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Unclassified
Battery Charger Circuits, page 4
Battery Charges
Alkaline
Lead Acid
Lithium
Nickel
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Updated on:
Thursday, November 30, 2017 01:57 PM |
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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists,
students & inventors:
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Enhanced battery "gas gauge"
keeps its data through glitches - 20-Jan-05 Issue of EDN
Texas Instruments' BQ2010 battery-"gas-gauge" IC offers a convenient
method for recording available charge stored in a nickel-cadmium or
nickel-metal-hydride battery. However, even though plenty of charge
remains available, under certain circumstances, transient-current spikes
can fool the BQ2010 into registering a discharged battery.... [Design Idea
by Herbert Seidenberg, Costa Mesa, CA] |
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Experimental Alternator Controller - Scroll down to find this
circuit. Here is an experimental (and simple!) regulator for
alternator chargers. (schematic added 05/05/05) |
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Intelligent NiCd/NiMH Charger/Cycler with 128x64 Graphical LCD -
The accu cycler project presented here is an excellent solution for
charging and discharging NiCd and NiMH accumulators for R/C modelers and
others who make use of these accumulator types. With its performance it is
very close to the many of the commercial products available on the market.
….(design added 11/08) |
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iPOD-MP3 Player Charger - Portable iPod charger that you can use while
away from your computer. The circuit is based around an MC34063 switchmode
regulator. This has high efficiency so that there is very little heat
produced inside the box, even when delivering its maximum output current. The
circuit is more complicated than if we used a 7805 3-terminal regulator but since
the input voltage could be 15V DC or more, the voltage dissipation in such a
regulator could be 5W or more at 500mA. and 5W is far too much for a 7805, even
with quite a large heatsink. ….(design added 11/08) |
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L200 charger circuit - ….must register on this site... [Published in
Elecktor July/August 2010] |
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Li-ion Battery Charger - This is a charger for lithium ion batteries
which takes its power from the USB port of a computer. It uses the MCP73861 or
MCP73863 Li-ion battery charger chip manufactured by Microchip. Microchip MCP73861
or MCP73863 are advanced, fully-integrated, single-cell Li-Ion/Li-Polymer
charge-management devices allow these peripherals to utilize the full power of the
USB port. ….(design added 11/08) |
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Li-Po Charger & Balancer - This is a Li-Po charger and balancer project
for R/C hobby.The charger circuit is based on the circuit of Electron head and all
folks in the DIY electronics topic on the rcgroups.com. ….(design added 11/08)
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Low-battery-voltage cutoff consumes just 1 mA - 9/11/98 EDN-Design Ideas
A low-battery voltage-cutoff circuit prevents overdischarge of a rechargeable
battery. An obvious requirement of this circuit is extremely low power
consumption. Figure 1a's simple circuit has a measured current consumption of
approximately 1.2 mA and uses only two components to perform the low-battery
cutoff function for a four-NiCd battery....File has several circuits, please
scroll to find this one.... [Design Idea by Yongping Xia, Teldata Inc, Los
Angeles, CA] |
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Battery
Charges
Alkaline
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