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2 Simple MOSFET Gate Driver Circuits using BJTs

Last Updated on April 15, 2026 by Swagatam Leave a Comment

Very often we see that output coming from a microcontroller, oscillator, comparator, or PWM stage is just not strong enough for driving a power MOSFET directly, it gives signal, yes, but gate does not respond properly unless some decent current reaches there. A MOSFET gate behaves like a small capacitor, so now unless that gate […]

Filed Under: Voltage Control and Protection Tagged With: BJTs, Circuits, Driver, Gate, MOSFET, Simple

2 Simple RF Detector Circuits Explored

Last Updated on April 2, 2026 by Swagatam 10 Comments

RF detector circuit using transistors

In this article I have explained a couple of very easy to build RF detector circuits, which can be used to sense or detect or sorts of Rf electrical noise that may be floating in the surrounding atmosphere. What is RF RF stands for radio frequency, which is a kind of electrical interference transmitted in […]

Filed Under: Sensors and Detectors Tagged With: Circuits, Detector, Explored, RF, Simple

9 Simple Solar Battery Charger Circuits

Last Updated on March 31, 2026 by Swagatam 538 Comments

garden2Blight

Simple solar charger circuits are small devices which allow you to charge a battery quickly and cheaply, through solar panels. A simple solar charger circuit must have 3 basic features built-in: In this post I will comprehensively explain nine best yet simple solar battery charger circuits using the IC LM338, transistors, MOSFET, buck converter, etc […]

Filed Under: Solar Controller Circuits Tagged With: Battery, Charger, Circuits, Simple, Solar

7 Simple Continuity Tester Circuits Explained

Last Updated on March 24, 2026 by Swagatam 43 Comments

simplecontinuitytestercircuit

If you are looking for a simple circuit to test continuity of wires and long conductors, the explained 7 easy to build continuity circuits are the ones which you can try and might fulfill your requirement. What is a Continuity Tester A continuity tester is a device which is used for identifying the correct continuity […]

Filed Under: Meters and Testers Tagged With: Circuits, Continuity, Explained, Simple, Tester

Motorcycle Voltage Regulator Circuits

Last Updated on March 13, 2026 by Swagatam 226 Comments

mosfetregulatorcircuit3phase

In the article below I have explained a compilation of simple yet accurate motorcycle voltage regulator circuits, which can be used for regulating the varying alternator voltage into a fixed DC voltage. Voltage regulator circuit is very important in motorcycles and two wheelers since they ensure a regulated battery charging thus keeping the battery safe […]

Filed Under: Automobile Electronics Tagged With: Circuits, Motorcycle, Regulator, Voltage

5 Simple Water Level Controller Circuits

Last Updated on January 22, 2026 by Swagatam 213 Comments

An automatic water level controller is a device which senses undesired low and high water levels in a tank, and switches a water pump ON or OFF accordingly to maintain an optimal water content in the tank. In this article I have explained 5 simple automatic water level controller circuits which can be used for […]

Filed Under: Water Controller Tagged With: Circuits, Controller, Level, Simple, Water

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