Is your power amplifier fuse blowing during power switch ON? It could be happening due to the initial high current drawn by the loudspeakers, when power is switched ON. The […]
Anti Spy RF Detector Circuit – Wireless Bug Detector
A anti-spy or bug detector circuit is a device that detects hidden wireless electronic devices such as wireless microphones, spy cameras, Wi-Fi devices, GPS trackers or any gadget that emits […]
2 Simple Bidirectional Motor Controller Circuits Explored
A circuit which allows a connected motor to operate in clockwise and anticlockwise directions through alternate input triggers is called a bidirectional controller circuit. The first design below discusses a […]
5 KVA to 10 KVA Automatic Voltage Stabilizer – 220 Volts, 120 Volts
Voltage stabilizer in the range of kVAs are powerful AC voltage stabilizer units specially designed for controlling and stabilizing high voltage fluctuations, for high power electrical equipment. In this article […]
LM324 Quick Datasheet and Application Circuits
In this post we are going to take a look at the popular LM 324 IC. We will be looking at the pin configuration, its important features and its technical […]
Multiple Battery Charger Circuit using Dump Capacitor
In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was […]
RPM Controller Circuit for Diesel Generators
The post discusses a diesel generator RPM controller circuit for boats using PWM technique and also using a simple triac shunt circuit. The idea was requested by Mr. Dave. Circuit […]
How to Interface 4×4 Keypad with Arduino
In this post we are going to learn how to interface a 4×4 keypad with Arduino. We are going to see what is a keypad, how it is constructed and […]
How to Make a Simple Math Calculator using Arduino
In this post, we are going to construct a calculator using Arduino, which can perform far complex arithmetical calculation than an ordinary calculator. The motto of this post is not […]
How to Build a Microphone Amplifier Circuit
In this article we are going to see how to build a microphone amplifier circuit with operational amplifier LM324. This circuit can be used as good pre-amplifier for audio projects. […]