Difference between revisions of "Low-cost 1 Watt RF power amplifier (in progress)"
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(Created page with " 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 ampl...") |
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[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. | [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. | ||
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Revision as of 14:26, 19 May 2022
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 This board uses the Motorola MHW592 RF amplifier module, which is obsolete, but available on eBay.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
Click here to download EAGLE board files (layout and schematic), GERBER files, and Bill of Materials.
