Results 21 to 30 of about 5,546 (208)
A Soft-Switching Control for Cascaded Buck-Boost Converters Without Zero-Crossing Detection
IEEE Access, 2019 This paper proposes a novel soft-switching control without zero-crossing detection for the cascaded buck-boost converters (CBBCs). The proposed soft-switching control consists of two parts: soft-switching modulation and closed-loop control.
Jingrong Yu +4 more
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CONTROL TECHNIQUES FOR VARIOUS BIPOLAR PWM STRATEGIES OF THREE PHASE FIVE LEVEL CASCADED INVERTER [PDF]
Journal of Engineering Science and Technology, 2015 This paper presents different types of bipolar Pulse Width Modulation (PWM) strategies for the chosen Cascaded MultiLevel Inverter (CMLI). The main purpose of MLI is to use power semiconductor devices of lower voltage ratings to realize high voltage ...
C. R. BALAMURUGAN +2 more
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Energies, 2017 : Multilevel modulation strategy is an important factor affecting the output performance of multilevel converters. In this paper, the relationship between phase-shifted pulse width modulation (PWM) and phase disposition PWM is analyzed, and then an ...
Muxuan Xiao, Qianming Xu, Honglin Ouyang
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IEEE AccessThis study investigates the performance of a single-phase 5-level H-Bridge Neutral Point Clamped (HBNPC) inverter across various operating conditions.
Nazlican Cavli, Emre Ozkop
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IEEE Access, 2021 Compared with the traditional dual active bridge (DAB) converter, the push-pull DAB converter can reduce the number of switching devices and is suited for low voltage applications.
Asad Ali, Yuefeng Liao
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Advanced Functional Materials, EarlyView.We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim +7 more
wiley +1 more source
Optimal Hybrid Pulse Width Modulation for Three-Phase Inverters in Electric Propulsion Ships
MachinesGlobal interest in environmentally friendly ships has surged as a result of greenhouse gas reduction policies and the demand for carbon neutrality. Despite growing demand for electric propulsion systems, there is a lack of research and development on ...
Chan Roh +5 more
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Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors
Advanced Materials, EarlyView.A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi +11 more
wiley +1 more source
Optimization strategy of switching modulation of mine—used high—voltage frequency converter
Gong-kuang zidonghua, 2018 For problems of high switching loss and power quality distortion when carrier modulation PWM control method were used in mine—used high—voltage frequency converter.
LI Zhaoping +5 more
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Advanced Materials, EarlyView.A thermally adaptive plasmonic metasurface, functionalized with poly(N‐isopropylacrylamide) (PNIPAM) and anti‐CD63 antibodies, enables precise, on‐demand capture and release of extracellular vesicles (EVs). Delivering high recovery, improved purity, and intact vesicle structure, the platform offers a versatile, label‐free solution for real‐time EV ...
Beyza Nur Kucuk +7 more
wiley +1 more source