Ignition device

An ignition device that causes ignition plugs to ignite, comprising:

• an ignition transformer that includes a primary winding including a first and second ends and a secondary winding including first and second ends, the primary and secondary windings electromagnetically coupled to each other;
• a battery connected to the first end of the primary winding;
• a switch that is connected to the second end of the primary winding and is turned on or off in response to an ignition signal;
• saturable reactors, the number of which corresponds to the number of the ignition plugs, the saturable reactors each comprising:
• a saturable core;
• a first winding including a first and a second ends;
• and
• a second winding including a first and a second ends, wherein
• the first and second windings electromagnetically coupled to each other, the first end of the first winding connected to the first end of the second winding, the second end of the first winding connected to the ignition plug;
• and
• reset circuits, the number of which corresponds to the number of the saturable reactors, the reset circuits each applying a reset voltage to the first and second ends of the second winding, the reset voltage being a voltage to switch a magnetization status of the saturable core between a saturated state and an unsaturated state.