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“Power supply is one of the most important tool on your workbench, but they are too expensive (like >50 for the 30v 5 amps version).Today I want to make a good and cheap power supply, it will not be …

“In this project I will show you how to create a Laptop PowerBank. It mainly consists of a Li-Ion battery pack and one buck and boost converter. This way the PowerBank can get charged up through the Laptop power supply …

“Get cozy.. the instructable youre about to read is something I have been working on for a year and a half (mostly during the night and weekends) so this read might be a bit longer than one would expect. Though …

“i first made this sollar light last summer when we had problems with electricity in our cabin (tree fall on power line and we didn’t have any lightsource when we wanted to stay there over night) it works werry …

“A power supply is an essential device when you are working with electronics. If you want to know how much power your circuit is consuming, you will need to take voltage and current measurements and then multiply them to get …

“Homemade power supply, ideal for testing leds, motors and other electronics. List: -Dual Meter -DC module -10 k precision potentiometer or - Normal 10k Potentiometer”

“Today we will learn how to make a buck converter using simple tools. we will make 5volt + 12volt Buck 3A If you understand the principle of the work you can make a buck converter with any voltage you want. Let …

“Every engineer needs at least one bench power supply in his house. I agree one can get the power supply directly from the store, but they are costly and some are ugly in terms of design too. We all need …

“I needed a small single cell LiPo charger and 3.3V buck booster for my IoT stuff. A small footprint and multi purpose for different size of LiPo cells”

“Sometimes buying a ready made power supply is just not good enough, especially if we want something special. I needed a super efficient 1 Amp power supply for my autonomous weather station that lives in the middle of a field …