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Protector

Home EMF Radiation Protector Neutralizer Circuit

Last Updated on May 28, 2026 by Swagatam 43 Comments

EMFradiationneutrilizercircuit

The post investigates a circuit which can be used for negating or neutralizing the everlasting harmful low frequency EMFs created from our mains power line in our homes. The idea was requested by one of the interested readers of this blog. Technical Specifications I’m trying to find a device or plans to build a device […]

Filed Under: Home Electrical Circuits Tagged With: EMF, Home, Neutralizer, Protector, Radiation

Motorcycle Low Battery Over Discharge Protector Circuit

Last Updated on May 16, 2026 by Swagatam 37 Comments

motorcyclebatteryoverdischargeprotectorcircuit

A simple motorcycle battery over discharge protector circuit is explained in the following post. The circuit will prevent the battery from over-discharging by the motorcycle headlamp whenever the mo-bike alternator is not enabled or is idling in the neutral mode in which case the battery is normally subjected to excess loads via the headlamp bulb. […]

Filed Under: Automobile Electronics Tagged With: Battery, Discharge, Motorcycle, Over, Protector

Mains AC Short Circuit Breaker/Protector – Electronic MCB Circuit

Last Updated on February 15, 2026 by Swagatam 117 Comments

ShortCircuitbreaker

In this post I will try to explain the making of a simple 220 V, 120 V AC mains short circuit breaker using an SCR and a triac combination, (researched and designed by me). The circuit is an electronic version of the normal main circuit breaker MCB units that we use in our homes. Note: […]

Filed Under: Voltage Control and Protection Tagged With: AC, Breaker, Electronic, Mains, Protector, Short

AC 220V/120V Mains Surge Protector Circuits

Last Updated on November 10, 2024 by Swagatam 175 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

5 Useful Motor Dry Run Protector Circuits Explained

Last Updated on September 22, 2024 by Swagatam 272 Comments

motor2Bdry2Brunning2Bpreventor2Bcircuit

The 5 simple dry run protector circuits presented here shows simple methods by which  insufficient water conditions inside an underground tank can be sensed without introducing probes inside the underground tank, and thus preventing any possibility of motor dry running. The circuit also incorporates an overhead water overflow control feature. The idea was requested by […]

Filed Under: Water Controller Tagged With: Circuits, Explained, Motor, Protector, Useful

Mains AC Home Protector Circuit

Last Updated on March 10, 2024 by Swagatam 200 Comments

home protector circuit

This simple mains 220 V, 110 V AC voltage home protector circuit will protect all the mains operated appliances of your home from high and low voltage situations and also from sudden voltage surge. The circuit can be used with 220 V AC inputs and also with 110 V AC inputs. The circuit will basically […]

Filed Under: Voltage Control and Protection Tagged With: AC, Home, Mains, Protector

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