Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
07/11/07 14:03
Read: times


 
#141767 - Also known as
Responding to: ???'s previous message
Raghunathan said:
Though I am on the net searching for topics on this, will be glad if someone can list out the benefits ( if any ) of using the CF amplifiers.


Hi Ragu,
Also known as lock-in amplifiers, phase conscious rectifiers, synchronous rectifiers....

Basically, use a clock derived precision amplitude oscillator, say <5kHz to drive your bridge, use a pickup from the driver to clock a "bridge rectifier", where, instead of diodes you use analogue switches (or other means) to rectify the signal.

We use this a lot in our systems. Let me know if you'd like to see an example.

Steve

List of 26 messages in thread
TopicAuthorDate
Carrier Frequency amplifiers            01/01/70 00:00      
   use a chopper stabilized OP amp            01/01/70 00:00      
      Looks like my client knows ..            01/01/70 00:00      
   Also known as            01/01/70 00:00      
      Long time....            01/01/70 00:00      
         Amplfiers            01/01/70 00:00      
   LTC to the rescue            01/01/70 00:00      
      Excellent document            01/01/70 00:00      
      Well asked and answered            01/01/70 00:00      
         I'm not worthy!            01/01/70 00:00      
            The truely wise            01/01/70 00:00      
               Quote ?            01/01/70 00:00      
                  It\'s not original            01/01/70 00:00      
                     Public Domain?            01/01/70 00:00      
      Common mode rejection            01/01/70 00:00      
         Ideas            01/01/70 00:00      
            Consider            01/01/70 00:00      
               Have you seen this?            01/01/70 00:00      
                  No            01/01/70 00:00      
               What about selecting a handful for lowest offset?            01/01/70 00:00      
                  30 Euro each.            01/01/70 00:00      
                     Ok, take a small handful...            01/01/70 00:00      
                        Start the thread and go on vacation ....            01/01/70 00:00      
                           The catch            01/01/70 00:00      
                              There's always a catch with Maxim            01/01/70 00:00      
                                 Ah ha            01/01/70 00:00      

Back to Subject List