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Lithium Battery Charger Circuits
Battery Chargers:  Alkaline       Lead Acid        Lithium      Nickel

Lithium Battery Chargers:  #'s - K        L - M        N - Z

Last Updated: October 24, 2017 02:54 PM

Circuits Designed by Dave Johnson, P.E. :

Power Supply for Digital Panel Meters that is Isolated -  Many inexpensive digital panel meters, such as the one shown below, are designed to operate from a 9v battery.  However, the nature of the panel meter internal design often requires that the DC supply used to power the device be isolated from the ground… . . . Hobby Circuit designed by David A. Johnson P.E., 9/13/08

Solar Powered Lithium Ion Battery Charger -  The circuit below feeds a controlled current and voltage to a 3.6v lithium ion battery. The current is limited to 300ma and the voltage is limited to 4.2 volts. The circuit uses a LTC1734 IC from Linear Technology. No diode is needed between the circuit a… . . . Hobby Circuit designed by David A. Johnson P.E., 5/15/07
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

New Charger Topology Maximizes Battery Charging Speed -  DN194 Design Notes __ Linear Technology/Analog Devices

New ICs Simplify Battery Charging from the USB -  DN320 Design Notes __ Linear Technology/Analog Devices

NiCad Batteries Zap Adapter -  Don't throw away those seemingly un-chargeable, rechargeable batteries; they could very well be brought back to life with the aid of this simple circuit.    (Tony van Roon's Tony van Roon) __ Designed by Tony van Roon  VA3AVR

NiMH
& Li-Ion fast battery chargers & controllers
-  This power supply was designed and delivered in less than 4 weeks for a client that had discovered that his power supply solution would not work in his vehicular test and measurement application.  Leveraging the clients existing parts inventory and parts directly available from local distributors this supply was designed and sent out for fabrication in 7 days, thereby preserving their delivery schedule __ Designed by Steve Hageman

RD68HC908LBC : Li-ION Battery Charger Reference Design -  This reference design describes a Li-ion battery charger for one 3.6V Li-ion battery cell by using the low cost 8-pin MC68HC908QT2 MCU.  This reference demo provides reader a reference on how to implement constant current, constant voltage charging method for Li-ion battery and how to in-circuit-programming M68HC908QT/QY MCU in system __ Designed by Freescale

Shrink Battery-Powered Products with a Combination Battery Charger & DC/DC Converter -  DN1002 Design Notes __ Linear Technology/Analog Devices

Simple Circuit Battery Extends Power over Ethernet Poe Peak Current -  DN361 Design Notes __ Linear Technology/Analog Devices

Simple Circuit Li-ION Charge Termination using the LT1505 -  DN244 Design Notes __ Linear Technology/Analog Devices

Simple Circuit Lithium-Ion/ Lipo Battery Charger -  This is a Lithium-ion charger for lipo batteries.  Circuit schematic shows configuration for charging single 3.7V lipo battery but voltage can be set to charge several batteries in series.  Lipo charger sets a current limit with the LM317, and 1 resistor, and the voltage limit with the TL431, and 2 resistors.1K resistor is needed to let the TL431 decrease the LM317 current, and to provide the necessary current to the TL431.  The optional Schottky diode at the output will prevent current flowing back from battery to the charger circuit when power is disconnected, and reverse biasing of the LM317.  Power supply with more than 3V above output voltage is required. 

Simple Circuit Test Setup Performs Functional Testing Of Linear, Single-Cell Lithium Chargers -  10-May-07 EDN-Design Ideas A handful of off-the-shelf components makes a test setup that allows you to test the operation of a linear single-cell lithium charger __ Circuit Design by Marián Štofka, Slovak University of Technology, Bratislava, Slovakia

Smart Battery Charger Reduces Size -  DN1005 Design Notes __ Linear Technology/Analog Devices

Solar Lithium Ion Battery Charger using LT1130 -  I have been designing a number of solar powered devices lately.  Many of them use just a single 3.6v lithium ion battery.  These batteries like to be charged from a fixed 4.2v source with a charging current limited to about C/8, where C is the milliamp-hour rating of the part. . . Circuit by David A. Johnson P.E.-December, 2012

Solar Powered Lithium Ion Battery Charger -  The circuit below feeds a controlled current and voltage to a 3.6v lithium ion battery.  The current is limited to 300ma and the voltage is limited to 4.2 volts.  The circuit uses a LTC1734 IC from Linear Technology.  No diode is needed between the circuit a . . . Hobby Circuit designed by Dave Johnson P.E.-May, 2007

Test Setup Performs Functional Testing of Linear, Single-Cell Lithium Chargers -  10-May-07 EDN-Design Ideas A handful of off-the-shelf components makes a test setup that allows you to test the operation of a linear single-cell lithium charger __ Circuit Design by Marián Štofka, Slovak University of Technology, Bratislava, Slovakia

Very Low Cost SOT-23 Li-ION Battery Charger Requires Little Area & FeW Components -  DN250 Design Notes __ Linear Technology/Analog Devices

Zap Adapter -  Don't throw away those seemingly un-chargeable, rechargeable batteries; they could very well be brought back to life with the aid of this simple circuit.    (Tony van Roon's Tony van Roon) __ Designed by Tony van Roon  VA3AVR


Lithium Battery Chargers:  #'s - K        L - M        N - Z

 


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