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Nickel Battery Charger Circuits

Nickel Battery Charger Circuits:   #'S - B      C - N      O - Z

Battery Charges      Alkaline       Lead Acid        Lithium      Nickel

 

Last Updated: October 24, 2017 02:54 PM

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Optimizing High-Frequency Battery Charger Performance for Worldwide Applications -  07/06/00 EDN-Design Ideas Providing Power for electric vehicles for worldwide use requires knowledge of energy conserving and high efficiency technologies __ Circuit Design by Anuradha Rao and Jon Marshall, Curtis Instruments Inc

PIC NiCad Battery Charger -  This cheap and easy to build NiCd/NiMH
Battery Charger is suitable for automatically charging a wide range of batteries for many applications.  Proper chargers are usually expensive and cheap chargers supplied with the original equipment often incorrectly charge the cells and dramatically shorten their life __ Designed by Peter Hayles

Sanyo's USB Powered NiMH
Charger
-  Late in 2006, I found out about Sanyo's new Eneloop Nickel Metal Hydride (NiMH
) rechargeable batteries, available in AA and AAA cell sizes.  Unlike regular NiMH
offerings from other vendors (e.  g.  Duracell, Energizer, Gold Peak) , Sanyo claimed the following benefits for their Eneloops __ Designed by Stefan Vorketter

Solar AA Battery Charger -  This almost trivial circuit may be used to charge a pair of AA or AAA sized cells insun __ Designed by G. Forrest Cook

Solar Cell NiCad Charger -  Schematic & notes only, there is not a circuit description. __ Designed by Tony van Roon  VA3AVR

Standalone Linear NiMH
/NiCd
-  This charger requires no microcontroller or firmware

Switcher IC hikes Battery Charger's Efficiency -  06/23/94 EDN-Design Ideas The adjustable switching-regulator LM2575T-ADJ, IC1, in Fig 1 replaces a power-wasting pnp transistor in the data-book design for the NiCd battery charger IC2, a MAX713.   (Its sister device, the MAX712, handles NiMH
cells.   ]IC2 "fast-charges" cells by monitoring the cell's voltage and charging current __ Circuit Design by Huw Jones, Gyrus Medical Ltd, Cardiff, Wales, UK

Switching regulator charges NiMH
batteries
-  12/21/00 EDN-Design Ideas Many NiMH
(nickel-metal-hydride) fast chargers use linear regulators, such as the LM317, in a current-source configuration with a charge-monitor IC.  This arrangement dissipates much heat and requires considerable heat sinking, ad __ Circuit Design by Jason Hansen and Jim Hill, On Semiconductor, Phoenix, AZ

Temperature Controlled NiCad Charger -  This circuit is for a temperature controlled constant current battery charger.  It works with NICD, NiMH
, and other rechargeable cells.  The circuit works on the principle that most rechargeable batteries show an increase in temperature when the cells becomes fully charged.  Overcharging is one of the main causes of short cell life, hot cells pop their internal seals and vent out electrolyte.  As cells dry out, they lose capacity.  This circuit can quickly charge a rechargeable battery pack without any negative effects.  This circuit uses a 22VDC power supply, my version 2 circuit will run from a 12VDC supply such as a solar-powered or automobile power system. __ Designed by G. Forrest Cook

Thermal Peak Detection NiCd Charger -  The electric model aircraft and car industries have produced a bewildering array of field chargers for NiCd motor battery packs.  These range from simple 6 or 7 cell chargers consisting of a resistor and mechanical timer, to more complex chargers with peak detection, cycling, and the ability to handle 36 cell packs __ Designed by Stefan Vorkoettert

Thermally Controlled NiCad Charger -  A voltage controlled current (maximum of 1A) is used to charge a NiCd battery.  The control voltage is derived from the temperature difference between the battery and the ambient air.  The charge current is reduced as the battery heats up. __ Linear Technology/Analog Devices App Notes, Jun 21st 2011

Universal NiCad/NiMH
Charger
-  Sometimes its more convenient to recharge batteries 'in place' rather than removing them and putting them in an external charger.  This device is built around a PIC12F675 (a dandy little part from Microchip).  The number of cells (1 to 8) is programmed in using the one button __ Designed by Luhan Monat-Mesa Arizona

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


Nickel Battery Charger Circuits:   #'S - B      C - N      O - Z

 


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