Overview Imagine you’re setting up your home audio system, eager to enjoy your favorite music and podcasts with pristine clarity. You’ve heard about the benefits of modular components, and specifically, the importance of a reliable … Read more
Keshav Ashok
Overview A portable USB hard drive serves as an efficient means to back up data, yet what if your USB ports lack the necessary power to drive the device? The solution lies in a modified … Read more
USB Power Injector Circuit For External Hard Drives
Overview Imagine you’re on a camping trip, far from power outlets, but your phone’s battery is running low. You wish you had a way to charge it using the USB port on your power bank. … Read more
USB Powered Mobile Phone Battery Charger Circuit
Overview In today’s tutorial, we’ll be creating a small and portable NiCd Battery Charger Circuit with Reverse Polarity Protection that can charge multiple batteries simultaneously. NiCd Batteries? NiCd batteries, short for nickel-cadmium batteries, are a … Read more
NiCd Battery Charger Circuit with Reverse Polarity Protection
Overview In honor of the one-hundredth design published on this website and in response to numerous requests for a more potent amplifier than the 25W MOSFET model, we present a 60 – 90W High-Quality power … Read more
60-Watt Audio Power Amplifier Circuit using
Overview In today’s tutorial, we are going to make an “Finger Operated One Second Audible Clock Circuit” using a CD4024 IC. This precise one-pulse-per-second clock is constructed using a few standard components and synchronized with … Read more
Finger Operated One Second Audible Clock Circuit
Overview In today’s tutorial, we are going to make a “Dual Channel 12 Volt Relay Driver Circuit” using BC547 Transistors. A simple and user-friendly method for interfacing two relays for switching applications in your project … Read more
Dual Channel 12v Relay Driver Board Circuit
Overview In today’s tutorial, we are going to make an “18W Stereo Hi-Fi Audio Amplifier” using TDA2030 IC. The design comprises a 2x 18W Hi-Fi Stereo Power Amplifier utilizing two TDA2030 ICs. This configuration offers … Read more
18W Stereo Hi-Fi Audio Amplifier using TDA2030 IC
Overview In today’s tutorial, we are going to make a “Stereo Headphone Amplifier Circuit” using TL072 IC. The designated purpose of this circuit is just one among numerous potential applications. Besides its primary role as … Read more
Stereo Headphone Amplifier Circuit using TL072
Overview In today’s tutorial, we are going to make a “7-Watt Audio Power Amplifier Circuit” using TDA2003 IC. This compact amplifier is built around the TDA2003 integrated circuit (IC), capable of delivering 4-watt RMS at … Read more
7-Watt Audio Power Amplifier Circuit using TDA2003
Overview In today’s tutorial, we are going to make a “Universal Battery Charger Circuit” using a BD135 transistor. Here is the schematic of an affordable universal battery charger designed specifically for NiCD and NiMH batteries. … Read more