diode ever operate DCM, No, this converter cannot operate in DCM because the ,synchronous rectifier ,is a ,two- quadrant current-bi-directional switch, , Thus, a change in current direction, positive or negative, will not turn the MOSFET off, DCM occurs when the switches are unipolar BUT V or I is bipolar, This always occurs when the output is unloaded for all converters。
diode ever operate DCM, No, this converter cannot operate in DCM because the ,synchronous rectifier ,is a ,two- quadrant current-bi-directional switch, , Thus, a change in current direction, positive or negative, will not turn the MOSFET off, DCM occurs when the switches are unipolar BUT V or I is bipolar, This always occurs when the output is unloaded for all converters。
穿了 里面穿个秋衣 十来度没问题 但是印花好像没有图片上那么有质感 我是女的 买的S号 袖子长一点 很喜欢。
不错很快,质量也还行,衣服有点酸味,怕印花时间长了容易开裂,还是不错的。