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3 Simple Solar Panel/Mains Changeover Circuits

Last Updated on January 2, 2024 by Swagatam 40 Comments

solarpanelmainsAVCchangeoverrelaycircuit

The discussed automatic change over relay circuit was requested by Mr.Karimulla Baig. The circuit normally charges the connected battery at constant current through the power received from the solar panel, and reverts to DC power from an AC/DC adapter in the absence of solar energy (during night time). Let’s the read the request in more details: Technical […]

Filed Under: Solar Controller Circuits Tagged With: Changeover, Circuits, Mains, Panel, Simple, Solar

5 Simple Alarm Circuits for Protecting your Home/Office from Theft

Last Updated on January 2, 2024 by Swagatam 104 Comments

burglaralarmusingsimpleconductorsensorcircuit

The following article discusses a few very simple intrusion detector circuits, or ant-theft alarms. The presented designs are easy to build yet extremely effective with the functions. How the Circuits Works An intruder alarm basically consists of a sensor and a trigger stages, which work together to produce the required detection. The sensor detects the presence […]

Filed Under: Security and Alarm Tagged With: Alarm, Circuits, Home, Office, Protecting, Simple

3 Simple DC UPS Circuits for Modem/Router

Last Updated on January 2, 2024 by Swagatam 272 Comments

dc modem ups circuit

In the following article I have explained 3 useful DC to DC uninterruptible power supply circuits or DC UPS circuits for low DC to DC uninterruptible power applications The first idea below presents a DC UPS circuit can be used for providing back up power to modems or routers during mains failures, so that the  broadband/WiFi […]

Filed Under: Inverter Circuits Tagged With: Circuits, DC, Modem, Router, Simple, UPS

Simple Pneumatic Timer Circuit

Last Updated on January 2, 2024 by Swagatam 20 Comments

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In this article I have explained a simple two step IC 555 timer circuit which can be used for sequentially operating any specified industrial mechanism system, in this application it’s used for operating a pressurized pneumatic ball throwing arm. The idea was requested by Mr. Ray Strong. Technical Specifications So glad I found this site, […]

Filed Under: Timer and Delay Relay Tagged With: Pneumatic, Simple, Timer

How to make simple a LI-FI (Light Fidelity) Circuit

Last Updated on January 2, 2024 by Swagatam 172 Comments

LI-FI is buzzing around the Internet since past few years; recently LI-FI is gained more popularity around the internet and developers. LI-FI stands for Light Fidelity which was coined by Harald Hass. Circuit Objective The objective of LI-FI is transfer data through visible light. Since the bandwidth of visible light is 10,000 times more than […]

Filed Under: Lamps and Lights Tagged With: FI, Fidelity, LI, Light, Simple

Simple Car Burglar Alarm Circuit

Last Updated on January 2, 2024 by Swagatam 6 Comments

Learn how to build a simple car burglar alarm circuit right in your home. The circuit is built around a few trivial components and yet proves to be totally fool proof with the security of car accessory to which it has been integrated. You certainly won’t like waking up just to see your car audio […]

Filed Under: Automobile Electronics, Security and Alarm Tagged With: Alarm, Burglar, Simple

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