专利名称：METHOD FOR PROVIDING LOW VOLTAGE
DC POWER FROM AC MAINS POWER
发明人：PAIK, NAMWOOK申请号：EP12870156申请日：20120302公开号：EP2820753A4公开日：20151111
摘要：According to one aspect, embodiments of the invention provide a power supplysystem comprising an input line configured to receive input AC power, a first capacitorcoupled to the input line, a second capacitor, a controller, a rectifier having an inputcoupled to the first capacitor and an output coupled to the second capacitor, the secondcapacitor further coupled to the controller, and a switch selectively coupled across thefirst capacitor, and configured to selectively bypass the first capacitor, wherein thecontroller is configured to detect a voltage across the second capacitor, operate theswitch to charge the second capacitor at a first rate if the voltage is above a
predetermined threshold, and operate the switch to charge the second capacitor at asecond rate if the voltage is below a predetermined threshold.
申请人：SCHNEIDER ELECTRIC IT CORPORATION
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容