May 14
4:20 PM
Session 2B

HV conversion to SELV – Supply to dynamic, motor driven loads

Presented by Haris Muhedinovic, Automotive Senior Field Applications Engineer, Vicor

Traditional DC-DC converters are limited by switching frequency, which causes power losses, and the heat generated affects reliability. Increased HV bus voltage and limited switching frequency dictate the design of bigger and heavier magnetic components (transformer and inductor) increasing the size and weight of the DC-DC converter. These devices are typically unable to symmetrically handle bidirectional power, so the amount of power regenerated to the HV battery is limited.

A more efficient solution is to use a high-switching frequency converter with soft-switching topology. Vicor can optimize HV to SELV conversion using Sine Amplitude Conversion (SAC™) methodology. Using SAC is more efficient and can reduce package weight and size for the DC-DC converter. The Vicor solution can also provide bidirectional power conversion that is symmetrical, maximizing the power regenerated into the battery in applications like active suspension.

Haris Muhedinovic works with OEMs and TIERs to design and develop highest performance power solutions for most demanding automotive applications. With his interest in power electronics and electronics systems, Haris is aware of new technologies and trends in industry, which allows him to implement power solutions to meet the most demanding specifications. Haris received his MSc from the University of Sarajevo and has 7 years of experience in power electronics in design and application engineering.