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(续上期)8连续导通模式PFC控制器中电流放大器补偿网络的分析电流放大器只在连续导通模式PFC控制器中使用,它的补偿网络也采用图1所示的形式。但各公司的PFC IC的产品资料中,关于补偿网络元件的计算方法,普遍缺乏对公式的详细说明,也没有给出前提条件,同一个元件的计算公式往往不尽相同,电路图中所给出的元件具体参数差异较大,彼此之间相差可达十多倍,无法使人确信哪个公式或参数更正确。因此建议读者在使用这些资料时,要通过自己的实验来作出正确与否的判断。
(Continued) 8 Continuous Conduction Mode Analysis of the Current Amplifier Compensation Network in a PFC Controller The current amplifier is used only in the continuous-on-mode PFC controller and its compensation network is also in the form shown in Figure 1. However, the product information of PFC ICs of various companies generally lacks the detailed description of the formulas and the preconditions for calculating the compensation network elements, and the formulas of the same element often have different formulas. As shown in the circuit diagram The specific parameters of the components vary greatly, with a difference of more than ten times each other, can not make people sure which formula or parameter is more correct. Therefore, readers are advised to use these materials, through their own experiments to make the right or wrong judgments.