Oxide traps existing in 4H-SiC MOS capacitors with fast response times that are active the strong accumulation and depletion regions were characterized by an integrated-charge method. The method is based on measurement of charging discharging voltages across to high-frequency voltage pulses. This can identify order hundreds nanoseconds. results reveal increasing density near-interface energy le...

The chemical structure and electrical properties of anodized titania are investigated for their application as conformal ultra-thin dielectrics on high surface area titanium electrodes. The chemical structure is studied by XPS depth profiling for the first time along with the role of anodization conditions on dielectric thickness, leakage current, and capacitance densities. Different leakage cu...

Electrified vehicles on the market today all use the classical two-level inverter as the propulsion inverter. This thesis analyse the potential of using a cascaded H-bridge multilevel inverter as the propulsion inverter. With a multilevel inverter, the battery is divided into several parts and the inverter can now create voltages in smaller voltage levels than the two-level inverter. This, amon...

This new LCR Meter is especially designed for measurements of low-value components in integrated circuits and thinJilm hybrid circuits, as wellas of discrete components. /t uses a four-pair measurement technique to reduce errors caused by stray capacitance, residual inductance, and mutual inductance of the tesf /eads. T N THE MANUFACTURE of integrated circuits, I good process control is essenti...

We present characterization results of integrated vacuum gaps in semiconductors and report the highest breakdown field dielectric layers ever recorded within microfabricated semiconductor devices. Difficulties associated with presence high electric fields could be overcome by using cylindrical capacitors silicon electrodes that were manufactured standard technology. With this approach, up to 6 ...

This paper proposes a novel three-phase topology with reduced component count for low- and medium-voltage systems. It requires three bidirectional switches twelve unidirectional producing four-level voltages without using flying capacitors or clamping diodes, reducing the size, cost, losses. Removing diodes allows it to simplify control algorithms increase reliability, efficiency, lifetime. A m...

This paper proposes an enhanced Deadbeat Controller (DBC) for a grid-tied Flying Capacitors Inverter (FCI). The proposed DBC guarantees the balancing of capacitors’ voltages while injecting current to grid with lower Total Harmonics Distortion (THD). controller has following advantages: 1) Improved tracking quality even at zero crossing instants by using weighted state-space model, 2) Superior ...

This paper presents a grid-connected system for renewable energy source (RES) applications. The proposed consists of modified switched-capacitor (SC) based multilevel inverter and DC-DC flyback converter. By using the converter voltages DC-link capacitors are adjusted to same values. SC-based has benefits like limited capacitor charging spike, reasonable size, power density, cost per output pow...

• A novel technique to fabricate capacitors with nano-scale layer-by-layer printing Polypropylene gel inks were used successively print layers as thin 200 nm Layer thickness is easily controllable, and the capacitance highly predictable Incorporation of BaTiO 3 nanoparticles was demonstrated in a structured dielectric Presents pathway commercial nanocomposite Nanocomposite dielectrics are an in...

The paper addresses an optimization-based reference calculation method for Modular Multilevel Converters (MMC) operating in normal and constrained situations (when the converter needs to prioritize its quantities as it has reached voltage or current limitations, e.g. during system faults). optimization problem prioritizes satisfy external AC active reactive set-points demanded by grid operator ...