dc-dc变换器的非线性模型及其分析,有平均和离散取样法两种。平均法简单,但不精确,如理论上半周期范围开关频率等的处理,离散法即使在高频领域都是非常精确的,但却极为复杂。改进的模型兼容上述方法并得以发展。这种新的模型容易引入电路并说明变量形式,理论上也是精确的。 The dc-dc converter nonlinear model and its analysis, there are two kinds of average and discrete sampling method. The averaging method is simple but imprecise, as is the case with the theoretical half-cycle switching frequency and so on. Discrete methods are extremely accurate even in the high frequency range, but they are extremely complex. The improved model is compatible with the above method and developed. This new model is easy to introduce into circuits and explains the form of variables, which is theoretically accurate as well.