Sökning: "Olof Tornblad"

Hittade 2 avhandlingar innehållade orden Olof Tornblad.

1. 1. Design and Characterization of RF-Power LDMOS Transistors

   Författare :Olof Bengtsson; Jörgen Olsson; Lars Vestling; Claes Beckman; Olof Tornblad; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power Amplifiers; LDMOS transistors; RF-power; IMD; Technology CAD; Load-Pull; Electronics; Elektronik;

   Sammanfattning : In mobile communication new applications like wireless internet and mobile video have increased the demand of data-rates. Therefore, new more wideband systems are being implemented. LÄS MER

3. 2. Physical modeling of on-state losses in bipolar Si and SiC power devices

   Författare :Olof Tornblad; KTH; []
   Nyckelord :;

   Sammanfattning : Power losses affect both the installation- and long-term cost of power electronic systems. The installation cost is related to the fatt that power losses in silicon power devices generate heat and make installation of heat sinks and water cooling necessary. If self-heating effects are strong, lotal overheating can eventually lead to device failure. LÄS MER