JPH0246087Y2 - - Google Patents
Info
- Publication number
- JPH0246087Y2 JPH0246087Y2 JP19079184U JP19079184U JPH0246087Y2 JP H0246087 Y2 JPH0246087 Y2 JP H0246087Y2 JP 19079184 U JP19079184 U JP 19079184U JP 19079184 U JP19079184 U JP 19079184U JP H0246087 Y2 JPH0246087 Y2 JP H0246087Y2
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- operational amplifier
- inverting input
- input terminal
- sub
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 description 9
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は、主発振器と副発振器とを備え、副発
振器が独立の発振器としても動作し、また主発振
器に同期した信号を出力する増幅器としても動作
する発振器装置に関する。[Detailed description of the invention] [Technical field of the invention] The invention comprises a main oscillator and a sub-oscillator, and the sub-oscillator operates as an independent oscillator and also functions as an amplifier that outputs a signal synchronized with the main oscillator. Relating to an operating oscillator device.
発振回路として第２図に示すように増幅器１の
負帰還回路に抵抗Ｒ１およびコンデンサＣ１から
なるRC並列回路を接続し、正帰還回路に抵抗Ｒ
２およびコンデンサＣ２からなるRC直列回路を
接続してなるブリツジ型発振回路が知られてい
る。この発振回路において抵抗Ｒ１，Ｒ２の抵抗
値を便宜上Ｒ１，Ｒ２とし、同様にコンデンサＣ
１，Ｃ２のキヤパシタンスをＣ１，Ｃ２とすれ
ば、
R1＝R2，C1＝C2
に設定され、また増幅度Ａが
Ａ≧１＋R2／R1＋C2／C1＝３ …(1)
の条件により発振し、その発振周波数は
で与えられる。
As an oscillation circuit, as shown in Figure 2, an RC parallel circuit consisting of a resistor R1 and a capacitor C1 is connected to the negative feedback circuit of amplifier 1, and a resistor R is connected to the positive feedback circuit.
A bridge type oscillation circuit is known, which is formed by connecting an RC series circuit consisting of a capacitor C2 and a capacitor C2. In this oscillation circuit, the resistance values of the resistors R1 and R2 are set as R1 and R2 for convenience, and the capacitor C
If the capacitances of 1 and C2 are C1 and C2, R1=R2, C1=C2 are set, and the amplification A oscillates under the condition of A≧1+R2/R1+C2/C1=3...(1), and the oscillation The frequency is is given by
ところで、複数個のトランスジユーサなどの負
荷に対して個々に電源装置を備え、各電源装置に
共通の主発振器に同期して発振する副発振器によ
り同期運転電圧を発生させ、それにより複数個の
負荷に所定周波数の互いに同期した電圧を印加す
ることを要求される場合がある。 By the way, a power supply device is provided for each load such as a plurality of transducers, and a synchronous operation voltage is generated by a sub-oscillator that oscillates in synchronization with a main oscillator common to each power supply device. There are cases where it is required to apply mutually synchronized voltages of a predetermined frequency to a load.
しかし、各電源装置に設けられる副発振器は、
ブリツジ回路の抵抗の値やコンデンサのキヤパシ
タンスにはそれぞれの許容誤差範囲内においてバ
ラツキがあるので、各副発振器の発振周波数が完
全に同一になることはなく、その周波数差に基づ
くビートが生じて各副発振器の動作が不安定にな
る要因となつていた。 However, the sub oscillator provided in each power supply device is
Since the resistance value of the bridge circuit and the capacitance of the capacitor vary within their respective tolerance ranges, the oscillation frequency of each sub-oscillator will never be completely the same, and a beat based on the frequency difference will occur, causing each This caused the operation of the sub oscillator to become unstable.
抵抗やコンデンサの誤差により主発振器からの
同期周波数と副発振器の発振周波数との間に数％
の周波数偏差が生ずると全く同期がとれない状態
になる。 Due to errors in resistors and capacitors, there may be a few percent difference between the synchronous frequency from the main oscillator and the oscillation frequency of the sub oscillator.
If a frequency deviation occurs, synchronization will not be achieved at all.
本考案は上記の欠点を除去し、上記周波数偏差
を無くすと共に、単一負荷を対象として安価な構
成の発振器となし得る発振器装置を提供すること
を目的とするものである。
SUMMARY OF THE INVENTION It is an object of the present invention to provide an oscillator device that eliminates the above-mentioned drawbacks, eliminates the frequency deviation, and can be used as an oscillator of inexpensive construction for a single load.
