JPS63221704A - Piezoelectric oscillation circuit - Google Patents
Piezoelectric oscillation circuitInfo
- Publication number
- JPS63221704A JPS63221704A JP5595387A JP5595387A JPS63221704A JP S63221704 A JPS63221704 A JP S63221704A JP 5595387 A JP5595387 A JP 5595387A JP 5595387 A JP5595387 A JP 5595387A JP S63221704 A JPS63221704 A JP S63221704A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- capacitor
- oscillation circuit
- resistive element
- frequency
- 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 title claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 230000035939 shock Effects 0.000 abstract description 4
- 239000004576 sand Substances 0.000 abstract description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、圧電振動子とＣＭＯＥＩインバーター発振回
路とから構成される圧電発振回路に関し、特に周波数調
整を行なう圧電発振回路に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a piezoelectric oscillation circuit composed of a piezoelectric vibrator and a CMOEI inverter oscillation circuit, and particularly to a piezoelectric oscillation circuit that performs frequency adjustment.
〔従来の技術〕−
従来、圧電振動子と０Ｍ０Ｓインバ一ター発振回路とか
ら構成される圧電発振回路で、周波数調整を行なう場合
にはトリマーコンデンサを用いた。[Prior Art] Conventionally, in a piezoelectric oscillation circuit composed of a piezoelectric vibrator and a 0M0S inverter oscillation circuit, a trimmer capacitor was used for frequency adjustment.
ｍ５図はトリマーコンデンサを用いた圧電発振回路であ
る。圧電振動子１と発振ループを形底する０Ｍ０Ｓイン
バータ２のゲート側コンデンサ５と並列にトリマーコン
デンサ４を接続し、トリマーコンデンサ４１に回転させ
容量調整する事により発振°周波数を変化させｉ１４整
していた。ただし、図１テハトリマーコンデンサ４−ｉ
０４−１Ｏインバーター２のゲート側に接続されている
が、ドレイン側に接続する場合もある。Figure m5 shows a piezoelectric oscillation circuit using a trimmer capacitor. A trimmer capacitor 4 is connected in parallel with the gate side capacitor 5 of the 0M0S inverter 2 that forms the bottom of the piezoelectric vibrator 1 and the oscillation loop, and the oscillation frequency is changed by adjusting the capacitance by rotating the trimmer capacitor 41. Ta. However, Fig. 1 Tehatrimer capacitor 4-i
Although it is connected to the gate side of the 04-1O inverter 2, it may also be connected to the drain side.
しかし、この禄な従来方式では、トリマーコンデンサ回
転機構を有している為、周波数調整工程において周波数
稠整直後後口転部の復元力によって周波数が変化してし
まい精度の高い周波数調整ができず、更に使用中におい
ても振動、衝撃によシ回転部が回って周波数が変動して
しまうという問題を有している。However, since this convenient conventional method has a trimmer capacitor rotating mechanism, the frequency changes due to the restoring force of the rotation part immediately after frequency adjustment in the frequency adjustment process, making it impossible to perform highly accurate frequency adjustment. Furthermore, even during use, the rotating part rotates due to vibrations and shocks, causing the frequency to fluctuate.
又、トリマーコンデンサは、セラミック誘電体とステー
タ電極との空隙をシリコンオイルで埋めているため、有
機溶剤で洗浄する事ができず、実装後フラックスの洗浄
ができない。Furthermore, since the trimmer capacitor fills the gap between the ceramic dielectric and the stator electrode with silicone oil, it cannot be cleaned with an organic solvent, and flux cannot be cleaned after mounting.
又、発振周波数の調整方法としては、ｒＪ４６図に示す
様なバリキャップダイオードを用いる方法もあるが、回
路が複雑になるという欠点がある。Further, as a method of adjusting the oscillation frequency, there is a method of using a varicap diode as shown in Fig. rJ46, but this method has the disadvantage that the circuit becomes complicated.
そこで本発明はこのような問題点を解決するもので、そ
の目的とするところは、周波数調整直後に同波数変化せ
ず使用中において振動、衝撃によって周波数変動せず、
溶液洗浄可能で、且つ構成が簡単な周波数調整回路を有
した圧電発１Ｂ回路を提供するところにある。The present invention is intended to solve these problems, and its purpose is to prevent the frequency from changing due to vibrations and shocks during use without changing the same wave number immediately after frequency adjustment.
An object of the present invention is to provide a piezoelectric generator 1B circuit that can be cleaned with a solution and has a frequency adjustment circuit with a simple configuration.
本発明の圧電発振回路は、圧電振動子とＣＭＯＳインバ
ータ発振回路とから構成される圧電発振回路において、
圧電振動子と発振ループを形匡するｃｕｏｓインバータ
のゲート又はドレインニコンデンサと抵抗素子の直列回
路を接続した事を特徴とする。A piezoelectric oscillation circuit of the present invention includes a piezoelectric vibrator and a CMOS inverter oscillation circuit.
