恒流恒压Buck电路在便携式医疗制氧机中的应用  

Application of Constant-Current and Constant-Voltage Buck Circuit in Portable Medical Oxygen Generator

作　　者：刘景超 唐建业 唐肖军 沈凯 王孝红 叶宝林 张洁 LIU Jingchao;TANG Jianye;TANG Xiaojun;SHEN Kai;WANG Xiaohong;YE Baolin;ZHANG Jie(Zhejiang JEC Electronic Co.,Ltd.,Jiaxing,Zhejiang 314000,China;School of Information Science and Engineering,Jiaxing University,Jiaxing,Zhejiang 314000,China;Jiaxing University School of Medicine,Jiaxing,Zhejiang 314000,China)

机构地区：[1]浙江嘉科电子有限公司,浙江嘉兴314000 [2]嘉兴大学信息科学与工程学院,浙江嘉兴314000 [3]嘉兴大学医学院,浙江嘉兴314000

出　　处：《自动化应用》2024年第5期133-135,共3页Automation Application

基　　金：国家自然科学基金(61603154);浙江省自然科学基金资助项目(LY19F030014);工业控制技术国家重点实验室开放课题(ICT2022B52)。

摘　　要：针对便携式医疗制氧机中电源需兼顾充电和供电的需求,设计一种恒流恒压Buck电路。该电路具有电压电流双环,能实现为锂电池充电和为感性负载供电的无缝切换,并满足短时过流不保护的需求。电路使用带有外部信号跟踪引脚TRK的集成驱动芯片,与传统的单片机控制相比,其具有免嵌入式编程、功率密度高、便于借鉴使用的优点。A constant-current and constant-voltage Buck circuit is designed to meet the needs of both charging and power supply in portable medical oxygen generators.This circuit has a voltage and current dual-loop,achieving seamless switching between charging lithium batteries and supplying power to inductive loads,and meeting the demand for short-term overcurrent protection.The circuit uses an integrated driver chip with an external signal tracking pin TRK.Compared with traditional singlechip control,it has the advantages of no embedded programming,high power density,and easy reference and use.

关 键 词：BUCK电路 恒压恒流 感性负载 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置] TH789[自动化与计算机技术—控制科学与工程]