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michaelkh

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Everything posted by michaelkh

  1. Where is the AEVA forum?

    michaelkh posted a topic in Inverters
    This forum seems to have disappeared off the AEVA site, does anyone have a new web address?

  2. Mecer/Axpert Inverter Repair

    michaelkh replied to michaelkh's topic in Inverters
    Hi Coulomb, the model I have is a Mecer SOL-I-AX-5M, rated 5000vVA/4000W. South African branded Axpert. Thanks for the pointer to the schematic, that was a tremendous help. There are minor differences in that my unit has a single semiconductor (Q32) in the buck circuit, whereas the schematic shows two. However I can now work through and identify the faulty components. Regards

  3. Mecer/Axpert Inverter Repair

    michaelkh posted a topic in Inverters
    Hi, I am attempting a repair of a Mecer inverter (board 16-500449-01G). The inverter bridge is blown (QA1,QC1,QB2,QC2). Adjacent to the IGBT optoisolator driver IC's are diodes D44,D4,D45,D7,D8. these appear to be two diode packages with common cathode. Does anyone have any idea of their type number? Also is Q32 a MOSFET or IGBT and its type number.

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