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Smart Emergency Lamp Circuit with Maximum Features

In this post we learn about a simple yet sophisticated automatic emergency light circuit which can be considered “smart” due to the involved advanced features and an inexpensive design. The idea was requested by Mr. Lokesh. Technical Specifications Hi sir, I am so glad to see your interest towards electronic circuits. So eagerly waiting for … Read moreSmart Emergency Lamp Circuit with Maximum Features

Li-ion Emergency Light Circuit

The post presents a simple Li-ion emergency light circuit with over charge and low battery cut off features. The Circuit was requested by Mr. Saeed Abu and Y0f4N. Technical Requirement Bro thanks for ur reply. Actually im Pharmacist(M.Pharm) & Electronics is my hobby. So i go through ur mentioned link & i dont understand ur … Read moreLi-ion Emergency Light Circuit

IC 555 Automatic Emergency Light Circuit

The discussed 2 simple IC 555 based emergency lamp system employs just a single IC 555 and yet is able to switch more than 20 LEDs directly, it will illuminate the LEDs only during the absence of mains power and ambient light. 1) Using IC 555 as a Comparator The proposed circuit is not only … Read moreIC 555 Automatic Emergency Light Circuit

Solving LDR Controlled LED Emergency Lamp Problem

The following post discusses the troubleshooting of an automatic LDR controlled emergency lamp circuit which was requested to me via email by one of the keen followers of this blog. Let’s learn about the issue and its solution. Technical Specifications Dear Sir, I am following you on your website and I thank you for your valuable contributions … Read moreSolving LDR Controlled LED Emergency Lamp Problem

Cell Phone Emergency Charger Pack using Ni-Cd Batteries

In this post  we discuss the construction of a simple emergency charger pack using Nicket Cadmium (Ni-Cd) batteries for your cellphones and smart phones for emergency charging of your cellphone, so that next time you are never stuck on a highway with a full discharged dead cellphone battery. Circuit Concept It often happens, our cell … Read moreCell Phone Emergency Charger Pack using Ni-Cd Batteries

Battery Over Charge Protected Emergency Lamp Circuit

The following LED emergency light with battery over charge protection feature circuit was designed by me in response to the request sent by PP. Main Features The article describes an LED emergency light circuit with advanced features such as, over charge battery cut off, day time auto-disable, and need less to say that the circuit … Read moreBattery Over Charge Protected Emergency Lamp Circuit

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