Concept

Demodulation

Related publications (9)

A Synchronous Rectification Method for Optimal Switching of GaN-based Inductive Power Transfer Systems

This work presents a synchronous rectification method for 6.78 MHz inductive power transfer systems, in which a phase-locked loop is employed to compensate for all circuit delays, enabling zero-current switching. The adaptive dead-time capability of the method allows zero-voltage switching for a wide load range, reducing the switching losses. The proposed method is implemented on a GaN-based half-bridge class-DE rectifier using discrete and off-the-shelf components only

IEEE2026

Design, Installation, and First Results from the Ion Cyclotron Emission Diagnostic on TCV

Basil Duval

TCV is a medium sized tokamak equipped with a large suite of plasma diagnostics, a versatile array of poloidal shaping coils, an electron cyclotron heating system, and a two source neutral beam injection (NBI) system. The NBI system is capable of a simultaneous injection of energetic neutrals in the co-and counter-current directions. The resulting fast ion (FI) populations are used to study a multitude of FI-driven instabilities. While plasma instabilities in the below 1 MHz frequency range can be observed

2026

High-efficiency multi-scale holographic volumetric 3D printing with a phase light modulator

Light-based 3D printing with photocurable resins enables the rapid fabrication of complex structures with high resolution and fidelity. Tomographic Volumetric Additive Manufacturing (TVAM) employs a digital micromirror device (DMD) to project amplitude light patterns into rotating resin volumes, producing 3D geometries through photopolymerization. Typically, the light projection efficiency in such binary amplitude modulator-based systems is below a few percent. Recent advancements introduced phase encoding

Springer Science and Business Media LLC2026

Performance Comparison of Analog and Digital Implementations of a Synchronous Rectification Method for 6.78 MHz Applications

Synchronous rectification is a well-established technique at low frequencies for reducing the conduction losses of conventional diode-based rectifiers. However, as switching frequencies increase, several challenges arise, particularly related to propagation delays and timing accuracy, which directly contribute to increased switching losses. Furthermore, in class-DE rectifiers, adaptive dead-time is essential to ensure zero-voltage switching across the load range. A novel synchronous rectification method was

IEEE2026

A Synchronous Rectification Method for 6.78 MHz Applications

Synchronous rectification is routinely used in numerous applications below the megahertz range. However, with the rapid advancement of semiconductor technologies, particularly gallium nitride devices that support significantly higher switching frequencies, synchronous rectification becomes an attractive alternative for specific applications, such as inductive power transfer systems. Nevertheless, its operation at higher frequencies presents significant challenges due to the propagation delays of the control

Institute of Electrical and Electronics Engineers (IEEE)2025

Band Offsets from Angle‐Resolved Valence Band Photoemission Spectroscopy

The conduction band offset ϕ0 at semiconductor surfaces and interfaces is a crucial parameter for quantum devices exploiting proximity‐induced collective states such as superconductivity and magnetism. Recently, a method combining angle‐resolved conduction band and core‐level photoelectron spectroscopy was shown to yield band offsets aligning well with direct measurements of quantized conduction subband energies. However, the method was limited to surfaces with native accumulation layers. To address this sh

Wiley2025

Instantaneous DoA Estimation Using Poynting Vector and a Vector Sensor

Anja Skrivervik

The direction of arrival (DoA) estimation performance of a vector sensor using the instantaneous Poynting vector is evaluated in relation to the realized element patterns of the vector sensor. Up to six amplitudes, one amplitude per field component of the impinging wave, are measured in the vector sensor in a time instance and yield a DoA estimate via the instantaneous Poynting vector based on the direction of maximum incoming power. Proportional amplitude readings with respect to the impinging fields are n

Institute of Electrical and Electronics Engineers Inc.2025

Photon detecting 3d imaging sensor device

Edoardo Charbon, Preethi Padmanabhan, Augusto Ronchini Ximenes

The invention relates to a photon detecting 3D imaging sensor device for detecting a distance information for pixels in an image, comprising: - an array of detector units, wherein each detector unit is configured to receive a light signal pulse and to prov ...

2019

Compute–Forward Multiple Access (CFMA): Practical Implementations

Michael Christoph Gastpar, Sung Hoon Lim, Jingge Zhu, Erixhen Sula, Adriano Pastore

We present a practical strategy that aims to attain rate points on the dominant face of the multiple access channel capacity using a standard low complexity decoder. This technique is built upon recent theoretical developments of Zhu and Gastpar on compute ...

2019

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Related publications (9)

Performance Comparison of Analog and Digital Implementations of a Synchronous Rectification Method for 6.78 MHz Applications

IEEE2026