Electronic system for converting dc voltage into ac voltage

An electronic system, comprising:

• a first switching element, having a control terminal, which is driven by changing a voltage of the control terminal in response to electric charge supplied or released to/from the control terminal;
• an on driving switching element, connected with the control terminal of the first switching element, which is set in an on state to supply electric charge to the control terminal of the first switching element;
• an off driving switching element, connected with the control terminal of the first switching element, which is set in an on state to release the electric charge, supplied by the on driving switching element, from the control terminal of the first switching element;
• and
• a control circuit which controls each of the on driving switching element and the off driving switching element according to a driving signal to set the switching element in the on or off state and to control the voltage of the control terminal of the first switching element and which controls the driving of the first switching element,
• wherein the control circuit controls a controlled element other than the off driving switching element to set the first switching element in an off state when anon-failure occurs in the on driving switching element set in the on state so as to keep the on driving switching element in the on state in spite of the control of the control circuit.