What are the differences between IGBT and MOSFET?

MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are voltage-controlled, switch fast with low gate drive energy, and have low on-resistance at low voltages. IGBTs (Insulated Gate Bipolar Transistors) combine MOSFET gate with bipolar output, handling higher voltages and currents with lower conduction losses but slower switching. MOSFETs suit low-voltage, high-frequency applications (DC-DC converters). IGBTs dominate medium to high power applications (motor drives, UPS). Above 500V and several kW, IGBTs typically win.