21,178 research outputs found
Design of hybrid split-capacitors and split-inductors applied in positive output super-lift luo-converters
No full textThe DC/DC conversion technology has been developed very fast over the decades, and many new types of DC/DC converters are designed. As a very important part of the DC/DC conversion technology, voltage-lift (VL) technology has been widely used in design of DC/DC converters, and the theory is maturely built. While the output voltage of this kind of converters only increases in arithmetic progression when more stages are added. By using super-lift (SL) technique, the output voltage will increase in geometric progression. In this paper, a novel approach is introduced – super-lift Luo-converters armed with split-capacitors and split-inductors. By replacing the original capacitors and inductors with these split elements the output voltage will be lifted to another higher level. This is a very important contribution to the conversion technology by Professor Luo Fang Lin. In this report, formulas and simulation results are presented and analyzed.Bachelor of Engineerin
Song Luo fang bei ri ji
No full text郁永河撰 ; [伍崇曜輯]. 嵩洛訪碑日記 / 黄易撰 ; [伍崇曜輯]Date from preface.框13.1 x 9.1 cm., 9行21字, 黑口, 左右雙邊, 無魚尾, 版心中鐫分冊書名, 下鐫叢書名.Yu Yonghe zhuan ; [Wu Chongyao ji]. Song Luo fang bei ri ji / Huang Yi zhuan ; [Wu Chongyao ji]Kuang 13.1 x 9.1 cm., 9 xing 21 zi, hei kou, zuo you shuang bian, wu yu wei, ban xin zhong juan fen ce shu ming, xia juan cong shu ming
爾雅
No full text羅願著.綫裝.框23.7 x 14.9公分, 9行18字, 白口, 四周雙邊, 單魚尾. 版心中鐫書名及卷次.卷前有李化龍、車養志、方回、洪焱祖等人序.出版年據羅朗重訂洪焱祖跋.鈐有硃印.Juan qian you Li Hualong, Che Yangzhi, Fang Hui, Hong Yanzu deng ren xu.Chu ban nian ju Luo Lang chong ding Hong Yanzu ba.Xian zhuang.Kuang 23.7 x 14.9 gong fen, 9 xing 18 zi, bai kou, si zhou shuang bian, dan yu wei. Ban xin zhong juan shu ming ji juan ci.Qian you zhu yin.Luo Yuan zhu
Wei sheng ji /
No full textEach vol. has seperate colophon: v. 1: Shanghai tan yin lu yong fang Song ju zhen zi zhu ban; v. 2: Shangyu Luo shi zhu ban.Mode of access: Internet
Fig. 1. – Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo. A in Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo (Gesneriaceae), a new species from South China
No full textFig. 1. – Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo. A. Habit; B. Opened corolla with stamens and staminodes; C. One calyx lobe; D. Calyx and pistil. [Fang Wen 100803, IBK] [Drawing: Wen-Hong Lin]Published as part of Wen, Fang & Wei, Yi-Gang, 2014, Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo (Gesneriaceae), a new species from South China, pp. 9-19 in Candollea 69 (1) on page 11, DOI: 10.15553/c2014v691a2, http://zenodo.org/record/576184
Zhongguo jin shi yu di tu shuo. v.1
No full text[羅汝南編纂;方新校繪].Lithography.On double leaves, oriental style, in case.[Luo Runan bian zuan ; Fang Xin jiao hui]
Design of split-inductors applied in positive output super lift luo-converters
No full textAs the demand of the modern electronic devices and appliances are getting higher, the role of the converters with higher output and efficiency become wider for different industries. It has been the role of engineers to explore the converter topology to provide higher output voltage in simple design with less cost. There are quite a number of different ways of lifting output voltage in converter topology.The method that the author will be introducing is called “Split- Inductors Method”, where the
output voltage is totally dependent on the number of inductors used in the converter design. The
report will include a detail discussion about design and results of” split-inductors topology”,
applied to “Positive Output Super Lift Luo Converter” using software simulations and hardware
experiments.Bachelor of Engineerin
Fig. 2. – Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo. A in Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo (Gesneriaceae), a new species from South China
No full textFig. 2. – Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo. A. Natural hillside habitat; B. Natural habitat; C. Plant in natural habitat; D. Plant with cymes and flowers in cultivation; E. Frontal view of cyme and flowers; F. Anatomical dissections of the cyme, showing bracts, pistil and opened corolla; G. Lateral view of flower, calyx and pistil; H. daxial and abaxial views of calyx lobes. [D-H: Fang Wen 100803, IBK] [Photos: A-C: Fang Wen; D-E: Shi-Liang Mo; F-H: Wen-Hong Lin]Published as part of Wen, Fang & Wei, Yi-Gang, 2014, Primulina dongguanica F. Wen, Y. G. Wei & R. Q. Luo (Gesneriaceae), a new species from South China, pp. 9-19 in Candollea 69 (1) on page 12, DOI: 10.15553/c2014v691a2, http://zenodo.org/record/576184
Fang Fang
No full textBiochemistry & Molecular BiologyCell BiologySCI(E)0EDITORIAL MATERIAL12R444-R4462
Investigation of a super-lift luo-converter used in solar panel system
No full textWith the increasing energy shortage and environmental pollution, the studies and applications of solar power have attracted growing interest among researchers in the relevant field. Although solar power has many advantages such as cleanness, renewability and environmental-friendliness, it is still inevitably affected by the changeable sunlight and weather condition. As a result, the output of a solar panel tends to be unstable. Furthermore, if the voltage variation is too large, it will have bad effect on loads or power grid.
Super-Lift Luo-Converter has very high voltage transfer gain as well as many other advantages such as high efficiency, simple structure and low cost. A double closed-loop control has the ability to make the output voltage closely track a reference value. Therefore, in this project, a solar panel power system is designed using the Super-Lift Luo-Converter with a closed-loop control to obtain the desired output voltage. To make sure that the designed system met the design requirements, the open-loop and closed-loop simulations were carried out by using PSIM. The simulation results showed that the final output voltage was stable, which meant the designed solar panel system could effectively increase the stability of the output voltage.
This project not only attempts to reflect the current development trend of the renewable energy but also aims to introduce some innovations such as the use of Super-Lift Luo-Converter and closed-loop control. It is therefore hoped that the solar panel power system herein designed will have good prospects for application.Bachelor of Engineerin
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