JPS58128672U - Oscillator excitation circuit - Google Patents
Oscillator excitation circuitInfo
- Publication number
- JPS58128672U JPS58128672U JP1857182U JP1857182U JPS58128672U JP S58128672 U JPS58128672 U JP S58128672U JP 1857182 U JP1857182 U JP 1857182U JP 1857182 U JP1857182 U JP 1857182U JP S58128672 U JPS58128672 U JP S58128672U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- excitation circuit
- capacitor
- vibrator
- oscillation
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図乃至第３図は夫々従来の振動子励振回路を示す回
路図、第４図は圧電振動子を有する超音波振動体の一例
を示す側面図、第５図は本考案に係る振動子励振回路の
第１実施例を示す回路図、第６図は本考案の第２実施例
を示す回路図、第７図は本考案の第３実施例を示す回路
図、第８図は本考案の第ｊ実施例を示す回路図である。
Ｃ１乃至Ｃ６・・・コンデンサ、ＣＨ・・・チョークコ
イル、Ｄ・・・ダイオード、Ｌ・・・可変コイル、Ｐ、
Ｎ・・・電源端子、Ｒ，Ｒ１，Ｒ２・・・抵抗器、ＴＤ
・・・圧電振動子、ＴＲ・・・トランジスタ。Figures 1 to 3 are circuit diagrams showing conventional vibrator excitation circuits, Figure 4 is a side view of an example of an ultrasonic vibrator having a piezoelectric vibrator, and Figure 5 is a vibrator according to the present invention. A circuit diagram showing the first embodiment of the excitation circuit, FIG. 6 is a circuit diagram showing the second embodiment of the present invention, FIG. 7 is a circuit diagram showing the third embodiment of the present invention, and FIG. 8 is a circuit diagram showing the third embodiment of the present invention. FIG. C1 to C6...Capacitor, CH...Choke coil, D...Diode, L...Variable coil, P,
N...Power terminal, R, R1, R2...Resistor, TD
...Piezoelectric vibrator, TR...transistor.
Claims (3)
ダンスを示す発振周波数で振動し、その振動エネルギを
利用するトランジスタ発振回路からなる振動子励振回路
において、トランジスタのコレクターベース間の発振ル
ープの中にコイル及びコンデンサによる共振回路を前記
圧電振動子に直列に挿入し、前記コイル及びコンデンサ
による共振回路の共振周波数を前記発振周波数の近傍に
設定したことを特徴とする振動子励振回路。(1) In a resonator excitation circuit consisting of a transistor oscillation circuit that uses the vibration energy of a piezoelectric vibrator that vibrates at an oscillation frequency that exhibits inductive impedance, the oscillation loop between the collector base of the transistor is A resonant circuit including a coil and a capacitor is inserted in series with the piezoelectric vibrator, and a resonant frequency of the resonant circuit including the coil and the capacitor is set near the oscillation frequency.
登録請求の範囲第１項記載の振動子励振回路。(2) The vibrator excitation circuit according to claim 1, wherein the coil is a variable inductance.
１００以下である実用新案登録請求の範囲第１項記載の
振動子励振回路。(3) The vibrator excitation circuit according to claim 1, wherein the resonant circuit including the coil and the capacitor has a Q of 100 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1857182U JPS58128672U (en) | 1982-02-15 | 1982-02-15 | Oscillator excitation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1857182U JPS58128672U (en) | 1982-02-15 | 1982-02-15 | Oscillator excitation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58128672U true JPS58128672U (en) | 1983-08-31 |
Family
ID=30030823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1857182U Pending JPS58128672U (en) | 1982-02-15 | 1982-02-15 | Oscillator excitation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008035409A (en) * | 2006-07-31 | 2008-02-14 | Nippon Dempa Kogyo Co Ltd | Sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56133082A (en) * | 1980-03-21 | 1981-10-17 | Mikuni Kogyo Kk | Oscillation circuit for ultrasonic humidifier |
-
1982
- 1982-02-15 JP JP1857182U patent/JPS58128672U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56133082A (en) * | 1980-03-21 | 1981-10-17 | Mikuni Kogyo Kk | Oscillation circuit for ultrasonic humidifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008035409A (en) * | 2006-07-31 | 2008-02-14 | Nippon Dempa Kogyo Co Ltd | Sensor |
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