JPS60180774U

JPS60180774U - Ignition system for internal combustion engines

Info

Publication number: JPS60180774U
Application number: JP6769184U
Authority: JP
Inventors: 湯川　秀樹
Original assignee: 国産電機株式会社
Priority date: 1984-05-09
Filing date: 1984-05-09
Publication date: 1985-11-30

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図は本考案の一実施例を示した回路図、第２図及び
第３図はそれぞれ第１図の実施例で用いる信号供給回路
用電源回路の異なる変形例を示した回路図、第４図は従
来例を示した回路図であ　　−る。１・・・点火コイル、２・・・点火プラグ、３・・・コ
ンデ　　　′ンサ、４・・・サイリスタ（１次電流制御
用半導体スイッチ）、５・・・エキサイタコイル、８・
・・信号コイル１．１１・・・ダイオード、２０・・・
信号電源用コンデンサ、２１・・・ダイオード、２２・
・・抵抗、２５・・・第１のトランジスタ、２８・・・
ダイオード、３０・・・第２のトランジスタ、３１．３
３・・・抵抗。FIG. 1 is a circuit diagram showing one embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams showing different modifications of the power supply circuit for the signal supply circuit used in the embodiment of FIG. Figure 4 is a circuit diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... Ignition coil, 2... Spark plug, 3... Capacitor, 4... Thyristor (semiconductor switch for primary current control), 5... Exciter coil, 8...
...Signal coil 1.11...Diode, 20...
Signal power supply capacitor, 21... diode, 22...
...Resistor, 25...First transistor, 28...
Diode, 30...Second transistor, 31.3
3...Resistance.

Claims

[Claims for Utility Model Registration] An ignition coil, a primary current supply power supply circuit that supplies a primary current to the ignition coil using an exciter coil provided in a magnet generator that rotates synchronously with an internal combustion engine as a power source, and a control A semiconductor switch for primary current control that conducts when a conductive signal is supplied to a terminal to suddenly change the primary current, and a semiconductor switch for determining the ignition timing of the internal combustion engine in synchronization with the rotation of the internal combustion engine. An ignition device for an internal combustion engine, comprising: a signal coil that generates a signal; and a signal supply circuit that receives an output signal of the signal coil and applies the conduction signal to a control terminal of the semiconductor switch at the ignition timing of the internal combustion engine, The signal supply circuit includes a signal power supply capacitor connected to both ends of the exciter coil through a diode so as to be charged to one polarity by the output of the exciter coil, and a signal for the signal coil to determine the ignition timing. a first transistor provided so that a base current flows and becomes conductive in response to the signal when the signal is generated; and a first transistor provided so that the base current flows through the first transistor and becomes conductive, and when the signal becomes conductive, the first transistor connected between the signal power supply capacitor and the control terminal of the semiconductor switch so as to discharge the electric charge of the power supply capacitor through the control terminal of the primary current control semiconductor switch and provide the conduction signal to the semiconductor switch. An ignition device for an internal combustion engine, comprising a second transistor.