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1200V CoolSiC™ Schottky Diode

The implementation of highly efficient, compact and simple 3-phase inverter systems are currently limited by silicon devices' high dynamic losses operating at 1200V voltages. Alternative designs using 600V/650V devices can partially improve efficiency. However, they come at the expense of more complicated (3-level) topologies with complex control schemes and more power components.

Infineon’s 1200V SiC diode combined with a Si HighSpeed 3 IGBT enables simpler 2-level topologies due to its zero reverse recovery losses. It also delivers 40% lower Si IGBT turn-on losses and reduced EMI. Moreover, an improved thermal performance reduces now the junction temperature by 15% compared to a silicon based solution - increasing system reliability as well the possibility to increase output power in a given form factor.

The static losses of the SiC diode often limit the optimization potential of Si IGBT/SiC diode solutions. To fix this, the generation 5 diode comes with a reduction of forward voltage and its temperature dependency to reduce static losses and thereby the price to performance. The new generation 5 is targeted for use in Solar Inverters, UPS systems, Motor Drives and 3-phase SMPS.

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