JPS58136113A - Crystal oscillator - Google Patents
Crystal oscillatorInfo
- Publication number
- JPS58136113A JPS58136113A JP1773282A JP1773282A JPS58136113A JP S58136113 A JPS58136113 A JP S58136113A JP 1773282 A JP1773282 A JP 1773282A JP 1773282 A JP1773282 A JP 1773282A JP S58136113 A JPS58136113 A JP S58136113A
- Authority
- JP
- Japan
- Prior art keywords
- amplitude
- oscillation
- diode
- oscillator
- power supply
- 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
- 239000013078 crystal Substances 0.000 title claims abstract description 6
- 230000010355 oscillation Effects 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 102100039527 CBP80/20-dependent translation initiation factor Human genes 0.000 description 1
- 101000746131 Homo sapiens CBP80/20-dependent translation initiation factor Proteins 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000003001 depressive effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は水晶発振器に関するもので、消費電流の低減を
目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crystal oscillator, and its purpose is to reduce current consumption.
以下本発明の一賽施例を図面に基づいて説明する。第１
図において、水晶振動子Ｑ、負荷容量ＣＬ、 、 ＯＬ
、 、 ０−ＭｏＢ （７バー／Ｔおよび帰還抵抗Ｒ
からなる従来構成の発振ｉｓＫ、コンデンサＣＩ。An embodiment of the present invention will be described below based on the drawings. 1st
In the figure, crystal oscillator Q, load capacitance CL, , OL
, , 0-MoB (7 bar/T and feedback resistance R
The conventional configuration consists of an oscillation isK and a capacitor CI.
０１、ダイオードはおよびデプレツシッンモードの電界
効果トランジスタＣ以下、ＦＩＴという）ＤＰからなる
制御回路を設けている。01, a diode and a depressing mode field effect transistor C (hereinafter referred to as FIT) DP.
以上の構成に電源を投入すると、その−関はまだ発振が
行なわれていないため端子ａはＯＮ位となっており１Ｆ
ＥＴ−ＤＰがオンになる。そのためインバータＴ等に電
源電圧がそのまま供給ばれ直ちに発振を開始する。この
発振出力はコンデンサＣ２を介してダイオードｄに供給
きれ、端子ａにはダイオードｄの順方向電圧ＶＦをピー
クの電圧とするマイナス方向のパルスが生じ、ＦＥＴ−
ＤＰ Ｋ流れる電流が上記パルスの振幅に応じて制御さ
れる。When the power is turned on to the above configuration, the - terminal is not yet oscillating, so terminal a is at the ON level, and the 1F
ET-DP is turned on. Therefore, the power supply voltage is directly supplied to the inverter T, etc., and oscillation starts immediately. This oscillation output is fully supplied to the diode d via the capacitor C2, and a negative pulse whose peak voltage is the forward voltage VF of the diode d is generated at the terminal a.
The current flowing through the DPK is controlled according to the amplitude of the pulse.
ＰＫゴーｒ、ＰＫＦｉコンデンサＣ１を接続しであるが
、これは平滑用のものである。したがってインバータＴ
等に供給きれる電源電圧は発振出力の振幅に応じて制御
され、消費電流が低減されるとともに安定した発振を保
持することがでとる。因みＫｌｉ！測によると従来構成
の約４分の１の消費電流に抑えることかで峠１
上記の例ではデプレッシ冒ンモードのＦＥＴを用いたが
、これに代えてエンハンスメントモードのＦＩＣＴ−Ｋ
Ｎを用いたのが第２図である。同図においては分圧抵抗
ｒ１．ｒｆｉを付加しである。これによって端子ｂＫＦ
ｉ、端子ａのパルスの電圧レベルをシフトしたパルスが
生じ、その振幅に応じてＦＲＴ−ＫＮの電流が制御きれ
、上記と全く同様に電濤電圧が制御される。PK Gor and PKFi capacitor C1 are connected, but this is for smoothing. Therefore, inverter T
The power supply voltage that can be supplied to the oscillator and the like is controlled according to the amplitude of the oscillation output, thereby reducing current consumption and maintaining stable oscillation. Incidentally Kli! According to measurements, the current consumption can be reduced to about one-fourth of that of the conventional configuration.
Figure 2 shows the case where N is used. In the figure, voltage dividing resistor r1. Added rfi. This allows terminal bKF
i, a pulse whose voltage level is shifted from that of the pulse at terminal a is generated, the current of FRT-KN can be controlled according to its amplitude, and the electric voltage is controlled in exactly the same way as above.
なお上記の各実施例において、コンデンサＯ３、ダイオ
ードｄシよび抵抗ｒＨ，ｒｚは集積化が可能であり、−
成約にも簡単である。In each of the above embodiments, the capacitor O3, the diode dshi, and the resistors rH and rz can be integrated, and -
It is also easy to conclude a deal.
以上のように本発明によれば発振出力の振幅に応じて電
源電圧を制御するよらにしたので、消費電流を大幅に低
減で舞、しかも発振開始は速やかに行なわせることがで
−る。As described above, according to the present invention, since the power supply voltage is controlled according to the amplitude of the oscillation output, current consumption can be significantly reduced and oscillation can be started quickly.
第１１Ｉけ本発明の一実施例を示した電気回動図、ｆａ
２図は他の実施例を示した電気回路図である。
Ｃ，，０，・・・・・・コンデンサ ｄ・・・・・・ダ
イオードＤＰ・・・・・ｅデプレッシ目ンモードＦＩＩ
ＣＴＩＦ・・・・・・エンハンスメントモコードＦＥＴ
代理人弁理士 最上 務
第１図
第２図11th I Electrical rotation diagram showing one embodiment of the present invention, fa
FIG. 2 is an electrical circuit diagram showing another embodiment. C,,0,... Capacitor d... Diode DP... e Depressive mode FII
CTIF・・・Enhancement mode code FET
Representative Patent Attorney Tsutomu Mogami Figure 1 Figure 2
Claims (1)
制御回路を設けた水晶発振器。A crystal oscillator equipped with a control circuit that feeds back the oscillation output and controls the power supply voltage according to its amplitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1773282A JPS58136113A (en) | 1982-02-05 | 1982-02-05 | Crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1773282A JPS58136113A (en) | 1982-02-05 | 1982-02-05 | Crystal oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58136113A true JPS58136113A (en) | 1983-08-13 |
Family
ID=11951919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1773282A Pending JPS58136113A (en) | 1982-02-05 | 1982-02-05 | Crystal oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58136113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010147889A (en) * | 2008-12-19 | 2010-07-01 | Citizen Holdings Co Ltd | Quartz oscillation circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143841A (en) * | 1979-04-26 | 1980-11-10 | Seiko Epson Corp | Oscillating circuit |
-
1982
- 1982-02-05 JP JP1773282A patent/JPS58136113A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143841A (en) * | 1979-04-26 | 1980-11-10 | Seiko Epson Corp | Oscillating circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010147889A (en) * | 2008-12-19 | 2010-07-01 | Citizen Holdings Co Ltd | Quartz oscillation circuit |
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