Posts by Keshav Ashok

Overview Have you ever thought about using an array of white LEDs as a compact lamp for your living room? If not, let me explain. Ready-made…

Overview There are numerous circuits available for low-voltage regulators. However, when it comes to higher voltages, like those needed for…

Overview Many people overlook the fact that several voltage regulator ICs come with an upper limit, typically around 35 V, for the input vol…

Overview This circuit serves well in scenarios requiring over-current protection. Let’s delve into a model train scenario as an illustration…

Overview Imagine you're setting up your home audio system, eager to enjoy your favorite music and podcasts with pristine clarity. You've hea…

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 driv…

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…

Overview In today's tutorial, we'll be creating a small and portable NiCd Battery Charger Circuit with Reverse Polarity Protection that can…

Overview In honor of the one-hundredth design published on this website and in response to numerous requests for a more potent amplifier tha…

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…

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…

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…

Overview In today's tutorial, we are going to make a "Stereo Headphone Amplifier Circuit" using TL072 IC. The designated purpose of this cir…