The transfer function of the analog voltage regulator is converted into discrete time mode, so that the corresponding digital control algorithm can be obtained.
文中将模拟调压器的传递函数进行数字化，得到了可以应用于数字调压器的控制算法。
This PFC was realized by employing sliding-mode variable-structure inner current loop control and outer voltage loop PI control with digital low-pass filter to achieve high performance.
提出了采用滑模变结构电流内环与由PI调节器和数字低通滤波器组成的电压外环相结合的控制系统，以实现高性能高速度的功率因数校正。
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