Timeline for Backup PWM signal for DC fans
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 20, 2019 at 17:44 | comment | added | Alex Life | Maxim gives us example: maximintegrated.com/en/design/technical-documents/app-notes/4/… | |
| Nov 19, 2019 at 5:28 | comment | added | Donovan du Plessis | Hi Alex, 3) The PWM level is 5V. I am thinking of placing a 5V regulator on the board as well in order to power the IC's. 4) How could you do it with a watchdog? Does the watchdog just send a pulse as a response? | |
| Nov 19, 2019 at 1:02 | comment | added | Nedd | There should also be a grounded cap after the diode to get a good DC signal, just a diode would give you a pulse. Also the 555 has a Reset input pin that might be useful with a simple DC enable/disable signal. | |
| Nov 19, 2019 at 0:50 | history | answered | Alex Life | CC BY-SA 4.0 |