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Overall Arrangement, at present with one half bridge the other end of the primary coil goes to the mid point of two 1uf polpropylene caps connected in series accross the HV supply.

The control board, I have delibrately moved away from the one chip controllers mainly to reduce the dead time.

This shows the new arrangement - driving every gate from a separate winding - this should have the additional benefit of avaiding the situation where one blown FET short circuits putting a very high voltage onto all the other gates blowing up all four. If one does blow check the schottly diodes 3045, and the zeners.

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