Hacks of Electronics
In this article, we will explore the construction and working of a digital voltmeter circuit using the ICL7107, including how to measure both AC and DC voltages, how to calibrate the device, and an analysis of its advantages, limitations, and real-world applications. Digital voltmeters have become an essential part of electronics laboratories, industrial equipment, and […]
Building a powerful yet compact audio amplifier can greatly enhance your audio experience. This article details how to construct a 3-channel TDA2030 amplifier circuit with separate left, right, and bass channels, powered by a dual ±12V supply. Additionally, it integrates a bass filter circuit, Bluetooth support via a 7805 regulator, and multiple protection features to […]
Most electronic circuits, including microcontrollers, digital ICs, and operational amplifiers, require a stable 5V power supply. In this article, we will discuss how to build a simple yet reliable 5V power supply circuit using the LM7805 voltage regulator. This circuit is widely used in embedded systems, robotics, and general-purpose electronics due to its simplicity and […]