Abstract
In this paper, a fast li-ion battery charger microcontroller (MCU) based on configurable pulse width modulation (PWM) controller by tracking the polarization curve of battery cells is proposed in order to inject the maximum charge-current without battery degradation and its fully customdesigned MCU is implemented as a system-on-chip (SoC) using 0.18 um Embedded Flash CMOS process. The evaluation results show that a newly designed charger is about 18.6% faster than the conventional constantcurrent (CC) charging method with the temperature rise within a reasonable range. The implemented charger system by tracking the battery cell polarization curve results in charging 4 cells of battery to about 80% of its maximum capacity in less than 56 minutes and 13°C maximum temperature rise without damaging the battery.
Original language | English |
---|---|
Article number | 20160131 |
Journal | IEICE Electronics Express |
Volume | 13 |
Issue number | 8 |
DOIs | |
State | Published - 25 Mar 2016 |
Keywords
- Fast battery charger
- Microcontroller
- Polarization
- Pulse width modulation