⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出一种用于无线能量传输的单级双输出稳压整流器,工作在40.68MHz,效率达90%。通过零电压开关(ZVS)和同步脉冲频率调制(PFM)控制,在单级中实现AC-DC转换和双路稳压输出,解决了传统两级方案体积大的问题。
Wireless power transfer (WPT) is a common non-intrusive approach to power implantable biomedical devices. In the WPT system, a tens-of-milliwatt power receiver (RX) should offer a small form factor and is preferred to provide two or more power rails for supporting various functions. Conventionally, the power RX can be realized by a rectifier for the AC-to-DC conversion followed by a single-inductor multiple-output (SIMO) converter for generating different regulated DC voltages. Although rectifiers with a high resonance frequency (fRES) of 40.68MHz were recently presented to reduce the required size of the off-chip RX coil [1], [2], the power receiver form factor and efficiency could suffer considerably due to the SIMO converter. For example, the receiver with a single-inductor dual-output converter [3] involving five off-chip components (1 inductor and 4 capacitors) to produce two outputs is sizable and its peak efficiency is only 80%.
Ziyang Luo, Jin Liu, Hoi Lee
University of Texas at Dallas, Richardson, TX