Difference between revisions of "Spin echo generator board (in progress)"

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-Low-cost, 800mA RF power amplifier used for tabletop MRI scanners to drive small solenoid coils (~1cm diameter NMR sample tubes).  This board uses the Motorola MHW592 RF amplifier module, which is obsolete, but available on eBay.  The board runs on 24 Volts and includes a linear regulator and blanking circuit controlled by a gating signal from the spectrometer.  The blanking cuts power to the RFPA quickly (for instance to eliminate unwanted RF noise during signal readout).
-Datasheet for MHW592:
-https://datasheetspdf.com/pdf-file/1114767/Motorola/MHW592/1
-[https://rflab.martinos.org/images/6/6b/Tabletop_RFPA_motorola.zip Click here] to download EAGLE board files (layout and schematic), GERBER files, and Bill of Materials.

Revision as of 19:07, 23 November 2020