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Voltage Control and Protection

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

3 Tested 220V High and Low Voltage Cut OFF Circuits Using IC LM324 and Transistors

Last Updated on January 19, 2024 by Swagatam 176 Comments

over2Bvoltage2Bprotector

An AC mains high/low cut-off device will cut off or disconnect the mains supply from home electrical whenever a high voltage or low voltage situation is detected. In this way it ensures total safety to the home wiring and appliances from fire hazards, due to abnormal over voltages, brown outs or low voltages. In this […]

Filed Under: Voltage Control and Protection Tagged With: 220V, Circuits, High, OFF, Tested, Voltage

AC 220V/120V Mains Surge Protector Circuits

Last Updated on November 10, 2024 by Swagatam 174 Comments

Simple Mains AC Surge Protector Circuit Diagram2C Image

Voltage spikes  can sometimes be a big nuisance as far as the safety of the various electronic appliances are concerned. I have explained how to make a simple AC Mains surge protector circuits at home. What is a Surge Protector A surge protector is an electrical device which is designed to neutralize minor electrical spikes […]

Filed Under: Voltage Control and Protection Tagged With: 120V, 220V, AC, Mains, Protector, Surge

Automatic Voltage Stabilizer Circuit for TV sets and Refrigerator

Last Updated on November 8, 2024 by Swagatam 122 Comments

wiring

Here we will study the design of a simple automatic mains AC voltage stabilizer which can be applied for safeguarding appliances like TV and refrigerators from fluctuating voltages. A voltage stabilizer is a device which is designed to sense inappropriate voltage fluctuations in AC mains supply inputs, and correct them to produce a stabilized voltage for the […]

Filed Under: Voltage Control and Protection Tagged With: Automatic, Refrigerator, sets, Stabilizer, TV, Voltage

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