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

All Battery Chargers      Alkaline       Lead Acid        Lithium      Nickel

 

Last Updated: October 18, 2017 05:04 AM

Circuits Designed by Dave Johnson, P.E. :

+5v Powered Charge Pump Battery Charger -  The circuit below will trickle charge a four cell pack of AA or AAA NiMH batteries. The circuit draws current from the +5v available a USB connection and pumps about 70ma of current into the battery. This should be enough current to fully charge a pack of. . . Circuit by Dave Johnson P.E.,  02/07/10
 

6v NMH/NiCd Battery Tester -  I designed this circuit to test rechargeable six volt battery packs under constant current conditions. As designed, the circuit applies a 10 Amp load to the battery pack. A heat sink must be used on the main power transistor. . . Circuit by Dave Johnson P.E.,  12/12/04

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

+5v Powered Charge Pump Battery Charger -  The circuit below will trickle charge a four cell pack of AA or AAA NiMH batteries.  The circuit draws current from the +5v available a USB connection and pumps about 70ma of current into the battery.  This should be enough current to fully charge a pack of. . . Circuit by Dave Johnson P.E.-February, 2010

4-Cell Ni-Cad Regulator/Charger for Notebook Computers -  DN54 Design Notes __ Linear Technology/Analog Devices

6v NMH/NiCd Battery Tester -  I designed this circuit to test rechargeable six volt battery packs under constant current conditions.  As designed, the circuit applies a 10 amp load to the battery pack.  A heat sink must be used on the main power transistor. . . Circuit by Dave Johnson P.E.-December, 2004

9-V Nicad Charger -  Circuit Only __ Designed by Jan Hamer

A Fast Charger for NiMH & NiCad Batteries -  This is a truly versatile charger.  It can charge up to 15 identical NiMH or NiCad cells.  You can build it to suit any size cells or cell capacity and you can set the charge rate.  It can fast charge, trickle charge and has safeguards, including temperature sensing, to prevent overcharging. __ SiliconChip

A Fast Universal Battery Charger: Part 2 -  Second article has all the constuction details.  This unit will solve all your charging problems once and for all. __ SiliconChip

A High Speed NiCd Charger for Electric R/C -  A few years back, I published a design for a Low Cost Thermal Peak Detection Charger.  Since then, I've designed several other chargers, in my ongoing quest to avoid having to spend money.  Of course, in building all these designs, I've probably spent more than a really good commercial charger would have cost me.  But designing and building is half the fun __ Designed by Stefan Vorketter

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

AN37Fast Charge Circuits for NiCad Batteries -  Linear Technology AN37 __ Designed by Jim WilliamsFeb 1st, 1990

Automatic 3-Phase Induction Motor Starter -  Starters for 3-phase squirrel-cage induction motors often use star-to-delta converters.  The stator coils of the motor are connected in star configuration at the time of power-on and switched to delta configuration __ Electronics Projects for You

Automatic 9-Volt NiCad Battery Charger -  BR1 can be a bridge rectifier or four diodes   (10A) with a 100 PIV rating.  A 10, 000uF/50V electrolytic capacitor completes the filtering of the 28.8V.  Yep, C1 is a real clunker.  You can use larger if you like, just watch it when you power up.  Without a 'power-up' delay circuit of sorts it will probably blow-up the 723 if the capacitor   (C1) is too-large. __ Designed by Tony van Roon  VA3AVR

Automatic AA Charger -  Rechargeable batteries are very popular for use in all sorts of devices, especially those requiring a high current.  The most common type of cell is the AA or penlight and although thousands have been sold, there are very few low-cost chargers to keep them in tip-top condition.  Most of them simply charge them at the slow rate and never turn off, you have to remember __ Designed by Collin Mitchell

Battery (NiCad) Rejuvenator -  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

Battery Charger Display Using LT1639 -  The Over-the-Top type of operational amplifier is ideal for use as a current sense for battery charger applications.  The design described here can be used with chargers for rechargeable batteries (Lead/acid or NiCd etc).  The 5 V operating supply for the circuit is derived from the battery on charge.  The circuit uses a sense resistor

Battery Charger Indicates Rate of Charge -  05/25/95 EDN-Design Ideas A single LED indicates wher  battery Chargers s delivering a trickle charge or a fast charge, Circuit designed to charge2-14 cells. __ Circuit Design by Larry Suppan, Maxim Integrated Products, Sunnyvale, CA

Battery Charger Takes on Two Roles -  01/01/98 EDN-Design Ideas The NiCd and NiMH battery charger in Figure 1 applies a battery fast-charge controller IC in a way that not only provIdeas peak-voltage fast-charge termination--as IC was designed to do--but also precisely regulates  charge curre __ Circuit Design by Thomas A Somerville, Motorola SPS, Tempe, AZ

Battery Charger with LM317 -  LM317 regulator is used to regulate the voltage and current for this circuit.  This battery charger should be used only for Ni-Cad cells.  Other type of batteries   (li-ion, NiMh, Lead and Li-ion polymer) needs special care so it cannot be used. __ Designed by Jose Pino

Build a High Speed NiCd Charger for Electric R/C -  A few years back, I published a design for a Low Cost Thermal Peak Detection Charger.  Since then, I've designed several other chargers, in my ongoing quest to avoid having to spend money.  Of course, in building all these designs, I've probably spent more than a really good commercial charger would have cost me.  But designing and building is half the fun __ Designed by Stefan Vorkoetter

Build a USB Powered AA NiMH & NiCd Battery Charger -  Iím always complaining about all the chargers and wall warts I need to carry with me when going on a trip.  This project, which can charge a pair of AA Nickel Metal Hydride   (NiMH) or Nickel Cadmium   (NiCd) cells using a laptopís USB port for power, arose to address part of that problem. __ Contact: Stefan Vorkoetter


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

 


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