JPS5853772Y2 - Load blinking control circuit - Google Patents
Load blinking control circuitInfo
- Publication number
- JPS5853772Y2 JPS5853772Y2 JP16785778U JP16785778U JPS5853772Y2 JP S5853772 Y2 JPS5853772 Y2 JP S5853772Y2 JP 16785778 U JP16785778 U JP 16785778U JP 16785778 U JP16785778 U JP 16785778U JP S5853772 Y2 JPS5853772 Y2 JP S5853772Y2
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- load
- operational amplifier
- inverting input
- point
- 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
Landscapes
- Dc-Dc Converters (AREA)
- Electronic Switches (AREA)
Description
【考案の詳細な説明】
本考案の負荷点滅制御回路は、制御入力端子の電圧値に
応じてランプ等の負荷を滅灯状態より点滅動作へ、ある
いは負荷を点灯状態より点滅動作へ行わせることを目的
とする簡単な回路を提供するものである。[Detailed description of the invention] The load blinking control circuit of the present invention is capable of causing a load such as a lamp to change from an off state to a blinking operation, or to change a load from a lit state to a blinking operation, depending on the voltage value of a control input terminal. This provides a simple circuit for the purpose of
本考案の一実施例を図面上ともに説明する。An embodiment of the present invention will be described with reference to the drawings.
ｏｐは演算増幅器で、抵抗Ｒ１、Ｒ２ｙ Ｒ３ｙ Ｒ４
、コンデンサＣ１により無安定マルチバイブレータを構
成する。OP is an operational amplifier, resistors R1, R2y R3y R4
, and capacitor C1 constitute an astable multivibrator.
Ｐ点は制御入力端子で、全２点の電圧値が高くスイッチ
５Ｗ−ｂ″−０ＦＦ（オープン）状態の時を考える。Point P is a control input terminal, and consider a case where the voltage values at all two points are high and the switch 5W-b''-0FF (open).
Ｐ点の電圧が高いため、Ａ点の電圧は高く、演算増幅器
ＯＰはコンパレータとして動作し、Ｂ点の電圧は低い。Since the voltage at point P is high, the voltage at point A is high, operational amplifier OP operates as a comparator, and the voltage at point B is low.
従ってトランジスタＴｒはＯＦＦであり、ランプＬは滅
灯状態にある。Therefore, the transistor Tr is OFF and the lamp L is off.
Ｐ点の電圧が低くなればダイオードＤ１によって演算増
幅器ＯＰは無安定マルチバイブレータとして、規定の周
波数で発振する。When the voltage at point P becomes low, diode D1 causes operational amplifier OP to oscillate at a specified frequency as an astable multivibrator.
従って、Ｂ点の電圧は無安定マルチバイブレータの周波
数で高くなったり、低くなったりするため、トランジス
タＴｒはＯＮ、ＯＦＦをくり返し、従ってランプＬは点
滅動作をする。Therefore, since the voltage at point B increases or decreases depending on the frequency of the astable multivibrator, the transistor Tr repeats ON and OFF, and therefore the lamp L blinks.
次に、スイッチＳＷをＯＮ（導通）にした場合を考える
。Next, consider the case where the switch SW is turned on (conducting).
Ｐ点の電圧が高い場合、前述の如くＢ点の電圧は低くな
る。When the voltage at point P is high, the voltage at point B becomes low as described above.
また、ダイオードＤ３を通じてＰ点の高い電圧は０点に
導通され、０点の電圧は高くなる。Further, the high voltage at point P is conducted to point 0 through diode D3, and the voltage at point 0 becomes high.
このときダイオードＤ２により０点の電圧はＢ点の電圧
値が低くても高く保持できる。At this time, the voltage at point 0 can be kept high by the diode D2 even if the voltage value at point B is low.
従って、トランジスタＴｒはＯＮＬ、ランプＬは点灯状
態にある。Therefore, the transistor Tr is ON and the lamp L is in the lighting state.
Ｐ点の電圧が低くなった時には、前述の如く演算増幅器
ＯＰで構成される無安定マルチバイブレータが動作を開
始し、Ｂ点の電圧はマルチバイブレータの発振の周波数
に合わせ高くなったり、低くなったりする。When the voltage at point P becomes low, the astable multivibrator consisting of the operational amplifier OP starts operating as described above, and the voltage at point B increases or decreases in accordance with the oscillation frequency of the multivibrator. do.
