Circuit-test DCL-420 Informacje Techniczne Pobierz pdf (Strona 35)

Easy Automotive Modules

Evaluation Kit EASYKIT AUX DRIVES (FS50R07W1E3_B11A)

Experimental Results

Application Note 35 AN2012-10

Evaluation Kit EASYKIT AUX DRIVES (FS50R07W1E3_B11A)

6.3 IGBT Turn-off (300V, 25A, 150°C)

The simplified circuit of the IGBT turn-off testbench is shown in Figure 26. Please note that the

environmental conditions are different from a standard characterization testbench, where the maximum

module performance is characterized. The gate driver has in this setup +15V/0V supply and Rg,off=2.2Ω. No

booster stage is implemented. The gate driver achieves in this case ≈1.7A peak current. The IGBT module

and gate driver circuit has no clamping circuits to limit Vce overshoot.

Figure 26 Equivalent circuit of the IGBT turn-off testbench. DUT is the low right IGBT. The low side

shunt is bridged and the current Ic is measured with a Rogowski current probe.

Supply

System

<450V

Vce

Vge

Trigger

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 63 64

Brak uwag

Circuit-test DCL-420 Informacje Techniczne Strona 35