In principle, CONCEPT drivers with multilevel capability (see also FAQ on this topic) can be used for series circuits.

However, the following points should be noted: even with synchronous driving of series-connected IGBTs, due to parameter fluctuations of the IGBTs, symmetrical voltage division and voltage limitation can only be achieved by additional measures, such as dv/dt limiting, active clamping or snubbers. Another problem is the necessary high insulating strength of the driver’s power supply.

For larger volumes, CONCEPT also develops customer-specific drivers.

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