MOSFET_BUFFER_AMPLIFIER

Published:2009/6/17 2:09:00 Author:May | From:SeekIC

A MOSFET is used as a wideband buffer amplifier. T1 is wound on a toroid of approximately 1/2 diameter, with material suitable for frequency (usually 1- to 20-MHz range). The turns ratio should be about 4:1 depending on load imped-ance. Typically, at 4 MHz, there are 18 turns on the primary, 4 turns on the secondary, and the stage gain is about 14-dB voltage (ZL = 50 Ω).



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