Results 21 to 30 of about 284 (183)

Enhanced Four-Level Active Nested Neutral Point-Clamped Inverter

Energies
The classical four-level nested neutral point-clamped (4L NNPC) inverter-leg is a hybrid of the flying-capacitor and diode-clamped 4L-inverter-leg configurations.
Charles Ikechukwu Odeh, Arkadiusz Lewicki, Marcin Morawiec, Andrzej Jąderko   +3 more
doaj   +1 more source

Supply System for Three-Level Inverters Using Multi-Pulse Rectifiers with Coupled Reactors

Energies, 2019
The paper presents a proposal of the multi-pulse AC/DC converter for providing supply for multilevel inverters and considerably reducing the line current distortion factor.
Jan Iwaszkiewicz, Piotr Mysiak
doaj   +1 more source

Simulation of single phase photovoltaic system based on fuzzy logic control with multilevel inverter [PDF]

E3S Web of Conferences, 2019
To control the solar power, reliability and stability are two main challenges. In addition, the total harmonic distortion (THD) must be within limits for optimal operation.
Raweh Ezzaldden, Pi Wei, Busati Omar, Rehman Abdul, Mubbarak Saif, Wang Yinshun   +5 more
doaj   +1 more source

Bias‐Field Free Single‐Frequency CW‐ODMR of Nitrogen‐Vacancy Centers in Diamond for the Detection of Transient Electrical Signals

Advanced Materials Interfaces, EarlyView.
Simplified quantum sensing technique for the detection of short electrical signals occurring in neuronal signaling or bioinspired technologies. We demonstrate a single frequency continuous‐wave optically detected magnetic resonance (CW‐ODMR) approach to sense signals that can be as short as 0.2 ms.
João Paulo Silva, Orlando D. Cunha, Pedro Magalhães, Filipe Camarneiro, Jana B. Nieder   +4 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

A Central Somatic Transmission Mediates Proprioceptive Facilitation of Muscle Pain

Advanced Science, EarlyView.
Zhang et al. uncover a novel central mechanism for persistent muscle pain, in which TRPA1 sensitization in MeV proprioceptive neurons enhances somatic secretion. This, in turn, disinhibits descending pain control from neighboring noradrenergic locus coeruleus neurons via local GABAergic circuits, thereby promoting inflammatory muscle pain.
Xiaoyu Zhang, Jiale Yang, Xi Wu, Jie Li, Fujian Lu, Yiman Li, Xingyu Du, Rong Huang, Jamila Asgar, Jing Wang, Ke Ren, Feipeng Zhu, Changhe Wang, Yehua Gan, Feng Wei, Zhuan Zhou   +15 more
wiley   +1 more source

A five‐level nested neutral point‐clamped inverter topology

IET Power Electronics
Classical five‐level nested neutral point‐clamped (5L NNPC) inverter‐leg is a hybrid of the flying‐capacitor and diode‐clamped 5‐L inverter‐leg configurations.
Desmond O. Obe, Chinedu T. Obe, Charles I. Odeh, Emeka S. Obe   +3 more
doaj   +1 more source

Balancing Control of DC-Link Capacitor Voltages for Five-Level Hybrid Diode-Clamped Inverters With Passive Front-Ends

IEEE Access
The paper presents a control strategy for balancing DC-link capacitor voltages in a five-level hybrid diode-clamped (5L-HDC) inverter, consisting of two half-bridges and diode-clamped cells.
Min-Seok Kim, Dinh Du To, Dong-Choon Lee
doaj   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Minimization of Switching Losses for Diode Clamped Multilevel Inverter

International Journal of Computer Applications, 2012
Multilevel inverters are emerging as a most promising alternative for reducing the harmonics and to achieve highvoltage, high-power capability but switching losses are increased because of increased device count. Many modulation techniques like soft switching techniques, space vector-based PWM techniques or sinusoidal PWM-based techniques were employed
Sarat Kumar Sahoo, W. Razia Sultana, R. PonPerumal   +2 more
openaire   +1 more source