JPS62294766A - Ignition device for internal combustion engine - Google Patents
Ignition device for internal combustion engineInfo
- Publication number
- JPS62294766A JPS62294766A JP13902186A JP13902186A JPS62294766A JP S62294766 A JPS62294766 A JP S62294766A JP 13902186 A JP13902186 A JP 13902186A JP 13902186 A JP13902186 A JP 13902186A JP S62294766 A JPS62294766 A JP S62294766A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- ignition
- thyristor
- voltage
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 5
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 238000010586 diagram Methods 0.000 description 6
- 230000007257 malfunction Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】 ３、発明の詳細な説明 〔産業上の利用分骨〕 この発明は内燃機関点火装置に関するものである。[Detailed description of the invention] 3. Detailed description of the invention [Industrial use parts] This invention relates to an internal combustion engine ignition system.
従来装置を第２図に示す。図において、１１は発電コイ
ル、１２．１３はダイオード、１４は点火コンデンサ、
１５は点火コイル、１６は点火プラグ １７？ｔサイリ
スタであＡ−又−１はサイリスタ、２はツェナーダイオ
ード、３は抵抗で、これらにより点火コンデンサ１４の
充電々圧を制御する定電圧回路が形成される。又、４は
点火信号を発生する点火制御回路である。さらに、５，
８は抵抗、６はサイリスク、７はツェナーダイオード、
９はダイオード、１０はコンデンサで、これらにより点
火制御回路４を動作させる電源回路を構成する。A conventional device is shown in FIG. In the figure, 11 is a generator coil, 12 and 13 are diodes, 14 is an ignition capacitor,
15 is the ignition coil, 16 is the spark plug 17? t thyristor, A- or -1 is a thyristor, 2 is a Zener diode, and 3 is a resistor, and a constant voltage circuit for controlling the charging voltage of the ignition capacitor 14 is formed by these. Further, 4 is an ignition control circuit that generates an ignition signal. Furthermore, 5,
8 is a resistor, 6 is a Sirisk, 7 is a Zener diode,
A diode 9 and a capacitor 10 constitute a power supply circuit for operating the ignition control circuit 4.
上記構成において、発電コイル１１の出力によりダイオ
ード１３を介してコンデンサ１４が充電される。ここで
、点火制御回路４から点火信号が発生されると、サイリ
スタ１７がオンしてコンデンサ１４の充電々荷がサイリ
スタ１７および点火コイル１５を介して放電し、これに
より点火プラグ１６も放電して機関が点火される。In the above configuration, the capacitor 14 is charged by the output of the power generating coil 11 via the diode 13. Here, when an ignition signal is generated from the ignition control circuit 4, the thyristor 17 is turned on, and the charge in the capacitor 14 is discharged via the thyristor 17 and the ignition coil 15, thereby also discharging the spark plug 16. The engine is ignited.
ところで、上記の従来装置では、第４図の点線に示すよ
うに点火コンデンサ１４の充電々圧が高くなり過ぎると
、各素子や点火コイル１５′！！−損傷する恐れがある
ため、充電々圧が所定値になるとツェナーダイオード２
のオンによりサイリスタ１をオンし、発電コイル１１の
出力をサイリスタ１により側路し、充電々圧を所定値に
抑−ＩＪ している。By the way, in the above-mentioned conventional device, if the charging voltage of the ignition capacitor 14 becomes too high as shown by the dotted line in FIG. 4, each element and the ignition coil 15'! ! - Zener diode 2 should
When turned on, the thyristor 1 is turned on, the output of the generating coil 11 is bypassed by the thyristor 1, and the charging pressure is suppressed to a predetermined value.
しかし、サイリスタ１がオンすると発電コイル１１の出
力が短絡されるために、電源回路の電圧が第５図の点線
に示すように定電圧制御ができないレベルまで下がって
しまう。However, when the thyristor 1 is turned on, the output of the generator coil 11 is short-circuited, so that the voltage of the power supply circuit drops to a level where constant voltage control is no longer possible, as shown by the dotted line in FIG.
