**6. Conclusion**

Recent advancements in the semiconductor integrated circuits and functional materials technologies have accelerated the demand for electronic devices such as the internet of things (IoT) and wearable sensors, which have low power consumption, miniature size, and high data transfer efficiency.

Wireless power transfer has become the alternative solution to current electronic devices that rely on bulky batteries to supply the power and energy.

**5**

**Author details**

Mohamed Zellagui1,2

provided the original work is properly cited.

1 Department of Electrical Engineering, University of Batna 2, Batna, Algeria

2 Department of Electrical Engineering, University of Quebec, Quebec, Canada

\*Address all correspondence to: m.zellagui@univ-batna2.dz; m.zellagui@ieee.org

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

*Introductory Chapter: Overview of Wireless Power Transfer Technologies*

*DOI: http://dx.doi.org/10.5772/intechopen.99196*

*Introductory Chapter: Overview of Wireless Power Transfer Technologies DOI: http://dx.doi.org/10.5772/intechopen.99196*
