Optocouplers Support High- Power, High-Speed Inverters

摘要

Gates of insulated gate bipolar transistors (IGBTs) must be driven with stable on and off drive voltages and with relatively high current levels to allow rapid switching between their on and off condition. In addition to allowing rapid switching, high drive current also is a requirement to switch larger power ratings of IGBTs.rnTo realize the importance of high-current gate driver circuit design to inverter application, we look to the end equipment design specification, IGBT gate charge, gate capacitance, gate voltage and switching frequency.