この発明は上記のような問題点を解決するために成され
たものであり、定電圧回路の動作時における点火制御回
路の電源電圧の落ち込みを防止することができる内燃機
関点火装置を得ることを目的とする。This invention has been made to solve the above-mentioned problems, and aims to provide an internal combustion engine ignition device that can prevent the power supply voltage of the ignition control circuit from dropping during operation of the constant voltage circuit. purpose.
この発明に係る内燃機関点火装置は、定電圧回路の出力
端を電源回路に接続したものである。The internal combustion engine ignition device according to the present invention has an output end of a constant voltage circuit connected to a power supply circuit.
この発明においては、定電圧回路が動作した場合、発電
コイルの出力は動作状態の定電圧回路を介して電源回路
に供給されるので、電源回路の出力電圧に落ち込みは生
じない。In this invention, when the constant voltage circuit operates, the output of the generator coil is supplied to the power supply circuit via the constant voltage circuit in the operating state, so that the output voltage of the power supply circuit does not drop.
以下、この発明の実施例を図面とともに説明する。この
実施例においては、定電圧回路を構成するサイリスタ１
のカソードおよびそのＰ−）トリガ電圧を生じる抵抗３
の一端ｔ−電源回路を構成するサイリスタ６のアノード
に接続する。他の構成は第２図の従来装置と同様である
。Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, a thyristor 1 constituting a constant voltage circuit is used.
cathode of and its P-) resistor 3 producing the trigger voltage
One end of t is connected to the anode of the thyristor 6 constituting the power supply circuit. The other configurations are the same as the conventional device shown in FIG.
上記構成において、点火コンデンサ１４の充電々圧が所
定値に達すると、ツェナーダイオード２が導通してサイ
リスタｌも導通する。従って、発電コイル１の出力が抵
抗５を介さずにサイリスタ１を介して電源回路□に印加
される。このため、電源回路の電圧は第５図の実線に示
すように落ち込みが生じない。In the above configuration, when the charging voltage of the ignition capacitor 14 reaches a predetermined value, the Zener diode 2 becomes conductive and the thyristor 1 also becomes conductive. Therefore, the output of the generator coil 1 is applied to the power supply circuit □ via the thyristor 1 without passing through the resistor 5. Therefore, the voltage of the power supply circuit does not drop as shown by the solid line in FIG.
第３図はこの発明の第２の実施例を示し、抵抗５に直列
にダイオード１８を接続するとともに、コンデンサ１９
を設けたものであって、発電コイル１１の負の半波でダ
イオード１２を介してコンデンサ１９を充電し、発電コ
イル１１の正の半波でコンデンサ１４に倍電圧を充電し
ようとするものであるが、この場合も前記実施例と同様
の効果を有する。FIG. 3 shows a second embodiment of the invention, in which a diode 18 is connected in series with the resistor 5, and a capacitor 19 is connected in series with the resistor 5.
This is intended to charge the capacitor 19 via the diode 12 with the negative half-wave of the generator coil 11, and charge the capacitor 14 with a double voltage with the positive half-wave of the generator coil 11. However, this case also has the same effect as the above embodiment.
又、図示してないが、過回転制御等において点火サイリ
スタエフのトリガを無効とする制御を行った場合におい
ても、サイリスタ１の導通制御により過回転制御回路の
電源電圧が確保され、誤動作は生じない。Although not shown, even if the trigger of the ignition thyristor F is disabled during overspeed control, etc., the power supply voltage for the overspeed control circuit is ensured by the conduction control of thyristor 1, and malfunctions will not occur. do not have.
