Wireless Power Transfer

Wireless power transfer (WPT) or wireless energy transmission is the transmission of electrical power from a power source to a consuming device without using solid wires or conductors. It is a generic term that refers to a number of different power transmission technologies that use time-varying electromagnetic fields. Wireless transmission is useful to power electrical devices in cases where interconnecting wires are inconvenient, hazardous, or are not possible. In wireless power transfer, a transmitter device connected to a power source, such as the mains power line, transmits power by electromagnetic fields across an intervening space to one or more receiver devices, where it is converted back to electric power and utilized.  Wireless power techniques fall into two categories, non-radiative and radiative. In near-field or non-radiative techniques, power is transferred over short distances by magnetic fields using inductive coupling between coils of wire or in a few devices by electric fields using capacitive coupling between electrodes.

Wireless Power Transfer

About Wireless Power Transfer

How Wireless Energy Transfer Works

Building a wireless energy transfer circuit step-by-step

Simple Wireless Electricity System

Simple Wireless Electricity - Part II - The BAC's

Simple Wireless Electricity - Part III - Diversity

Wireless power transmission using Tesla coils

Wireless Power Transmission 30kw over 1 mile at 82.5% efficiency Goldstone 1975

Project On Wireless Power Transfer

Wireless Power Transfer Wireless Charger Circuit

Single Wire Energy Transfer & A Human Dipole Antenna

Wireless Electricity ( dipole antenna )