Recommendation needed for a switch on a PSD circuit

Discussion in 'Homework Help' started by hunterage2000, Feb 2, 2012.

  1. hunterage2000

    Thread Starter Active Member

    May 2, 2010
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    Hi, Can someone recommend a switch for the attached circuit. I want it to be switched on and off by a square wave reference signal so at the output I get a full-wave rectified sine wave.
     
  2. praondevou

    AAC Fanatic!

    Jul 9, 2011
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  3. hunterage2000

    Thread Starter Active Member

    May 2, 2010
    400
    0
    Thanks for the suggestion mate, I just took that out of a book to be honest. I can't figure out the concept of a lock-in amplifier because apparently the AC source for the bridge must also be the synchronised drive signal for the switch.
     
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