A Wireless Power Transfer System for MRI Scanners
- Resource Type
- Conference
- Authors
- Byron, Kelly; Robb, Fraser; Vasanawala, Shreyas; Pauly, John; Scott, Greig
- Source
- 2018 IEEE Wireless Power Transfer Conference (WPTC) Wireless Power Transfer Conference (WPTC), 2018 IEEE. :1-4 Jun, 2018
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Geoscience
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Magnetic resonance imaging
Microswitches
Impedance matching
Radio frequency
Inductance
Impedance
wireless power transmission
impedance matching
microelectromechanical systems
- Language
- ISSN
- 2573-7651
Wireless power transfer is a key component to creating comfortable and completely wireless MRI receive coil arrays. Here, a WPT system is presented using a Class-E power amplifier driving an array of primary coils with a single secondary coil and Class-E rectifier. An RF MEMs switched adjustable impedance matching system is added to match the variable load presented by the coupled coils to the desired load of the power amplifier. The system is shown to be capable of transferring several watts of power inside the MRI bore.