張zhang弛chi振zhen蕩dang器qi是shi一yi個ge重zhong複fu電dian路lu，它ta實shi現xian從cong電dian容rong器qi充chong電dian到dao閾yu值zhi事shi件jian的de重zhong複fu行xing為wei。該gai事shi件jian使shi電dian容rong器qi放fang電dian，其qi再zai充chong電dian時shi間jian驗yan證zheng了le事shi件jian的de重zhong複fu時shi間jian。在zai簡jian單dan的de閃shan光guang器qi電dian路lu中zhong，電dian池chi通tong過guo電dian阻zu器qi給gei電dian容rong器qi充chong電dian
，電dian阻zu器qi和he電dian容rong器qi在zai恒heng定ding時shi間jian的de值zhi決jue定ding了le閃shan光guang率lv。可ke以yi通tong過guo降jiang低di電dian阻zu值zhi來lai最zui大da化hua閃shan爍shuo率lv。