USB接口便携式中频电疗仪的设计  

Design of the Portable Intermediate Frequency Electrotherapeutic Apparatus Based on USB Interface

作　　者：李瑞莲[1] 苏建坡[1] 张斌[1] 郑国恒[1] 

机构地区：[1]郑州大学物理工程学院,河南郑州450001

出　　处：《自动化仪表》2016年第5期99-102,共4页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(编号:81171410)

摘　　要：为解决传统治疗仪体积庞大不便随身携带、处方固定易被肌体适应从而降低治疗效果的问题,设计了一款基于USB接口的便携式中频电疗仪。硬件电源采用USB接口供电,功率输出部分采用甲乙类互补对称功率放大电路并结合环形磁心变压器。系统电路包括USB接口电路、电源转换电路、D/A转换电路及功率放大电路。软件部分开发了USB固件程序、USB驱动程序及客户端应用程序。医生可根据患者的治疗反馈信息,重新编写处方或添加最新专家处方,提供远程帮助。该装置体积小,质量轻,轻便易携。The traditional therapeutic apparatus is huge in size and inconvenient to carry, and the fixed prescriptions are easy adapted by organism,which results in reduction of the efficacy of treatment. To solve these problems,the portable intermediate frequency electrotherapeutic apparatus based on USB interface is designed. The power of hardware is supplied by USB interfacing circuit, power conversion circuit, D/A conversion circuit and power amplifier. For the software, the USB firmware, USB driver, and client application are developed. The doctor can rewrite the prescription or add latest expert prescription in accordance with the feedback from patients to provide remote assistance. The sizes of this apparatus are small and the quality is light,which is light to carry.

关 键 词：USB2.0 电疗仪 STM32 集成芯片 功率放大电路 变压器 D/A转换电路 

分 类 号：TH7[机械工程—仪器科学与技术] TP271.5[机械工程—精密仪器及机械]