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

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The post elaborately explains 3 automatic intelligent single chip CC/CV or constant current, constant voltage 3.7V Li-Ion battery charger circuits, using specialized Hi-End 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 … Read more3 Intelligent 3.7V Li-Ion Battery Charger Circuits using Specialized ICs

Multiple Battery Charger Circuit using Dump Capacitor

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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

High Current Wireless Battery Charger Circuit

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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

Battery Charger Circuit using Fixed Resistors

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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 … Read moreBattery Charger Circuit using Fixed Resistors

Opamp Battery Charger Circuit with Auto Cut Off

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The post discusses a two opamp IC 741 and LM358 based auto cut off battery charger circuits which are not only accurate with its features but also allows a hassle free and quick setting up of its high/low cut-off threshold limits. The idea was requested by Mr. Mamdouh. Circuit Objectives and Requirements As soon as … Read moreOpamp Battery Charger Circuit with Auto Cut Off

18V Cordless Drill Battery Charger Circuit

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In this post we learn how to build and use a 18V battery charger circuit for a cordless drill machine. The idea was requested by Mr. Chibuzo. Technical Specifications Here is the issue. I don’t have any cordless drill battery charger at all. But I have variable voltage car battery charger. I did try to … Read more18V Cordless Drill Battery Charger Circuit

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