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I am trying to determine how a piece of equipment that powers a HV generator. works, so I can use similar circuit in another application. The unit uses 2 buck converters to reduce 24VDC to send to the transformer in the HV converter. 2 N channel mosfets (2K2313) are used as choppers to make an AC wave from for the transformer. The thing that puzzles me is that the center tap of the transformer is 0 volts (ground) and the source of the mosfets are connected to the two windings on either side of the center tap. The buck modules are connected to the drain of the mosfets and the gates are connected to a pules generator. This seems backwards to me, as it seems that the buck modules should be connected to the source and the transformer windings to the drains. This would work if the mosfets were P channel, but I can't see how N channel unit would work. |
July 17, 2024 |
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