (USM) Drive Logic Circuit (Predetermined device, pulse signal generation unit) 8 Data storage unit (EEPROM, storage device, data table) 11 Motor driver (drive circuit) 16 Piezoelectric element (electrical-mechanical energy conversion element) in vibration type motor 30 Battery

Claims (16)

[Claims] 1. An AD conversion means for converting an analog value of a voltage into a digital value, and a storage means for storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device. A data table storing predetermined data corresponding to each digital value of the voltage, and a second digital value obtained by conversion by the AD conversion means, and the predetermined reference analog voltage by the AD conversion means. A correction unit that corrects by using the digital expected value that should be obtained by conversion and the first digital value stored in the storage device, and a second unit that is corrected by the correction unit with reference to the data table. And a setting unit configured to acquire predetermined data corresponding to the digital value of, and set the predetermined data in a predetermined device. 2. An AD conversion means for converting an analog value of a voltage into a digital value, and a storage means for storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device. And a plurality of predetermined reference analog voltages corresponding to a plurality of digital values that may be obtained by the AD conversion means, each of which stores predetermined data corresponding to each digital value of the voltage. And a selecting means for selecting a data table corresponding to the first digital value stored in the storage device from the plurality of data tables, and a data table selected by the selecting means. Then, the second obtained by conversion by the AD conversion means
And a setting unit configured to acquire predetermined data corresponding to the digital value of, and set the predetermined data in a predetermined device. 3. A vibration type motor for obtaining a driving force by applying a frequency signal to an electro-mechanical energy conversion element, a drive circuit for generating the frequency signal according to a pulse signal, and an analog value of a power supply voltage. AD conversion means for converting to a digital value, storage means for storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device, and corresponding to each digital value of the power supply voltage The data table storing the duty ratio of the pulse signal and the second digital value obtained by conversion by the AD conversion means are obtained by converting the predetermined reference analog voltage by the AD conversion means. Correction means for correcting using the expected digital value to be performed and the first digital value stored in the storage device, and referring to the data table,
A vibration type motor drive device, comprising: a setting unit configured to acquire a duty ratio of a pulse signal corresponding to the second digital value corrected by the correction unit and set the duty ratio in a pulse signal generation unit. 4. A vibration type motor that applies a frequency signal to an electro-mechanical energy conversion element to obtain a driving force, a drive circuit that generates the frequency signal according to a pulse signal, and an analog value of a power supply voltage. AD conversion means for converting to a digital value, storage means for storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device, and the predetermined reference analog voltage A plurality of data tables are provided corresponding to a plurality of digital values that may be obtained by conversion by the AD conversion means, each storing a duty ratio of the pulse signal corresponding to each digital value of the power supply voltage; Selecting means for selecting a data table corresponding to the first digital value stored in the storage device from among the plurality of data tables; A second table obtained by conversion by the AD conversion means with reference to the data table selected by the means.
And a setting unit configured to acquire the duty ratio of the pulse signal corresponding to the digital value of 1. and set the duty ratio in the pulse signal generation unit. 5. A data setting method applied to a data processing device, comprising AD conversion means for converting an analog value of a voltage into a digital value, and a data table storing predetermined data corresponding to each digital value of the voltage. In the step of storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device, and a second digital value obtained by conversion by the AD conversion means. A correction step for correcting the predetermined reference analog voltage using the digital expected value that should be obtained by converting the predetermined reference analog voltage by the AD conversion means and the first digital value stored in the storage device; and the data table. Setting for obtaining predetermined data corresponding to the second digital value corrected by the correction step and setting it in a predetermined device with reference to And a step of setting data. 6. An AD conversion means for converting an analog value of a voltage into a digital value, and a predetermined reference analog voltage for the AD.
