JPS622445B2 - - Google Patents
Info
- Publication number
- JPS622445B2 JPS622445B2 JP1241381A JP1241381A JPS622445B2 JP S622445 B2 JPS622445 B2 JP S622445B2 JP 1241381 A JP1241381 A JP 1241381A JP 1241381 A JP1241381 A JP 1241381A JP S622445 B2 JPS622445 B2 JP S622445B2
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- output
- mono
- multivibrator
- drive signal
- 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
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Safety Devices In Control Systems (AREA)
- Electronic Switches (AREA)
Description
【発明の詳細な説明】
本発明は、間欠使用型ソレノイドをマイクロコ
ンピユータ等の演算処理装置の出力によつて制御
するような場合に用いる駆動装置に関し、プログ
ラムの暴走断線等によつて、ソレノイドの駆動用
パルスが所定以上に頻繁に出力されたり、連続駆
動されたときにでもその結果として起こりうるソ
レノイドの破損や発熱を防止することのできる装
置を提供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive device used when an intermittent use type solenoid is controlled by the output of an arithmetic processing device such as a microcomputer, and the present invention relates to a drive device used when an intermittent use type solenoid is controlled by the output of an arithmetic processing device such as a microcomputer. It is an object of the present invention to provide a device that can prevent damage to a solenoid and heat generation that may occur as a result even when drive pulses are output more frequently than a predetermined number or are continuously driven.
ソレノイドの駆動回路として、従来、図のよう
な回路が考えられている。図において、端子１に
加えられるソレノイド駆動信号が“Ｌ”（低レベ
ル）の場合、ダイオード２がオンし、トランジス
タ３，４がカツトオフとなり、ソレノイド５は駆
動されない。逆に、駆動信号が“Ｈ”（高レベ
ル）の場合は、トランジスタ３，４ともにオンと
なり、ソレノイド５に電流が流れ、ソレノイド５
は駆動される。 Conventionally, a circuit as shown in the figure has been considered as a solenoid drive circuit. In the figure, when the solenoid drive signal applied to terminal 1 is "L" (low level), diode 2 is turned on, transistors 3 and 4 are cut off, and solenoid 5 is not driven. Conversely, when the drive signal is "H" (high level), transistors 3 and 4 are both turned on, current flows to solenoid 5, and solenoid 5
is driven.
ところが、このソレノイド５が間欠使用型ソレ
ノイドの場合、上述のような事故が生じたときに
定格の通電率を過えて駆動すると、ソレノイド５
の破損や発熱が起こる可能性がある。 However, if the solenoid 5 is an intermittent type solenoid, if the above-mentioned accident occurs and the solenoid 5 is driven beyond the rated energization rate, the solenoid 5
damage or overheating may occur.
そこで、本発明は、ソレノイドの駆動信号がそ
のソレノイドの定格の通電率を過えるようなもの
になつた時でも、ソレノイドを保護することがで
きる駆動装置を提供するものである。第２図に本
発明の一実施例の回路図を、第３図にその回路の
タイミングチヤートを示す。第２図においては、
それぞれ異なつたパルス幅のパルスを出力する２
つのモノマルチバイブレータ６，７を有し、前段
のモノマルチ６は、端子８から加えられゲート９
によつて後段のモノマルチのQ2出力Ｄによつて
ゲートされたソレノイド駆動信号Ａのポジテイブ
エツジでトリガされ（但し、Q2は“Ｈ”とす
る）、その出力Q1，1は、ソレノイドが確実に動
作するようなパルス幅になるように決定する。 Therefore, the present invention provides a drive device that can protect a solenoid even when the drive signal for the solenoid exceeds the rated energization rate of the solenoid. FIG. 2 shows a circuit diagram of an embodiment of the present invention, and FIG. 3 shows a timing chart of the circuit. In Figure 2,
Outputs pulses with different pulse widths 2
It has two mono multi vibrators 6 and 7, and the mono multi vibrator 6 in the previous stage is applied from the terminal 8 to the gate 9.
is triggered by the positive edge of the solenoid drive signal A which is gated by the Q2 output D of the monomulti at the subsequent stage (however, Q2 is set to "H"), and its output Q1 , 1 is Determine the pulse width so that it operates reliably.
このようにして得られた前段のモノマルチ６の
1出力Ｃはゲート１２に入力され、後段のモノ
マルチ７はその1出力Ｃのネガテイブエツジで
トリガされて、モノマルチ７の出力Q2はＤのよ
うな波形となる。ここで、この後段のモノマルチ
７の出力パルス幅を決定する抵抗１３とコンデン
サ１４とを、間欠使用型ソレノイド５の許容通電
率を考慮して、Q1出力Ｂのパルス幅とQ2出力Ｄ
のパルス幅の比がソレノイド５の通電率をオーバ
ーしないように決定する。 The monomulti 6 of the previous stage obtained in this way
1 output C is input to the gate 12, and the subsequent monomulti 7 is triggered by the negative edge of the 1 output C, so that the output Q 2 of the mono multi 7 has a waveform like D. Here, the resistor 13 and capacitor 14 that determine the output pulse width of the monomulti 7 in the subsequent stage are set to
is determined so that the pulse width ratio does not exceed the energization rate of the solenoid 5.
