| ??? 08/30/05 09:36 Read: times |
#100273 - Re: Zero Detection Responding to: ???'s previous message |
Use an optocoupler, than your circuit is protected from voltages that can damage your microcontroller.
Search for a MIDI interface circuit to see how simple an optocoupler is used. Search for a 110/220V AC LED circuit used to feed the LED in the optocoupler or use a transformer. May be you can find here something: schematics |
| Topic | Author | Date |
| Zero Detection | 01/01/70 00:00 | |
| Zero crossing detection | 01/01/70 00:00 | |
| both | 01/01/70 00:00 | |
| Re: Zero Detection | 01/01/70 00:00 | |
| I do not know what for, but Philips has | 01/01/70 00:00 | |
| Have a look at this ... | 01/01/70 00:00 | |
| Opto Coupler | 01/01/70 00:00 | |
| A simple ckt. | 01/01/70 00:00 | |
| good enough for that but ~25% off zero i | 01/01/70 00:00 | |
| This is indeed dangerous! | 01/01/70 00:00 | |
| It is, I think, a Wall Wart. Anyhow the | 01/01/70 00:00 | |
| Ok | 01/01/70 00:00 | |
| language lesson | 01/01/70 00:00 | |
| Thanks... | 01/01/70 00:00 | |
No, no kids playing with the mains. | 01/01/70 00:00 |