UAPFs topologies with UPS features for low and medium voltage applications

Cross Connected Multilevel Voltage Source Inverter Topologies for Medium Voltage Applications

Preface Looking back at the past 3 years of my professional life, I feel really privileged. After my studies at the Swiss Federal Institute of Technology in Lausanne (EPFL) in 2004, where I specialized in power electronics in the last years, I was given the chance to start a PhD work at the ABB Corporate Research Center in Baden-Dättwil, in collaboration with EPFL. Surrounded by skilled colleag...

Planning of Distribution Networks for Medium Voltage and Low Voltage

Hybrid Voltage Regulator for Low Voltage Applications

of the Thesis Fully Integrated Hybrid Voltage Regulator for Low Voltage Applications by Yongwan Park Master of Science in Electrical Engineering Stony Brook University 2016 A novel hybrid regulator topology is proposed to alleviate the weaknesses of existing hybrid topologies. Contrary to the dominant existing practice, a switchedcapacitor converter and a resistorless LDO operate in a parallel ...

new cnfet- based full adder cells for low- power and low- voltage applications

scaling challenges and limitations of conventional silicon transistors have led the designers to apply novel nano-technologies. one of the most promising and possible nano-technologies is cnt (carbon nanotube) based transistors. cnfet have emerged as the more practicable and promising alternative device compared to the other nanotechnologies.  this technology has higher efficiency compared to t...

A High Efficiency Low-Voltage Soft Switching DC–DC Converter for Portable Applications

This paper presents a novel control method to improve the efficiency of low-voltage DC-DC converters at light loads. Pulse Width Modulation (PWM) converters have poor efficiencies at light loads, while pulse frequency modulation (PFM) control is more efficient for the same cases. Switching losses constitute a major portion of the total power loss at light loads. To decrease the switching losses...