简介:随着全球能源危机和环境问题的日益严重,戴姆勒与比亚迪强强联手以全新的品牌作为第一批'吃蟹者'杀入国内的电动车领域,然而当时高昂的价格限制了它的销量。而今,这个品牌又携腾势400到来,更长的续航里程是否能为它扳回一城呢?
简介:Photoconductivesemiconductorswitches(PCSSs)arewidelyusedinhighpowerultra-widebandsourceapplicationsandprecisesynchronizationcontrolduetotheirhighpowerlow-jitterhigh-repetition-frequency.Inthisletter,a14-mmgapsemi-insulatingGaAsPCSSbiasedunder20kVistriggeredbya1064-nmlaserwitharepetitionfrequencyof30Hz.Althoughthetriggerconditionisgreaterthanthethresholdofthelock-oneffect,thehighgainmodeisnotobserved.TheresultsindicatethatthehighgainmodeofthePCSSisquenchedbydecreasingtheremnantvoltageofpulsedenergystoragecapacitor.