Search for dissertations about: "proximity losses"
Showing result 1 - 5 of 12 swedish dissertations containing the words proximity losses.
-
1. Modelling of Terahertz Planar Schottky Diodes
Abstract : This thesis deals with the modelling of THz planar Schottky diodes, focusing on analyses of the geometry- dependent parasitics and the diode chip thermal management. Moving towards higher operating frequencies, the electromagnetic couplings pose significant limitations on the diode performance. READ MORE
-
2. Multilayered Coreless Printed Circuit Board (PCB) Step-down Transformers for High Frequency Switch Mode Power Supplies (SMPS)
Abstract : The Power Supply Unit (PSU) plays a vital role in almost all electronic equipment. The continuous efforts applied to the improvement of semiconductor devices such as MOSFETS, diodes, controllers and MOSFET drivers have led to the increased switching speeds of power supplies. READ MORE
-
3. Modelling and Characterisation of Terahertz Planar Schottky Diodes
Abstract : This thesis deals with the modelling and characterisation of THz planar Schottky diodes, focusing on analyses of geometry-dependent electrical parasitics and the thermal management of the diode chip. Moving towards higher operating frequencies, the diode performance degrades due to high frequency losses, parasitic couplings and self-heating effects. READ MORE
-
4. Identification of molecular markers associated with fungal resistance in Norway spruce and common ash
Abstract : Trees are giants of the forests, possessing nutrient-rich tissues that make them natural targets for pathogens. In Europe, the fungal pathogens Heterobasidion annosum s.l. and Hymenoscyphus fraxineus are associated with Norway spruce and common ash, respectively. READ MORE
-
5. EMC Aspects of PMW Controlled Loads in Vehicles
Abstract : The number of electrically driven loads in a modern vehicle is constantly increasing. Many loads that former were mechanically driven will in the future be driven by electricity. This implies that a number of electronic systems have to be packed together in the limited space in a vehicle. READ MORE