I always see stacked rectifiers when working with high voltage flybacks, where multiple identical rectifiers and capacitors are placed across multiple windings then connected in series. They are always set out a certain way on the PCB, where each gets its own dedicated area on the secondary of the converter PCB.
I have been giving a very small amount of thought to whether they could be laid out differently for high power density designs. Could they be stacked physically on top of each other, assuming that necessary spacing was placed between them and the connections from the transformer and to the output capacitors, filters and load were made correctly with wires?
I have attached an image toillustrate what I mean. I am very open to being told why this is a stupid idea and won't work, but I'd like to know why exactly. Any thoughts appreciated. Please understand it is a very rough sketch but I hope I get across the idea correctly..Cheers.
EDIT: Note in the image the connections from the transformer to the three stacked rectifiers in configuration 2 are incorrect. Each transformer winding will connect to the top of each board - and each board is then connected in series at the rightmost side, and then the final voltage is connected out from the stack of rectifiers to the capacitor filter and load.
I have been giving a very small amount of thought to whether they could be laid out differently for high power density designs. Could they be stacked physically on top of each other, assuming that necessary spacing was placed between them and the connections from the transformer and to the output capacitors, filters and load were made correctly with wires?
I have attached an image toillustrate what I mean. I am very open to being told why this is a stupid idea and won't work, but I'd like to know why exactly. Any thoughts appreciated. Please understand it is a very rough sketch but I hope I get across the idea correctly..Cheers.
EDIT: Note in the image the connections from the transformer to the three stacked rectifiers in configuration 2 are incorrect. Each transformer winding will connect to the top of each board - and each board is then connected in series at the rightmost side, and then the final voltage is connected out from the stack of rectifiers to the capacitor filter and load.
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