| ??? 08/20/08 02:54 Read: times |
#157558 - 3-phase Inverter IGBT phase waveform |
I am working on a 3-phase inverter using IGBTs, driven by PWM. Randomly, I get strange waveforms on one of the phase output. I checked IGBTs and their snubbers. These seem okay. So, this has really surprised me. The strange waveforms are on: (although may not be strange to many experts out here):
waveform-1 waveform-2 I am wondering if anyone could advise me on this... |
| Topic | Author | Date |
| 3-phase Inverter IGBT phase waveform | 01/01/70 00:00 | |
| you are going to burn the motor | 01/01/70 00:00 | |
| Its a sine PWM | 01/01/70 00:00 | |
| ...or the IGBTs! | 01/01/70 00:00 | |
| i had same problem on a Hitachi 48kw inverter | 01/01/70 00:00 | |
| Gate Drive | 01/01/70 00:00 | |
| The driver cktry and the waveforms | 01/01/70 00:00 | |
| Bootstrap capacitors problems | 01/01/70 00:00 | |
| Some hints | 01/01/70 00:00 | |
| another interesting waveform | 01/01/70 00:00 | |
| No, no.... | 01/01/70 00:00 | |
Voltage rating of bootstrap capacitor | 01/01/70 00:00 |