Dy 3+ ‐doped Y 3 Al 5 O 12 transparent ceramic for high efficiency ultraviolet excited single‐phase white‐emitting phosphor

2018 ◽  
Vol 102 (6) ◽  
pp. 3510-3516 ◽  
Author(s):  
Ruilin Zheng ◽  
Jianyong Ding ◽  
Qi Zhang ◽  
Binbin Li ◽  
Zhongyue Wang ◽  
...  
Keyword(s):  
Single Phase ◽  
High Efficiency ◽  
Transparent Ceramic

scholarly journals Investigation on the La Replacement and Little Additive Modification of High-Performance Permanent Magnetic Strontium-Ferrite

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1034
Author(s):  
Ching-Chien Huang ◽  
Chin-Chieh Mo ◽  
Guan-Ming Chen ◽  
Hsiao-Hsuan Hsu ◽  
Guo-Jiun Shu
Keyword(s):  
High Performance ◽  
Single Phase ◽  
Permanent Magnets ◽  
High Efficiency ◽  
Cobalt Content ◽  
Preparation Condition ◽  
Milling Process ◽  
Experimental Parameters ◽  
La Substitution ◽  
Hard Magnets

In this work, an experiment was carried out to investigate the preparation condition of anisotropic, Fe-deficient, M-type Sr ferrite with optimum magnetic and physical properties by changing experimental parameters, such as the La substitution amount and little additive modification during fine milling process. The compositions of the calcined ferrites were chosen according to the stoichiometry LaxSr1-xFe12-2xO19, where M-type single-phase calcined powder was synthesized with a composition of x = 0.30. The effect of CaCO3, SiO2, and Co3O4 inter-additives on the Sr ferrite was also discussed in order to obtain low-temperature sintered magnets. The magnetic properties of Br = 4608 Gauss, bHc = 3650 Oe, iHc = 3765 Oe, and (BH)max = 5.23 MGOe were obtained for Sr ferrite hard magnets with low cobalt content at 1.7 wt%, which will eventually be used as high-end permanent magnets for the high-efficiency motor application in automobiles with Br > 4600 ± 50 G and iHc > 3600 ± 50 Oe.

scholarly journals Advanced partial nucleation for single-phase FA0.92MA0.08PbI3-based high-efficiency perovskite solar cells

2019 ◽  
Vol 62 (12) ◽  
pp. 1846-1856 ◽  
Author(s):  
Pengju Shi ◽  
Yong Ding ◽  
Cheng Liu ◽  
Yi Yang ◽  
Zulqarnain Arain ◽  
...  
Keyword(s):  
Solar Cells ◽  
Single Phase ◽  
High Efficiency ◽  
Perovskite Solar Cells

scholarly journals High-Efficiency Bi-Directional Single-Phase AC/DC Converter Design and Field Application for LVDC Distribution

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2191 ◽  
Author(s):  
Juyong Kim ◽  
Hongjoo Kim ◽  
Jintae Cho ◽  
Youngpyo Cho
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
High Efficiency ◽  
Low Voltage ◽  
Control Function ◽  
High Reliability ◽  
Power Converter ◽  
Field Application ◽  
Distribution Grid ◽  
Demonstration Site

This paper describes the design and field application of a high-efficiency single-phase AC/DC converter that is suitable for distribution lines. First, an appropriate AC/DC converter was designed in consideration of the environment of the application system. In order to ensure high efficiency and high reliability, we designed an optimum switching element and capacitor suitable for the converter, and the protection element of the AC/DC converter was designed based on these elements. The control function for the power converter suitable for an LVDC distribution system is proposed for highly reliable operation. The AC/DC converter was manufactured based on the design and its performance was verified during application in an actual low-voltage DC (LVDC) distribution grid through tests at the demonstration site. The application to a DC distribution system in an actual grid is very rare and it is expected that it will contribute to the expansion of LVDC distribution.

scholarly journals Design of High Efficiency Single-Phase Bridge Passive Inverter Based on SG3525

2019 ◽  
Vol 688 ◽  
pp. 033023
Author(s):  
Zhen Zhu ◽  
Renda Wang ◽  
Yong Yin ◽  
Shengwei Xing
Keyword(s):  
Single Phase ◽  
High Efficiency

scholarly journals A New High-Efficiency Single-Phase Transformerless PV Inverter Topology

2011 ◽  
Vol 58 (1) ◽  
pp. 184-191 ◽  
Author(s):  
Tamás Kerekes ◽  
Remus Teodorescu ◽  
Pedro Rodriguez ◽  
Gerardo Vazquez ◽  
Emiliano Aldabas
Keyword(s):  
Single Phase ◽  
High Efficiency ◽  
Pv Inverter ◽  
Inverter Topology

The Output Researching of a Cascaded Multilevel Class-D Power Amplifier

2012 ◽  
Vol 482-484 ◽  
pp. 3-10
Author(s):  
Guo Hua Xu ◽  
Ying Zhang ◽  
Ming Dong ◽  
Qing De Meng
Keyword(s):  
Power Amplifier ◽  
Single Phase ◽  
High Efficiency ◽  
Pwm Control ◽  
Circuit Topology ◽  
Class D ◽  
Switch Mode

A high efficiency switch-mode power amplifier based on a cascaded multicell multilevel circuit topology is introduced in the paper. A multicell topology being operated in a unipolar phase-shifted PWM control to switch-mode amplifier system is introduced. After analysising a single-phase H-bridge unipolar PWM inverter’s output, the paper emphasis on the researching of the output of a Cascaded Multilevel Class-D Power Amplifier. The paper analyzes the advanced characteristic of the cascaded multilevel technique. Then a cascaded multilevel class-D power amplifier is built in the laboratory. The result of measurement shows a good following performance and stability.

scholarly journals DC-DC boost-flyback converter functioning as input stage for one phase low power grid-connected inverter

2014 ◽  
Vol 63 (3) ◽  
pp. 393-407 ◽  
Author(s):  
Adam Kawa ◽  
Adam Penczek ◽  
Stanisław Piróg
Keyword(s):  
Solar Cell ◽  
High Voltage ◽  
Single Phase ◽  
High Efficiency ◽  
Practical Implementation ◽  
Voltage Gain ◽  
Flyback Converter ◽  
High Voltage Gain ◽  
Grid Connected Inverter ◽  
Proper Operation

Abstract The paper treats about main problems of one phase DC-AC microinverters that allow single solar cell to be joined with the grid. One of the issues is to achieve high voltage gain with high efficiency in DC circuit, which is necessary for proper operation of inverter. The operating principles, results of practical implementation and investigations on boost-flyback converter, which meets mentioned demands, are presented. (high step-up DC-DC boost-flyback converter for single phase grid microinverter)

Sign in / Sign up

Export Citation Format

Share Document