Current loop based link signal transfer - Page 2

lumanauw · 21st June 2005, 07:03 AM

Hi, Grey,

I'm not making a line driver here. I'm applying this for a preamp, with no "long" cable. It is in openloop mode, no feedback, and how many voltage gain I wanted depends only the 1 final resistor value. The bigger resistor I put in the final, the bigger voltage gain I get in openloop mode.

PMA · 21st June 2005, 04:08 PM

Quote:

Originally posted by GRollins
With current-driven connections vs. voltage-driven ones all you accomplish is to exchange series and parallel R, C, and L. They still matter, just in a different configuration.

Yes, from the first point of view. My objective result is that I have completely cancelled all of the RF and HF D/A residual stuff, that has been present with voltage drive.

lumanauw · 23rd June 2005, 03:46 AM

Voltage in, current out, no feedback. I just realize NP is (has) doing this as power amplifier in F2 amps, while I just think of it as preamp

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21st June 2005, 07:03 AM	#11
lumanauw diyAudio Moderator Emeritus Join Date: Oct 2002 Location: Bandung	Hi, Grey, I'm not making a line driver here. I'm applying this for a preamp, with no "long" cable. It is in openloop mode, no feedback, and how many voltage gain I wanted depends only the 1 final resistor value. The bigger resistor I put in the final, the bigger voltage gain I get in openloop mode.

23rd June 2005, 03:46 AM	#13
lumanauw diyAudio Moderator Emeritus Join Date: Oct 2002 Location: Bandung	Voltage in, current out, no feedback. I just realize NP is (has) doing this as power amplifier in F2 amps, while I just think of it as preamp