Circuit-test DCL-420 Technical Information PDF herunterladen (Seite 37)

Easy Automotive Modules

Evaluation Kit EASYKIT AUX DRIVES (FS50R07W1E3_B11A)

Experimental Results

Application Note 37 AN2012-10

Evaluation Kit EASYKIT AUX DRIVES (FS50R07W1E3_B11A)

6.3.1 IGBT Turn-on (300V, 25A, 150°C)

The simplified circuit of the IGBT turn-on testbench is shown in Figure 28. 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,on=2.2Ω. No

booster stage is implemented. The gate driver achieves in this case ≈0.7A peak current.

Figure 28 Equivalent circuit of the IGBT turn-on testbench. DUT is the low right IGBT. The low side

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

measured during the second turn-on pulse.

Supply

System

<450V

Vce

Vge

Trigger

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Circuit-test DCL-420 Technical Information Seite 37