Class B and AB power amps are very popular among HI-Fi enthusiasts, because they can deliver high-quality sound with low distortion and high efficiency. But how do they achieve this? […]
Logic Gate Circuits using BJTs
This article will teach you how to construct discrete transistor logic gates for NOT, AND, NAND, OR, and NOR. Transistor logic gates have BJT the primary benefit of operating at […]
Precision Temperature Alarm Circuits using Op Amps
This article explores the workings a couple of highly accurate op amp-based temperature alarm circuits. In essence, a temperature alarm circuit is a device that is intended to sense a level of […]
Simple String Light Circuits for Festival Decorations
In order to decorate houses for festivities like Christmas and Halloween, the article explains how to connect small 12 volt flashlight bulbs into colorful string lights. String Light Definition A […]
Transistorized Music Level Indicator Circuits for Amplifiers
A series of LEDs is illuminated successively in a push-pull switching fashion in response to an audio source, indicating the different intensities of the music. This type of indication is known […]
Li-Ion LED Driver Circuits using LT1932
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 […]