Senior Design 2020 – Electrical and Computer Engineering Team 2005
Electrical and Computer Engineering Team 2005
Miguel Castaneda Acosta Kevin Krohomer Natong Lin Joseph Roca
Wireless Charging and Data Transmission Via Resonant Beam
We need to charge our electronic devices on a daily basis. The inconvenience of carrying a power cord and looking for an outlet brings us to a demand of wireless charging. In our project, we address this problem through the concept of transmitting data and power via resonant beam. Our system consists of a transmitter and receiver, where power is transmitted through a 532 nm laser. There is an optical feedback loop that acts as a trigger to stop the transmission of power when the line of sight is obstructed, therefore providing feedback to a microcontroller unit (MCU). The MCU regulates the power transmission and modulates the data signal. The modulation occurs though the implementation of a switching circuit that is directly controlled by a MCU. At the receiving end, the resonant beam is converted into electrical power via photovoltaic cell and at the same time, the data signal is recovered via software-defined radio. A converter amplifies the output voltage of the PV cell to charge a device and interpret the data.