RS>> I've only heard that called a full wave rectifier circuit, but
RS>> not a push-pull. I've only heard of push-pull in regards to
RS>> amplifiers. Learn something new every day.

JB>> It's the same anaolgy between push-pull and bridge amplifiers
JB>> amplifier output stages, just replace the transistors with
JB>> diodes. :)

RS> Push-pull amplifiers and a full-wave rectifier circuit using a
RS> center-tapped transformer seem similar; but, a bridged
RS> transformerless amplifier has both amplifiers conducting for 360ø
RS> whereas a bridge rectifier has individual diodes which are
RS> conducting for only 180ø.


JB> if you draw them right it works...


JB>    final output stage of
JB>    bridged amplifier.                    Bridge rectifier
JB>     _______________________ +      - _______________________
JB>        |               |                |               |
JB>        |               |                |               |
JB>      |/'               `\|             _|_             _|_
JB>    --|~                 ~|--           \~/             \~/
JB>      |\                 /|             ~T~             ~T~
JB>        |     output    |                |               |
JB>        |-----o    o----|                |-----o AC o----|
JB>        |               |                |               |
JB>      |/'               `\|             _|_             _|_
JB>    --|                   |--           \~/             \~/
JB>      |\,               ,/|             ~T~             ~T~
JB>       ~|               |~               |               |
JB>        |               |                |               |
JB>    ~~~~~~~~~~~~~~~~~~~~~~~~ -     + ~~~~~~~~~~~~~~~~~~~~~~~~

 Yes, now I can plainly see your point.
(Great ANSI art, too.)



JB>      push pull amplifier               push pull rectifier

JB>           o         o                      o         o
JB>           | output  |                      |  AC     |
JB>           |         |                      |         |
JB>           | | | | | |                      | | | | | |
JB>            - - - - -                        - - - - -
JB>       ===================              ===================
JB>       ===================              ===================
JB>        .-.-.-.-.-.-.-.-.                .-.-.-.-.-.-.-.-.
JB>        | | | | | | | | |                | | | | | | | | |
JB>   +    |       |       |           -    |       |       |
JB>   -------------'       |           -------------'       |
JB>        |               |                |               |
JB>      |/'               `\|             _|_             _|_
JB>    --|                   |--           \~/             \~/
JB>      |\,               ,/|             ~T~             ~T~
JB>       ~|               |~               |               |
JB>        |               |                |               |
JB>    ~~~~~~~~~~~~~~~~~~~~~~~~ -     + ~~~~~~~~~~~~~~~~~~~~~~~~



JB>  Hmmmm, it gets worse...


JB>     What's this one called?              Voltage doubler
JB>     _______________________ +      - _______________________
JB>        |               |                |               |
JB>        |               |                |               |
JB>      |/'               |               _|_              |
JB>    --|~              -----             \~/            -----
JB>      |\              ~~T~~             ~T~            ~~T~~
JB>        |     output    |                |               |
JB>        |-----o    o----|                |-----o AC o----|
JB>        |               |                |               |
JB>      |/'               |               _|_              |
JB>    --|               -----             \~/            -----
JB>      |\,             ~~T~~             ~T~            ~~T~~
JB>       ~|               |                |               |
JB>        |               |                |               |
JB>    ~~~~~~~~~~~~~~~~~~~~~~~~ -     + ~~~~~~~~~~~~~~~~~~~~~~~~

 A waste of a capacitor? 

 TTYL.

 Robert

 * SLMR 2.1a * Why do people ask "Do you have any blue poop on?" ?
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