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Abstract #4770

Reconfigurable Electronic Tune-Detune Circuit for RF Coil Systems

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.