It is characterized by connecting a piezoelectric vibrator, the gate or drain of a cuos inverter that forms an oscillation loop, a capacitor, and a series circuit of a resistor element.
以下、本発明について、実施例に基づき詳細に説明する
。Hereinafter, the present invention will be described in detail based on examples.
Ｗ４１＠は、本発明の周波数＊Ｊ４！１機能を有する圧
電振動子とＱＭＯＳインバータ回路から構成される圧電
発振回路である。圧電振動子１とゲート容量５、ドレイ
ン容量６゛とＣＭＯＳインバータ２とから発振ループを
形成する。５は出力バッファ用０Ｍ０日インバーター、
７はフィードバック抵抗である。この様に構成される圧
電発振回路に周波数調整用としてゲート容量５に並列に
コンデンサ８と抵抗素子９の直列＠ Ｍｒ を接続する
。W41@ is a piezoelectric oscillation circuit composed of a piezoelectric vibrator having the frequency *J4!1 function of the present invention and a QMOS inverter circuit. An oscillation loop is formed from the piezoelectric vibrator 1, the gate capacitor 5, the drain capacitor 6', and the CMOS inverter 2. 5 is a 0M0 day inverter for output buffer,
7 is a feedback resistance. To the piezoelectric oscillator circuit configured in this manner, a series @ Mr consisting of a capacitor 8 and a resistive element 9 is connected in parallel to the gate capacitor 5 for frequency adjustment.
抵抗素子９は、ＲｕＯ又はＲｕ０１等の厚膜抵抗素子で
、レーザートリマー又はサンドトリマー等のトリマー装
置で抵抗体を切シ込む事により、厚膜抵抗素子の幅寸法
を狭くして抵抗値を高くする事ができる。The resistive element 9 is a thick film resistive element such as RuO or Ru01, and by cutting the resistor with a trimmer device such as a laser trimmer or a sand trimmer, the width of the thick film resistive element is narrowed and the resistance value is increased. I can do that.
この様に構成された圧電発振回路において、抵抗素子９
の抵抗値を可変設定する事によって発振周波数ｔ−調整
する事ができる。ｍ２図と果５図は、本発明の有効性を
実証する実験データを示したものである。纂２図に示す
ように抵抗素子９の抵抗値を大きくするにつれて発振周
波数が増大する。In the piezoelectric oscillation circuit configured in this way, the resistive element 9
The oscillation frequency t can be adjusted by variably setting the resistance value of . Figures m2 and 5 show experimental data demonstrating the effectiveness of the present invention. As shown in Figure 2, the oscillation frequency increases as the resistance value of the resistance element 9 increases.
又、直列に接続されるコンデンサ８の容量値が大きい程
、発振周波数変化量が大きくなる事も分かった。第５＠
は、抵抗素子としての厚膜抵抗の切り込み長さと周波数
変化の関係を示すデータである＠ ｊｌ ’図は厚膜抵
抗素子の平面図で、長さｍｔ−切り込んである。厚膜抵
抗を切シ込むにつれて発振周波数が増大する事が分かる
。し九がって実際に発振周波数詞！Ｉをする場合は、発
振同波ａ金測定し厚膜抵抗の切り込みを制御する事で希
望周波数に調整する事ができる。It was also found that the larger the capacitance value of the capacitor 8 connected in series, the larger the amount of change in the oscillation frequency. 5th @
is data showing the relationship between the cut length and frequency change of a thick film resistor as a resistance element @jl 'The figure is a plan view of a thick film resistor element, which is cut by length mt. It can be seen that the oscillation frequency increases as the thickness of the thick film resistor is cut. Actually oscillating frequency words! When using I, the desired frequency can be adjusted by measuring the oscillation same wave a gold and controlling the notch of the thick film resistor.
更に、発１ｆｔ＋回路基板金セラミック基板とする場合
においては、厚膜抵抗を基板上に一体させて形成する事
ができるので、小型の発振器を構成する利点もちり、し
かも電気的に高周波１１？注が良好である。Furthermore, when using a 1ft oscillator + circuit board gold-ceramic substrate, a thick film resistor can be integrally formed on the substrate, which has the advantage of configuring a small oscillator, and moreover, electrically high frequency 11? Notes are good.
尚、実施例では、コンデンサ８と抵抗素子９の直列回路
’ｉｏＭＯＢインバーターのゲート偶に接続しているが
、同回路をドレイン側に接続しても同様の効果が得られ
る。In the embodiment, the series circuit of the capacitor 8 and the resistive element 9 is connected to the gate of the ioMOB inverter, but the same effect can be obtained even if the same circuit is connected to the drain side.
又、本実施例での圧電振動子とは、水晶振動子。Furthermore, the piezoelectric vibrator in this embodiment is a crystal vibrator.
