how a SCR half wave rectifier circuit works.........?

Discussion in 'General Electronics Chat' started by ziyadh, May 25, 2009.

  1. ziyadh

    Thread Starter New Member

    May 25, 2009
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    i just studied about the SCR halfwave rectifier .
    but how can the load be connected before the SCR.
    does it make any sense of rectification...........
     
  2. Wendy

    Moderator

    Mar 24, 2008
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    Show us a schematic and we might be able to help. Electronics is very visual, and a picture will clear up confusions.
     
  3. deepak007

    Active Member

    Sep 30, 2007
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    here' the circuit. pls explain
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
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    The SCR only permits the negative half cycle to push current into the battery.
     
  5. Wendy

    Moderator

    Mar 24, 2008
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    Same person? Or same course?

    You'll also find SCRs used in DC regulators (usually switching) as crowbar circuits. They short the entire power supply if the regulation fails. The reason is they can be feeding some very expensive electronics (think $10K or more) and the power supply, while expensive, is the cheap part.
     
  6. DickCappels

    Moderator

    Aug 21, 2008
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    And they can also be used as regulators by modulating the firing angle, then following the rectifiers with a low pass filter. Great way to regulate thousands of watts, but may not be convenient for smaller applications.
     
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