现代电子技术2016，Vol.39Issue(11)：144-148,5.DOI:10.16652/j.issn.1004-373x.2016.11.035
基于STC12C5A60S2的电流型PWM功率放大器设计
Design of current mode PWM power amplifier based on STC12C5A60S2
摘要
Abstract
A current mode PWM power amplifier with single degree of freedom was designed by taking STC12C5A60S2 high performance microcontroller as the control core,which has the advantages of high integration,small size,and low cost. The Hall current sensor is used to convert the current signal into voltage signal. The 10⁃bit 2⁃channel A/D internal SCM is used to sample the control signal and measurement signal respectively. The discrete PI controller can adjust the duty cycle of PWM module with 8⁃bit precision,and control the current ascent rate and descent rate. The three⁃level control strategy is contrasted and simulated by means of Simulink. The test results and simulation data are consistent,which reflects that the current mode power amplifier has high quiescent current accuracy and small ripple,and the dynamic response speed can meet the practical application. The control strategy is effective,and the implementation method is feasible. The system has good stability.关键词
电流型功率放大器/三电平控制/STC12C5A60S2/Simulink仿真Key words
current mode power amplifier/three-level control/STC12C5A60S2/Simulink simulation分类
信息技术与安全科学引用本文复制引用
邹明哲,王军,陆圆圆,黄聪..基于STC12C5A60S2的电流型PWM功率放大器设计[J].现代电子技术,2016,39(11):144-148,5.基金项目
江苏省大学生实践创新训练计划重点项目（201410298028Z）；国家自然科学基金（51275240）；江苏省高校自然科学基金 （）
