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https://www.instagram.com/takao21606/ buy electric parts here http://stores.ebay.com/pic-hitechworld Arduino modules, transistors, LEDs, ICs, radio parts, neon lamps A new LED lamp I made! 2x 3W chips, MT3608 booster, lithium battery from mobile phone power bank, USB charger TP4056. Using a wifi speaker globe as diffusor! It works quite well and the battery lasts about 24 hours.

TL494 SMPS – switching mode power supply

this is a prototype I have built for research purpose. Recently I have learned how to use MOSFET technology. 1x VGA cooler is used together with IRF9540 p-channel MOSFET. 20V/100A welding transformer is used as voltage source! With no load, DC output is about 60V. 1x 12V 50W bulb for testing. Actually today I tried a second bulb in parallel … Continue reading