Results 151 to 160 of about 66,958 (269)

A novel improved high-gain quadratic DC-DC converter based on two synchronous power switches and a two-winding coupled inductor. [PDF]

Sci Rep
Paşaoğlu A, Nadermohammadi A, Shams H, Sedighnejad H.   +3 more
europepmc   +1 more source

Fully Integrated DC–DC Converter Using Electromagnetically Coupled Class-D LC Oscillators

openIn questa tesi, inizialmente, sono stati analizzati brevemente i principali metodi di energy harvesting ed evidenziati i loro vantaggi e svantaggi; poi, sono state revisionate le topologie base dei convertitori dc-dc integrati e le implementazioni ...
MODENESE, STEFANO
core  

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

Advanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang, Jiwon Ryu, Byungsoo Kang, Injong Oh, Dae‐Hee Cho, YoungHoi Cho, Seung S. Lee, Dong Hoe Kim, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Seungjun Chung, Byoung Koun Min, Phillip Lee   +15 more
wiley   +1 more source

A new soft-switched trans-inverse quasi-Z source DC-DC converter with low switch voltage stress. [PDF]

Sci Rep
Hasanpour S, Nouri T.
europepmc   +1 more source

High‐Performance Transparent, Deformable, and Recoverable Biomimetic Stevia–PVA Hydrogel Triboelectric Nanogenerator with Machine Learning‐Assisted Motion Recognition

Advanced Materials, EarlyView.
A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu, Bui Minh Quang, Toan Minh Pham, Jinsoo Kim, Kyungwho Choi, Dukhyun Choi   +5 more
wiley   +1 more source

A step-up DC-DC converter with high voltage gain and soft switched capability and minimum phase characteristic. [PDF]

Sci Rep
Salehi SM, Varjani AY.
europepmc   +1 more source

Analysis of Buck Mode Realization Possibilities in Quasi-Z-Source DC-DC Converters with Voltage Doubler Rectifier

A series resonant tank in the quasi-Z-source (qZS) DC-DC converter with a voltage doubler rectifier couldsignificantly increase the input voltage regulation range byadding the buck mode realization possibility.
Zaķis, Jānis, Raņķis, Ivars, Chub, Andrii, Liivik, Liisa   +3 more
core  

A SIMPLE MODEL ESTIMATOR FOR MULTIPLE MODEL CONTROL.

, 2008
-- This paper describes a simple model estimator for a new control method based upon algorithms commutation between two linear control laws. The multiple model control (MMC) defined is based upon the fusion of only two traditional IP controllers outputs.
Buck Dc-dc, Converter Application
core  

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

A 0.18-μm BCD Adaptive-On-Time Buck DC-DC Converter with 96.03% Peak Efficiency and 100% Duty Cycle. [PDF]

Micromachines (Basel)
Li T, Qi S, Liu H.
europepmc   +1 more source