@inproceedings{1ae284fdf1c449899e2ba11df170a96e,
title = "Hybrid PFM-PWM Digital Controller for Miniaturized High-Frequency LLC Converters Integrated in Advanced IoT Devices",
abstract = "This paper introduces a highly-miniaturized soft-switched power-supply suitable for IoT applications. It incorporates a half-bridge LLC resonant converter operating in the MHz range and a new hybrid PFM-PWM digital controller that facilitates tight output voltage regulation carried out through a simple voltage loop controller hardware. The switching frequency and the duty-ratio are adjusted simultaneously and with full continuity and monotonicity. Governed by two PI compensators to guarantee smooth and fast recovery from load-transient or input voltage aberrations the controller accounts for the non-monotonicity characteristics of asymmetrically driven LLC resonant converters. The operation of the controller is experimentally verified on a 3-7V input to 1.8V output HB-LLC converter, demonstrating tight output voltage regulation capabilities.",
keywords = "LLC, PFM, PWM, digital controller, resonant converter",
author = "Tom Urkin and Peretz, {Mor Mordechai}",
note = "Funding Information: This research was supported by the ISRAEL SCIENCE FOUNDATION grant number 2186/19. Publisher Copyright: {\textcopyright} 2022 IEEE.; 23rd IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2022 ; Conference date: 20-06-2022 Through 23-06-2022",
year = "2022",
month = jan,
day = "1",
doi = "10.1109/COMPEL53829.2022.9830015",
language = "English",
series = "Proceedings of the IEEE Workshop on Computers in Power Electronics, COMPEL",
publisher = "Institute of Electrical and Electronics Engineers",
booktitle = "2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics, COMPEL 2022",
address = "United States",
}