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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....(electronic circuit added 10/05)
3.3V Lithium Cell Supply Requires One Inductor - 08/05/99 - EDN-Design Ideas:
Because of growing popularity of lithium-ion (Li-ion)batteries and 3.3V
power supplies, portable-equipment designers must often create a 3.3V supply that
a single Li-ion cell can power. fact that.....(design idea added 8/05)
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....(electronic circuit added 10/05)
Add charging status to simple lithium ion charger - 10/02/08 EDN-Design Ideas: ,
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 added 08/09)
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 Notes This 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)
