Electromagnetic heating system, IGBT driving control circuit and fault detection method thereof

The invention discloses an electromagnetic heating system, an IGBT driving control circuit and a fault detection method thereof. The driving control circuit comprises a driving module, a synchronous detecting module, a driving voltage regulating module, a resonant voltage detecting module and a control module. When the driving module outputs an amplification region driving voltage, the control module samples a resonant voltage detected by means of the resonant voltage detecting module when the synchronous detecting module detects at least two synchronous detection signals continuously, so as to obtain a first resonant voltage sampled value and the width of a current control pulse. When the driving module outputs a saturation region driving voltage, the control module outputs the control pulse of the current width, and samples the detected resonant voltage to obtain a second resonant voltage sampled value after continuously outputting at least two control pulses, and determines whethera driving voltage regulation branch circuit fails according to the first resonant voltage sampled value and the second resonant voltage sampled value, thereby effectively determining whether the driving voltage is faulty.