| ??? 05/19/09 12:13 Read: times |
#165492 - Yes... Responding to: ???'s previous message |
Eventually, the motor currents are too high and make the mains voltage partially break down? Are the mains powered lamps flickering when running the motors?
Provided your mcu circuit is also mains powered, then take a multimeter and measure the input voltage of 7805 voltage regulator with and without the motors running. If the mains voltage collapses due to too high motor currents, then you might see a considerable voltage drop at input of voltage regulator. Narrow dips are hardly be seen, though, by this method. Of course, you can also measure the mains voltage directly with a multimeter, but I guess, that there are considerable spikes on mains potentially damaging your meter. I have seen cheap chinese multimeters having had their final barbecue when measuring mains interference... Try to contact the manufacturer of motors and motor controls and discuss with him your problems. I guess that there's only a proper motor filter lacking. Kai |
| Topic | Author | Date |
| TV Tracking | 01/01/70 00:00 | |
| TV camera properly shielded and grounded? | 01/01/70 00:00 | |
| TV camera properly shielded and grounded? | 01/01/70 00:00 | |
| Filters.... | 01/01/70 00:00 | |
| What have you tried to figure out the problematic path? | 01/01/70 00:00 | |
| Mains applications can behave nasty when measuring... | 01/01/70 00:00 | |
| USB-driven scope can be good to have | 01/01/70 00:00 | |
| conclusion,Thanks steve,kai and per | 01/01/70 00:00 | |
| Test first, then decide how to continue | 01/01/70 00:00 | |
| An UPS will only help for the moment... | 01/01/70 00:00 | |
| Surely | 01/01/70 00:00 | |
| Visiting. | 01/01/70 00:00 | |
| Test with ferrites too | 01/01/70 00:00 | |
| your' welcome | 01/01/70 00:00 | |
| Hmmm | 01/01/70 00:00 | |
| Yes... | 01/01/70 00:00 | |
Thanks | 01/01/70 00:00 |