Peter Serano1, Mathew Brevard1, William Nastri1, Reinhold Ludwig2
1InsightMRI, Worcester, MA, USA; 2ECE, Worcester Polytechnic Institute, Worcester, MA, USA
This paper proposes an electronic circuit that enables the rapid tuning and detuning of RF coil configurations. A reconfigurable circuit capable of providing either a -30V or -250V reverse bias voltage for PIN diode controlled coil systems was designed, constructed, and tested. The switching time between tune and detune states is typically within 1μs.