基于双CPU+PSD的电外科控制器的设计与研究  

Design and research of electrosurgical controller based on dual CPU+PSD

作　　者：包晔峰[1] 张强[1] 蒋永锋[1] 赵虎成[1] 陈俊生[1] 

机构地区：[1]河海大学机电工程学院,常州213022

出　　处：《电子测量技术》2011年第3期1-4,共4页Electronic Measurement Technology

摘　　要：设计了一种基于双CPU+PSD的电外科手术仪控制器。该控制器采用直接数字频率合成技术产生频率和脉宽可调的输出波形;通过共享RAM实现主、从处理器的并行运行;设计了输出电流、电压双反馈电路,根据反馈电流及电压信号,检测功能有效地控制输出能量的大小;利用增量式PID算法实现恒流、恒压及恒功率控制。通过在某高频电刀上的试验表明,系统具有较高的输出精度。Introduces an electrosurgical controller based on dual CPU ＋ PSD.Direct digital frequency synthesis is used to generate output waveform which pulse frequency and width is adjustable.Parallel running of the master and slave CPU implements by shared RAM.Having designed the feedback circuit of current and voltage,the function of detection can control the output power with of the feedback variables.The controller utilizes a incremental PID control algorithm,incorporating with the voltage and current as feedback variables,it can realize constant voltage,constant current and constant power.The result shows that the output of the system is accurate.

关 键 词：双CPU+PSD PID 电外科 控制器 

分 类 号：R616.1[医药卫生—外科学]