LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Power Feedback Control Unit for Closed-Loop Wirelessly Powered Biomedical Implants

Photo from wikipedia

Effective power management is crucial in designing wirelessly powered implants that have a long operational lifetime. It ensures that the received power is optimized for efficient operation and prevents damage… Click to show full abstract

Effective power management is crucial in designing wirelessly powered implants that have a long operational lifetime. It ensures that the received power is optimized for efficient operation and prevents damage caused by excessive or insufficient powering. This brief presents a power feedback control unit for wirelessly powered implanted biomedical devices, which includes an implanted voltage level detector and limiter. The feedback control bits can be transmitted through the link to the external unit as uplink data communication, or used to autonomously prevent overvoltage in worst-case scenarios. This design is implemented and fabricated in a 180nm CMOS process, which can be used for the power conversion chain of wirelessly powered biomedical implanted devices. The system consumes 144 $\mu \text{W}$ at a supply voltage of 1.8V and a chip area of 0.02255 mm2.

Keywords: power feedback; power; unit; wirelessly powered; feedback control

Journal Title: IEEE Transactions on Circuits and Systems II: Express Briefs
Year Published: 2023

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.