Structured on the IC TDA 1521, this straightforward stereo audio amplifier design uses just a few extra passive components and produces an impressive 12 + 12 watts of sound output. […]
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 […]
High Low Temperature Alarm Circuit using Transistors
This high/low temperature indicator circuit uses only BJTs and the temperature is being monitored by a thermistor. This straightforward temperature alarm circuit is set to sound an alert (either vocally […]
Remote Control Circuit for 220V Appliances
With a compact control device, home automation, sometimes referred to as domotics, enables us to turn on and off a variety of items, including entrance gates, shutters, curtains, TVs, hi-fi […]
Precision Solar Battery Charger using Comparator
Any solar panel may be used to maximize battery charging with this compact and accurate comparator-based solar battery charger configuration, which also guards against unintentional overloading. With the longer battery […]
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 […]