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Newly Updated Circuit Projects:

Car Tank Water Sensor Circuit

Last Updated on May 22, 2026 by Swagatam 36 Comments

car2Btank

In this article I have explained a simple car tank water sensor alarm circuit using IC 555 and a pulsating signal on the sensing probes to pevent corrosion on the probes. The idea was requested by Mr. Peter. Circuit Objectives and Requirements The Design Referring to the figure below, the proposed car tank water sensor […]

Filed Under: Automobile Electronics, Water Controller Tagged With: Sensor, Tank, Water

3-Step Automatic Fast Battery Charger/Controller Circuit

Last Updated on May 22, 2026 by Swagatam 272 Comments

3stepbatterychargercircuit

Generally it is noticed that while charging batteries people hardly pay any special attention toward the procedures. For them charging a battery is simply connecting any DC supply with matching voltage with the battery terminals. A fast battery charger circuit charges a battery with enhanced speed so that it is charged in less time than the specified period. […]

Filed Under: Battery Charger Circuits Tagged With: Automatic, Battery, Charger, Controller, Fast, Step

Solid-State Inverter/Mains AC Changeover Circuits Using Triacs

Last Updated on May 21, 2026 by Swagatam 24 Comments

inverter2Bmains2Bchangeover

In this post I have explained 2 simple concepts for making solid-state triac based Inverter/mains AC changeover circuit, the idea was requested by Music girl. Technical Specifications I would like to replace the SPDT relay with 2 scr’s. Would you consider a circuit to replace those changeover relays? I believe a relay would need to […]

Filed Under: Grid and 3-Phase Tagged With: AC, Changeover, Inverter, Mains, Solid, State

Grid Load Power Monitor Circuit for GTI

Last Updated on May 21, 2026 by Swagatam 6 Comments

power2Bmonitor

In this post I have explained a circuit idea which can be used as a power monitor and control system for ensuring that only the specified amount of watts is allowed to enter into the allocated socket, as per the maximum calculated wattage of the appliances connected across those points. The idea was requested by […]

Filed Under: Grid and 3-Phase Tagged With: Grid, GTI, Load, Monitor, Power

Remote Controlled ATS Circuit – Wireless Grid/Generator Changeover

Last Updated on May 21, 2026 by Swagatam 21 Comments

ats 2

In this post I have explained a remote controlled automatic transfer switch for enabling an automatic grid to generator changeover action from a specified distance. The idea was requested by Mr. odudu johnson. Technical Specifications Project description: Automatic changeover switch with wireless generator control abilities or mechanism.The generator rating is going to be between 2.2kva […]

Filed Under: Grid and 3-Phase, Remote Control Circuits Tagged With: ATS, Controlled, Generator, Grid, Remote, Wireless

Emergency Generator Circuit Power Distribution

Last Updated on May 21, 2026 by Swagatam 1 Comment

truthtable

In this post I have explained a twin generator network system to be used for two separate houses during power failure and through automatic changeover.The idea was suggested by Mr. Ahmad. The Circuit Idea and Objective Thank you for posting the new and useful circuits. I am one of interesting in your website. This work […]

Filed Under: Grid and 3-Phase Tagged With: Distribution, Emergency, Generator, Power

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