igbt can change the power amplifier tube, igbt after the direct voltage drop like a diode 0.4 ~ 0.6v, power consumption is fixed, because the power consumption is fixed in the high current and high voltage igbt heating is much smaller than the field effect tube, in addition to the driving voltage of about 12v or about 18v, generally can be replaced.
able
It is a complex of MOSFETs and bipolar power transistors, and the output impedance of the two is different. On the other hand, it seems that IGBTs require negative voltage to be reliably turned off, so a simple substitution is not desirable.