AN2389 Datasheet, PDF (13/16 Pages) STMicroelectronics – An MCU-based low cost non-inverting buck-boost converter for battery chargers

AN2389
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Conclusion
Conclusion
This application note describes a simple but very useful technique for implementing a
microcontroller controlled low cost non-inverting buck-boost converter. This converter can
be used as a buck converter or as a boost converter or as a buck-boost converter. The
example shows the application of this converter in a battery charger. However it can also be
used in other portable applications or any application getting its power from a rechargeable
battery. Or you could use this technique to make a USB charger to charge Li-ion batteries or
3 or more NiMH Cells in series.
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