上記目的を達成するために本考案は、主発振器
と、この主発振器の出力側に接続され得る副発振
器とを備えてなり、前記副発振器はそれぞれ反転
入力端子および非反転入力端子を有する演算増幅
器と、この演算増幅器の出力端子と反転入力端子
との間に接続された負帰還抵抗と、前記演算増幅
器の出力振幅基準を設定する基準設定回路と、前
記演算増幅器の出力振幅と前記出力振幅基準を比
較してその偏差を出力する比較回路と、この比較
回路の出力端子と前記演算増幅器の反転入力端子
との間に介挿された利得制御用振幅制御回路と、
可動接点を前記演算増幅器の非反転入力端子に接
続した切換スイツチと、この切換スイツチの第１
の固定接点と前記主発振器の出力端子との間に介
挿された抵抗と、前記演算増幅器の出力端子と前
記切換スイツチの第２の固定接点との間に接続さ
れた抵抗およびコンデンサの直列接続体と、前記
第２の固定接点とアースの間に接続されたコンデ
ンサと、前記可動接点とアースの間に接続された
抵抗とを具備し、前記演算増幅器の出力端子を副
発振器の出力端として、副発振器は、前記切換ス
イツチを第１の固定接点側に切換えることにより
前記主発振器に同期した周波数を出力する増幅器
として動作し、第２の固定接点側に切換えること
により主発振器から分離された自励発振器として
動作することを特徴とする発振器装置を構成した
ものである。
In order to achieve the above object, the present invention comprises a main oscillator and a sub-oscillator that can be connected to the output side of the main oscillator, and each of the sub-oscillators is an operational amplifier having an inverting input terminal and a non-inverting input terminal. , a negative feedback resistor connected between the output terminal and the inverting input terminal of the operational amplifier, a reference setting circuit that sets an output amplitude reference of the operational amplifier, and an output amplitude of the operational amplifier and the output amplitude reference. a comparison circuit that compares and outputs the deviation thereof; and an amplitude control circuit for gain control inserted between the output terminal of the comparison circuit and the inverting input terminal of the operational amplifier;
a changeover switch whose movable contact is connected to the non-inverting input terminal of the operational amplifier;
a resistor inserted between a fixed contact of the switch and the output terminal of the main oscillator, and a series connection of a resistor and a capacitor connected between the output terminal of the operational amplifier and a second fixed contact of the changeover switch. a capacitor connected between the second fixed contact and ground, and a resistor connected between the movable contact and ground, and the output terminal of the operational amplifier is used as the output terminal of a sub-oscillator. , the sub oscillator operates as an amplifier that outputs a frequency synchronized with the main oscillator by switching the changeover switch to the first fixed contact side, and is separated from the main oscillator by switching the switch to the second fixed contact side. This is an oscillator device characterized in that it operates as a self-excited oscillator.
第１図は本考案の一実施例を示すものである。
この装置は主発振器２と副発振器３とから成つて
いる。副発振器３は一般に主発振器２を共通にし
て複数組設けられるが、図には簡単のため１組し
か示されていない。
FIG. 1 shows an embodiment of the present invention.
This device consists of a main oscillator 2 and a sub-oscillator 3. Generally, a plurality of sets of sub oscillators 3 are provided with the main oscillator 2 in common, but only one set is shown in the figure for simplicity.
副発振器３は演算増幅器５を備えており、その
出力端子と反転入力端子との間に負帰還抵抗Ｒ３
が接続され、また、同出力端子とアースとの間に
抵抗Ｒ２およびコンデンサＣ２からなるRC直列
回路と、コンデンサＣ１とが直列に接続され、さ
らに非反転入力端子とアースとの間に抵抗Ｒ１が
接続されている。抵抗Ｒ１を接続したこの非反転
入力端子は切換スイツチ６の可動接点に接続され
ている。切換スイツチ６の第１の固定接点４は入
力抵抗Ｒ４を介して主発振器２の出力端子に接続
され、第２の固定接点１１は前述のRC直列回路
とコンデンサＣ１との接続点に接続されている。
演算増幅器５の出力は結合コンデンサＣ３を介し
て装置全体の出力端子８に導かれるとともに比較
器７の第１の入力端子に導かれる。この比較器７
の第２の入力端子には基準設定回路９によつて設
定された出力振幅基準が入力される。比較器７は
両入力の偏差を出力し、それを振幅制御回路１０
を介して演算増幅器５の反転入力端子に帰還す
る。基準設定回路９、比較回路７、および振幅制
御回路１０により自動利得回路が構成される。抵
抗Ｒ１，Ｒ２およびコンデンサＣ１，Ｃ２の値は
それぞれ第２図の同符号のものと同一に設定され
る。 The sub-oscillator 3 includes an operational amplifier 5, and a negative feedback resistor R3 is connected between its output terminal and inverting input terminal.
