亚洲国产成人无码专区-亚洲丁香一区-国产伦a视频-久久精品国产99日本精品免-午夜性做爰免费看-日韩欧美高清在线视频-芒果视频在线观看免费-特黄毛片在线观看-免费一级淫片a人观看69-日韩久久av-91精品91久久久中77777老牛

One of the parameters of an isolated DC-DC converter is the range of the input voltage over which the converter can operate. For the industry-standard “bricks” available for the nominal 48V input telecom marketplace, this range is usually 36V to 75V, or a ratio of about 2:1 from the highest to the lowest value. But there are many applications where a converter that can handle a much wider range of input voltage variation is desirable. For instance, in some systems the distributed input voltage has significant transients and surges that last too long to be removed by a filter.