This paper analyzes the stability of the current controller based on generalized delayed signal cancellation (GDSC), and proposes a general design guideline. Since the GDSC-based controller has a structure similar to the fast repetitive controller (FRC), a general structure repetitive controller (GSRC) is presented, which can summarize the GDSC-based controller and FRC. The paper conducts a stability analysis of the GSRC using the small gain theorem, and gives a parameter design procedure according to the Nyquist curve. Experiment shows that APF using the designed GDSC-based controller has good stability and fast dynamic performance.