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SPEC 中Figure 51. Frequency Response of the Type 2A and Type 2B Frequency Compensation
P1 Z1 Z2 指的是什么?
举例来说
输出电容47UF 电感4.7UH RT 73.2K
P1 = 1/ 2 x pi x R0 x C1 ,我要求C1 , 但裡面有两个数值我不知道分别是P1 , R0
请问我P1跟R0 要带多少呢?
Hi
P1对应补偿fz.
这里的计算非常麻烦,如果你对于环路补偿比较感兴趣的话,建议你找一些《精通开关电源设计》之类的书籍看看。
对于计算,建议借助TI的工具webench。