Ignition apparatus

An ignition apparatus, comprising:

• an ignition plug, which includes a first electrode and a second electrode arranged through intermediation of a gap, and is configured to ignite a combustible gas mixture in a combustion chamber of an internal combustion engine by generating discharge in the gap when a predefined high voltage is applied between the first electrode and the second electrode;
• a plurality of high voltage devices each configured to generate the high voltage and apply the high voltage between the first electrode and the second electrode;
• a leakage current detection device configured to detect a leakage current flowing between the first electrode and the second electrode;
• and
• a control device configured to control respective operations of the plurality of high voltage devices and the leakage current detection device,
• wherein, in response to the control device determining that leakage is present between the first electrode and the second electrode based on the leakage current detected by the leakage current detection device, the control device increases an output current and causes each of the plurality of high voltage devices to initiate activation of the high voltage between the first electrode and the second electrode at the same period.