发明名称 |
Ignition coil energizing circuit |
摘要 |
An ignition coil energizing circuit is provided which has a signal generator for generating an output signal having a frequency corresponding to an engine rotational speed, a switching circuit connected to an ignition coil, a current detector for detecting a current flowing through the ignition coil, a duty control for supplying to the switching circuit a control signal having a duty cycle corresponding to a duty cycle of an output signal from the signal generator and controlling a conduction state of the switching circuit, and a current control circuit for controlling the switching circuit in response to an output signal generated from the current detector and maintaining a current flowing through the current detector at a predetermined value. The ignition coil energizing circuit also has a timer for generating an output signal when the switching circuit is detected to be on over a predetermined period of time and a current supply circuit for supplying a gradually increasing current to the current detector in response to an output signal of the timer.
|
申请公布号 |
US4402299(A) |
申请公布日期 |
1983.09.06 |
申请号 |
US19810309054 |
申请日期 |
1981.10.06 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
NAKAO, SATOSHI;TAGUCHI, YASUO;HIGUCHI, TAKASHI |
分类号 |
F02P3/04;F02P3/05;F02P3/055;(IPC1-7):F02P1/00 |
主分类号 |
F02P3/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|