JPS6018272U

JPS6018272U - Ignition system for internal combustion engines

Info

Publication number: JPS6018272U
Application number: JP8398784U
Authority: JP
Inventors: 高見　悟; 中村　普
Original assignee: 自動車機器技術研究組合
Priority date: 1984-06-06
Filing date: 1984-06-06
Publication date: 1985-02-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図Ａ、　Ｂは従来例における点火装置の回路図、第
２図Ａ−Ｈは第１図Ａの回路の波形図、第３図は本考案
における点火装置の第１実施例の回路図、第４図Ａ、　
Ｂ、　Ｃおよびり、　Ｅは夫々本考案の第１及び第２実
施例における回路の波形図、第５図は本考案における点
火装置の第２実施例の回路図、゛第６図Ａ、　Ｂ、　Ｃ
は本考案における第３実施例の回路図、第７図Ａ、　Ｂ
、　Ｃは本考案の第３実施例における回路の波形図であ
る。４・・・・・・発振回路、５・・・・・・波形整形回路
、７・・・・・・増幅回路の負荷抵抗、１０・・・・・
・遮断用トランジスタ、１３・・・・・・イグニション
コイル、１４・・・・・・点火プラグ、１８および２７
・・・・・・制御トランジスタ。Figures 1A and B are circuit diagrams of the ignition device in the conventional example, Figures 2A-H are waveform diagrams of the circuit in Figure 1A, and Figure 3 is a circuit diagram of the first embodiment of the ignition system in the present invention. , Figure 4A,
B, C, and E are respectively waveform diagrams of the circuits in the first and second embodiments of the present invention, and FIG. 5 is a circuit diagram of the second embodiment of the ignition device in the present invention. , C
7A and B are circuit diagrams of the third embodiment of the present invention.
, C is a waveform diagram of a circuit in a third embodiment of the present invention. 4...Oscillation circuit, 5...Waveform shaping circuit, 7...Load resistance of amplifier circuit, 10...
- Cutoff transistor, 13...Ignition coil, 14...Spark plug, 18 and 27
...Control transistor.

Claims

[Claims for Utility Model Registration] 1. In a current interrupt type ignition device that cuts off and on the primary side current of the ignition coil according to the rotation of the engine and generates high voltage for ignition on the secondary side, supplying current to the ignition coil. a power source, a first means for generating an ignition signal in synchronization with the rotation of the engine, and a second means connected to the power source and converting the ignition signal from the first means into a current interruption control signal; a third means comprising a current interrupting switching element that operates according to the current interrupting control signal; a fourth means connected to the power source and detecting a noise voltage appearing in the power supply voltage; and fifth means for preventing the noise voltage from being input to the current interrupting switching element when the noise voltage is detected. 2. In claim 1 of the utility model registration claim, the fourth means is connected to the output end of the second means and the power source,
An ignition device for an internal combustion engine, characterized in that it detects the noise voltage appearing in the current interruption control signal and the power supply voltage. 3. An ignition device for an internal combustion engine as set forth in claim 1 or 2 of the utility model registration claim, characterized in that a transistor is used as the fifth means.