Two Bridge Rectifiers In Parallel

Discussion in 'Electronic Basics' started by Bret Cahill, Jan 8, 2006.

  1. Bret Cahill

    Bret Cahill Guest

    Two otherwise identical 2 phase ac sources are 90 degrees out of phase
    and you want to convert them to a single dc power supply.

    Is it possible to simply use two bridge rectifiers, one for each ac
    source and then connect the + output from one bridge to the + from the
    other, etc.?

    Assume the variation in dc voltage isn't an issue as it should be
    attenuated somewhat anyway.


    Bret Cahill
     
    Bret Cahill, Jan 8, 2006
    #1
    1. Advertisements

  2. Bret Cahill

    Tim Williams Guest

    Yeah, that's a two-phase rectifier. A three-phase rectifier has a FWB on
    each of three phases, each 120 degrees apart. Two phase is two pairs of
    wires, one 90 degrees ahead or behind (depending on your point of view) the
    other. Since the peaks do no coincide, it will work just fine.

    Tim

    --
    Deep Fryer: a very philosophical monk.
    Website: http://webpages.charter.net/dawill/tmoranwms

    "Bret Cahill" <> wrote in message
    news:...
    > Two otherwise identical 2 phase ac sources are 90 degrees out of phase
    > and you want to convert them to a single dc power supply.
    >
    > Is it possible to simply use two bridge rectifiers, one for each ac
    > source and then connect the + output from one bridge to the + from the
    > other, etc.?
    >
    > Assume the variation in dc voltage isn't an issue as it should be
    > attenuated somewhat anyway.
    >
    >
    > Bret Cahill
    >
     
    Tim Williams, Jan 9, 2006
    #2
    1. Advertisements

  3. "Bret Cahill" <> skrev i melding
    news:...
    > Two otherwise identical 2 phase ac sources are 90 degrees out of phase
    > and you want to convert them to a single dc power supply.
    >
    > Is it possible to simply use two bridge rectifiers, one for each ac
    > source and then connect the + output from one bridge to the + from the
    > other, etc.?
    >
    > Assume the variation in dc voltage isn't an issue as it should be
    > attenuated somewhat anyway.


    Yes, you'll end up with a DC voltage with much less ripple :)
     
    Geir Klemetsen, Jan 9, 2006
    #3
  4. Bret Cahill wrote:
    > Two otherwise identical 2 phase ac sources are 90 degrees out of phase
    > and you want to convert them to a single dc power supply.
    >
    > Is it possible to simply use two bridge rectifiers, one for each ac
    > source and then connect the + output from one bridge to the + from the
    > other, etc.?
    >
    > Assume the variation in dc voltage isn't an issue as it should be
    > attenuated somewhat anyway.
    >
    >
    > Bret Cahill
    >

    It works fine as long as the two sources of AC are either isolated
    from each other, or all ends equally swing positive and negative
    around a common node.
     
    John Popelish, Jan 9, 2006
    #4
  5. Bret Cahill

    Bret Cahill Guest

    > It works fine as long as the two sources of AC are either isolated
    > from each other, or all ends equally swing positive and negative
    > around a common node.


    The sources would isolated until they reached the bridge.

    Actually I was interested eliminating two reciprocating cylinders &
    crankshaft by piping two "liquid pistons" through a check valve bridge
    to power a turbine.

    I'll search Google for a check valve bridge. It may be something that
    is only useful in theory.


    Bret Cahill
     
    Bret Cahill, Jan 10, 2006
    #5
    1. Advertisements

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
  1. Harry Muscle

    Very very simple question about bridge rectifiers

    Harry Muscle, Dec 17, 2003, in forum: Electronic Basics
    Replies:
    4
    Views:
    1,064
    P.R.Brady
    Dec 19, 2003
  2. Replies:
    4
    Views:
    7,628
  3. Jon Slaughter

    paralleing bridge rectifiers

    Jon Slaughter, Apr 15, 2007, in forum: Electronic Basics
    Replies:
    21
    Views:
    1,381
    redbelly
    Apr 20, 2007
  4. DAVIDHILLS

    Double Bridge Rectifiers Purpose

    DAVIDHILLS, Aug 26, 2008, in forum: General Electronics Chat
    Replies:
    1
    Views:
    1,465
  5. Zellarman

    Bridge rectifiers and voltage regulators

    Zellarman, Nov 10, 2011, in forum: General Electronics Chat
    Replies:
    1
    Views:
    1,076
    davenn
    Nov 10, 2011
  6. w4audi

    Bridge Rectifiers to repair battery charger

    w4audi, Feb 23, 2013, in forum: Electronic Projects
    Replies:
    5
    Views:
    5,384
    (*steve*)
    Feb 25, 2013
  7. chopnhack

    Help with ADC conversion registers in PIC or possible logic in code flaw

    chopnhack, Aug 27, 2016, in forum: Microcontrollers and Programming
    Replies:
    15
    Views:
    369
    chopnhack
    Sep 1, 2016
  8. Lawrenciumbc
    Replies:
    7
    Views:
    557
    Lawrenciumbc
    Sep 20, 2016
Loading...