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2 Cell Lithium Ion Battery Charger - This circuit was build to
charge a couple series Lithium cells (3.6 volts each, 1 Amp Hour
capacity) installed in a portable transistor radio. The charger
operates by supplying a short current pulse through a series
resistor and then monitoring the battery voltage to determine if
another pulse is required. The current can be adjusted by changing
the series resistor or adjusting the input voltage.... [Designed by
Bill Bowden]
Add charging status to simple lithium-ion charger - 2-Oct-08
Issue of EDN By adding a few simple components to a single-cell
Li-ion charger IC, you can get LEDs that indicate charging and
charge completed.... [Design Idea by Peter T Miller, Applied
Inspirations, Bethlehem, CT]
AN26 Fast Charging Batteries with Zetex High Current PNP Transistors & Benchmarq
Controller ICs - Zetec Semiconductors Applications Notes High current,
fast switching PNP transistors are capable of replacing large packaged P-Channel
MOSFETs, when attention is paid to base drive requirements. This enables space
and performance efficient designs at much reduced cost. (app note added 6/06)
AN40 Lithium Ion Battery Charging using Bipolar Transistors - Zetec
Semiconductors Applications NotesThis application note explores different
types of charge techniques and associated discrete pass elements, highlighting
dominant discrete parameters and selection criteria for each charging
technique. (app note added 2/06)
