Passive RC Filter Circuits
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Passive RC Filters: Circuit Diagram, Types, Working and Applications

RC filters are the most fundamental signal-processing circuits in electronics. It uses a combination of a resistor (R) and a capacitor (C) to selectively allow or suppress signals based on their frequency. Despite its simplicity, the RC filter plays a crucial role in almost every electronic system, from basic audio amplifiers to complex communication and […]

UJT Unijunction Transistor
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UJT Unijunction Transistor Symbol, Construction, Working & Applications

The Unijunction Transistor (UJT) is a three-terminal semiconductor device that is mainly used for triggering, pulse generation, relaxation oscillators, and phase control circuits. Unlike the Bipolar Junction Transistor (BJT) or Field Effect Transistor (FET), the UJT does not function as an amplifier; instead, it acts as a switching device with negative resistance characteristics. The UJT […]

Difference Between Synchronous and Asynchronous Counters
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Difference Between Synchronous and Asynchronous Counters

Counters are fundamental digital circuits used in sequential logic for counting purposes. They are broadly classified into two types: Synchronous Counters and Asynchronous Counters. Understanding the difference between synchronous and asynchronous counters helps in choosing the right type for specific applications in digital electronics. These counters play a crucial role in modern digital systems, ranging […]