Unclassified
Battery Charger Circuits, page 3
Battery Charges
Alkaline
Lead Acid
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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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Broken Charger-Connection Alert - Detects if a device is not
properly connected to its supply. Suitable for battery chargers,
portable appliance supplies etc. (added 3/050 |
Buck converter charger also provides system power - 05/22/97
EDN-Design Ideas Switching Regulator provides charge
voltage setpoint with Current regulation, and second Switching
Regulator provides5V System Power -Many systems require long-time
operation during periods of power loss. Often, a gel or wet-cell
lead-acid battery is best choice because of high capacity and
relatively low cost. The battery charges.... [Design Idea by Robert
Hanrahan, National Semiconductor, Woodcliff Lake, NJ] |
Build a Simple Rechargeable CMOS Battery - Occasionally we
come across a computer motherboard that seems to eat those CR2032
batteries every 4 to 5 months. This is particularly frustrating
because the computer works perfectly once booted but all the important
BIOS settings are lost when the CR2032 battery fails. This is
very irritating if the affected computer will not boot up with the
default BIOS settings. I recently had a computer motherboard with this
same irritating phenomenon. A test revealed that the current drain...
[Radio Amateur Society of Norwich By N1HFX] |
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Build Your Own Solar Battery Charger - For this project I used 12 cells
but you really only need 6. So if you are on a budget use 6 but if you want a fast
charger use 12. Next lay out all your cells on your window to make sure everything
is going to fit. I used the "deeper" side of the window so that there would be
more room... |
Candle Power - A single lit candle in conjunction with an inexpensive
thermopile voltage generator provides enough power to charge a small battery when
used with a small low voltage DC to DC converter. Posted …. [Hobby Corner Circuit
by Dave Johnson] |
Do It Yourself Portable Cell Phone Charger - It seems that as cell
phones become more sophisticated, their operating times become shorter and
shorter. If you are on the go all the time and have difficultly finding AC
or DC outlets to charge your phone, you might consider this simple scheme....
[Designed by David A. Johnson] |
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Battery
Charges
Alkaline
Lead Acid
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Nickel |
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