Timeline for Can I replace a NIMH rechargeable pack with a resistor if I only want to run plugged in?
Current License: CC BY-SA 4.0
13 events
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| Jun 20, 2018 at 5:38 | history | tweeted | twitter.com/StackElectronix/status/1009309473675055104 | ||
| Jun 18, 2018 at 4:04 | comment | added | nke | What's the 8-pin chip in there? I can't find it on the schematic, and hte pictures from their version are a good bit different from what mine have (and there are two versions, the short one with multiple colors and the tall one with fading in and out blue.) I realized, in the end I asked the wrong question. There is a MUCH easier fix for this -- just route 3V DC in via the former battery leads. Is there any reason not to just route a pair of wires in for that and use a 3V adapter? | |
| Jun 18, 2018 at 3:57 | history | edited | nke | CC BY-SA 4.0 |
added 33 characters in body
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| Jun 18, 2018 at 3:53 | vote | accept | nke | ||
| Jun 17, 2018 at 23:36 | comment | added | Misunderstood | @LorenzoDonati that is a 200 mA, 5V AC adapter. | |
| Jun 16, 2018 at 7:26 | comment | added | LorenzoDonati4Ukraine-OnStrike | @IgnacioVazquez-Abrams If the reverse-engineered schematic is correct, the wall-wart is one of those evil devices having a center-negative barrel-jack. They were a bit more common about ~30 yrs ago (at least here in Italy). Nothing conceptually wrong, until you forget about it and try to reuse one for other projects. When I was a boy I fried a circuit I worked on for days with one of those evil things! :-) | |
| Jun 16, 2018 at 5:34 | comment | added | user57037 | Just remove the batteries and see what happens. If it doesn't work like that, add the resistor. If it still doesn't work, add a capacitor in parallel with the resistor. You will have to work out the power dissipation in the resistor and make sure it is reasonable. | |
| Jun 16, 2018 at 3:56 | answer | added | crj11 | timeline score: 4 | |
| Jun 16, 2018 at 3:07 | comment | added | Ignacio Vazquez-Abrams | Someone did it for you. Cutting the batteries loose should suffice. | |
| Jun 16, 2018 at 2:47 | comment | added | Ignacio Vazquez-Abrams | You should determine the schematic of the device in question before trying to decide your next action. | |
| Jun 16, 2018 at 2:46 | answer | added | Tri | timeline score: -2 | |
| Jun 16, 2018 at 2:31 | review | First posts | |||
| Jun 16, 2018 at 6:07 | |||||
| Jun 16, 2018 at 2:30 | history | asked | nke | CC BY-SA 4.0 |