JPH01163478U - - Google Patents
Info
- Publication number
- JPH01163478U JPH01163478U JP5532088U JP5532088U JPH01163478U JP H01163478 U JPH01163478 U JP H01163478U JP 5532088 U JP5532088 U JP 5532088U JP 5532088 U JP5532088 U JP 5532088U JP H01163478 U JPH01163478 U JP H01163478U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- oscillation
- feedback circuits
- oscillation circuit
- feedback
- 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 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
第１図は本考案の１実施例のマルチ振動子の駆
動回路のブロツク図、第２図は第１図の駆動回路
で発生する周波数の波形図である。
１……発振回路、２……ドライバ、３１，…，
３ｎ……振動子、４１，４２，…，４ｎ……帰還
回路、５……スイツチング回路、６……コントロ
ール回路。
FIG. 1 is a block diagram of a multi-oscillator drive circuit according to an embodiment of the present invention, and FIG. 2 is a waveform diagram of frequencies generated in the drive circuit of FIG. 1...Oscillation circuit, 2...Driver, 3 1 ,...,
3n... vibrator, 4 1 , 4 2 ,..., 4n... feedback circuit, 5... switching circuit, 6... control circuit.
Claims (1)
共振周波数を有する少なくとも１つの振動子と、
前記発振回路を２つ以上の周波数で発振するため
に、前記発振回路の帰還ループの特性を変更する
複数の帰還回路と、該帰還回路のいずれか１つを
選択するスイツチング回路とからなるマルチ振動
子の駆動回路。 ２ 前記帰還回路のいずれかを所望の時間、所望
の間隔で順次選択するように前記スイツチング回
路にコントロール回路を接続することを特徴とす
る請求項１記載のマルチ振動子の駆動回路。[Claims for Utility Model Registration] 1. An oscillation circuit, at least one vibrator having a plurality of resonant frequencies connected to the oscillation circuit,
In order to cause the oscillation circuit to oscillate at two or more frequencies, a multi-oscillation system includes a plurality of feedback circuits that change the characteristics of the feedback loop of the oscillation circuit, and a switching circuit that selects any one of the feedback circuits. Child drive circuit. 2. The multi-oscillator drive circuit according to claim 1, wherein a control circuit is connected to the switching circuit so as to sequentially select one of the feedback circuits at a desired time and at a desired interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5532088U JPH01163478U (en) | 1988-04-25 | 1988-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5532088U JPH01163478U (en) | 1988-04-25 | 1988-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01163478U true JPH01163478U (en) | 1989-11-14 |
Family
ID=31281221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5532088U Pending JPH01163478U (en) | 1988-04-25 | 1988-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01163478U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132406A (en) * | 1981-02-09 | 1982-08-16 | Nippon Telegr & Teleph Corp <Ntt> | Digital control type piezoelectric oscillating circuit |
| JPS57209678A (en) * | 1981-06-19 | 1982-12-23 | Ricoh Kk | Ultrasonic washing method |
-
1988
- 1988-04-25 JP JP5532088U patent/JPH01163478U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132406A (en) * | 1981-02-09 | 1982-08-16 | Nippon Telegr & Teleph Corp <Ntt> | Digital control type piezoelectric oscillating circuit |
| JPS57209678A (en) * | 1981-06-19 | 1982-12-23 | Ricoh Kk | Ultrasonic washing method |