Timeline for IGBT operation failure at high current
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2022 at 9:47 | vote | accept | JangByeongJoo | ||
| Apr 13, 2022 at 9:47 | comment | added | JangByeongJoo | Thanks. I think the reverse voltage on the CE is too high and the diode in the IGBT is broken. There was no problem when I tried using a varistor with a low voltage and another IGBT. | |
| Apr 13, 2022 at 3:04 | comment | added | JangByeongJoo | The gate emitter voltage is 12V. The gate driver needs GND1 and GND2 for isolation, and the gate voltage follows the voltage difference between GND2 and Vdd2. The emitter is connected to the emitter of the IGBT. I didn't draw it by mistake. I will check with the oscilloscope today. Thanks for the advice. | |
| Apr 12, 2022 at 17:43 | history | edited | Marla | CC BY-SA 4.0 |
added 155 characters in body
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| Apr 12, 2022 at 17:01 | history | answered | Marla | CC BY-SA 4.0 |