Abstract
The postregulation method of an inductive power link consists of adjusting its output voltage directly in the receiver by using a feedback dc-dc converter, thus without having to rely on back telemetry. In postregulated systems, the maximum efficiency point (MEP) of the link can be tracked by adjusting the transmitter voltage amplitude in closed-loop. In this paper, we analyze how the series and parallel receiver compensation affect differently the closed-loop control of the MEP tracking. The theoretical analysis proves that the MEP cannot be achieved with a series compensation but it can be attained with a parallel compensation. Additionally, the theoretical analysis predicts how any more complex resonant structure affects the attainability of the MEP. Finally, the analysis is validated by simulations and measurements. The proof-of-concept system postregulates the output voltage at 5 V and achieves the MEP of 40% in measurements while delivering 50 mW to the load, working at 13.56 MHz with 1-cm-air-gap and a 25mmx25mm receiver.
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 callDisclaimer: 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.
