HC-SR501 PIR Motion Detector Guide to use In Applications

If you have ever walked into a room or steps and watched the lights turn ON…

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RC Phase Shift Oscillator using op amp 741

While working on signal testing and basic R&D setups, I often need a simple sine wave…

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Frequency to Period Converter

As we know frequency and period calculation can be done easily using simple formula T=1/f or…

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Simple Signal Amplifier with Gain Control Circuit

While working on signal testing and R&D activities on my work bench, I often felt need…

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Simple online LC Tank circuit Resonance Calculator

While working with RF circuits, oscillators, or even simple band pass filters, one basic calculation always…

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Simple EMF Detector and Electroscope Circuit

When ever I work with Transformers, Inductive circuit, I encounter a common problem, IS IT WORKING…

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Class A BJT Amplifier Biasing Methods

When I first started experimenting with transistor amplifiers, the most confusing part was not the gain…

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TOP 5 World’s Simplest Audio Amplifier Circuit

We use bulky Audio Amplifiers to drive speaker, In case you need to drive single speaker…

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Active Audio Equalizer Circuit

Equalizer circuit in a Audio System helps us to filter & adjust Bass, Mid, Treble frequencies.…

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Automatic Lithium Battery Charger Circuit

We mostly use Lithium Batteries for our electronic projects and applications. But these batteries are sensitive…

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