Results 41 to 50 of about 6,749 (308)

Verification of Operation Modes of Designed LLC Resonant Converter

, 2011
This paper describes the design of the LLC resonant converter, which is done by means of fundamental harmonic approximation (FHA). Output power of proposed converter is 1kW with output voltage 48 V at switching frequency of 500 kHz.
Jozef Kandrac, Pavol Spanik, Michal Frivaldsky, Peter Drgona   +3 more
core   +1 more source

DC Converter with Wide Soft Switching Operation, Wide Input Voltage and Low Current Ripple

Applied Sciences, 2020
A soft switching current-source resonant converter is presented and implemented for wide voltage applications such as fuel cells and solar power. An LLC (inductor–inductor–capacitor) converter is adopted to accomplish zero voltage (current) operation on ...
Bor-Ren Lin, Guan-Hong Lin
doaj   +1 more source

Novel Offline Switched Mode Power Supplies for Solid State Lighting Applications [PDF]

, 2013
In recent years, high brightness light emitting diodes (HBLEDs) have increasingly attracted the interest of both industrial manufacturers and academic research community.
Sichirollo, Francesco
core  

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Research on LLC Resonant Converter Control Strategy Based on Sliding Mode Active Disturbance Rejection Control

IEEE Access
Aiming at the problems of excessive fluctuation and long adjustment time when LLC resonant converter encounters load mutation in traditional control strategy, which seriously affects the normal use, an improved self-disturbance control strategy based on ...
Liwen Ji, Xin Li, Lei Han, Zhen Yang, Caochao Zhang, Yan Li   +5 more
doaj   +1 more source

MATLAB GUI Based Steady State Open-Loop and Closed-Loop Simulation Tools for Different LLC Converters With all Operation Modes

IEEE Open Journal of Industry Applications, 2021
LLC resonant converters have been widely adopted in many different industrial applications due to their characteristics of high efficiency and high power density.
Yuqi Wei, Zhiqing Wang, Quanming Luo, H. Alan Mantooth   +3 more
doaj   +1 more source

Choosing Modulation Strategies for 2-Stage Combine LLC- and Direct Converter-Modelling, Simulation, Application

, 2011
The paper deals with design of switching and control strategy of 2-stage combine LLC- and matrix converter, supplied from DC voltage source. It also deals with comparison of the four different switching control modes: phase-mode control, sinusoidal PWM ...
Michal Prazenica, Branislav Dobrucky, Michal Frivaldsky, Mariana Benova   +3 more
core   +1 more source

Research on Output Voltage Stabilization of LLC Resonant Converter Based on LADRC with Simplified Linear Model

, 2021
LLC resonant converter has gained popularity in a wide number of industrial applications due to its high efficiency and power density. However, disturbances such as input voltage fluctuations and parameter perturbations make the control of output voltage
Wang, Z, Jiayu Shi, Li, H, Zhixin Wang, Hui Li, Shi, J   +5 more
core   +1 more source

Erythropoietin modulates hepatic inflammation, glucose homeostasis, and soluble epoxide hydrolase and epoxides in high‐fat diet‐induced obese mice

FEBS Open Bio, EarlyView.
Erythropoietin administration suppresses hepatic soluble epoxide hydrolase (sEH) expression, leading to increased CYP‐derived epoxides. This is associated with a shift in hepatic macrophage polarization characterized by reduced M1 markers and increased M2 markers, along with reduced hepatic inflammation, suppressed hepatic lipogenesis, and attenuated ...
Takeshi Goda, Satoru Sugimoto, Chiharu Cho, Madoka Konishi, Nozomi Inoue, Satoshi Miyagaki, Yasuhiro Kawabe, Takuro Okamura, Masahide Hamaguchi, Hisakazu Nakajima, Michiaki Fukui, Masakazu Shinohara, Tomoko Iehara   +12 more
wiley   +1 more source

Parameters Optimization of an Intermediate Frequency Isolated SiC Power DC-DC Converter

IEEE Access, 2022
To improve the lightweight level of auxiliary converters for urban rail vehicles, full SiC intermediate frequency auxiliary converters have become a trend.
Chengwei Kang, Hongliang Pan, Shuiyuan He, Jiahui Ren, Peicheng Cong, Dazhi Hou, Jingyan Zhang, Lijun Diao   +7 more
doaj   +1 more source