JP2008079395A5 - - Google Patents
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- JP2008079395A5 JP2008079395A5 JP2006254200A JP2006254200A JP2008079395A5 JP 2008079395 A5 JP2008079395 A5 JP 2008079395A5 JP 2006254200 A JP2006254200 A JP 2006254200A JP 2006254200 A JP2006254200 A JP 2006254200A JP 2008079395 A5 JP2008079395 A5 JP 2008079395A5
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- JP
- Japan
- Prior art keywords
- vibration actuator
- drive
- drive control
- control device
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Claims (7)
前記振動アクチュエータの駆動速度を検出する速度検出部と、
前記オン状態時の前記速度検出部の検出結果に基づいて後のオン状態時に前記駆動信号の周波数を変更する周波数変更部と、
前記振動アクチュエータの駆動量に応じてパルス信号を出力するパルス信号出力部と、
を具備し、
前記駆動信号制御部は、前記オン状態時に前記パルス信号出力部から出力されるパルス信号数が所定数になったら、前記オフ状態に切換えることを特徴とする振動アクチュエータの駆動制御装置。 A drive signal control unit for controlling switching between an on state for outputting a drive signal of a frequency in the vibration actuator and an off state for stopping the output;
A speed detector for detecting a driving speed of the vibration actuator;
A frequency changing unit that changes the frequency of the drive signal in a later ON state based on the detection result of the speed detection unit in the ON state;
A pulse signal output unit that outputs a pulse signal according to the drive amount of the vibration actuator;
Comprising
The drive control device for a vibration actuator, wherein the drive signal control unit switches to the off state when the number of pulse signals output from the pulse signal output unit in the on state reaches a predetermined number .
前記駆動信号の周波数は、前記振動アクチュエータの安定動作領域内での駆動速度に対応する周波数であることを特徴とする振動アクチュエータの駆動制御装置。 In the drive control apparatus of the vibration actuator according to claim 1,
The drive control device for a vibration actuator, wherein the frequency of the drive signal is a frequency corresponding to a drive speed within a stable operation region of the vibration actuator.
前記駆動信号制御部は、前記オン状態とするタイミングを所定の周期に同期させていることを特徴とする振動アクチュエータの駆動制御装置。 In the drive control apparatus of the vibration actuator according to claim 1 or 2,
The drive control device for a vibration actuator, wherein the drive signal control unit synchronizes the timing of turning on with a predetermined cycle.
前記駆動信号制御部は、前記オフ状態とするタイミングを所定の周期に同期させていることを特徴とする振動アクチュエータの駆動制御装置。 In the drive control apparatus of the vibration actuator according to claim 3,
The drive control device for a vibration actuator, wherein the drive signal control unit synchronizes the timing of turning off with a predetermined cycle.
前記速度検出部は、前記振動アクチュエータの駆動量に応じてパルス信号を出力するパルス信号出力部を備え、
前記オン状態時に前記パルス信号出力部から出力されるパルス信号数から前記振動アクチュエータの駆動速度を検出することを特徴とする振動アクチュエータの駆動制御装置。 In the drive control apparatus of the vibration actuator of any one of Claim 1 to 4,
The speed detection unit includes a pulse signal output unit that outputs a pulse signal according to the driving amount of the vibration actuator,
A drive control device for a vibration actuator, wherein the drive speed of the vibration actuator is detected from the number of pulse signals output from the pulse signal output unit in the on state.
前記駆動制御装置により駆動制御される振動アクチュエータと、
前記振動アクチュエータにより駆動されるレンズと、
を備えたことを特徴とするレンズ鏡筒。 A drive control device for a vibration actuator according to any one of claims 1 to 5 ,
A vibration actuator driven and controlled by the drive control device;
A lens driven by the vibration actuator;
A lens barrel characterized by comprising:
前記駆動制御装置により駆動制御される振動アクチュエータと、
前記振動アクチュエータにより駆動されるレンズと、
を備えたことを特徴とするカメラ。 A drive control device for a vibration actuator according to any one of claims 1 to 5 ,
A vibration actuator driven and controlled by the drive control device;
A lens driven by the vibration actuator;
A camera characterized by comprising
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006254200A JP2008079395A (en) | 2006-09-20 | 2006-09-20 | Drive controller of vibration actuator, lens barrel and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006254200A JP2008079395A (en) | 2006-09-20 | 2006-09-20 | Drive controller of vibration actuator, lens barrel and camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008079395A JP2008079395A (en) | 2008-04-03 |
| JP2008079395A5 true JP2008079395A5 (en) | 2009-11-05 |
Family
ID=39350889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006254200A Pending JP2008079395A (en) | 2006-09-20 | 2006-09-20 | Drive controller of vibration actuator, lens barrel and camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2008079395A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5291997B2 (en) | 2008-06-25 | 2013-09-18 | ルネサスエレクトロニクス株式会社 | Ultrasonic motor controller |
| JP2010283614A (en) | 2009-06-04 | 2010-12-16 | Sekyurion Nijuyon Kk | Camera control apparatus, photographing direction control method, and camera device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3044751B2 (en) * | 1990-06-27 | 2000-05-22 | セイコーエプソン株式会社 | Drive control device for wave step motor |
| JP4482986B2 (en) * | 1999-12-01 | 2010-06-16 | 株式会社ニコン | Vibration motor and driving method thereof |
| JP4123808B2 (en) * | 2002-04-05 | 2008-07-23 | 株式会社ニコン | Control device for vibration actuator |
| JP4595453B2 (en) * | 2004-09-07 | 2010-12-08 | セイコーエプソン株式会社 | Ultrasonic motor drive circuit and actuator |
-
2006
- 2006-09-20 JP JP2006254200A patent/JP2008079395A/en active Pending
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