E类放大电路的并联谐振电容分析  

Parallel Resonant Capacitor Analysis of the Class E Power Amplifier

作　　者：丘小辉 卢文成[1] 毛行奎[1] 

机构地区：[1]福州大学电气工程与自动化学院,福州350108

出　　处：《电气技术》2015年第6期52-55,78,共5页Electrical Engineering

摘　　要：E类放大电路结构简单,因此广泛应用于逆变器、DC-DC变换器以及感应加热电源等一些高功率、高频率的电路中。推导和仿真过程中发现并联谐振电容存在值域,超出这值域电路均不能实现ZVS(零电压开通)。本文基于E类放大电路的理论分析,得到各参数之间的关系,从而计算出待求解的参数。通过saber仿真,分析了不同并联谐振电容对电路的影响,仿真参数和理论值的一致性良好。最后经仿真和实验验证了最大谐振电容下得到的参数,也为E类放大电路的参数设计提供参考。The class E power amplifier has the advantage of simple structure, so it is widely applied to the inverter, DC-DCconverter and induction heating power and some other high power, high frequency circuit. The derivation and simulation process found parallel resonant capacitor existence range, beyond this range circuit cannot achieve the ZVS （zero voltage switching）. This paper is based on theoretical analysis of the class E power amplifier, which gets the relationship of the whole parameters, then we can calculate the under solved parameters. It is analyse the influence of different parallel resonant capacitor on the circuit via saber simulation, also the simulation parameters and the theory have good consistency. Finally the simulation and experiment verify the parameters obtained under maximum resonant capacitor, which provides reference for the parameter design of class E power amplifier.

关 键 词：E类放大电路 ZVS 并联谐振电容 参数设计 

分 类 号：TN722.75[电子电信—电路与系统]