A data processing device comprising: a plurality of data tables corresponding to a plurality of digital values that may be obtained by conversion by a conversion means, each of which has a data table storing predetermined data corresponding to each digital value of a voltage. In the applied data setting method, a storage step of storing a first digital value obtained by converting the predetermined reference analog voltage by the AD conversion means in a storage device; and from the plurality of data tables, A selection step of selecting a data table corresponding to the first digital value stored in the storage device, and a data table selected by the selection step are referred to and obtained by conversion by the AD conversion means. The predetermined data corresponding to the second digital value,
And a setting step for setting in a predetermined device. 7. A vibration type motor for applying a frequency signal to an electro-mechanical energy conversion element to obtain a driving force, a drive circuit for generating the frequency signal according to a pulse signal, and an analog value of a power supply voltage. A data setting method applied to a vibration type motor drive device, comprising: an AD conversion means for converting into a digital value; and a data table storing a duty ratio of the pulse signal corresponding to each digital value of a power supply voltage, A storage step of storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device; and a second digital value obtained by conversion by the AD conversion means, A digital expected value to be obtained by converting the predetermined reference analog voltage by the AD conversion means and the first digital value stored in the storage device. And a correction step for performing the correction, and a setting for obtaining the duty ratio of the pulse signal corresponding to the second digital value corrected by the correction step with reference to the data table and setting it in the pulse signal generation unit. And a step of setting data. 8. A vibration type motor for obtaining a driving force by applying a frequency signal to an electro-mechanical energy conversion element, a drive circuit for generating the frequency signal according to a pulse signal, and an analog value of a power supply voltage. A plurality of AD conversion means for converting into a digital value and a plurality of digital values corresponding to a plurality of digital values which may be obtained by converting a predetermined reference analog voltage by the AD conversion means are provided. And a data table storing the duty ratio of the pulse signal corresponding to the above, the data setting method applied to the vibration type motor drive device, wherein the predetermined reference analog voltage is converted by the AD conversion means and obtained. A storage step of storing the stored first digital value in a storage device; and a step of storing the first digital value stored in the storage device from the plurality of data tables. A selection step of selecting a data table corresponding to a digital value, and referring to the data table selected in the selection step, a pulse signal corresponding to a second digital value obtained by conversion by the AD conversion means is obtained. And a setting step of acquiring a duty ratio and setting it in a pulse signal generation unit. 9. A data setting method applied to a data processing device, comprising AD conversion means for converting an analog value of a voltage into a digital value, and a data table storing predetermined data corresponding to each digital value of the voltage. A storage step of storing a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means in a storage device in the program for causing a computer to execute; The second digital value obtained by conversion by the AD conversion means and the digital expected value to be obtained by conversion of the predetermined reference analog voltage by the AD conversion means, and the first digital value stored in the storage device. A correction step of making a correction using the digital value, and a second correction made by the correction step with reference to the data table. Acquires predetermined data corresponding to the digital value, the program characterized by having a setting step of setting a predetermined equipment. 10. A / D conversion means for converting an analog value of a voltage into a digital value, and a predetermined reference analog voltage as the A
A data processing device provided with a plurality of data tables corresponding to a plurality of digital values that may be obtained by conversion by the D conversion means, each storing a predetermined data corresponding to each digital value of the voltage. In a program for causing a computer to execute the data setting method applied to, the data setting method stores a first digital value obtained by converting the predetermined reference analog voltage by the AD conversion unit. A storage step of storing the data table in the storage device, a selection step of selecting a data table corresponding to the first digital value stored in the storage device from the plurality of data tables, and data selected by the selection step. By referring to the table, a predetermined value corresponding to the second digital value obtained by conversion by the AD conversion means is determined. Get the data,
A program having a setting step for setting in a predetermined device. 11. A vibrating motor that obtains a driving force by applying a frequency signal to an electro-mechanical energy conversion element, and a drive circuit that generates the frequency signal according to a pulse signal.
The present invention is applied to a vibration type motor driving device provided with AD conversion means for converting an analog value of a power supply voltage into a digital value and a data table storing a duty ratio of the pulse signal corresponding to each digital value of the power supply voltage. A program for causing a computer to execute the data setting method according to claim 1, wherein the data setting method stores in a storage device a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means. Step, and a second digital value obtained by conversion by the AD conversion means, and a digital expected value to be obtained by conversion of the predetermined reference analog voltage by the AD conversion means, and stored in the storage device. A correction step of correcting using the first digital value, and referring to the data table, the correction step And a setting step of acquiring the duty ratio of the pulse signal corresponding to the second digital value corrected by the pulse correction and setting the duty ratio in the pulse signal generation unit. 12. A vibrating motor that applies a frequency signal to an electro-mechanical energy conversion element to obtain a driving force, and a drive circuit that generates the frequency signal according to a pulse signal.
