Triangle wave generator circuit using Schmitt-Trigger
It is easy use a few parts, you can make it now! Read more
Simple Li-ion Battery Charger Circuit with Automatic Cut-Off
Let’s make Simple Li-ion Battery Charger Circuit with auto cut off when fully charged. To revive batteries that dead or so old. And using common components NE555, TL431. Read more
3 Solar Light Circuit
This is Outdoor solar lights circuits made by my son, at day solar charge to battery then night LED light up without AC line, Relay control the solar current […] Read more
Experimenting with LM317 as power switch controller
Learn how LM317 can be a power switch controller instead of a transistor. Try a simple power pulse generator circuit.
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Creating a simple 1.5V LED Flasher circuit
Creating simple 1.5V LED flasher circuit, With just one AA battery, it’s efficient enough to last for 1 year. and uses very few components. Read more