论文标题
高效高效的单切口调节的谐振无线电源和混合调制
Highly-Efficient Single-Switch-Regulated Resonant Wireless Power Receiver with Hybrid Modulation
论文作者
论文摘要
在本文中，提出了带有混合调制的高效单切口调节的无线功率接收器。为了达到高效率和良好的输出电压调节，相移和脉冲宽度混合调节被同时应用。该拓扑中的软开关操作是通过输入电流和栅极驱动信号之间的逐个周期相移的调整来实现的，也归因于反应性组件，例如串联辅助的二次线圈和活动开关的寄生电容器。软开关操作还导致高效率和低EMI。通过调整开关的占空比，可以达到输出电压的严格调节。分析得出具有混合调制的谐振接收器的稳态和动态模型，以正确设计反馈控制器。为实验验证构建了两层无线电源传输系统的实验设置，包括所提出的接收器的硬件原型。实验结果表明，无论线路和负载变化如何，在接收器中的软开关操作都具有高效率，同时保持了对输出电压的良好调节。
In this paper, a highly-efficient single-switch-regulated resonant wireless power receiver with hybrid modulation is proposed. To achieve both high efficiency and good output voltage regulation, phase shift and pulse width hybrid modulation are simultaneously applied. The soft switching operation in this topology is achieved by the cycle-by-cycle phase shift adjustment between the input current and the gate drive signal and also attributed to the reactive components such as the series-compensated secondary coil and the parasitic capacitor of the active switch . The soft switching operation also leads to high efficiency and low EMI. By adjusting the duty ratio of the switch, tight regulation of the output voltage can be attained. The steady-state and dynamic models of the resonant receiver with hybrid modulation are analytically derived in order to properly design the feedback controller. An experimental setup of a two-coil wireless power transfer system, including the hardware prototype of the proposed receiver, is constructed for experimental verification. The experimental results show the effectiveness of the soft-switching operation in the receiver with high efficiency while maintaining good regulation of the output voltage, regardless of line and load variations.
