There is provided a single chip igniter such that it is possible to realize a reduction in operating voltage, an increase in noise tolerance, a reduction in size, and a reduction in cost. By reducing the gate threshold voltage of a MOS transistor 1, and re...

A shortest distance (d) between a drive circuit (4) and an electric wire (8b) is set such that an electric field caused by an electric current flowing in the electric wire (8b) that electrically connects an ignition-voltage generating device (IG) and an ig...

An individual ignition type ignition coil for use in an engine in which a center core, a secondary coil wound on a secondary bobbin and a primary coil wound on a primary bobbin are installed concentrically from an inner side of a coil case in order, and sa...