Asymmetric halo and extension implantations are examined by simulation for their usability in 45 nm and 32 nm-technology high performance SOI-MOSFETs. Tilted implantations from the source side show higher saturation currents and lower drain overlap capacitances, which improve the intrinsic MOSFET power delay product. Furthermore the asymmetry leads to an inverter chain speed benefit. The strong...

Multilevel inverters (MLI) play an important role in AC applications and are undergoing continuous development topology control. In higher levels inverters, conventional MLIs have high components count which calls for modification of these topologies to obtain the same number with fewer reduce cost size. Balancing capacitors voltages is crucial operation MLI it becomes more challenging levels. ...

A new control structure for sensorless induction machine dedicated to electrical drives using a three-level voltage source inverter VSI-NPC is completely analysed. The amplitude and the rotating velocity of the flux vector could be controlled freely. Both fast torque and optimal switching logic could be achieved; the selection is based on the value of the stator flux and the torque. A novel DTC...

Among multilevel inverter topologies, asymmetric Cascaded H-Bridge (CHB) inverters have higher output-voltage levels than symmetrical ones. However, asymmetric multilevel inverters need pre-stage isolated and floating DC power sources, which make the system complicated and bulky. This paper is focused on solving the problem by using a single-core (magnetically-coupled) multiple-output forward-f...

This paper presents a novel variable-frequency motor drive system for a three-phase induction machine. In this drive system, the machine is excited by unidirectional stator currents shaped and sequenced such that a rotating air-gap flux is induced so that the machine can operate. Due to the unidirectional nature of the currents, an “inverter” that incorporates only three active, insulated-gate-...

A new general cascaded multilevel inverter using developed H-bridges is proposed. The proposed topology requires a lesser number of dc voltage sources and power switches and consists of lower blocking voltage on switches, which results in decreased complexity and total cost of the inverter. These abilities obtained within comparing the proposed topology with the conventional topologies from afo...

Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power mediumvoltage energy control. This paper presents the most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-clamped (flying capacitor), and cascaded multicell with separate dc sources. Emerging topologies like asymmetric hybrid cells and soft-switched ...