Patent attributes
A fuel injection device for an internal combustion engine including: an injector that injects fuel to be supplied to the internal combustion engine; a battery to which a DC converter that charges a capacitor of a capacitor discharge ignition circuit is connected as a load; a control portion that is provided to operate when a power supply voltage is provided from the battery through a power supply circuit, and generates an injection command signal when fuel injection timing is detected; and an injector drive circuit that applies a driving voltage from the battery to the injector while receiving the injection command signal, wherein the device further comprises converter operation stopping portion for stopping an operation of the DC converter during set load driving stop time when the injection command signal is generated.
