# Self-Oscillating Capacitive Wireless Power Transfer with Robust Operation

## TL;DR

This paper presents a self-oscillating capacitive wireless power transfer system that automatically adapts to load and distance variations, ensuring robust operation through feedback control.

## Contribution

It introduces a novel self-oscillating circuit design for capacitive wireless power transfer using operational amplifiers, enabling adaptive and robust performance.

## Key findings

- System operates effectively under load and distance changes
- Experimental results confirm robustness against parameter variations
- Theoretical analysis supports practical implementation

## Abstract

We show that a capacitive wireless power transfer device can be designed as a self-oscillating circuit using operational amplifiers. As the load and the capacitive wireless channels are part of the feedback circuit of the oscillator, the wireless power transfer can self-adjust to the optimal condition under the change of the load resistance and the transfer distance. We have theoretically analyzed and experimentally demonstrated the proposed design. The results show that the operation is robust against changes of various parameters, including the load resistance.