发明名称 |
IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE |
摘要 |
<p>It is an object of the present invention to provide an ignition system for an internal combustion engine which accomplishes a stable current blocking operation of an ignition coil. A main IGBT (110) controls to conduct or block a primary current flowing through the ignition coil in response to an input ignition control signal to generate a high voltage on the secondary side of the ignition coil. The main IGBT (110) and a current limiter circuit (150) are integrated in a monolithic silicon substrate of an insulating gate bipolar power transistor. The main IGBT has a collector and a gate connected through a depletion IGBT (152) forming part of a constant current circuit, and a resistor (R4). When a voltage generated across the resistor (R4) becomes equal to or higher than a zener voltage, a zener diode (ZD2) leads this current to an emitter of the main IGBT. <IMAGE></p> |
申请公布号 |
EP1284362(A1) |
申请公布日期 |
2003.02.19 |
申请号 |
EP20000931577 |
申请日期 |
2000.05.26 |
申请人 |
HITACHI, LTD.;HITACHI CAR ENGINEERING CO., LTD. |
发明人 |
ITO, TAKASHI;KOBAYASHI, RYOICHI;SUGIURA, NOBORU;FUKATSU, KATSUAKI |
分类号 |
F02P3/04;F02P3/05;F02P3/055;H03K17/0814;H03K17/082;(IPC1-7):F02P3/04 |
主分类号 |
F02P3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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