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Simple FET Circuits and Projects

Last Updated on January 16, 2021 by Swagatam 2 Comments

The Field-Effect Transistor or the FET is a 3 terminal semiconductor device which is used for switching high power DC loads through negligible power inputs. The FET comes with some […]

Filed Under: Mini Projects

Variac Circuit for Controlling Large DC Shunt Motors

Last Updated on December 31, 2020 by Swagatam Leave a Comment

The simple DC shunt motor controller circuit presented in the following article uses a variac. This design facilitates an instant stopping of the motor at any stage with a flick […]



Filed Under: Motor Controller

Understanding MOSFET Avalanche Rating, Testing and Protection

Last Updated on December 3, 2020 by Swagatam 5 Comments

In this post we discuss MOSFET avalanche ratings, and learn how to understand this rating in the datasheet correctly, how the parameter is tested by the manufacturer, and measures to […]

Filed Under: Electronic Devices and Circuit Theory

Easy H-Bridge MOSFET Driver Module for Inverters and Motors

Last Updated on December 16, 2020 by Swagatam 6 Comments

If you are wondering if there’s an easy way to implement an H-bridge driver circuit without using the complex bootstrapping stage, the following idea will precisely solve your query. In […]

Filed Under: Inverter Circuits, Motor Controller

What is IGBT: Working, Switching Characteristics, SOA, Gate Resistor, Formulas

Last Updated on November 25, 2020 by Swagatam Leave a Comment

IGBT stands for Insulated-gate-Bipolar-Transistor, a power semiconductor which includes the features of a MOSFET’s high speed, voltage dependent gate switching, and the minimal ON resistance (low saturation voltage) properties of […]

Filed Under: Electronic Devices and Circuit Theory, Electronics Tutorial

LiFePO4 Battery Charging/Discharging Specifications, Advantages Explained

Last Updated on November 9, 2020 by Swagatam Leave a Comment

While Li-Ion and Lithium polymer electrolyte (LiPo) batteries possess unmatched energy density, Lithium-based batteries are costly to produce and need meticulous handling along with a cautious charging. With the advancement […]

Filed Under: Battery Chargers, Electronics Tutorial



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