JPH0257292U - - Google Patents
Info
- Publication number
- JPH0257292U JPH0257292U JP13597488U JP13597488U JPH0257292U JP H0257292 U JPH0257292 U JP H0257292U JP 13597488 U JP13597488 U JP 13597488U JP 13597488 U JP13597488 U JP 13597488U JP H0257292 U JPH0257292 U JP H0257292U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic actuator
- time constant
- constant element
- secondary coil
- oscillation circuit
- 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.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図、第２図は同実施例の温度―回転数特性を
示す特性図、第３図は圧電体の振幅と駆動電流の
周波数との関係を示す特性図である。
１……発振回路、２……超音波アクチエータ、
３……パルス発生回路、４……スイツチング回路
、５，６……トランス。
Fig. 1 is a block diagram showing the configuration of an embodiment of this invention, Fig. 2 is a characteristic diagram showing the temperature-rotation speed characteristic of the same embodiment, and Fig. 3 is a diagram showing the relationship between the amplitude of the piezoelectric body and the frequency of the drive current. It is a characteristic diagram showing a relationship. 1...Oscillation circuit, 2...Ultrasonic actuator,
3... Pulse generation circuit, 4... Switching circuit, 5, 6... Transformer.
Claims (1)
るスイツチ手段と、このスイツチ手段によつて１
次コイルへの給電が制御され２次コイルの出力が
超音波アクチエータの電極へ供給されるトランス
とを有する超音波アクチエータの駆動回路におい
て、前記発振回路の周波数を決める時定数素子に
前記超音波アクチエータの温度―回転数特性に対
応する特性のものを使用し、かつ、この時定数素
子を前記超音波アクチエータの熱が伝導される部
分に取り付けたことを特徴とする超音波アクチエ
ータの駆動回路。 a switch means for turning on/off in accordance with the output frequency of the oscillation circuit;
In an ultrasonic actuator drive circuit including a transformer in which power supply to a secondary coil is controlled and the output of the secondary coil is supplied to an electrode of the ultrasonic actuator, a time constant element that determines the frequency of the oscillation circuit is connected to the ultrasonic actuator. A driving circuit for an ultrasonic actuator, characterized in that the time constant element is attached to a part of the ultrasonic actuator through which heat is conducted, using a time constant element having characteristics corresponding to the temperature-rotational speed characteristic of the ultrasonic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13597488U JPH0257292U (en) | 1988-10-18 | 1988-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13597488U JPH0257292U (en) | 1988-10-18 | 1988-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0257292U true JPH0257292U (en) | 1990-04-25 |
Family
ID=31396055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13597488U Pending JPH0257292U (en) | 1988-10-18 | 1988-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0257292U (en) |
-
1988
- 1988-10-18 JP JP13597488U patent/JPH0257292U/ja active Pending