Model behaviour

Researchers in the EU funded Robuspic project claim new models of how two types of power transistors perform will bring more efficient circuits, making such technologies as cars and home appliances more reliable and environmentally friendly.

The two power transistor technologies are dmos, double diffused metal oxide semiconductor, and ligbt, lateral insulated gate bipolar transistor. Lack of accurate models of how dmos and ligbt behave under different conditions means semiconductor manufacturers have over compensated in their designs. This has resulted in a waste of materials and energy. Robuspic researchers say they have developed the necessary models for dmos and ligbt. Edgard Laes, Robuspic project coordinator, said: “Design and fabrication of highly reliable and efficient smart power circuits is one of the most important strategic ways to reduce energy losses in power systems by ensuring optimal energy conversion at all times.”