60W低频功率放大器电路的设计  

Design of 60W Low Frequency Power Amplifier Circuit

作　　者：居宇鸿 JU Yuhong(Jiangsu United Vocational and Technical College Suzhou Industrial Park Branch,Jiangsu 215128,China)

机构地区：[1]江苏联合职业技术学院苏州工业园区分院,江苏215128

出　　处：《电子技术（上海）》2022年第10期7-9,共3页Electronic Technology

摘　　要：阐述60W功率放大器,由集成功率放大器LM391和晶体管推挽功率输出级组成,电路简捷、性能优良,特别适合用作便携式组合音响的功率放大器。该电路工作电压范围可为±10V~±50V,具有过载温度保护和输出随时关断(Shutdown)控制功能。This paper describes a 60W power amplifier,which is composed of a lumped success rate amplifier LM391 and a transistor push-pull power output stage.The circuit is simple and the performance is excellent,and it is especially suitable for use as a power amplifier for portable combination audio.The working voltage range of this circuit can be ±10V~±50V,and it has the functions of overload temperature protection and output shutdown control at any time.

关 键 词：功率放大 LM391 过热保护 

分 类 号：TN722.75[电子电信—电路与系统]