Hi Ti Team，
1，
I use LM3421 to do a step-down parallel dimming. Figure 1 is my test PWM dimming and main switching waveforms. Is the following figure normal? The schematic diagram is refer to Figure 2
Figure 1：
Figure 2,
2,There is also a problem: increasing the capacitance C0 will not be able to dimming, no matter how large the capacitance value of CO
