TIDT435 February 2025
3.1 Switching
Switching behavior of Secondary MOSFET is shown in Figure 3-1 through Figure 3-24. The test condition is room temperature.
CH1: Vgs of Secondary MOSFET
CH2: Vds of Secondary MOSFET
CH3: Differential voltage of transformer primary winding
CH4: Current waveform of transformer primary winding
Figure 3-1 Switching at 400Vin,
9Vout, 20A Load
Figure 3-3 Switching at 400Vin,
9Vout, 120A Load
Figure 3-5 Switching at 400Vin,
13.5Vout, 60A Load
Figure 3-7 Switching at 600Vin,
9Vout, 20A Load
Figure 3-9 Switching at 600Vin,
9Vout, 250A Load
Figure 3-11 Switching at 600Vin,
13.5Vout, 120A Load
Figure 3-13 Switching at 600Vin,
16Vout, 20A Load
Figure 3-15 Switching at 600Vin,
16Vout, 250A Load
Figure 3-17 Switching at 800Vin,
9Vout, 120A Load
Figure 3-19 Switching at 800Vin,
13.5Vout, 20A Load
Figure 3-21 Switching at 800Vin,
13.5Vout, 250A Load
Figure 3-23 Switching at 800Vin,
16Vout, 120A Load
Figure 3-2 Switching at 400Vin,
9Vout, 60A Load
Figure 3-4 Switching at 400Vin,
13.5Vout, 20A Load
Figure 3-6 Switching at 400Vin,
13.5Vout, 120A Load
Figure 3-8 Switching at 600Vin,
9Vout, 120A Load
Figure 3-10 Switching at 600Vin,
13.5Vout, 20A Load
Figure 3-12 Switching at 600Vin,
13.5Vout, 250A Load
Figure 3-14 Switching at 600Vin,
16Vout, 120A Load
Figure 3-16 Switching at 800Vin,
9Vout, 20A Load
Figure 3-18 Switching at 800Vin,
9Vout, 250A Load
Figure 3-20 Switching at 800Vin,
13.5Vout, 120A Load
Figure 3-22 Switching at 800Vin,
16Vout, 20A Load
Figure 3-24 Switching at 800Vin,
16Vout, 250A Load