基于BQ24610的智能锂电池充电系统设计

The Intelligent lithium Battery Charge System Design Based on BQ24610

BQ24610是TI公司推出的一款比较先进的,面向5V至28V电压输入的锂离子电池供电应用开关模式独立电池充电器IC。基于便携式分子筛制氧机的电源管理的设计需求,经过对一系列芯片原理、性能、参数设置的分析讨论,最后我们选用BQ24610芯片作为该电源管理部分的主控制芯片,结合部分外围电路,实现该设计的电源的自动选择、内部回路补偿、内部软启动、动态电源管理(DPM)、精确的充电电流与电压调节、预充电、充电终止、适配器电流调节以及充电状态监控等功能。最后把该设计制成实验板,经过反复调试,测试结果实现了预期性能指标。

BQ24610 is a more advanced separate battery charger IC switch mode of lithium ion battery power supply application to 28 v to 5 v input voltage by TI company.Based on molecular sieve oxygen concentrator portable powect management design requirements, through＇s series of chip principles, performance, analysis and discussion of parameter settings,and finally we use BQ24610 power management chip as part of the main contxol chip, combined with some peripheral circuit to achieve the automatic selection of power supply design, the internal loop compensation, internal soft-start, dynamic power management（DPM）, the precise charge current and voltage regulation, pre-charge, charge termination, adapter current regulation and charge status monitoring. Finally the design is made ofexperimental board, after repeated testing, the test results to achieve the desired performance.