Tuesday, May 27, 2008
300w Rf Amplifier using low priced Mosfet
by Ir Eliza Sukiman MM MA
YB 0 BAJ Indonesian Amateur Radio station
I have read Rf Amplifier Circuit using mosfets on the ARRL Handbook 2002. The amplifier used a pair of Motorola IRF510 transistors to generate 5 or 6 watts of peak envelope power from a 48V supply and operated within the frequency spectrum of 1.8 to 28 MHz.
It might be of further interest to describe a higher power version of a linear amplifier which I had reason to design, using two IRFP 150 ,WO12L54F , or other . The Circuit can deliver a power off 250w at 1.8 MHz, 300w at 3.5 MHz and 200w at 7 MHz with 36 v . The IRF150 transistors used the International Rectifier (IR) .
see . . . Schematic
Diposkan oleh Ir.Eliza Sukiman.MM.MA di 7:57 AM