⚡ 本页包含 AI 生成的分析内容，仅供参考
提出一种时序控制的AC-DC转换器，用于生物医学植入物的无线供电，通过时序控制优化整流过程，解决传统线性稳压器效率低的问题，实现高效电压转换。
The magnetic source is inductively coupled to a coil inside the implant to induce an AC voltage, which is then further rectified to a DC voltage [1]. In general, higher supply voltages are often required for analog circuits, such as stimulation circuits in neuroprosthetic applications [2, 3], and lower supply voltages are usually needed for the digital blocks [4]. Hence, the rectified DC voltage is typically kept at a higher value for the analog circuits. A linear regulator is then used to convert the rectified DC voltage to a lower supply voltage for the digital circuits, which typically have power dissipation in the range of 2 – 5mW for neuroprosthetic applications [3]. However, this approach is not very power efficient and a more efficient approach is desired due to the limited power received from the weak magnetic coupling [5]. Buck converters [6, 7] and switched-capacitor (SC) converters have higher power efficiency, especially for high load conditions.
Alfred Mann Foundation, Santa Clarita, CA, Many biomedical implants are powered from an external magnetic source [1, 2].