Project Details
Abstract
An on-chip Lithium battery charging system with detailed schematics and
preliminary simulation results is proposed to be integrated with an
environmentally powered sensor readout system. Instead of the conventional
analog-to-digital conversion and digital control, the proposed system utilizes a
fully analog topology in order to minimize the complexity in terms of the
energy efficiency. Transistors working in sub-threshold reduces unnecessary
power consumption and is adopted in this battery charging system. This
on-chip charging system includes amplifier, over-discharged detector, current
driver, and bandgap reference. With it, the environmentally powered sensor
node will be more immune to the environmental instability and show more
practiability in the future.
Project IDs
Project ID:PB10207-1814
External Project ID:NSC102-2221-E182-025
External Project ID:NSC102-2221-E182-025
| Status | Finished |
|---|---|
| Effective start/end date | 01/08/13 → 31/07/14 |
Keywords
- energy harvester
- green energy
- CMOS IC
- battery charger.
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