Sökning: "ZCS"

Hittade 2 avhandlingar innehållade ordet ZCS.

1. 1. Cost-effective Cells for High-power Modular Multilevel Converters

   Författare :Matthijs Heuvelmans; Staffan Norrga; Hans-Peter Nee; Rik De Doncker; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MMC; modular multilevel converter; ARCP; IGCT; soft-switching; ZVS; ZCS; snubber; thyristor; SCR; silicon controlled rectifier; HVDC; STATCOM; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The modular multilevel converter (MMC) topology was introduced in 2003and has since been receiving considerable attention from industry and academia.Notable benefits compared to two- or three-level voltage source convertersare its scalability, low switching losses, low output filter requirementsand ease of adding redundancy combined with fail-safe operation. LÄS MER

3. 2. Efficient Energy Harvesting Interface for Implantable Biosensors

   Författare :Janko Katic; Ana Rusu; Saul Rodriguez; Jonny Johansson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Implantable biosensors; thermoelectric energy harvesting; energy harvesting interface; power management; DC-DC converters; dead time losses; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Energy harvesting is identified as a promising alternative solution for powering implantable biosensors. It can completely replace the batteries, which are introducing many limitations, and it enables the development of self-powered implantable biosensors. LÄS MER