以上のようにこの発明によれば、点火コンデンサの充電
々圧を制御する定電圧回路の出力端を点火制御回路の電
源回路に接続しており、定電圧回路の動作時にも発電コ
イルの出力は定電圧回路を介して電源回路に供給される
。このため、点火制御回路の電源が確保され、誤動作は
生じない。As described above, according to the present invention, the output end of the constant voltage circuit that controls the charging voltage of the ignition capacitor is connected to the power supply circuit of the ignition control circuit, and even when the constant voltage circuit is operating, the output of the generator coil is It is supplied to the power supply circuit via a constant voltage circuit. Therefore, the power supply for the ignition control circuit is ensured, and malfunctions do not occur.
第１図はこの発明装置の第１の実施例における回路図、
第２図は従来装置の回路図、第３図はこの発明装置の第
２の実施例における回路図、第４図はこの発明に係る点
火コンデンサの充電々圧特性図、第５図はこの発明に係
る点火制御回路の電源電圧特性図である。
１．６．１７・・・サイリスタ、２，７・・・ツェナー
ダイオード、３，５．８・・・抵抗、４・・・点火制御
回路、９・・・ダイオード、１０・・・コンデンサ、１
１・・・発電コイル、１４・・・点火コンデンサ、１５
・・・点火コイル、１７・・・サイリスタ。
尚、図中同一符号は同−又は相当部分を示す。FIG. 1 is a circuit diagram of a first embodiment of the device of the present invention;
Fig. 2 is a circuit diagram of a conventional device, Fig. 3 is a circuit diagram of a second embodiment of the inventive device, Fig. 4 is a charge-voltage characteristic diagram of an ignition capacitor according to this invention, and Fig. 5 is a diagram of the present invention. FIG. 3 is a power supply voltage characteristic diagram of the ignition control circuit according to the invention. 1.6.17... Thyristor, 2,7... Zener diode, 3,5.8... Resistor, 4... Ignition control circuit, 9... Diode, 10... Capacitor, 1
1... Generator coil, 14... Ignition capacitor, 15
...Ignition coil, 17...Thyristor. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
この充電々圧を制御する定電圧回路、点火コンデンサの
充電々荷を放電させて点火を行うための点火信号を発生
する点火制御回路、発電コイルの出力を電源とし点火制
御回路を動作させる電源回路を備え、定電圧回路の出力
端を電源回路に接続したことを特徴とする内燃機関点火
装置。(1) An ignition capacitor charged by the output of the generator coil,
A constant voltage circuit that controls this charge voltage, an ignition control circuit that generates an ignition signal to discharge the charge of the ignition capacitor and ignite, and a power supply circuit that operates the ignition control circuit using the output of the generator coil as a power source. An internal combustion engine ignition device characterized in that the output end of the constant voltage circuit is connected to a power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13902186A JPS62294766A (en) | 1986-06-12 | 1986-06-12 | Ignition device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13902186A JPS62294766A (en) | 1986-06-12 | 1986-06-12 | Ignition device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62294766A true JPS62294766A (en) | 1987-12-22 |
Family
ID=15235625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13902186A Pending JPS62294766A (en) | 1986-06-12 | 1986-06-12 | Ignition device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62294766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292067U (en) * | 1988-12-29 | 1990-07-20 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5812674B2 (en) * | 1977-07-28 | 1983-03-09 | ロツクウエル・インタ−ナシヨナル・コ−ポレ−ション | 1↓-level switch for magnetic bubble domain device |
| JPS58195065A (en) * | 1982-05-07 | 1983-11-14 | Nippon Denso Co Ltd | Contactless ignition device for internal-combustion engine |
-
1986
- 1986-06-12 JP JP13902186A patent/JPS62294766A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5812674B2 (en) * | 1977-07-28 | 1983-03-09 | ロツクウエル・インタ−ナシヨナル・コ−ポレ−ション | 1↓-level switch for magnetic bubble domain device |
| JPS58195065A (en) * | 1982-05-07 | 1983-11-14 | Nippon Denso Co Ltd | Contactless ignition device for internal-combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292067U (en) * | 1988-12-29 | 1990-07-20 |
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