感性负载方波电源功率放大器的分析计算  

The Analysis and Calculation of Square Wave Power Amplifiers with Coil Loading

作　　者：喻莉莉[1] 徐笑庄[1] 吕光[1] 

机构地区：[1]洛阳大学电子信息工程学院,河南洛阳471023

出　　处：《电子科技》2005年第10期39-43,共5页Electronic Science and Technology

摘　　要：方波电源是采用数字技术的脉冲电源,具有相位严格、频率稳定度高,抗干扰能力强等独特的优点。该文以一个实例,对工作在方波信号输入下的功率放大器,带感性负载时的工作特点进行了分析,并且根据分析的结果,推导出了在方波信号输入下,功率放大器带感性负载时的各项性能指标的计算方法。并通过对实际电路的测试,验证了计算方法的可行性,同时还提出了减小感性负载对放大器影响的措施。The square wave source is an impulse source in which digital technique is used. It has the advantages of rigid phase, high frequency stabilization and high antijamming. This paper analyzes, through an example, the operation of power amplifiers with the square wave as input. According to the analysis, this paper deduces the method for calculation of various functional indexes when the square wave is input and the power amplifier has coil loading. By testing the real circuit, the feasibility of the method has been verified and the specific measures to lessen the influence of the coil loading on the amplifier have been put forward.

关 键 词：方波电源 功率放大器 感性负载 

分 类 号：TN722.75[电子电信—电路与系统]