收录:
摘要:
In order to solve the problem of size and power consumption of wired winding or wireless built-in power supply devices in optogenetic experiments, an implantable wireless powered optoelectronic integrated chip, with a RF-DC rectifier and a GaN-LED optrode, has been designed. The rectifier is realized with the integrated NMOS and capacitor based on SMIC 0.18um CMOS technology. The collected RF signal is converted to a stable and high-amplitude DC signal by quadruple voltage rectification, and then supplied to the GaN-LED optrode as its driver. Therefore, the proposed implantable wirelessly powered optoelectronic integrated chip does not require external wiring or built-in battery, which can effectively reduce the size and power consumption. The results from the post-simulation shows that when the antenna collects 5dBm RF signal of 1.5GHz, the RF-DC rectifier provides about 3.4V DC stable signal with about 20us delay and can make the GaN-LED optrode working normally. The PVT and Monte Carlo simulation show the circuit stability under process and temperature deviations, which can meet the requirements of optrode load. © 2023 IEEE.
关键词:
通讯作者信息:
电子邮件地址:
来源 :
年份: 2023
语种: 英文
归属院系: