Xavier Fernando
Power / Controls
Wireless Power transfer was first demonstrated by Nikola Tesla in the 1890s, however it is only really in the last decade that the technology has been harnessed to the point where it offers real, tangible benefits to real world applications. In particular, the development of resonant wireless power technology for the Consumer Electronics market, has seen charging by induction (wireless charging) deliver new levels of convenience for the charging of millions of everyday devices.
The objective of this project is to develop a device for wireless power transfer with high efficiency. This unit shall actually charge a cell phone.
The system shall work with 60 HZ, 120 V supply and charge a cell phone.
The Conversion efficiency has to be over 70%.
To achieve wireless power transfer, 60 Hz Alternating Current (AC) current is inverted to DC. This it is converted into high frequency AC by specially designed electronics built into the transmitter.
The alternating current energizes a copper wire coil in the transmitter, which generates a magnetic field. Once a second (receiver) coil is placed within proximity of the magnetic field, the field can induce an alternating current in the receiving coil.
Electronics in the receiving device then converts the alternating current back into direct current, which becomes usable power.
The full group is responsible for the whole project.
Transmitter module
Cellphone receiver
Maximizing the power conversion
XF06: Wireless Power Transfer for Cell Phones | Xavier Fernando | Not yet submitted at No time