| ??? 11/21/05 20:00 Read: times |
#103963 - Put a CMOS transistor in series with Responding to: ???'s previous message |
I use 7414 because it is cheapest for production
When AC Supply is existed and Battery removed,Controller must Blinks a Led and Buzzer for alarming the Technician once more I see "I want the best money can buy, but I will not pay for it" Anyhow, a solution: Put a CMOS transistor in series with the "charging diode" an periodicallly turn it off and in thet short time measure the voltage on the battery. 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 |