JPH0256862U

JPH0256862U -

Info

Publication number: JPH0256862U
Application number: JP13649788U
Authority: JP
Priority date: 1988-10-19
Filing date: 1988-10-19
Publication date: 1990-04-24
Anticipated expiration: 2003-10-19
Also published as: JPH0545823Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示した回路図、第２
図は本考案の他の実施例の要部を示した回路図、
第３図は第１図の各部の電圧波形図、第４図は従
来例の要部を示した回路図である。１……第１の点火回路、１００……第１の点火
コイル、１０１……第１の点火エネルギー蓄積用
コンデンサ、１０２……第１の放電制御用サイリ
スタ、２……第２の点火回路、２００……第１の
点火コイル、２０１……第１の点火エネルギー蓄
積用コンデンサ、２０２……第１の放電制御用サ
イリスタ、３……低速用エキサイタコイル、４…
…高速用エキサイタコイル、５……点火時期制御
装置、６〜９，１０，１１，１４〜１７，３１，
３２……ダイオード、１２……第１のコンデンサ
、１３……第２のコンデンサ、１８……電源コン
デンサ、１９，２０……サイリスタ、２１，２２
，３３……ツエナーダイオード、２３〜２６，３
４，３５……抵抗器。 Figure 1 is a circuit diagram showing an embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram showing the main parts of another embodiment of the present invention.
FIG. 3 is a voltage waveform diagram of each part of FIG. 1, and FIG. 4 is a circuit diagram showing the main parts of the conventional example. 1... First ignition circuit, 100... First ignition coil, 101... First ignition energy storage capacitor, 102... First discharge control thyristor, 2... Second ignition circuit, 200...First ignition coil, 201...First ignition energy storage capacitor, 202...First discharge control thyristor, 3...Low speed exciter coil, 4...
...High-speed exciter coil, 5...Ignition timing control device, 6-9, 10, 11, 14-17, 31,
32... Diode, 12... First capacitor, 13... Second capacitor, 18... Power supply capacitor, 19, 20... Thyristor, 21, 22
,33... Zener diode, 23-26,3
4,35...Resistor.

Claims

[Claims for Utility Model Registration] (1) An ignition circuit that obtains a high voltage for ignition by discharging the charge of an ignition energy storage capacitor to the primary coil of an ignition coil, and an AC voltage that is synchronized with the rotation of an internal combustion engine. an ignition timing control device for controlling ignition timing of the ignition circuit; An ignition device for an internal combustion engine comprising: a power supply circuit that obtains a DC voltage for driving the ignition timing control device as a power supply, the power supply circuit comprising: first and second capacitors; a power supply capacitor; and the exciter coil. a first capacitor charging circuit for charging the first capacitor to one polarity through the ignition energy storage capacitor without going through a resistor with the output of the positive half cycle of the exciter coil; a second capacitor charging circuit that charges the second capacitor to one polarity without passing through a resistor at its output; and a power supply capacitor charging circuit that discharges the electric charge of the second capacitor to the power supply capacitor to charge the power supply capacitor. (2) A first ignition circuit that obtains a high voltage for ignition by discharging the charge of the first ignition energy storage capacitor to the primary coil of the first ignition coil, and a second ignition energy storage capacitor. a second ignition circuit that obtains a high voltage for ignition by discharging electric charge to the primary coil of the second ignition coil; an exciter coil that supplies a charging current to the first ignition energy storage capacitor with a half-cycle output and supplies a receiving current to the second ignition energy storage capacitor with a negative half-cycle output; and an ignition device for an internal combustion engine, comprising an ignition timing control device that controls the ignition timing of a second ignition circuit, and a power supply circuit that uses the exciter coil as a power source to obtain a DC voltage for driving the ignition timing control device. , the power supply circuit includes: first and second capacitors; a power supply capacitor; and a positive half-cycle output of the exciter coil that passes through the first ignition energy storage capacitor without passing through a resistor. a first capacitor charging circuit for charging a capacitor to one polarity; and a negative half-cycle output of the exciter coil to charge the second capacitor to one polarity through the second ignition energy storage capacitor without going through a resistor. a second capacitor charging circuit that charges to the polarity of the first and second capacitors; and a second capacitor charging circuit that discharges the charges of the first and second capacitors to the power supply capacitor when the terminal voltages of the first and second capacitors exceed a set value. An ignition device for an internal combustion engine, comprising a power capacitor charging circuit that charges the power capacitor.