摘要
为了满足综合实验教学的要求,使学生了解前沿技术,用基础电路设计了基于脉宽调制(PWM)的数字功率放大实验系统,该系统可实现语音信号的脉宽调制及功率放大。模块化的设计思想使实验原理更清晰,实验现象更直观,易于学生观察分析。该实验系统已成功应用于本科生创新实验。实践表明,该实验系统为学生提供了易于学习训练的实践环境,有助于学生综合运用能力和创新能力的提高。
In order to meet the requirements of comprehensive experimental teaching and make students understand the advanced technology, a digital power amplification experimental system based on pulse width modulation(PWM) is designed with the basic circuit, which can realize pulse width modulation and power amplification of speech signal. The modular design idea makes the experimental principle clearer and the experimental phenomena more intuitive and easier for students to observe and analyze. This experimental system has been successfully applied to undergraduate innovative experiments. Practice shows that this experimental system provides students with a practical environment which is easy to learn and train, and helps them to improve their comprehensive application ability and innovative ability.
作者
李兆玺
黄国勇
高威
陈黎
LI Zhaoxi;HUANG Guoyong;GAO Wei;CHEN Li(Communication Engineering College, Jilin University, Changchun 130021,China;Laboratory and Equipment Management Office, Jilin University, Changchun 130021, China)
出处
《实验技术与管理》
CAS
北大核心
2019年第5期111-114,共4页
Experimental Technology and Management
基金
国家自然科学基金项目(61575078)
吉林大学创新实验技术项目(409020720122)
关键词
脉宽调制
功率放大
模块化设计
实验教学
pulse width modulation
power amplification
modular design
experimental teaching
