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Battery Charger
Circuits
Battery Charges
Alkaline
Lead Acid
Lithium
Nickel
Last
Updated on:
Sunday, June 28, 2009 06:17 AM |
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Circuits Designed by Dave Johnson, P.E. : |
- 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.
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Solar Powered Lithium Ion Battery Charger
NEW
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 and a 6 volt solar
panel....
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- Two 12v Battery
Isolator: Linear Technology has
just announced a neat little chip (LTC4412). It has been designed to be used in
conjunction with an external P-channel power FET, to form an ideal diode function
with a very low 0.05v voltage drop. The chip monitors the voltage on either side of
the FET. As long as the voltage on the drain side is greater than the source side,
the FET is turned on....
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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists,
students & inventors:
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Battery Charges Alkaline
Lead Acid
Lithium
Nickel |