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Archives for 2019

Bidirectional Switch

Last Updated on July 13, 2025 by Swagatam 79 Comments

bidirectional switch symbbol

In this post I have explained about MOSFET bidirectional power switches, which can be used for operating a load across two points bidirectionally. This is simply done by connecting two N-channel, or P-channel MOSFETs back to back in series with the specified voltage line. What is a Bidirectional Switch A bidirectional power switch (BPS) is […]

Filed Under: Power Supply Circuits Tagged With: Bidirectional, Switch

How to Calculate Ferrite Core Transformers

Last Updated on July 5, 2025 by Swagatam 273 Comments

center tapped transformer

Calculating ferrite transformer is a process in which engineers evaluate the various winding specifications, and core dimension of the transformer, using ferrite as the core material. This helps them to create a perfectly optimized transformer for a given application. The post presents a detailed explanation regarding how to calculate and design customized ferrite core transformers. […]

Filed Under: SMPS and Converters Tagged With: Calculate, Core, Ferrite, Transformers

10 Best Timer Circuit Diagrams using IC 555

Last Updated on January 17, 2025 by Swagatam 89 Comments

plotting of capacitor vs resistor for IC 555 time delay range

The circuits I have explained here are 10 best small timer circuits using the versatile chip IC 555, which generates predetermined time intervals in response to momentary input triggers. The time intervals can be used for keeping a relay controlled load ON or activated for the desired amount of time and an automatic switch OFF […]

Filed Under: Timer and Delay Relay Tagged With: 555, Best, Diagrams, Timer

IC 723 Voltage Regulator – Working, Application Circuit

Last Updated on January 14, 2025 by Swagatam 35 Comments

IC723 block diagram

In this post I have explained the main electrical features, pinout specifications, datasheet, and application circuit of the IC 723. The IC 723 is a general purpose, extremely versatile voltage regulator IC, which can be used for making various types of regulated power supplies such as: Main Features ABSOLUTE MAXIMUM RATINGS Pinout Functions Pin 1 […]

Filed Under: Power Supply Circuits Tagged With: 723, Application, Regulator, Voltage, Working

How to Calculate Modified Sine Waveform

Last Updated on January 23, 2024 by Swagatam 6 Comments

modified squarewave RMS calculation

I am sure you might have often wondered how to accomplish the correct way of optimizing and calculating a modified square wave such that it produced almost an identical replication of a sine wave when used in an inverter application. The calculations discussed in this article will help you to learn the technique through which […]

Filed Under: Inverter Circuits Tagged With: Calculate, Modified, Sine, Waveform

How to Repair Mosquito Swatter Bats

Last Updated on January 23, 2024 by Swagatam 89 Comments

repair mosquito bat

Repairing a mosquito bat is a process in which a malfunctioning mosquito bat is checked for faults using meters and restored to its earlier working condition. This post provides some general tips regarding how to repair a mosquito swatter bat or racket, through quick steps. Mosquito rackets today have become an indispensable tool in every […]

Filed Under: Pets and Pests Tagged With: Bats, Mosquito, Repair, Swatter

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