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Voltage

Motor Protection Circuits – Over Voltage, Over Heat, Over Current

Last Updated on June 30, 2026 by Swagatam 29 Comments

DCMotorOverUnderVoltageProtectorCircuit

In this post I have explained a few DC motor protection circuit from harmful conditions like over voltage and under voltage situations, over current, overload etc.. DC motor failures are commonly experienced by many of the users, especially in places where the relevant motor is run for many hours a day. Replacing motor parts or […]

Filed Under: Motor Controller Tagged With: Circuits, Heat, Motor, Over, Protection, Voltage

High Voltage Transistors BUX 86 and BUX 87 – Specifications

Last Updated on May 18, 2026 by Swagatam 1 Comment

BUX 1

In this article we are going to make an effort to understand the technical specs of the BJTs BUX86 and BUX87 which are high voltage complementary paired transistors. Introduction The Bux 86 and BUX 87 are typically high voltage switching transistors with silicon epibase. They come in TO-126 package and are NPN types. These devices […]

Filed Under: Datasheets and Components Tagged With: BUX, High, Specifications, Transistors, Voltage

Difference Between Current and Voltage – What is Voltage, What is Current

Last Updated on May 20, 2026 by Swagatam 2 Comments

The following data explains the important aspects connected with the electrical parameters like voltage and current, the content also explains in simple words how to differentiate the two parameters. What is Current It is the number of electrons flowing at any instant through a conductor or across the positive and the negative of a conductor […]

Filed Under: Electronics Theory Tagged With: Between, Current, Difference, Voltage

Variable Voltage, Current Power Supply Circuit Using Transistor 2N3055

Last Updated on May 13, 2022 by Swagatam 318 Comments

Power Supply 1

In this post I have explained how to make a simple variable power supply circuit using transistor 2N3055 and some other passive components. It includes variable voltage and variable current feature, fully adjustable. Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […]

Filed Under: Power Supply Circuits Tagged With: Current, Power, Supply, Transistor, Variable, Voltage

2-Stage Mains AC Voltage Stabilizer Circuit

Last Updated on January 2, 2024 by Swagatam 33 Comments

c7cdc4f94ef3e4ab7b7c626cfb034114e7b774e0 orig

In this article I have explained how to make a 2 relay or two stage mains AC voltage stabilizer circuit for controlling and regulating 220V or 120V mains voltages through a simple circuit. Introduction In this power stabilizer circuit, one relay is wired to select the high or the low tap from the stabilizer transformer […]

Filed Under: Voltage Control and Protection Tagged With: AC, Mains, Stabilizer, Stage, Voltage

SCR/Triac Controlled Automatic Voltage Stabilizer Circuit

Last Updated on April 9, 2025 by Swagatam 77 Comments

TRIACCONTROLLEDSTABILIZERCIRCUIT

In this article I have explained a relatively simple triac controlled automatic mains voltage stabilizer circuit, which uses logic ICs and a few triacs for controlling the mains voltage levels. Why Solid State Being solid state in design, the voltage switching transitions are very smooth with minimum wear and tear, resulting in efficient voltage stabilization. […]

Filed Under: Voltage Control and Protection Tagged With: Automatic, Controlled, SCR, Stabilizer, Triac, Voltage

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