Huijun Yu1, Kelvin Jon Layton1, Sebastian Littin1, Stefan Kroboth1, Feng Jia1, and Maxim Zaitsev1
The matrix gradient coils are showing its potential in offering high
flexibility in generating customized spatial magnetic fields. However, the high
demands on the amplifiers might become unacceptable for conventional one-coil
one-amplifier drive method. We developed a 12 channel gradient driver system
integrated with multi-channel switches for matrix gradient coils to drive a
higher number of coil elements. The system was tested successfully with a
home-built matrix gradient coil with its channels grouped in 12 clusters.