| ??? 07/02/09 21:01 Read: times |
#166678 - Just have seen... Responding to: ???'s previous message |
...that some of these AC/DC door openers seem to have a snubber already built-in. They are called EMV diodes, or like that. In that case you don't need to drive them by a DC source and connect an external snubber to it.
Do you have a link to the datasheet of your door opener? 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 |