In this piece, we examine a millivolt meter circuit built around an operational amplifier that is intended to precisely measure AC millivolts. Let’s examine the specifics through the explanation that […]
100 LED Lamp with a 3.7 Volt Battery
An inventive method of powering over a hundred white LEDs using a 3.7 volt battery is described in the article. The step-up transformer is driven by the IC 555 in […]