新型脉冲充电模拟锂离子电池充电器

Fouad Farah, M. Alaoui, K. Khadiri, H. Qjidaa
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引用次数: 3

摘要

本文介绍了一种新型脉冲充电模拟锂离子电池充电器。本文提出的模拟电池充电器结构简单,成本低,体积小,不需要任何校准,也不需要精确的外部电阻来检测充电结束,是一种非常低成本的解决方案。该充电器采用台积电0.18um CMOS工艺,电源为5V。最大充电电流可达800mA,输出电压≥4.2V。该布局占用1.5 mm2的小有源面积,功耗约837mW,功率效率高达92%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New Analog Li-Ion Battery Charger Using Pulsed Charging Method
This paper presents a new analog Li-Ion battery charger using pulsed charging. Simple structure, low cost and small size, the proposed analog battery charger is a very low cost solution because it doesn't need any calibration and no precise external resistor is needed to end of charge detection. This charger is implemented in TSMC 0.18um CMOS process with a power supply equal to 5V. The maximum charging current reaches 800mA with output voltage over or equal to 4.2V. The layout occupies a small active area of 1.5 mm2, the power dissipation is about 837mW and high-power efficiency of 92%.
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