| ??? 05/03/05 14:42 Read: times |
#92809 - Not on schematic Responding to: ???'s previous message |
If you are referring to the relay board, there are actually two not shown in the schematic. I have .1 uF ceramic at the TPIC, I also have a 330 uF electrolytic where power enters the relay board. I what thinking that the relays were pulling down the power to the TPIC, so I put the 330 as a reserve cap, but it didn't show any improvement. However while checking out this problem, I may have stumbled upon the answer to my other thread with the 'S52. The power drawn by my main stepper motor while ramping up and down puts ripple on the power supply and drops the voltage near 4.5V with no load. A second 2200 uF cap on the main board stopped the voltage drop, and reduced the ripple somewhat. I think if I can get the ripple out, during the ramping I may have my cure for my other thread.
Jon |
| Topic | Author | Date |
| Driving Relays with TPIC6C595 | 01/01/70 00:00 | |
| noise as always | 01/01/70 00:00 | |
| Check Power Supply & Driving | 01/01/70 00:00 | |
| Relay Noise? | 01/01/70 00:00 | |
| Did you get my mail? | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| a glaring omission | 01/01/70 00:00 | |
| Not on schematic | 01/01/70 00:00 | |
| please, pretty please | 01/01/70 00:00 | |
| Sorry | 01/01/70 00:00 | |
Jon, it was general | 01/01/70 00:00 |