| ??? 05/02/05 19:50 Read: times |
#92757 - noise as always Responding to: ???'s previous message |
At times the relays don't hold, their state, it happens mostly when the gear motor turns on or off.
with 98.17% certainty you are dealing with noise. When "the relays don't hold" I take that the TPIC outpiut has changed. Since you operate with two boards, my approach would be to add a RC to each input followed by a schmitt trigger. This, of course would force you to clock very slowly. If your app require that you use a fast clock, go through all the noise recommendations in the FAQ (you should do that anyhow). Erik |
| 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 |