In addition, an RC series circuit consisting of a resistor R2 and a capacitor C2 and a capacitor C1 are connected in series between the output terminal and the ground, and a resistor R1 is connected between the non-inverting input terminal and the ground. It is connected. This non-inverting input terminal to which the resistor R1 is connected is connected to a movable contact of the changeover switch 6. The first fixed contact 4 of the changeover switch 6 is connected to the output terminal of the main oscillator 2 via the input resistor R4, and the second fixed contact 11 is connected to the connection point between the aforementioned RC series circuit and the capacitor C1. There is.
The output of the operational amplifier 5 is led via a coupling capacitor C3 to an output terminal 8 of the entire device and to a first input terminal of a comparator 7. This comparator 7
The output amplitude standard set by the standard setting circuit 9 is inputted to the second input terminal of the . The comparator 7 outputs the deviation between both inputs, and sends it to the amplitude control circuit 10.
It is fed back to the inverting input terminal of the operational amplifier 5 via the inverting input terminal of the operational amplifier 5. The reference setting circuit 9, the comparison circuit 7, and the amplitude control circuit 10 constitute an automatic gain circuit. The values of resistors R1, R2 and capacitors C1, C2 are respectively set to be the same as those with the same symbols in FIG.
第１図の装置において切換スイツチ６を図示の
ごとく第１の固定接点４側に切換えた場合、抵抗
Ｒ２、コンデンサＣ２およびコンデンサＣ１は演
算増幅器５の負荷インピーダンスを構成し、入力
抵抗Ｒ４の抵抗値Ｒ４が抵抗Ｒ１の抵抗値Ｒ１の
２倍、すなわちＲ４＝2R１とすれば、演算増幅
器５の非反転入力端子の入力電圧は主発振器２の
出力電圧をＶとして1/3Ｖとなる。一方、副発振
器３は(1)式に従つて増幅度３の非反転増幅器とし
て動作する。したがつて、出力端子８から主発振
器２の出力電圧Ｖと同一値で、しかも周波数の等
しい出力を得ることができる。 When the changeover switch 6 is switched to the first fixed contact 4 side in the device shown in FIG. If R4 is twice the resistance value R1 of resistor R1, that is, R4=2R1, then the input voltage at the non-inverting input terminal of operational amplifier 5 will be 1/3V, where V is the output voltage of main oscillator 2. On the other hand, the sub oscillator 3 operates as a non-inverting amplifier with an amplification factor of 3 according to equation (1). Therefore, an output having the same value and frequency as the output voltage V of the main oscillator 2 can be obtained from the output terminal 8.
切換スイツチ６を固定設定１１側に切換える
と、副発振器３は主発振器２から切離され、コン
デンサＣ１は抵抗Ｒ１とともに演算増幅器５の非
反転入力端子とアースとの間に並列に接続され、
演算増幅器５とそれに接続されているインピーダ
ンス素子により公知のブリツジ型発振器が構成さ
れる。この場合、副発振器５は主発振器２から切
離された独立の自励発振器として動作することに
なる。 When the changeover switch 6 is switched to the fixed setting 11 side, the sub oscillator 3 is disconnected from the main oscillator 2, and the capacitor C1 is connected in parallel with the resistor R1 between the non-inverting input terminal of the operational amplifier 5 and the ground.
A known bridge type oscillator is configured by the operational amplifier 5 and the impedance element connected thereto. In this case, the sub oscillator 5 will operate as an independent self-excited oscillator separated from the main oscillator 2.
以上述べたように本考案によれば、副発振器の
機能を切換スイツチの切換により、主発振器に同
期した周波数・電圧を出力する増幅器として動作
させたり、主発振器から切離された独立の発振器
として動作させたりすることができ、前者の増幅
器運転モードでは主発振器２に複数の副発振器３
を接続しても各副発振器の出力周波数に偏差を生
ずることがなく、したがつてビートを生じたりす
ることなく安定した発振周波数電圧を複数の負荷
に供給することができる。また、後者の自励発振
器運転モードでは同期を必要としない負荷に対し
て主発振器を用いることなく、単独で安定した発
振周波数電圧を供給することができる。したがつ
て、本考案によれば、種々の使用状態の可能な安
定動作の、応用性の高い発振器装置を提供するこ
とができる。
As described above, according to the present invention, by switching the function of the sub oscillator, the function of the sub oscillator can be operated as an amplifier that outputs a frequency and voltage synchronized with the main oscillator, or as an independent oscillator separated from the main oscillator. In the former amplifier operation mode, the main oscillator 2 has multiple sub oscillators 3.
