Timeline for Automatically switching from 9V battery to DC wall adapter on insertion
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Sep 26, 2014 at 21:30 | comment | added | Passerby | The diodes allow you to use an existing jack, but another thing the diodes will provide is reverse voltage protection if someone plugs the battery in wrong, or the wrong type of adaptor (center negative instead of center positive). Its worth the 20 cents. | |
| Sep 26, 2014 at 20:17 | comment | added | ACD | @Dogbert Umm...I don't know why Martin suggests this. They are completely unnecessary if you use this solution since the adaptor is disconnected from the battery when connected. | |
| Sep 26, 2014 at 17:58 | comment | added | Martin Petrei | The diodes are very inexpensive. It is an excellent proposal to add these two diodes. Improved design to a negligible cost. | |
| Sep 26, 2014 at 17:52 | comment | added | Cloud | Should I also include the diodes mentioned in one of the other answers? Are they necessary, or do they protect from unexpected scenarios (ie: someone plugs in a 4V source instead of a 12V source). | |
| Sep 26, 2014 at 17:49 | vote | accept | Cloud | ||
| Sep 26, 2014 at 17:31 | history | edited | Martin Petrei | CC BY-SA 3.0 |
added 324 characters in body
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| Sep 26, 2014 at 17:24 | history | answered | Martin Petrei | CC BY-SA 3.0 |