How to: AC Voltage Measurement using Arduino without Transformer

Engineeering Projects
ac voltage measurement using arduino without transformer

In electronics, Arduino has reshaped how we tinker with technology. Voltage measurement is a core aspect, but dealing with AC voltage adds complexity, especially without a transformer. Usually, transformers isolate high AC voltages for measurement. But when space or components are limited, Arduino offers an alternative. In this article, we’ll unravel measuring AC voltage using Arduino without the bulky transformer. Component Requirements for AC Voltage Measurement using Arduino without Transformer Arduino Board x 1 Grove- AC Voltage Sensor x 1 I2C LCD x 1 Circuit Description of AC Voltage Measurement…

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Building a Programmable Touch Power Supply Circuit

Engineeering Projects
Building a Programmable Touch Power Supply Circuit

Today, many gadgets use touch control – a simple touch makes things happen and adds a modern touch. People who enjoy electronics are creating their power supplies with LM317 variable IC regulators and special switches for power adjustments. There’s a cool project here called the “Programmable Touch Power Supply Circuit” It’s not just a regular power supply – it has touch magic. You can change settings by touching it, mixing tech with simplicity. Imagine devices without buttons – this project uses touch sensors. No searching for buttons – just touch…

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Optimizing Speaker Performance with Woofer and Tweeter Matcher Circuit

Engineeering Projects
woofer and tweeter matcher circuit diagram

Discover how a woofer and tweeter matcher circuit enhances audio systems by producing balanced sound. Learn how specialized components optimize low and high frequencies, leading to an enjoyable listening experience. Introduction: A speaker’s frequency response plays a crucial role in delivering high-quality sound across the audible spectrum. However, not all speakers can reproduce frequencies uniformly, leading to an imbalanced sound output. To overcome this challenge, audio systems incorporate specialized components known as woofers and tweeters, each optimized for handling specific frequency ranges. Woofer and Tweeter Function: Woofer: A woofer is…

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How to Design Power Supply for Electronics Systems

Engineeering Projects
DIY power supply circuit for project

Introduction to Power Supply for Electronics Systems A power supply plays a crucial role in the functioning of electronic systems. Most digital integrated circuits (ICs) require a ±5V supply, while linear ICs such as op-amps and special-purpose ICs need ±15V supplies. In this article, we will discuss a power supply that provides ±5V and ±15V outputs. The Power Supply Circuit: The block diagram of a typical power supply is illustrated in Figure 1. Figure 2 presents the schematic diagram of the power supply, designed to deliver an output voltage of…

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Frequency Shift Keying Demodulator Circuit

Engineeering Projects
Frequency shift keying demodulator circuit

Frequency Shift Keying (FSK) plays a significant role in the field of computer peripheral and wireless communication, facilitating the transmission of binary data or code. This technique involves the manipulation of a carrier frequency, which undergoes precise shifts between two pre-established frequencies. The utilization of FSK allows for efficient and reliable data transfer. Description of Frequency Shift Keying Demodulator Circuit An area where FSK finds particular utility is in demodulating signals, and the 565 phase-locked loop (PLL) serves as an excellent tool for FSK demodulation. In this context, a binary…

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Light-Sensitive Switch Circuit Using Op-Amp 741: A Comprehensive Guide

Engineeering Projects
light sensitive switch circuit using opamp 741

The light-sensitive switch is an ingenious electronic device that responds to the intensity of light falling on it, enabling the automatic switching of lights. In this article, we will explore a simple, cost-effective, and user-friendly light-sensitive switch circuit utilizing the popular op-amp 741. This circuit operates based on light sensing, intelligently turning lights on or off according to the ambient light conditions. Description of Light Sensitive Switch Circuit using Op-Amp 741 To delve into the intricacies of this circuit, let’s divide it into two sections: the power supply and the…

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Ripple-Free Short Circuit Protected Variable Power Supply Circuit Design

Engineeering Projects
ripple free short circuit protected variable power supply circuit

Power supply circuits are an essential component of any electronic device, providing the necessary voltage and current required for the smooth operation of the device. A well-designed power supply circuit ensures that the device receives a stable and regulated power supply, preventing damage due to voltage spikes or current surges. In this article, we will discuss a ripple-free short circuit-protected variable power supply circuit design which is a highly efficient and reliable circuit that can provide precise and stable voltage and current outputs. The circuit is designed to maintain a…

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Transistor and Diode Tester using 555 IC

Engineeering Projects
transistor and diode tester circuit

Transistors and diodes are fundamental components in electronics and play a significant role in many circuit designs. When it comes to incorporating these active components into a circuit, it’s crucial to ensure that they are working correctly. Therefore, it’s essential to have a reliable method to test transistors and diodes. Circuit Description of Transistor and Diode Tester using 555 IC In this article, we will discuss a simple yet effective transistor and diode testing circuit that can help you identify whether these components are functioning correctly or not. The circuit…

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AC Mains Voltage Indicator Circuit

Engineeering Projects
ac mains voltage indicator

An AC mains voltage indicator circuit is a very useful device that indicates the different levels of the mains voltage. This circuit utilizes three different LEDs to indicate the different ranges of voltage i.e. Low, Nominal, and High. It is important to know this information when you are working with electrical equipment because it can help you ensure that everything is working properly and that you are not overloading the circuit. Fortunately, you don’t need to be an electrical expert to build an AC mains voltage indicator. In fact, even…

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Digital Circuit Tester using 4049 IC

Engineeering Projects
digital circuit tester using 4049 IC

Digital circuits are an essential part of modern technology, and they power everything from smartphones to computers. However, detecting faults and troubleshooting digital circuits can be challenging, especially for those who are new to electronics. Here, we present a simple and versatile digital circuit tester that can help you identify problems in your circuits quickly and easily. Description of Digital Circuit Tester using 4049 IC The digital circuit tester described in this article is built around a CMOS hex inverter buffer CD4049 that contains six independent inverters labeled a-f. Inverter…

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