基于E类放大器的松耦合电源的分析与设计

杨铁军; 刘平

杨铁军,刘平.基于E类放大器的松耦合电源的分析与设计[J].电测与仪表,2016,53(18):.
Yang Tiejun,Liu Ping.Analysis and design of loosely coupled power supply based on the class E amplifier[J].Electrical Measurement & Instrumentation,2016,53(18):.

基于E类放大器的松耦合电源的分析与设计

Analysis and design of loosely coupled power supply based on the class E amplifier

DOI：

中文关键词: E类功率放大器松耦合电源非接触电能传输去耦等效功率控制

英文关键词:class E power amplifier ,loosely coupled power supply , WPT ,decoupling equivalent ,power control

基金项目:

作者中文名	作者英文名	单位
杨铁军	Yang Tiejun	郑州大学
刘平	Liu Ping	郑州大学

摘要点击次数: 1804

中文摘要:

本文设计的松耦合电源是基于E类功率放大器电路改进，并对此电路拓扑进行电路分析，经去耦等效建模，将电路划分为四种工作状态，分别进行时域电路求解并画出理论波形。通过分析电路工作频率随耦合系数、开关导通时间改变的关系，以及输出功率与开关导通时间的关系，提出一种电流过零导通开关、并以电流平均值控制开关导通时间的功率控制策略，实现了功率输出的稳定性，并进行了实验验证。

英文摘要:

The design of the loosely coupled power supply of this paper is based on class E power amplifier circuit. We analyze this modified circuit by cancelling mutual inductance and solve it in time-domain by dividing four working states. By analyzing the relationship that the circuit frequency changes with the coupling coefficient and switch-on time of the MOSFET, as well as analyzing the relationship between output power and switch-on time of the MOSFET, we propose a kind of power control strategy—switch on the MOSFET when the current is zero-crossing and control the switch-on time by the average current. This strategy can stabilize the power output, and experimental verification is conducted in the last.

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