DC to Ac inverter

Discussion in 'The Projects Forum' started by athulascc, May 17, 2015.

  1. athulascc

    Thread Starter Member

    Aug 15, 2014
    86
    1
    [​IMG] [​IMG] i am wondering about this design.
    How it works?
    Can you give a hint
     
  2. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
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    Unfortunately, one of your pictures cannot be seen? I guess - it was the schematic.
     
  3. crutschow

    Expert

    Mar 14, 2008
    13,000
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    A hardware picture tells very little about how a circuit operates.
     
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,521
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    Should be very simple to reverse engineer a circuit such as that with so few components.
    Max.
     
  5. athulascc

    Thread Starter Member

    Aug 15, 2014
    86
    1
    yes. but I have not it really have. it is only image.
    I want to know the similar circuit or topology
     
  6. AnalogKid

    Distinguished Member

    Aug 1, 2013
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    No schematic, no idea.

    ak
     
  7. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Judging by the apparent symmetry I'd guess the two tabbed transistors provide a push-pull oscillator drive arrangement for the primary of the bigger transformer. The smaller 'transformer' may be a just a choke.
     
    mattbullet likes this.
  8. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    got any more pictures of different angles ,and the track side view.....
     
  9. DickCappels

    Moderator

    Aug 21, 2008
    2,651
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    It probably uses this topology (below) but without the snubbers (.01 uf capacitors and 22 ohm resistors) and probably without the output rectifiers and filter.

    One transistor will be on until the base drive transformer saturates then it will turn off, which in turn turns on the other transistor until the base drive transformer saturates in the opposite direction.

    [​IMG]
     
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