このようにして得られた２個のモノマルチ６，
７の出力Ｂ，ＤをANDゲート１５の入力とし、
その出力Ｅを第１図のようなソレノイド駆動回路
の入力端子へと接続する。 Two monomultis 6 obtained in this way,
The outputs B and D of 7 are input to AND gate 15,
The output E is connected to the input terminal of a solenoid drive circuit as shown in FIG.
かかる第２図の回路において、今、例えば回路
素子の断線等の原因により、入力端子８に加えら
れるソレノイド駆動信号が“Ｈ”（高レベル）に
なつたままになつたとしても、前段モノマルチ６
の出力Ｂ，Ｃとしてはパルスが１個づつしか出力
されないため、ソレノイド５の定格通電率をオー
バすることはあり得ない。 In the circuit shown in FIG. 2, even if the solenoid drive signal applied to the input terminal 8 remains at "H" (high level) due to, for example, a disconnection of a circuit element, the previous monomultiple 6
Since only one pulse is output as outputs B and C, it is impossible for the rated energization rate of the solenoid 5 to be exceeded.
また、プログラムの暴走等によつて、ソレノイ
ド駆動信号Ａが、定格通電率を過えるような頻度
が発生された場合には、最初のソレノイド駆動信
号のポジテイブエツジとほぼ同時に後段のモノマ
ルチ７のQ2出力Ｄが“Ｈ”レベルになるため、
ゲートＡによつてその次のソレノイド駆動信号Ａ
が遮断されて前記のモノマルチ６のトリガ入力と
はならず、Q2出力Ｄが“Ｌ”レベルになるまで
前段のモノマルチ６のQ1出力が再び“Ｈ”レベ
ルとなることはない。この場合にもソレノイド５
の定格通電率を上まわることはない。以上のよう
に、ソレノイド駆動信号が加えられた場合でも、
本発明の回路によれば、ソレノイドの定格通電率
をオーバーすることがなくなり、通電率オーバー
によるソレノイドの破損や発熱を防止することの
できる実用的な駆動装置が得られるものである。 In addition, if the solenoid drive signal A frequently exceeds the rated energization rate due to program runaway, etc., the subsequent monomulti 7 will be activated at almost the same time as the positive edge of the first solenoid drive signal. Since Q2 output D becomes “H” level,
The next solenoid drive signal A by gate A
is cut off and does not become the trigger input of the mono multi 6, and the Q 1 output of the preceding mono multi 6 does not go to the "H" level again until the Q 2 output D goes to the "L" level. In this case as well, solenoid 5
The rated energization rate will not be exceeded. As mentioned above, even when a solenoid drive signal is applied,
According to the circuit of the present invention, the rated energization rate of the solenoid will not be exceeded, and a practical drive device can be obtained that can prevent damage to the solenoid and heat generation due to the energization rate exceeding the rated energization rate.
第１図は従来のソレノイド駆動装置の回路図、
第２図は本発明の一実施例におけるソレノイド駆
動装置の回路図、第３図はその各部の波形図であ
る。
５……ソレノイド、６，７……モノマルチバイ
ブレータ、８……入力端子、９，１２……ゲー
ト、１５……ゲート。
Figure 1 is a circuit diagram of a conventional solenoid drive device.
FIG. 2 is a circuit diagram of a solenoid drive device according to an embodiment of the present invention, and FIG. 3 is a waveform diagram of each part thereof. 5... Solenoid, 6, 7... Mono multivibrator, 8... Input terminal, 9, 12... Gate, 15... Gate.
Claims (1)
る２個のモノマルチバイブレータを有し、前段の
モノマルチバイブレータへのトリガ入力を後段の
モノマルチバイブレータの出力でゲートするよう
にし、後段のモノマルチバイブレータを前段のモ
ノマルチバイブレータの出力でトリガするように
し、前段のモノマルチバイブレータの出力と後段
のモノマルチバイブレータの出力との論理積によ
りソレノイド駆動パルスを得るようにしたことを
特徴とするソレノイド駆動装置。1 It has two mono multivibrators that output pulses with different pulse widths, and the trigger input to the mono multivibrator in the previous stage is gated by the output of the mono multivibrator in the latter stage, so that the mono multivibrator in the latter stage is A solenoid drive device characterized in that the trigger is triggered by the output of a mono-multivibrator in the previous stage, and the solenoid drive pulse is obtained by logical product of the output of the mono-multivibrator in the previous stage and the output of the mono-multivibrator in the latter stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1241381A JPS57126106A (en) | 1981-01-29 | 1981-01-29 | Driving device for solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1241381A JPS57126106A (en) | 1981-01-29 | 1981-01-29 | Driving device for solenoid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57126106A JPS57126106A (en) | 1982-08-05 |
| JPS622445B2 true JPS622445B2 (en) | 1987-01-20 |
Family
ID=11804571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1241381A Granted JPS57126106A (en) | 1981-01-29 | 1981-01-29 | Driving device for solenoid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57126106A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2536904B1 (en) * | 1982-11-29 | 1985-11-08 | Merlin Gerin | ELECTRONIC CONTROL CIRCUIT FOR A MULTI-OPERATION APPARATUS EQUIPPED WITH AN ELECTROMAGNET MECHANISM |
| JPS60158708U (en) * | 1984-03-31 | 1985-10-22 | アンリツ株式会社 | Intermittent drive solenoid burnout prevention circuit |
-
1981
- 1981-01-29 JP JP1241381A patent/JPS57126106A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57126106A (en) | 1982-08-05 |
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