The volt ampere characteristics of electrolytic oxidation of Datong Jinhuagong coal was studied and the most suitable electrolysis system was determined The results show that H 2SO 4 H 2O system is the ideal electroly...The volt ampere characteristics of electrolytic oxidation of Datong Jinhuagong coal was studied and the most suitable electrolysis system was determined The results show that H 2SO 4 H 2O system is the ideal electrolysis system for the coal oxidation The test oxidation conditions in the present study is that the concentration of coal slurry is 20?g/L, the concentration of H 2SO 4 is 1?mol/L, the catalyst is FeSO 4 and the oxidation temperature is 60?展开更多
近年来随着氮化镓器件制造工艺的迅速发展,氮化镓高电子迁移率晶体管(Ga N HEMT)已经开始应用在电力电子领域。高压共源共栅(Cascode)Ga N HEMT的出现使得Ga N器件可以在高压场合进行应用。本文首先研究了耗尽型Ga N HEMT及Cascode Ga N...近年来随着氮化镓器件制造工艺的迅速发展,氮化镓高电子迁移率晶体管(Ga N HEMT)已经开始应用在电力电子领域。高压共源共栅(Cascode)Ga N HEMT的出现使得Ga N器件可以在高压场合进行应用。本文首先研究了耗尽型Ga N HEMT及Cascode Ga N HEMT全范围输出伏安特性及其特点。结合Si MOSFET和耗尽型Ga N HEMT的特性,本文重点研究了Cascode Ga N HEMT的工作模态及其条件。最后,给出了500W基于600V Cascode Ga N HEMT单相全桥逆变器的实验验证。实验结果和仿真验证证明了理论分析的正确性。展开更多
文摘The volt ampere characteristics of electrolytic oxidation of Datong Jinhuagong coal was studied and the most suitable electrolysis system was determined The results show that H 2SO 4 H 2O system is the ideal electrolysis system for the coal oxidation The test oxidation conditions in the present study is that the concentration of coal slurry is 20?g/L, the concentration of H 2SO 4 is 1?mol/L, the catalyst is FeSO 4 and the oxidation temperature is 60?
文摘近年来随着氮化镓器件制造工艺的迅速发展,氮化镓高电子迁移率晶体管(Ga N HEMT)已经开始应用在电力电子领域。高压共源共栅(Cascode)Ga N HEMT的出现使得Ga N器件可以在高压场合进行应用。本文首先研究了耗尽型Ga N HEMT及Cascode Ga N HEMT全范围输出伏安特性及其特点。结合Si MOSFET和耗尽型Ga N HEMT的特性,本文重点研究了Cascode Ga N HEMT的工作模态及其条件。最后,给出了500W基于600V Cascode Ga N HEMT单相全桥逆变器的实验验证。实验结果和仿真验证证明了理论分析的正确性。
