Output voltage ripple waveforms under different conditions are shown in the following figures.

Channel 1 is the AC portion of the output voltage, channel 3 is primary resonant current, and channel 4 is load current.

Figure 3-8 Output Voltage Ripple Under 380-V,
0-A Load

Figure 3-10 Output Voltage Ripple Under 380-V,
84-A Load

Figure 3-12 Output Voltage Ripple Under 400-V,
40-A Load

Figure 3-14 Output Voltage Ripple Under 420-V,
0-A Load

Figure 3-16 Output Voltage Ripple Under 420-V,
84-A Load

Figure 3-9 Output Voltage Ripple Under 380-V,
40-A Load

Figure 3-11 Output Voltage Ripple Under 400-V,
0-A Load

Figure 3-13 Output Voltage Ripple Under 400-V,
84-A Load

Figure 3-15 Output Voltage Ripple Under 420-V,
40-A Load