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3 Best 3.7V Li-Ion Battery Charger Circuits using Specialized Intelligent ICs

The post elaborately explains 3 automatic intelligent single chip CC/CV or constant current, constant voltage 3.7V Li-Ion battery charger circuits, using IC TP4056, IC LP2951, IC LM3622, with battery temperature sensing and termination facility. Design#1 CIRCUIT DESCRIPTION The first design is probably the smartest one, incorporating the IC TP4056 which is a comprehensive constant-current (CC), … Read more3 Best 3.7V Li-Ion Battery Charger Circuits using Specialized Intelligent ICs

Multiple Battery Charger Circuit using Dump Capacitor

In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was requested by Mr. Michael. Circuit Objectives and Requirements My name is Michael and live in Belgium. I found your site thru google during my search … Read moreMultiple Battery Charger Circuit using Dump Capacitor

Timer Based Cell Phone Charger Circuit

A simple cell phone charger with timer circuit is presented in the following article, which could be used for charging a given Mobile phone for a specified predetermined length of time. The idea was requested by Mr. Saad. Circuit Objectives and Requirements Could you design me this charger circuit ? Input 230V 60 Hz, and the … Read moreTimer Based Cell Phone Charger Circuit

High Current Wireless Battery Charger Circuit

In this article we learn regarding how to design and make your own customized high current wireless battery charger circuit using wireless power transfer concept. Introduction In many of my earlier articles I have comprehensively discussed wireless power transfer, in this article we will go a step ahead and try to learn how to design … Read moreHigh Current Wireless Battery Charger Circuit

Universal Battery Charger Circuit with Fixed Resistors

This universal automatic battery charger circuit is extremely versatile with its functioning and can be adapted for all types of battery charging and even for solar charge controller application. Universal Battery Charger Main Features A universal battery charger circuit must have the following main features included in it:1) Automatic battery full charge cut-off, and automatic … Read moreUniversal Battery Charger Circuit with Fixed Resistors

Arduino Battery Level Indicator Circuit

In this post, we are going to construct an Arduino based  battery level indicator, where a series of 6 LEDs show the level of the battery. If you are interested in monitoring and maintenance of your 12V battery, this circuit might become handy. By: Arduino Guru Why Battery Level Monitoring is Crucial All batteries have … Read moreArduino Battery Level Indicator Circuit

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