| ??? 11/25/04 22:59 Read: times |
#81962 - Use an optocoupler Responding to: ???'s previous message |
Use an optocoupler with AC input like the Sharp PC-814 and put one resistor in serial: 150K will work with a low power or put an RC parallell (the resistor will discharge the capacitor when you diconect)
If you can do it in the low voltage side of the transformer |
| Topic | Author | Date |
| 230V AC Monitoring | 01/01/70 00:00 | |
| Re: 230V AC monitoring. | 01/01/70 00:00 | |
| More questions | 01/01/70 00:00 | |
| reply | 01/01/70 00:00 | |
| Use an optocoupler | 01/01/70 00:00 | |
| Why opto? | 01/01/70 00:00 | |
| picture | 01/01/70 00:00 | |
| Mains detector | 01/01/70 00:00 | |
| "Mains"detector | 01/01/70 00:00 | |
| Earlier detect | 01/01/70 00:00 | |
Re: Earlier detect | 01/01/70 00:00 | |
| Why opto? | 01/01/70 00:00 | |
| Opto | 01/01/70 00:00 | |
| Capacitive Divider | 01/01/70 00:00 | |
| A word of warning | 01/01/70 00:00 | |
| Reply | 01/01/70 00:00 | |
| Voltage sensing | 01/01/70 00:00 | |
| Step down transformer | 01/01/70 00:00 | |
| Danger! | 01/01/70 00:00 | |
| Peak and RMS: Andy | 01/01/70 00:00 | |
| What? | 01/01/70 00:00 | |
| 230 Vrms | 01/01/70 00:00 |