TIDT423 December 2024
3.2 Switching
Switching behavior is shown in Figure 3-5 through Figure 3-21.
Figure 3-5 115VAC, Vds_pri, Vsr_gate,
Full Load
Figure 3-7 90VAC, Full Load, Vds_pri,
Vbus Valley 83V
Figure 3-9 230VAC, 75% Load, 2.45A,
fsw = 133kHz
Figure 3-11 230VAC, 25% Load 0.82A,
fsw = 94kHz
Figure 3-13 230VAC, 20V, 200mW Load,
Vds_pri
Figure 3-6 230VAC, Vds_pri, Vsr_gate,
Full Load
Figure 3-8 230VAC, Full Load, 3.25A,
fsw = 125kHz
Figure 3-10 230VAC, 50% Load, 1.6A,
fsw = 128kHz
Figure 3-12 230VAC, 10% Load 0.32A,
fsw=39kHz
Figure 3-14 230VAC, 20V, Open Load,
Vds_priFigure 3-15 through Figure 3-21 are 115VAC input switching waveforms.
Figure 3-15 115VAC, 20V, 3.25A Full
Load, Vds_pri, fsw = 118kHz
Figure 3-17 115VAC, 20V, 1.8A 50%
Load, Vds_pri, fsw = 120kHz
Figure 3-19 115VAC, 20V, 0.32A 10%
Load, Vds_pri, fsw = 42kHz
Figure 3-21 115VAC, 20V, Open Load,
Vds_pri, 3 Consecutive Switching Cycles to Achieve First Valley
Switching
Figure 3-16 115VAC, 20V, 2.45A 75%
Load, Vds_pri, fsw = 127kHz
Figure 3-18 115VAC, 20V, 0.82A 25%
Load, Vds_pri, fsw = 107kHz
Figure 3-20 115VAC, 20V, 200mW Load,
Vds_pri