Using the class E amplifier as the wireless charging transmitter circuit topology, wireless power transmission is performed at a frequency of 6.78Mhz or 13.56Mhz, and the GaN transistor is used as the class E amplifier switch. This device is suitable for high-frequency operation and have relatively small onresistance, high breakdown voltage, and no reverse recovery loss, which can achieve the purpose of high conversion efficiency of the amplifier. Resonant power transmission is different from inductive transmission. Resonant wireless charging can increase the transmission distance and charge multiple targets at the same time. In the future, it can be installed in the parking lot as a power supply center for electric vehicles. At the same time, The wireless charging receiving end needs to be supplied to the motor through a high frequency rectification circuit and DCDC converter. Therefore, a flyback converter will be designed between the motor and the wireless power receiving end. The low cost and high conversion efficiency of the flyback converter make it becomes the first choice. In addition to the previous research results of our team, the advantage of coil cooling can be used to improve the transmission power. The development of a wireless power supply system for the embedded receiving coil in the motor which provides wireless power greater than 100W will provide forward-looking contributions to future electric vehicles. In the first year, it is expected to complete the preliminary design of the class E amplifier and motor. In the second year, it is expected to complete the design of the motor drive, the design of the wireless charging receiving coil, and the DC converter to provide appropriate voltage to the motor.

  • Field: Engineering
  • School: National Yang Ming Chiao Tung University
  • Organizer: Department of Mechanical Engineering
  • Period of Apply: Aug. 1st, 2023 - July 31st, 2024
  • Term: Regular term / Regular Academic session
  • Contact Person:Prof. Wei-hua Chieng, Li-Chuan Tang