| ??? 07/02/09 12:04 Modified: 07/02/09 12:07 Read: times |
#166649 - At both needed! Responding to: ???'s previous message |
Lukas said:
Do you mean the diode in parallel with the relay coil in my schematic or the snubber at the output pins of the relay when switching inductive load? At both you need a snubber, when the load shows some relevant inductance! So, also connect a free wheeling diode across your door opener. See figure 2 of this link http://www.autec-gmbh.de/english/D...E_KDR8.pdf Kai |
| Topic | Author | Date |
| Relay control - 8051... | 01/01/70 00:00 | |
| looks good to me but ... | 01/01/70 00:00 | |
| Concept seems fine... | 01/01/70 00:00 | |
| re: relay control | 01/01/70 00:00 | |
| NPN and standard '51? | 01/01/70 00:00 | |
| standard 8051 | 01/01/70 00:00 | |
| Ye standard 8051 and the C8051Fxxx ... | 01/01/70 00:00 | |
| two times only... | 01/01/70 00:00 | |
| Relay Drive: Previously, on 8052.com | 01/01/70 00:00 | |
| 'ED2 is "biblical" as far as ports are concerned | 01/01/70 00:00 | |
| snubber | 01/01/70 00:00 | |
| At both needed! | 01/01/70 00:00 | |
| AC opener... | 01/01/70 00:00 | |
| 12V AC? | 01/01/70 00:00 | |
| yes... | 01/01/70 00:00 | |
| I would drive it by a DC source! | 01/01/70 00:00 | |
| Just have seen... | 01/01/70 00:00 | |
a little information | 01/01/70 00:00 |