久久亚洲日韩精品一区二区三区-日本免费一区二区三区最新-成人片黄网站色大片免费观看cn-少妇人妻偷人精品无码视频-欧美三级中文字幕在线观看

This Design Note describes an up to 10 watt, off-line universal input, LED string driver with power factor correction (PFC). It incorporates a revised version of the NCP1014 “mini” boost power factor corrector circuit described in ON Semiconductor Design Note DN06064 in conjunction with ON Semiconductor’s new NSI45025 series constant current regulator.This latter device is a 2-pin part which can be inserted in series with a string of LEDs and provide a highly stable constant current and withstand a compliance voltage from 2 to 45 volts.