JPS5971060U

JPS5971060U - igniter

Info

Publication number: JPS5971060U
Application number: JP16644482U
Authority: JP
Inventors: 下村　司朗; 博上田; 仲　忠▲み▼
Original assignee: 株式会社村田製作所
Priority date: 1982-11-02
Filing date: 1982-11-02
Publication date: 1984-05-14
Also published as: JPS6319733Y2

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の点火装置の回路図である。、　１・・・・・・ＤＣ−ＤＣコンバータ、２・・・・
・・電池、３・・・・・・電源スィッチ、９・・・・・
・火花放電発生回路、１５・・・・・・タイマー駆動巻
線、１６・・・・・・ダイオード、１７・・・・・・平
滑コンデンサ、１８・・・・・・タイマー回路。補正　昭５８．　６．１５実用新案登録請求の範囲、図面の簡単な説明を次のよう
に補正する。Ｏ実用新案登録請求の範囲電池を入力電源とするＤＣ−ＤＣコンバータの出力側に
、コンデンサと昇圧トランスと第１のスイッチング素子
との閉回路で構成した火花放電発生回路を接続してなる
点火装置において、前記ＤＣ−ＤＣコンバータのトラン
スと磁気結合してタイマー駆動用巻線を設けるとともに
、このタイマー駆動用巻線に整流回路を接続して前記入
力電源の電池よりも大きな直流電圧を取り出し、この直
流電圧により動作して所定時間後に第２のスイッチング
素子を導通せしめる第３のスイッチング素子を含むタイ
マー回路を、その第２のスイッチング素子が前記ＤＣ−
ＤＣコンバータの発振トランジス　　　゛りのベース回
路とアースとの間に接続されるよう　　　−にして設け
たことを特徴とする点火装置。図面の簡単な説明第１図は本考案の一実施例の点火装置の回路図、第２図
、第３図はそれぞれ本考案に係る点火装置の火花放電発
生回路部の変形例を示す回路図、第４図、第５図はくれ
ぞれ本考案に係る点火装置のタイマー回路部の変形例を
示す図である。１・・・ＤＣ−ＤＣコンバータ、２・・・電池、３・・
・電源スィッチ、９・・・火花放電発生回路、１５・・
・タイマー駆動用巻線、１６・・・ダイオード、１７・
・・平滑コンデンサ、１Ｂ・・・タイマー回路。FIG. 1 is a circuit diagram of an ignition device according to an embodiment of the present invention. , 1...DC-DC converter, 2...
...Battery, 3...Power switch, 9...
- Spark discharge generation circuit, 15... Timer drive winding, 16... Diode, 17... Smoothing capacitor, 18... Timer circuit. Amended 1984. 6.15 The claims for utility model registration and the brief description of the drawings are amended as follows. O Utility Model Registration Claims An ignition device comprising a spark discharge generating circuit configured with a closed circuit of a capacitor, a step-up transformer, and a first switching element connected to the output side of a DC-DC converter that uses a battery as an input power source. A timer driving winding is magnetically coupled to the transformer of the DC-DC converter, and a rectifier circuit is connected to the timer driving winding to extract a DC voltage higher than that of the battery of the input power source. A timer circuit including a third switching element that is operated by a DC voltage and makes the second switching element conductive after a predetermined time;
An ignition device characterized in that it is connected between a base circuit of an oscillating transistor of a DC converter and ground. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of an ignition device according to an embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams showing modified examples of the spark discharge generating circuit portion of the ignition device according to the present invention. , FIG. 4, and FIG. 5 are diagrams showing modified examples of the timer circuit portion of the ignition device according to the present invention. 1...DC-DC converter, 2...Battery, 3...
・Power switch, 9...Spark discharge generation circuit, 15...
・Timer drive winding, 16...diode, 17.
...Smoothing capacitor, 1B...Timer circuit.

Claims

[Scope of utility model registration request]

An ignition device comprising a spark discharge generating circuit in which a first switching element is connected in parallel to a series circuit of a capacitor and a step-up transformer is connected to the output side of a DC-DC converter that uses a battery as an input power source. A timer driving winding is magnetically coupled to the transformer of the converter, and a DC voltage higher than that of the battery of the input power source is extracted through a rectifier circuit, and this DC voltage is used to turn on the second switching element after a predetermined time. PU for conduction
1. An ignition device comprising: a timer circuit having a second switching element connected between the base circuit of the oscillation transistor of the DC-DC converter and ground.