Hacks of Electronics
Dual power supply circuit is the backbone of many electronic systems. Various circuits, especially those involving operational amplifiers, analog devices, and certain digital systems, require both positive and negative voltages to operate properly. This is where Dual Power Supply Circuits come into play. They provide symmetrical voltages (like +12V and -12V, +15V and -15V, etc.) […]
A Voltage Controlled Oscillator (VCO) using 555 timer is an oscillator whose output frequency is directly dependent on the input control voltage. VCOs are widely used in communication systems, tone generators, frequency modulation (FM), and various signal processing applications. One of the simplest and most economical ways to build a VCO is by using the […]
Engineers and designers widely use a buck converter circuit, also known as a step-down converter, to efficiently reduce a higher input voltage to a lower output voltage while maintaining high efficiency. They commonly use it in power supplies, battery chargers, electric vehicles, and embedded systems. Buck Converter Circuit Diagram Below is a typical Buck Converter […]
Contents What Is a Microprocessor? What Is an Integrated Circuit (IC)? Key Differences Between Microprocessors and Integrated Circuits When to Use a Microprocessor vs an Integrated Circuit Conclusion FAQ Microprocessors and integrated circuits (ICs) are foundational components in modern electronics, but they serve very different purposes. Understanding the distinction between these two can help in […]
Creating a wireless remote-control car using 433MHz RF modules is a classic electronics project. This guide explores a fully functional DIY 433MHz RF Remote Control Car Circuit using the HT12E/HT12D encoder-decoder pair, STX882/SRX882 RF modules, L293D motor driver, and BC557C transistors. We’ll also delve deep into how the transistors and diodes manage motor control and […]
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 […]