| ??? 11/20/05 20:13 Modified: 11/20/05 20:20 Read: times |
#103930 - a suggestion Responding to: ???'s previous message |
assuming that by disconnected you mean removed
Taking the battery thrugh a divider to a port pin paralle with a zener will tell you, but load the battery. There are superlow quiscent current voltage regulator and if you use one of those to produce +5 for the uC to detect that should work. Erik |
| Topic | Author | Date |
| Battery Backup Trouble! | 01/01/70 00:00 | |
| a suggestion | 01/01/70 00:00 | |
| Suggestion may not work | 01/01/70 00:00 | |
| Simple, or simplistic? | 01/01/70 00:00 | |
| and it will state "no battery" when one | 01/01/70 00:00 | |
| Sorry | 01/01/70 00:00 | |
| Some more details please | 01/01/70 00:00 | |
| Use a proper Supervisor | 01/01/70 00:00 | |
| More Details! | 01/01/70 00:00 | |
| Put a CMOS transistor in series with | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| What battery do you use? | 01/01/70 00:00 | |
| 8*1.5(NI-CD)! | 01/01/70 00:00 | |
| NI-CD is 1.2*N | 01/01/70 00:00 | |
| But when is full it is more than 1.2v | 01/01/70 00:00 | |
| Kai,when you say your idea? | 01/01/70 00:00 | |
| Now... | 01/01/70 00:00 | |
| Thanks Dear Kai, | 01/01/70 00:00 | |
| How it works... | 01/01/70 00:00 | |
| Your Time is for all of us,Kai | 01/01/70 00:00 | |
I would prefer the Pb-battery | 01/01/70 00:00 | |
| A/D? | 01/01/70 00:00 |