また、ダイオードＤ３により０点の電圧はＢ点とほぼ同
じ電圧になり、トランジスタＴｒは０Ｎ−ＯＦＦＬ、、
ランプは点滅をくり返す。Also, the voltage at point 0 becomes almost the same voltage as point B due to diode D3, and transistor Tr becomes 0N-OFFL.
The lamp blinks repeatedly.
この状態をまとめると、下の表に記すようになる。This situation can be summarized as shown in the table below.
このように本回路は通常ランプＬを滅灯にしておき、こ
れを点滅灯に切りかえる回路をダイオードＤ３１本挿入
するだけで通常点灯より、点滅灯動作へ簡単に切りかえ
ることができ、かつ簡単なものである。In this way, this circuit normally leaves the lamp L off and switches it to a blinking light by simply inserting 31 diodes D, and it is easy to switch from normal lighting to blinking light operation. It is.
この場合、負荷をランプとして説明してきたが、負荷と
してランプ以外のものを用いても同様である。In this case, the explanation has been made using a lamp as the load, but the same applies even if something other than a lamp is used as the load.
図は本考案に係る負荷点滅制御回路の一実施例を示す回
路図である。
Ｐ・・・・・・制御入力端子、ＯＰ・・・・・・演算増
幅器、Ｄｌ・・・・・・第１のダイオード、Ｄ２・・・
・・・第３のダイオード、Ｄ３・・・・・・第２のダイ
オード、ＳＷ・・・・・・スイッチ、Ｔｒ・・・・・・
負荷制御用トランジスタ、Ｒ４・・・・・・第１の抵抗
、Ｒ３・・・・・偲２の抵抗、Ｃ１・・・・・・コンデ
ンサ、Ｌ・・・・・・負荷（ランプ）。The figure is a circuit diagram showing an embodiment of the load blinking control circuit according to the present invention. P... Control input terminal, OP... Operational amplifier, Dl... First diode, D2...
...Third diode, D3...Second diode, SW...Switch, Tr...
Load control transistor, R4... first resistor, R3... second resistor, C1... capacitor, L... load (lamp).
Claims (1)
記非反転入力端子と出力端子とを第１の抵抗で接続し、
かつ前記演算増幅器の反転入力端子とアース間にコンデ
ンサを接続し、さらに前記反転入力端子と出力端子とを
第２の抵抗で接続してなる無安定マルチバイブレータの
出力で負荷制御用トランジスタを駆動し負荷を点滅する
構成とし、前記演算増幅器の反転入力端子に制御入力端
子よりその演算増幅器の反転入力端子５順方向になるよ
う第１のダイオードを接続し、かつ前記制御入力端子よ
りスイッチを介して前記負荷制御用トランジスタのベー
スに向って順方向になるよう第２のダイオードを接続し
、さらに前記演算増幅器の出力端子より前記負荷制御用
トランジスタのベースに向って順方向になるよう第３の
ダイオードを接続してなる負荷点滅制御回路。A reference voltage is applied to a non-inverting input terminal of the operational amplifier, the non-inverting input terminal and the output terminal are connected through a first resistor,
and a load control transistor is driven by the output of an astable multivibrator formed by connecting a capacitor between the inverting input terminal of the operational amplifier and ground, and further connecting the inverting input terminal and the output terminal with a second resistor. The load is configured to blink, and a first diode is connected to the inverting input terminal of the operational amplifier so that the control input terminal is in the forward direction of the inverting input terminal 5 of the operational amplifier. A second diode is connected in a forward direction toward the base of the load control transistor, and a third diode is connected in a forward direction from the output terminal of the operational amplifier toward the base of the load control transistor. Connect it to the load flashing control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16785778U JPS5853772Y2 (en) | 1978-12-05 | 1978-12-05 | Load blinking control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16785778U JPS5853772Y2 (en) | 1978-12-05 | 1978-12-05 | Load blinking control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5587741U JPS5587741U (en) | 1980-06-17 |
| JPS5853772Y2 true JPS5853772Y2 (en) | 1983-12-07 |
Family
ID=29168444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16785778U Expired JPS5853772Y2 (en) | 1978-12-05 | 1978-12-05 | Load blinking control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853772Y2 (en) |
-
1978
- 1978-12-05 JP JP16785778U patent/JPS5853772Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5587741U (en) | 1980-06-17 |
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