Low-loss IGBTs Improve Switching In Sub-2.5 kW Inverter Applications

摘要

Traditionally, IGBTs have addressed applications requiring high-voltage and -current ratings and relatively slow switching frequencies. When the switching frequency is low, the inherently low conduction losses resulting from the device's low V_(CE(on)) (collector-to-emitter saturation voltage), which derive from the IGBT's minority carrier operation, outweigh the poor switching performance, enabling high overall operating efficiency. This article will discuss a new depletion-stop trench IGBT technology that combines low switching losses with the traditional IGBT advantage of low conduction loss for sub-2.5 kW inverter applications.