Soldering wires to neodymium magnets
Heat from the soldering iron did seem to affect the magnetisation - possibly moving it around - possibly inverting it…
Tech talk: 5v 5a synchronous rectification buck converter
A technical talk about this 5 volt regulator. It's a high efficiency high current synchronous rectification DC/DC buck converter with…
Mad idea: high voltage dc power transmission
Using a boost converter, a long piece of thin wire and a switched mode power supply to carry DC current…
Julian’s postbag: #70 – ten items in ten minutes well almost
My attempt to open ten items in ten minutes was an abject failure. The eBay items: Qi Wireless Fast Charger…
Dissection: poundland frog
Faulty Poundland frog repaired by removing a solder blob from the PCB. Also, some tests to see if different voltages…
Review test: lensun 100w semi-flexible solar panel
http://www.lensunsolar.com/Flexible-solar-panel/Lensun-100W-12V-Flexible-Solar-Panel,Sunpower-Back-Contact-Solar-Cell-for-12V-Battery-charge-motorhome,boats
First look: dps3012 cc cv buck converter with colour lcd
Programmable Constant Voltage Current Step-down Control Power Supply Module I9W6 http://www.ebay.com/itm/-/282101303216
Tech talk: aukey 10-port usb charger with quick charge 3.0
Lots of tech (and lots of talk) about Aukey's new 10-port USB charger. Product links and chip data sheet links…
First play: eachine touch t100 multi-chemistry charger #2
Time to crack open the Eachine Touch T100 Charger. Eachine Touch T100 7A 100W AC/DC Balance Charger Discharger For LiPo/NiCd/PB…