QR Flyback Switching Regulator as driver

Discussion in 'General Electronics Chat' started by Teiknethal, Jan 18, 2013.

  1. Teiknethal

    Thread Starter New Member

    Jan 9, 2013
    9
    0
    Does anyone know if it is possible to drive a flyback via: http://html.alldatasheet.com/html-pdf/108380/ALLEGRO/STRF6626/295/1/STRF6626.html ?

    I would consider myself as a beginner in these types of circuits so I have no idea what I am doing. I would love to pick at the brains of a few people that know what they are doing.

    My questions are: Can it drive the flyback? If so, what is the input voltage to the actual IC? Can I run it off DC (figure 6 they have an AC input FW rectified before it hits either the IC or flyback) considering I have very few AC power supplies. I highly doubt it is easily possible, but is it possible to have some sort form of audio modulation run with this?

    If anyone could post any info, or even a schematic, it would be greatly appreciated!
     
  2. timescope

    Member

    Dec 14, 2011
    298
    44
    What is a flyback ?
    Is it a "flyback transformer", the Line Output Transformer used in CRT televisions ?
    STRF6626 is a Switched Mode Power Supply control circuit and the word flyback refers to the mode of operation of the supply.

    Timescope
     
  3. Teiknethal

    Thread Starter New Member

    Jan 9, 2013
    9
    0
    Ah, sorry about that. Didn't even think about my wording on that.

    But yes, the FBT I'm working with is the largest transformer I have at my disposal, outside of a few MOTs. To the best of my knowledge it was designed as a DC FBT with the built in diode.

    Also, does anyone know the most efficient/least self-destructive NPN (or PNP) driver? I have found just about every driver schematic available, however I don't know which are the safest (in terms of safety for the components/transformers) drivers that have the most power potential. It unfortunately HAS to be a BJT based driver because I blew out my last MOSFET a few days ago and haven't been able to find any since.
     
  4. timescope

    Member

    Dec 14, 2011
    298
    44
    I'm lost. What is an MOT ?
    Is it a Magneto-optical Trap ?
    A picture is worth a thousand word so a schematic would help.

    Timescope
     
  5. Teiknethal

    Thread Starter New Member

    Jan 9, 2013
    9
    0
    Again, poor choice of words on my part. Sorry, haha.

    What I meant to say is the flyback transformer that I am using for this is the biggest transformer I have at my disposal, apart from a few M.O.T's (Microwave Oven Transformer) that I also have. Attached are a couple pictures of the side view and the bottom. If needed I can provide a picture of the PCB pinout (with labels), but I don't really think that is necessary considering I already know HV Ground and I added 8 winds of 20 AWG for a new primary. (in the second picture ignore the red, black, and yellow alligator clips due to my new primary)
     
Loading...