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Optimal design methodology of closed-loop class E amplifier
Author(s): 
Pages: 40-43,46
Year: Issue:  10
Journal: Electronic Measurement Technology

Keyword:  闭环E类放大器E类放大器高效率功率放大器;
Abstract: 开环E类放大器的设计一般通过理论计算得出电路中各元件的参数,然后固化成硬件电路,一旦电路负载发生变化,E类放大器不再继续工作于最优状态且输出功率不稳定.本文提出了一种基于负载变化的闭环E类放大器的设计方法,当电路负载变化时,不需改变原硬件电路,通过调整电路中晶体管开关激励电压的占空比和频率,使E类放大器继续工作于最优状态,通过调节输入电压使输出功率保持不变.本文最后以输出功率1 W、初始负载电阻5...
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