In this post I have explained a simple plug-in type night lamp circuit with delayed switch OFF and dimming facilities. The entire circuit is built using a transformerless power supply […]
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LM12 IC Datasheet, Application Circuits
LM12 is a power operational amplifier integrated circuit (IC) developed by National Semiconductor (now owned by Texas Instruments). It is designed for use in high-power audio amplifiers, servo amplifiers, and […]
Home Electromagnetic Radiation Detector Circuit
The assembly proposed in these lines is an electromagnetic radiation detector (power and others) that allows the user to organize their living space with full knowledge. Circuit Description The sensor […]
Random LED Number Generator for Gambling Application
In this post I have explained a random LED number generator circuit consisting of a 4 x 5 LED matrix, numbered from 1 to 20. On pressing a push button […]
How to Modify 78XX, LM323, LM350, LM317 Voltage Regulator Circuits
In this article I have explained many different methods of modifying voltage regulators ICs to improve their voltage and current handling characteristics. We learn how to externally modify these regulators […]
Delay OFF Lamp Timer Circuit
This delay off lamp timer circuit will automatically switch OFF a connected lamp after a predetermined time has elapsed. This time delay can be adjusted with a variable resistor or […]
