JPS63113770U

JPS63113770U -

Info

Publication number: JPS63113770U
Application number: JP582587U
Authority: JP
Priority date: 1987-01-19
Filing date: 1987-01-19
Publication date: 1988-07-22

Description

[Brief explanation of drawings]

第１図及び第２図はそれぞれ本考案の異なる実
施例を示した回路図、第３図は従来例を示した回
路図である。１Ａ，１Ｂ……点火コイル、２Ａ，２Ｂ……点
火エネルギー蓄積用コンデンサ、３Ａ，３Ｂ……
放電制御用サイリスタ、６Ｌ，６Ｈ……エキサイ
タコイル、７Ａ，７Ｂ……点火時期制御回路、８
……パルサコイル、９Ａ，９Ｂ……パルサ信号増
幅回路、１０……電源回路、１１……ダイオード
、１２……電源コンデンサ、１３……電圧調整用
サイリスタ、１４〜１６……抵抗、１７……ツエ
ナーダイオード、２１Ａ，２１Ｂ，２３Ａ，２３
Ｂ，３０〜３３……ダイオード、２４……阻止用
ダイオード、３５，３８……抵抗、３６……トラ
ンジスタ（電源コンデンサ初期充電用スイツチ素
子）、３７……ダイオード、３９……トランジス
タ、４１……電源コンデンサ初期充電回路、４２
……スイツチ制御回路。 1 and 2 are circuit diagrams showing different embodiments of the present invention, and FIG. 3 is a circuit diagram showing a conventional example. 1A, 1B...Ignition coil, 2A, 2B...Ignition energy storage capacitor, 3A, 3B...
Discharge control thyristor, 6L, 6H...exciter coil, 7A, 7B...ignition timing control circuit, 8
...Pulser coil, 9A, 9B...Pulser signal amplification circuit, 10...Power supply circuit, 11...Diode, 12...Power supply capacitor, 13...Voltage adjustment thyristor, 14-16...Resistor, 17...Zener Diode, 21A, 21B, 23A, 23
B, 30-33...Diode, 24...Blocking diode, 35, 38...Resistor, 36...Transistor (switch element for initial charging of power supply capacitor), 37...Diode, 39...Transistor, 41... Power supply capacitor initial charging circuit, 42
...Switch control circuit.

Claims

[Claims for Utility Model Registration] An ignition coil and an ignition energy storage capacitor that is charged to one polarity by the output of an exciter coil that induces an alternating current voltage in synchronization with an internal combustion engine;
a discharge control thyristor provided to discharge the charge of the ignition energy storage capacitor through the primary coil of the ignition coil when conductive; and an ignition timing control circuit that controls the timing of applying an ignition signal to the thyristor; , a power supply circuit having a power supply capacitor connected in series to the ignition energy storage capacitor and charged to one polarity through the ignition energy storage capacitor by the output of the exciter coil; a blocking diode connected between the ignition energy storage capacitor and the primary coil of the ignition coil to prevent charging current from flowing through the primary coil of the ignition coil; The ignition device for an internal combustion engine uses the power supply voltage of the ignition timing control circuit, comprising a switch element for charging the power supply capacitor provided between the exciter coil and the power supply capacitor, and the power supply is supplied from the exciter coil through the switch element. A power supply capacitor initial charging circuit that flows charging current to the capacitor; and a power supply capacitor charging switch element that allows conduction when the terminal voltage of the power supply capacitor is below a set value, and when the terminal voltage of the power supply capacitor exceeds the set value. An ignition device for an internal combustion engine, comprising a switch control circuit that controls the power capacitor charging switch element so as to sometimes turn off the power capacitor charging switch element.