JPH01153730U - - Google Patents
Info
- Publication number
- JPH01153730U JPH01153730U JP5121288U JP5121288U JPH01153730U JP H01153730 U JPH01153730 U JP H01153730U JP 5121288 U JP5121288 U JP 5121288U JP 5121288 U JP5121288 U JP 5121288U JP H01153730 U JPH01153730 U JP H01153730U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- vibration
- common electrode
- main surface
- circuit element
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 2
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案に係る回路素子の構成を模式的
に示す縦断面図、第２図はこれを構成するコンデ
ンサユニツトの斜視図、第３図は本考案に係る回
路素子を用いた発振回路図、第４図及び第５図は
圧電振動子のインピーダンスの周波数特性を示す
図、第６図は振動部のインピーダンスの周波数特
性を示す図、第７図はスプリアス振動時の回路図
、第８図はコルピツツ型発振回路図、第９図は従
来の回路素子の構成を模式的に示す縦断面図、第
１０図は圧電振動子の斜視図、第１１図は従来の
コンデンサユニツトの斜視図である。
１１，１２……リード端子、１３……圧電振動
子、１４……コンデンサユニツト、１６，１７…
…電極、１８……圧電体基板、１９……共通電極
、２０，２１……対向電極、２３……リード端子
、２４……振動部、２５……振動空間、２６……
絶縁樹脂、２９……負荷容量、３０……振動部。
Fig. 1 is a vertical cross-sectional view schematically showing the configuration of a circuit element according to the present invention, Fig. 2 is a perspective view of a capacitor unit constituting this, and Fig. 3 is an oscillation circuit using the circuit element according to the present invention. Figures 4 and 5 are diagrams showing the frequency characteristics of the impedance of the piezoelectric vibrator, Figure 6 is a diagram showing the frequency characteristics of the impedance of the vibrating part, Figure 7 is a circuit diagram during spurious vibration, and Figure 8 is a diagram showing the frequency characteristics of the impedance of the vibrating part. The figure shows a Colpitts type oscillation circuit diagram, Fig. 9 is a vertical cross-sectional view schematically showing the configuration of a conventional circuit element, Fig. 10 is a perspective view of a piezoelectric vibrator, and Fig. 11 is a perspective view of a conventional capacitor unit. be. 11, 12... Lead terminal, 13... Piezoelectric vibrator, 14... Capacitor unit, 16, 17...
... Electrode, 18 ... Piezoelectric substrate, 19 ... Common electrode, 20, 21 ... Counter electrode, 23 ... Lead terminal, 24 ... Vibration section, 25 ... Vibration space, 26 ...
Insulating resin, 29...load capacity, 30...vibrating part.
Claims (1)
体的にモールドされた回路素子において、 前記負荷容量は、圧電体基板の一方の主表面の
中央部に共通電極を有し、また他方の主表面に、
該主表面の中央部にて分離され、前記共通電極と
その一部が対向する１対の対向電極を備え、該対
向電極の一方と共通電極とが対向する部分の近傍
が分極処理されており、分極処理されている対向
部分の振動周波数が、圧電振動子のスプリアス振
動の周波数に一致しており、該対向部分の振動空
間及び圧電振動子の振動空間を残してモールドさ
れてなることを特徴とする回路素子。[Claims for Utility Model Registration] In a circuit element in which a piezoelectric vibrator and two load capacitors are integrally molded with an insulating resin, the load capacitors are provided with a common electrode in the center of one main surface of a piezoelectric substrate. and on the other main surface,
A pair of opposing electrodes are separated at the center of the main surface, a portion of which faces the common electrode, and the vicinity of the portion where one of the opposing electrodes faces the common electrode is polarized. , the vibration frequency of the polarized opposing portion matches the frequency of spurious vibration of the piezoelectric vibrator, and is molded leaving a vibration space of the opposing portion and a vibration space of the piezoelectric vibrator. A circuit element that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5121288U JPH01153730U (en) | 1988-04-15 | 1988-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5121288U JPH01153730U (en) | 1988-04-15 | 1988-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01153730U true JPH01153730U (en) | 1989-10-23 |
Family
ID=31277243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5121288U Pending JPH01153730U (en) | 1988-04-15 | 1988-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01153730U (en) |
-
1988
- 1988-04-15 JP JP5121288U patent/JPH01153730U/ja active Pending