There is currently another thread about inductors but i didn't want to hi-jack it. In it a poster mentions using an inductor to block Backward Radiation of an RF Source.
I have a pc board with a similiar circuit that combines a RF Freq. Source (1Mhz) and a DC Source (20v) (both outputs are tied together to drive a RF Coil).
The output of the RF circuit uses a Series Capacitor to block the DC (from getting into the RF Section) and the output of the DC circuit uses a Series Inductor to block the AC (RF from getting into the DC Section).
The DC uses a series 2mH inductor (on the DC output) but 200mv of the (1Mhz) signal still gets through the inductor into the DC section (200mv@1Mhz).
Would putting two back/back diodes in series with the inductor block the 200mv from getting through? Since the diodes need ~= 600mv to conduct? How can I totally block the 200mv/1Mhz?
Appreciate any info... thanks.
I have a pc board with a similiar circuit that combines a RF Freq. Source (1Mhz) and a DC Source (20v) (both outputs are tied together to drive a RF Coil).
The output of the RF circuit uses a Series Capacitor to block the DC (from getting into the RF Section) and the output of the DC circuit uses a Series Inductor to block the AC (RF from getting into the DC Section).
The DC uses a series 2mH inductor (on the DC output) but 200mv of the (1Mhz) signal still gets through the inductor into the DC section (200mv@1Mhz).
Would putting two back/back diodes in series with the inductor block the 200mv from getting through? Since the diodes need ~= 600mv to conduct? How can I totally block the 200mv/1Mhz?
Appreciate any info... thanks.