2 Way Speaker Box Design

54 years ago

This is 2 way speaker box design for audio system. I've used this design for my home audio system, the…

USB Power Booster for PC / Laptop

54 years ago

This is the circuit diagram of USB power booster, expecially to strength the power capability of USB port from PC…

Car Parking Guard based IR Sensor

54 years ago

This is the circuit diagram of car parking guard based IR sensor to detect the distance between car bumper and…

Ultra Bright LED Emergency Light

54 years ago

This is LED emergency light that will turned on automatically when mains supply fails, and turned off when mains power…

Ultrasonic Distance Detector / Sonar Ranging System

54 years ago

This is the ultrasonic distance detector or sonar ranging system which can be used for general purpose. There are kit…

Static Circuit Breaker / RFI Eliminator

54 years ago

This is the circuit diagram of Static Circuit Breaker.? Many a times you must have heard an undesired sharp sound…

Speaker Protection Circuit (Stereo)

54 years ago

This is the speaker protection circuit, provides stereo speaker protection and prevents switch-on clicks and DC components on the output…

Digital Tachometer / RPM Meter

54 years ago

This is the circuit diagram of Digital Tachometer / Digital RPM Meter which can be used for cars or motorcycles…

Digital DC Voltmeter based ICL7107 Chip

54 years ago

Here is the schematic diagram of digital DC voltmeter built based IC ICL7107. The power supply for this circuit is…

230V Automatic Night Lamp

54 years ago

This is the circuit diagram of 230V automatic night lamp based photo resistor to sensing the light environment. When the…