JPS6348972U

JPS6348972U -

Info

Publication number: JPS6348972U
Application number: JP14236386U
Authority: JP
Priority date: 1986-09-17
Filing date: 1986-09-17
Publication date: 1988-04-02

Description

[Brief explanation of the drawing]

第１図及び第２図はそれぞれ本考案の異なる実
施例を示す回路図、第３図は本考案の実施例と従
来例における電源回路の出力電流と機関の回転数
との関係を、負荷の駆動電流と回転数との関係と
共に示す線図、第４図は従来の装置の構成例を示
した回路図である。１……点火コイル、２……点火エネルギー蓄積
用コンデンサ、３……放電制御用サイリスタ、５
Ａ……低速用エキサイタコイル、５Ｂ……高速用
エキサイタコイル、６Ａ，６Ｂ，７，１４，１５
，Ｄ１〜Ｄ５……ダイオード、９，Ｓ１……サイ
リスタ、１０〜１２，Ｒ１〜Ｒ４……抵抗、１３
，ＺＤ……ツエナーダイオード、１６，１６′…
…定電圧回路、２０……点火時期制御回路、２１
……信号コイル、３０……タコメータ。 Figures 1 and 2 are circuit diagrams showing different embodiments of the present invention, and Figure 3 shows the relationship between the output current of the power supply circuit and the engine rotation speed in the embodiment of the present invention and the conventional example. FIG. 4 is a diagram showing the relationship between drive current and rotational speed, and a circuit diagram showing an example of the configuration of a conventional device. 1... Ignition coil, 2... Capacitor for ignition energy storage, 3... Thyristor for discharge control, 5
A...Low speed exciter coil, 5B...High speed exciter coil, 6A, 6B, 7, 14, 15
, D1-D5...Diode, 9, S1...Thyristor, 10-12, R1-R4...Resistor, 13
, ZD... Zener diode, 16, 16'...
... Constant voltage circuit, 20 ... Ignition timing control circuit, 21
...Signal coil, 30...Tachometer.

Claims

[Claims for Utility Model Registration] An ignition coil, an exciter coil that induces an alternating current voltage in synchronization with the rotation of an internal combustion engine, an ignition energy storage capacitor connected to the primary side of the ignition coil, and the exciter coil. an ignition energy storage capacitor charging circuit that charges the ignition energy storage capacitor to one polarity with a positive output current of; a power supply circuit that converts the AC output voltage of the exciter coil into a DC voltage, and a trigger signal that is driven by the power supply circuit to the discharge control thyristor at the ignition timing of the internal combustion engine. In the ignition device for an internal combustion engine, the power supply circuit includes: a power supply capacitor; and a first circuit that charges the power supply capacitor to one polarity with a negative output current of the exciter coil. for an internal combustion engine, comprising: a power supply capacitor charging circuit; and a second power supply capacitor charging circuit that charges the power supply capacitor to one polarity with the positive output current of the exciter coil. Ignition device.