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previous: peter It is a semi-buffered loop(... -- 10/29/1999 2:56 PM

Re: bias/rectifier observations/questions

10/29/1999 10:41 PM
Ken Gilbert	Re: bias/rectifier observations/questions Peter, just a quick point here... If you use a voltage divider to decrease your signal swing, you will be increasing the output imepdance. If you've got a 1M series R, and a 20K to ground, then your DRIVING impedance is 1M. Look at it this way--no matter how robust your CF driver is, it cannot push a lot of current through that 1M series resistor. Your best bet here is to decrease BOTH of the voltage divider resistors as much as you can. That will truely decrease your FX loop's output impedance. KG

10/29/1999 10:41 PM

Ken Gilbert

Re: bias/rectifier observations/questions

Peter, just a quick point here...

If you use a voltage divider to decrease your signal swing, you will be increasing the output imepdance. If you've got a 1M series R, and a 20K to ground, then your DRIVING impedance is 1M.

Look at it this way--no matter how robust your CF driver is, it cannot push a lot of current through that 1M series resistor.

Your best bet here is to decrease BOTH of the voltage divider resistors as much as you can. That will truely decrease your FX loop's output impedance.

KG

Replies:

Randall Aiken Actually, Ken, I believe Peter is c... -- 10/29/1999 11:56 PM
Stephen Conner oh no it's not -- 11/1/1999 11:59 AM