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Voltage

5 KVA to 10 KVA Automatic Voltage Stabilizer – 220 Volts, 120 Volts

Last Updated on January 3, 2024 by Swagatam 96 Comments

LM324 Operational Amplifier

Voltage stabilizer in the range of kVAs are powerful AC voltage stabilizer units specially designed for controlling and stabilizing high voltage fluctuations, for high power electrical equipment. In this article I have explained an easy to build a 7 stage high wattage in the order of 5000 to 1000 watts stabilizer circuit which can be […]

Filed Under: Voltage Control and Protection Tagged With: 220, Automatic, KVA, Stabilizer, Voltage, Volts

Inverter Voltage Drop Issue – How to Solve

Last Updated on December 21, 2021 by Swagatam 116 Comments

sq 1

Whenever PWM is employed in an inverter for enabling a sine wave output, inverter voltage drop becomes a major issue, especially if the parameters are not calculated correctly. In this website you might have come across many sine wave and pure sine wave inverter concepts using PWM feeds or SPWM integrations. Although the concept works […]

Filed Under: Inverter Circuits Tagged With: Drop, Inverter, Issue, Solve, Voltage

Low Dropout (LDO) Voltage Regulator IC KA378R12C – Pinout and Working Specs

Last Updated on June 29, 2019 by Swagatam 10 Comments

1

In this article I have explained the pinout functions, and datasheet of a versatile low dropout (LDO) voltage regulator IC KA378R12, and also presents a circuit diagram showing how to use the IC in practical applications. A related question was asked by Mr. Jon, which inspired me to update this post. The question can be […]

Filed Under: Power Supply Circuits Tagged With: Dropout, KA378R12C, LDO, Pinout, Regulator, Voltage

Mains High Low Voltage Protection Circuit with Delay Monitor

Last Updated on May 25, 2026 by Swagatam 167 Comments

opamp2BV

In this post I have explained an upgraded version of my previous mains 220V/120V high-low voltage cut off protection circuit which now includes a delayed restoration of power for the load with 3 LED power status indicators. The idea was requested by one of the dedicated members of this website. Circuit Objectives and Requirements Main […]

Filed Under: Security and Alarm Tagged With: Delay, High, Mains, Monitor, Protection, Voltage

Understanding Motorcycle Voltage Regulator Wiring

Last Updated on May 16, 2026 by Swagatam 102 Comments

2 PinRegulatorWiring

The article provides a detailed explanation regarding the various voltage regulator wiring configurations used in motorcycles. The article was submitted by Mr. Abu-Hafss. Technical Specifications After working on different voltage regulators, I feel to share my findings on your blog so that other people may also get benefit. Please insert the diagrams appropriately in the […]

Filed Under: Automobile Electronics Tagged With: Motorcycle, Regulator, Understanding, Voltage, Wiring

PWM Controlled Voltage Stabilizer Circuit

Last Updated on February 24, 2025 by Swagatam 79 Comments

pwm

In this post I have explained how to make a high power 100V to 220V H-bridge mains voltage stabilizer circuit using automatic PWM control. The idea was requested by Mr. Sajjad. Circuit Objectives and Requirements Secondary Features I like it to has an LCD to display parameters and a custom name,high voltage cut off, over […]

Filed Under: Voltage Control and Protection Tagged With: Controlled, PWM, Stabilizer, Voltage

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