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there is that ... I was going on the assumption that he drew that out looking at a power driver board. It stands to reason that he would have inspected the induction coils and connections in the mean time.Or you have not found the root cause, which may be outside of what schematic you showed us.
The inductor coils are almost always water cooled... how are the IGBTs cooled?Thanks !
in my machine use water cooler ,i think it is not burn by over heat ,inductor coil is ok