Router for wireless power packet transmission: Design and application to intersystem power management

TL;DR

This paper introduces a wireless power packet router circuit that enables selective power transmission across multiple channels, integrating power and information for efficient intersystem power management in mobile systems.

Contribution

It presents a novel wireless power packet router circuit that supports both wired and wireless power sharing, advancing energy management in mobile and interconnected systems.

Findings

The system can wirelessly transmit power over multiple channels.

It effectively integrates wired and wireless power management.

Demonstrates potential for improved intersystem power sharing.

Abstract

Power supply for small-scale battery-powered systems such as electric vehicles (EVs and mobile robots) is being actively researched. We are particularly interested in energy management, which considers the interconnection of such systems close to each other. This allows for overall redundancy to be maintained without assuming excessive redundancy with individual power sources. Its implementation necessitates a high level of integration between power management and information and communication technology. As one of these methods, this study investigates energy management based on power packetization. When the individual systems to be connected have moving parts or are mobile, wireless power transmission is a promising method for power sharing. However, power packetization has so far only been considered for wired transmission. In this paper, we address the integration of power and information in wireless channels using power packetization. We propose a power packet router circuit that can wirelessly transmit power over multiple channels selectively. Furthermore, we demonstrate that the developed system can handle both wired intrasystem power management and wireless intersystem power sharing in a unified manner.