Tool/software: TI C/C++ Compiler
When I was looking at the board of three-phase Vienna, I found that CM1 capacitor was not welded? There is a capacitor on the schematic diagram, but it is not in the real object. What is the reason?
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Tool/software: TI C/C++ Compiler
When I was looking at the board of three-phase Vienna, I found that CM1 capacitor was not welded? There is a capacitor on the schematic diagram, but it is not in the real object. What is the reason?
Hi,
In the schematic, it says DNP which is why you don't see it on the board. That cap is originally designed for EMI filtering. For more information, please refer to the thesis below.
www.research-collection.ethz.ch/.../eth-5020-02.pdf
Regards,
Chen