| ??? 08/26/08 00:14 Modified: 08/26/08 00:16 Read: times |
#157748 - No, no.... Responding to: ???'s previous message |
M, what you observe is very probably an undersampling error, an artefact which can result from a beat made of frames containing subsequent sequences of a non periodic signal. Observing a fast non periodic signal by a digital scope with a slow sample rate setting will result in entirely trashy plots! Especially if the triggering isn't perfectly working. So, forget this 5ms deviation time setting...
Kai |
| 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 |