This article explains an interesting topic, how to convert your computer UPS into home UPS. If you own a desktop computer, you may have a UPS that can power your […]
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4 Simple Power Bank Circuits Explained
The article presents a 4 assorted power bank circuits using 1.5V cell and 3.7V Li-ion cell which can be built by any individual for their personal emergency cellphone charging functionality. […]
Emergency Incubator Heater Circuit with Battery Charger
The post discusses a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. […]
Rechargeable LED Lantern Circuit Using Dynamo
In this post we study a simple rechargeable LED lantern circuit which features battery charging option from a dynamo as well as from a mains 220V source. The idea was […]
Designing a Customized Battery Charger Circuit
I have designed and published a variety of battery charger circuits in this website, however the readers often get confused while selecting the right battery charger circuit for their individual […]
Adjustable 3V, 5V, 6V, 9V,12V,15V Dual Power Supply Circuit
The purpose of this paper is to detail a variable dual lab power supply circuit which has an adjustable range from 3V, 5V, 6V, 9V, 12V, and 15V or even […]