Abstract
A key feature of future active implants will include wireless transcutaneous energy transfer (TET). A novel closed-loop control scheme is presented here for coupled resonant tank circuits that is capable of providing stable and maximally efficient power transfer under various load and disturbance conditions as well as for varying implants. The control algorithm consists of four cascaded control loops using capacitance, frequency, and voltage as the primary control variables. The innermost, D, control loop uses the primary side voltage to control the secondary side current. The C-loop uses the excitation frequency to set the optimal working point for the TET system and the secondary side tank behavior. The secondary side tank may either act as voltage or current source dependent upon the frequency setting of the primary side. The TETs transfer function is shaped by setting the primary capacitance in the B-control loop, determining the performance and transmission efficiency. The exact positioning of primary and secondary coils is determined by an online measurement of the mutual inductance M. In this paper, the D-control loop has been both simulated and realized, for the A-C loops a proof of concept is shown.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Journal of Emerging and Selected Topics in Power Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
