Omnidirectional Wireless Power Transfer with Automatic Power Flow Control

TL;DR

This paper introduces an omnidirectional wireless power transfer system that automatically adjusts power flow using three orthogonal transmitter-repeater pairs, achieving high efficiency and uniform power delivery regardless of receiver position.

Contribution

The paper proposes a novel omnidirectional WPT system with automatic power flow control using orthogonal Tx-Rp pairs, ensuring uniform high-efficiency power transfer.

Findings

Achieves 90% transfer efficiency

Provides uniform power regardless of receiver position

Automatically adjusts power based on mutual inductance

Abstract

We present an omnidirectional wireless power transfer (WPT) system capable of automatic power flow control using three orthogonal transmitter (Tx)-repeater (Rp) pairs. The power drawn from each transmitter is automatically adjusted depending on the mutual inductance between the receiver and the Tx-Rp pair. The proposed approach enables the receiver to harvest almost uniform power with high efficiency (90\%) regardless of its position.