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Just started to build MPP

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  • egonw3
    replied
    Until Step 3 averything was perfect (1,058 kHz on TP1, pulse width ca. 58us).
    I've just finished Step 4 (at least soldiering). I've connecter 1k pot in place of R1 to be able to change it's value. I've made a "temporary coil" that is about 350uH 1,8ohm (basket coil 10x8 made of AWG24 enemalled copper winding wire). I don' know much about osciloscopes, but that's what I got on my old scopometer: https://drive.google.com/folderview?...00&usp=sharing
    And here I need your kind assistance: I don't know if it is OK.

    Leave a comment:


  • Silver Dollar
    replied
    I got my pcb all built but I ordered the wrong part for the 4538's. I got
    SMT on those too! I was ordering for another project that is all SMT so
    I guess I had that on my mind. Well I'll have to order a few adapters
    from across the ocean so I won't have it running today...

    I like the design and setup. I'm hoping it works good with one of
    those Chance Basket coils. I might buy some more Litz (now that
    I know what I'm doing) and build a perfect one.

    It would be nice if someone made a housing for this style coil.

    Leave a comment:


  • Silver Dollar
    replied
    Double is better and you need around 70 feet of wire.

    Leave a comment:


  • egonw3
    started a topic Just started to build MPP

    Just started to build MPP

    Hallo!
    I've just started to build my MPP and almost finished Step 3 (I need to buy Q2, R5 and Cxx so I need to wait until saturday ).
    After Step 2 I have voltages -4,92V and +5,02V.

    I am going to build 8'x10' basket coil made of 175x46 Litz wire. I wonder whether I should buy single od double layer wire and how much wire do I need.
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