セラミック振動子、ＬｉＴＩＬＯＢ等である。Ceramic resonators, LiTILOB, etc.
以上説明した様に本発明によれば、圧電発振回路の発振
局波数をトリマーコンデンサを使用せず抵抗素子の抵抗
値を変える事で調整する事ができ、抵抗素子を厚膜抵抗
としトリマー装置で抵抗値を変化させれば、発振周波数
の微調整が可能で、且つａｌｌ整直後及び使用中の振動
、衝撃の環境下においても周波数変動はきわめて少なく
なる。As explained above, according to the present invention, the oscillation local wave number of the piezoelectric oscillator circuit can be adjusted by changing the resistance value of the resistor element without using a trimmer capacitor. By changing the resistance value, it is possible to finely adjust the oscillation frequency, and the frequency fluctuation is extremely small even under vibration and shock environments immediately after all adjustment and during use.
又、トリマーコンデンサのように有機溶剤に溶けやすい
オイルを用いていないので加工工程において溶液洗浄が
可能になる。Also, unlike trimmer capacitors, it does not use oil that is easily soluble in organic solvents, so solution cleaning is possible during the processing process.
第１図は、本発明の圧電発振回路の一実施例を示す回路
図、第２図は、本発明の有効性を確認するための周波数
変化率と抵抗値との関係を示す特注図、第５図は、本発
明の有効性を確認するための周波数変化率と厚膜抵抗素
千切シ込み長との関係を示す特性図、第４図は、厚膜抵
抗素子の平面図、第５図は、従来公知の圧電発揚回路で
トリマーコンデンサを用いた一例を示す回路図、第６図
は、従来公知の圧電発振回路でバリキャップダイオード
を用いた一例を示す回路図である。
１・・・圧電振動子
２・・・０ＭＯ８インバーター
９・・・抵抗素子
１１・・・バリキャップダイオード
１２・・・定電圧電源
２１・・・電極
２２・・・抵抗体
以上FIG. 1 is a circuit diagram showing an embodiment of the piezoelectric oscillation circuit of the present invention, FIG. 2 is a custom-made diagram showing the relationship between frequency change rate and resistance value for confirming the effectiveness of the present invention, and FIG. Fig. 5 is a characteristic diagram showing the relationship between the frequency change rate and the thick film resistor strip depth for confirming the effectiveness of the present invention, Fig. 4 is a plan view of the thick film resistor element, and Fig. 5 6 is a circuit diagram showing an example of a conventional piezoelectric oscillation circuit using a trimmer capacitor, and FIG. 6 is a circuit diagram showing an example of a conventional piezoelectric oscillation circuit using a varicap diode. 1... Piezoelectric vibrator 2... 0MO8 inverter 9... Resistance element 11... Varicap diode 12... Constant voltage power supply 21... Electrode 22... Resistor or higher
Claims (2)
ら構成される圧電発振回路において、前記圧電振動子と
発振ループを形成するＣＭＯＳインバーターのゲート容
量又はドレイン容量と並列にコンデンサと抵抗素子の直
列回路を接続した事を特徴とする圧電発振回路。(1) In a piezoelectric oscillation circuit composed of a piezoelectric vibrator and a CMOS inverter oscillation circuit, a series circuit of a capacitor and a resistive element is connected in parallel to the gate capacitance or drain capacitance of the CMOS inverter that forms an oscillation loop with the piezoelectric vibrator. A piezoelectric oscillation circuit characterized by a connection.
トリマー装置により変化させ、前記圧電発振回路の周波
数調整を行なう特許請求の範囲第１項記載の圧電発振回
路。(2) The piezoelectric oscillation circuit according to claim 1, wherein the resistance element is a fixed resistance element whose resistance value is changed by a trimmer device to adjust the frequency of the piezoelectric oscillation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5595387A JPS63221704A (en) | 1987-03-11 | 1987-03-11 | Piezoelectric oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5595387A JPS63221704A (en) | 1987-03-11 | 1987-03-11 | Piezoelectric oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63221704A true JPS63221704A (en) | 1988-09-14 |
Family
ID=13013436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5595387A Pending JPS63221704A (en) | 1987-03-11 | 1987-03-11 | Piezoelectric oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63221704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003799A1 (en) * | 1994-07-27 | 1996-02-08 | Citizen Watch Co., Ltd. | Temperature compensation type quartz oscillator |
-
1987
- 1987-03-11 JP JP5595387A patent/JPS63221704A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003799A1 (en) * | 1994-07-27 | 1996-02-08 | Citizen Watch Co., Ltd. | Temperature compensation type quartz oscillator |
| US5801596A (en) * | 1994-07-27 | 1998-09-01 | Citizen Watch Co., Ltd. | Temperature compensation type quartz oscillator |
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