Does CONCEPT offer digital IGBT drivers?
CONCEPT IGBT drivers combine both digital and analog approaches. The highly integrated SCALE and SCALE-2 chipsets in every CONCEPT driver rely on a mixed-signal architecture. The individual strengths of digital building blocks and analog cells are strategically exploited to generate maximum performance. As an example, digital startup control can be much more precise than its analog counterpart when all operating conditions, voltage variations and device aging are considered. Also, considerable chip area, and thus costs, can be saved by implementing digital filters and digital timing management. The situation is very different if we look at IGBT short-circuit protection. Here, the inherent speed of analog signal processing is far superior to any affordable digital emulation where it would be necessary to wait for the next few clock cycles to accommodate the request. Another example strongly in favor of analog circuitry is management of the IGBTs switching characteristics by means of act
