A dV/dt self-adjusting architecture for driving new generations of power transistors is presented. Superjunction technology provided a real opportunity to significantly improve the overall performance/cost ratio of power conversion. However, due to the fast commutation speed capability of Superjunction devices, its switching characteristics are more susceptible to parasitic elements, such as the non-linear gate-drain capacitance. This element affects the slope, dV/dt, which must be a trade-off between switching loss reduction and electromagnetic interference compatibility specifications. A new driving strategy for hard-switching inverters stages is proposed, in order to make the whole system working in the optimum self-adjusting operating point.
Morini, S., Respigo, D., Arosio, M. (2019). Challenges in Driving New Generations of Power Switches for Motor Drive: A dV/dt Self-Adjusting Architecture for Superjunction Power Devices. In Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits (pp. 193-211). Springer [10.1007/978-3-030-25267-0_12].
Challenges in Driving New Generations of Power Switches for Motor Drive: A dV/dt Self-Adjusting Architecture for Superjunction Power Devices
Arosio, Martina
2019
Abstract
A dV/dt self-adjusting architecture for driving new generations of power transistors is presented. Superjunction technology provided a real opportunity to significantly improve the overall performance/cost ratio of power conversion. However, due to the fast commutation speed capability of Superjunction devices, its switching characteristics are more susceptible to parasitic elements, such as the non-linear gate-drain capacitance. This element affects the slope, dV/dt, which must be a trade-off between switching loss reduction and electromagnetic interference compatibility specifications. A new driving strategy for hard-switching inverters stages is proposed, in order to make the whole system working in the optimum self-adjusting operating point.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
