Apparently I need a schottky diode for this pummer project

[mle_online@social.afront.org]

Apparently I need a schottky diode for this pummer project

[ruenahcmohr@infosec.exchange]

@MLE_online wall wart. what parts do you have collected up?

1N5818 is common.

[mle_online@social.afront.org]

@RueNahcMohr I dont know if i have any wall warts, but I will look. lol, i knew this post would summon you

[h2onolan@infosec.exchange]

@MLE_online

injured in an accident? Call Pummer and Schottky, personal injury attorneys

[botvolution@mastodon.sdf.org]

@MLE_online
Oh that's interesting. I looked at a few when you first mentioned pummer as I'd never heard of it before and none of them showed a zener.
Which circuit did you use?

[mle_online@social.afront.org]

@botvolution This one! https://harrisonbroadbent.com/electronics/2sat/

[botvolution@mastodon.sdf.org]

@MLE_online
Ha i looked at that one but didn't read the text, and he didn't use the right diode symbol in the schematic lol

[mle_online@social.afront.org]

@botvolution yes he did

[clock@net.miaumuh.ch]

@MLE_online I upcycled power Schottkies from dead power supplies.

I connected a charger directly to battery terminals of a smartphone whose battery failed, over Schottky diodes to reduce the voltage properly.

Now I have a phone which always shows 90%-100% battery.

I ran Tesseract OCR on its 4x64-bit ARM CPU over Termux and ssh and it adds another 50% computational power to my PC when I needed to OCR many pages of documents.

The power Schottkies were upcycled from dead power supplies, the cable from a broken power cord, the USB-A connector from a failed charging cable, I don't remember what the resistor and PCB comes from.

#upcycling #recycling #reuse #frugal #frugalcomputing #frugality #righttorepair #repair #DIY #homemade #powersupply #charger #charging #smartphone #arm64 #tesseract #64bit

[drahflow@infosec.exchange]

@clock @MLE_online Our kitchen's audio setup runs on a similarly "de-batteried" smartphone. Except no voltage reduction at all, I just put the USB 5V directly on the battery terminal and let the on-board voltage stabilizer deal with it.