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Design of a total-dose radiation hardened monolithic CMOS dc-dc boost converter

Journal of Semiconductors 2011年第7期32卷 97-102页

作者：刘智宁红英于洪波刘佑宝 Xi'an Institute of Microelectronics Technology Xi'an TAIYI Electronic Co. Ltd Xi'an University of Technology

This paper presents the design and implementation of a monolithic CMOS dc-dc boost converter that is hardened for total dose *** order to improve its radiation tolerant abilities,circuit-level and device-level RHBD（radiation-hardening by design） techniques were *** slope compensation was used to improve the inherent *** H-gate MOS transistors,annular gate MOS transistors and guard rings were applied to reduce the impact of total ionizing dose.A boost converter was fabricated by a standard commercial 0.35μm CMOS *** hardened design converter can work properly in a wide range of total dose radiation environments,with increasing total dose *** efficiency is not as strongly affected by the total dose radiation and so does the leakage performance.

关键词： dc-dc power converter boost converter radiation-hardening by design radiation hardened total dose

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Relevance of the P ＆ O MPPT Technique in an Original PV-powered Water Pumping Application

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Journal of Energy and power Engineering 2015年第11期9卷 1008-1018页

作者： Said Aissou Sebastien Jacques Zahra Mokrani Djamila Rekioua Toufik Rekioua Abdeldjalil Ouahabi Electrical Engineering Department University of Bejaia Bejaia 06000 Algeria Electronics and Energy Department Polytech Tours University ofT ours Tours 37200 France Research Group on Materials Microelectronics Acoustics & Nanotechnology University of Tours Tours 37200 France

Many papers exploiting the various MPPT （maximum power point tracking） techniques in PV （photovoltaic） applications, from the simple to the most complicated, can be found in literature. However, these techniques may not always be easy to implement in industrial applications. The main challenge of this paper is to model and implement the P ＆ O （perturb and observe） algorithm in a low-cost PV-powered pumping system. To that end, a comparative investigation of the performance characteristics of the most popular MPPT methods, such as FOCV （fractional open circuit voltage）, FSCC （fractional short circuit current）, FLC （fuzzy logic control）, ANN （artificial neural network） and INC （incremental conductance） is presented. This analysis is helpful to highlight the relevance of the P ＆ O technique taking better account of complexity, difficulty of implementation and cost considerations in water pumping applications. The targeted PV-powered pumping system is based on a single-phase induction motor supplied by a three-phase inverter controlled by the DTC （direct torque control） technique. This stand-alone PV system is dedicated to water pumping, especially in rural areas that have no access to national grids but have sufficient amount of solar radiation. Simulation modeling （Matlab/Simulink） and experimental results are presented to demonstrate the relevance of the system.

关键词： dc-dc power converter MPPT algorithms P & O stand-alone PV-powered water pumping system.

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