Even if the sub-oscillators are connected, no deviation occurs in the output frequency of each sub-oscillator, and therefore a stable oscillation frequency voltage can be supplied to a plurality of loads without generating a beat. In addition, in the latter self-excited oscillator operation mode, a stable oscillation frequency voltage can be independently supplied to a load that does not require synchronization without using the main oscillator. Therefore, according to the present invention, it is possible to provide a highly applicable oscillator device that can operate stably under various usage conditions.
第１図は本考案による発振器装置の一実施例を
示す回路結線図、第２図は公知のブリツジ型発振
回路の結線図である。
２……主発振器、３……副発振器、５……演算
増幅器、６……切換スイツチ、７……比較器、８
……出力端子、９……基準設定回路、１０……振
幅制御回路、Ｒ１，Ｒ２，Ｒ３，Ｒ４……抵抗、
Ｃ１，Ｃ２，Ｃ３……コンデンサ。
FIG. 1 is a circuit connection diagram showing an embodiment of an oscillator device according to the present invention, and FIG. 2 is a connection diagram of a known bridge type oscillation circuit. 2... Main oscillator, 3... Sub-oscillator, 5... Operational amplifier, 6... Changeover switch, 7... Comparator, 8
...Output terminal, 9...Reference setting circuit, 10...Amplitude control circuit, R1, R2, R3, R4...Resistance,
C1, C2, C3...capacitors.
Claims (1)
得る副発振器とを備えてなり、 前記副発振器はそれぞれ反転入力端子および非
反転入力端子を有する演算増幅器と、この演算増
幅器の出力端子と反転入力端子との間に接続され
た負帰還抵抗と、前記演算増幅器の出力振幅基準
を設定する基準設定回路と、前記演算増幅器の出
力振幅と前記出力振幅基準を比較してその偏差を
出力する比較回路と、この比較回路の出力端子と
前記演算増幅器の反転入力端子との間に介挿され
た利得制御用振幅制御回路と、可動接点を前記演
算増幅器の非反転入力端子に接続した切換スイツ
チと、この切換スイツチの第１の固定接点と前記
主発振器の出力端子との間に介挿された抵抗と、
前記演算増幅器の出力端子と前記切換スイツチの
第２の固定接点との間に接続された抵抗およびコ
ンデンサの直列接続体と、前記第２の固定接点と
アースの間に接続されたコンデンサと、前記可動
接点とアースの間に接続された抵抗とを具備し、 前記演算増幅器の出力端子を副発振器の出力端
として、前記副発振器は、前記切換スイツチを第
１の固定接点側に切換えることにより前記主発振
器に同期した周波数を出力する増幅器として動作
し、第２の固定接点側に切換えることにより主発
振器から分離された自励発振器として動作するこ
とを特徴とする発振器装置。[Claims for Utility Model Registration] It comprises a main oscillator and a sub-oscillator that can be connected to the output side of the main oscillator, and each of the sub-oscillators includes an operational amplifier having an inverting input terminal and a non-inverting input terminal, and an operational amplifier having an inverting input terminal and a non-inverting input terminal, respectively. A negative feedback resistor connected between an output terminal and an inverting input terminal of an operational amplifier, a reference setting circuit that sets an output amplitude reference of the operational amplifier, and a comparison between the output amplitude of the operational amplifier and the output amplitude reference. an amplitude control circuit for gain control inserted between the output terminal of the comparison circuit and the inverting input terminal of the operational amplifier; and a movable contact connected to the non-inverting input terminal of the operational amplifier. a changeover switch connected to the terminal; a resistor inserted between a first fixed contact of the changeover switch and the output terminal of the main oscillator;
a series connection body of a resistor and a capacitor connected between the output terminal of the operational amplifier and a second fixed contact of the changeover switch; a capacitor connected between the second fixed contact and ground; a resistor connected between a movable contact and ground; the output terminal of the operational amplifier is used as the output terminal of a sub-oscillator; the sub-oscillator is configured to switch the changeover switch to the first fixed contact side; An oscillator device that operates as an amplifier that outputs a frequency synchronized with a main oscillator, and operates as a self-excited oscillator separated from the main oscillator by switching to the second fixed contact side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19079184U JPH0246087Y2 (en) | 1984-12-18 | 1984-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19079184U JPH0246087Y2 (en) | 1984-12-18 | 1984-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61107211U JPS61107211U (en) | 1986-07-08 |
| JPH0246087Y2 true JPH0246087Y2 (en) | 1990-12-05 |
Family
ID=30748242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19079184U Expired JPH0246087Y2 (en) | 1984-12-18 | 1984-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246087Y2 (en) |
-
1984
- 1984-12-18 JP JP19079184U patent/JPH0246087Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61107211U (en) | 1986-07-08 |
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