Results 81 to 90 of about 14,860 (299)

Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress

IET Power Electronics
In magnetically coupled impedance source (MCIS) inverters, the turn ratio of the coupled inductor offers design flexibility. The leakage inductance, however, poses additional challenges, mainly voltage spikes.
Ahmad Mahdave, Mohammad Monfared, Ali Nikbahar, Wahid Eskandary   +3 more
doaj   +1 more source

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

Advanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani, Justin Neu, Sung‐Joo Kwon, Runqio Song, Zixuan Chen, Tajah Trapier, Paschalis Gkoupidenis, David Ginger, Wei You, Jasper J. Michels, Harald Ade   +10 more
wiley   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Quasi-Z-source Inverter with Coupled Inductor [PDF]

A novel quasi-Z-source inverter with Coupled Inductor technique is proposed in this paper. The boost ability of the proposed topology is enhanced compared to classic Zsource/quasi-Z-source topologies.
Elgendy MA, Muhammad M, Armstrong M, Zhao Z   +3 more
core  

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

Advanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang, Li Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +5 more
wiley   +1 more source

Quasi-Z-Source Three-Phase Voltage Source Inverter with Virtual Space Vector Modulation to Increase the Voltage Gain and for the Reduction of Common Mode Voltage

Power Electronics and Drives
A quasi-Z-source network is used to boost the DC bus voltage of a voltage source two-level H-bridge inverter to increase the voltage gain. With the increase in the DC bus voltage, the common mode voltage (CMV) also increases.
Nanda Debalina, Syam Prasid, Mukherjee Kaushik   +2 more
doaj   +1 more source

Three Phase Trans-Quasi-Z-Source Inverter

CPSS Transactions on Power Electronics and Applications, 2018
In this paper, a new type of single-stage boost Transquasi- Z-source inverter topology is presented. The basic structure and working principle of the inverter are analyzed and its voltage gain is deduced. The model of the Trans-quasi-Z-source network is established by using Laplace transform.
Xupeng Fang, Bolong Ma, Guanzhong Gao, Lixin Gao   +3 more
openaire   +1 more source

Linker‐Engineered Dimeric Acceptors Afford Efficient Organic Photocatalytic Hydrogen Evolution via Tailored Nanomorphology for Long‐Lived Charge Accumulation

Advanced Materials, EarlyView.
We developed a new series of monomeric (MY) and dimeric acceptors incorporating unfused (DY1) and fused (DY2) linkers, which establish a controlled self‐aggregation trend of MY > DY2 > DY1. The DY2‐based system yields a bulk‐heterojunction nanoparticle morphology that appears to balance phase separation and interfacial accessibility, consistent with ...
Jin‐Woo Lee, Cheng Sun, Yang Song, Guanru Dong, Keren Ai, Stanley Alfred Cazaly, Flurin Eisner, Bumjoon J. Kim, Zeinab Hamid, Iain McCulloch, Yun‐Hi Kim, James R. Durrant   +11 more
wiley   +1 more source

DC-Link Quasi-Switched Boost Inverter With Improved PWM Strategy and its Comparative Evaluation

IEEE Access, 2020
Low voltage stress on the impedance source network devices is the main reason for the advent of DC-linked type quasi-switched boost inverters (DqSBIs). However, the DqSBI has become less attractive due to its low voltage gain. This paper presents a novel
Minh-Khai Nguyen, Truong-Duy Duong, Young-Cheol Lim, Joon-Ho Choi, D. Mahinda Vilathgamuwa, Geoffrey R. Walker   +5 more
doaj   +1 more source

An Extended Switched-inductor Quasi-Z-source Inverter

Journal of Electrical Engineering and Technology, 2014
In this paper, an extended switched-inductor quasi-Z-source inverter (ESL-qZSI) with high boost voltage inversion ability is presented, which combines the SL-qZSI with the traditional boost converter, as well as improves the switched-inductor cell.
Kai Deng, Fei Mei, Jun Mei, Jianyong Zheng, Guangxu Fu   +4 more
openaire   +2 more sources