The article describes how to utilize a normal Li-Ion battery with a high-efficiency 1.5 V to 4.2 V LED driver circuit to improve lighting, prolong battery backup, and lengthen battery […]
Simple BJT and JFET Tester Circuits Explained
This post discusses a few straightforward yet reliable BJT transistor tester circuits that may be utilized to determine if a transistor is good or faulty. Simple Good or Not good Transistor Tester […]
TL431 Circuits and Datasheet
The TL431 is a popular adjustable precision shunt regulator integrated circuit that can be used as a voltage reference, precision current sink, or voltage regulator. Below are the electrical characteristics […]
Types of Touch Switch Circuits Explained
In this post we discuss several different types of electronic touch switch circuit, which can be used to toggle an electrical load simply by touching a piece of metal connected […]
Simple Relay Delay Timer Circuits using IC 4001
All of the figures below demonstrate how CD4001B CMOS NOR gate ICs can be used to create highly reliable delay relay timer circuits, with time interval range from a few […]
3 Easy SG3525 Inverter Circuits Explored
In this post we learn how to build 3 unique power inverter circuits using the IC SG3525. All these inverters will produce 220 V or 110 V AC from any […]