A plurality of AD conversion means for converting an analog value of the power supply voltage into a digital value and a plurality of digital values which may be obtained by converting a predetermined reference analog voltage by the AD conversion means are provided, each of which is provided. A program for causing a computer to execute a data setting method applied to a vibration type motor drive device, comprising: a data table storing a duty ratio of the pulse signal corresponding to each digital value of a power supply voltage; A data setting method, a storage step of storing a first digital value obtained by converting the predetermined reference analog voltage by the AD conversion means in a storage device; and a storage device selected from the plurality of data tables. A selection step of selecting a data table corresponding to the first digital value stored in The duty ratio of the pulse signal corresponding to the second digital value obtained by conversion by the AD conversion means is acquired by referring to the selected data table, and is set in the pulse signal generator. A program having a setting step. 13. A data setting method applied to a data processing device, comprising: an AD conversion means for converting an analog value of a voltage into a digital value; and a data table storing predetermined data corresponding to each digital value of the voltage. In a computer-readable storage medium that stores as a program, the data setting method stores in a storage device a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means. Step, and a second digital value obtained by conversion by the AD conversion means, and a digital expected value to be obtained by conversion of the predetermined reference analog voltage by the AD conversion means, and stored in the storage device. A correction step of performing correction using the first digital value, and referring to the data table, the correction step Storage medium Tsu acquires predetermined data corresponding to the second digital value corrected by the flop, and having a setting step of setting a predetermined equipment. 14. A / D conversion means for converting an analog value of a voltage into a digital value, and a predetermined reference analog voltage as the A
A data processing device provided with a plurality of data tables corresponding to a plurality of digital values that may be obtained by conversion by the D conversion means, each storing a predetermined data corresponding to each digital value of the voltage. A computer-readable storage medium storing a data setting method applied to a computer as a program, wherein the data setting method is a first digital signal obtained by converting the predetermined reference analog voltage by the AD conversion means. A storage step of storing a value in a storage device; a selection step of selecting a data table corresponding to the first digital value stored in the storage device from the plurality of data tables; The second data obtained by conversion by the AD conversion means with reference to the selected data table. Obtain the predetermined data corresponding to the digital value,
A storage medium having a setting step for setting in a predetermined device. 15. A vibrating motor that applies a frequency signal to an electro-mechanical energy conversion element to obtain a driving force, and a drive circuit that generates the frequency signal in response to a pulse signal.
The present invention is applied to a vibration type motor driving device provided with AD conversion means for converting an analog value of a power supply voltage into a digital value and a data table storing a duty ratio of the pulse signal corresponding to each digital value of the power supply voltage. In a computer-readable storage medium storing a data setting method as a program, the data setting method stores a first digital value obtained by converting a predetermined reference analog voltage by the AD conversion means. A storage step of storing the second expected digital value obtained by converting the predetermined reference analog voltage by the AD converting means, and a second expected digital value obtained by the AD converting means, and the storage device. A correction step of correcting using the first digital value stored in, and referring to the data table. And a setting step of acquiring the duty ratio of the pulse signal corresponding to the second digital value corrected by the correction step and setting the duty ratio in the pulse signal generation unit. 16. A vibration type motor that applies a frequency signal to an electro-mechanical energy conversion element to obtain a driving force, and a drive circuit that generates the frequency signal according to a pulse signal.
A plurality of AD conversion means for converting an analog value of the power supply voltage into a digital value and a plurality of digital values which may be obtained by converting a predetermined reference analog voltage by the AD conversion means are provided, each of which is provided. A computer-readable memory that stores, as a program, a data setting method applied to a vibration-type motor drive device that includes a data table that stores the duty ratio of the pulse signal corresponding to each digital value of the power supply voltage. In the medium, the data setting method includes a storage step of storing a first digital value obtained by converting the predetermined reference analog voltage by the AD conversion means in a storage device; A selecting step of selecting a data table corresponding to the first digital value stored in the storage device A pulse signal generation unit that obtains the duty ratio of the pulse signal corresponding to the second digital value obtained by conversion by the AD conversion means with reference to the data table selected in the selection step. And a setting step for setting the storage medium.