February 2013
Intermediate to advanced
480 pages
13h 35m
English
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Recommendations for Common-Mode Filter Position
In DC disconnect, access to the bulk capacitor of the PSU is available to absorb the huge surge energy. See Figs. 11.5, 11.7, and 11.10. This is fortuitous, but it also means we should not place an unnecessary impedance or barrier between the PSE chip (that we wish to protect) and the bulk cap (its protection). For this reason, it is not advisable to place any exotic inrush-limiting circuitry, or even common-mode filters, between the PSE chip and the bulk cap of the PSU. A common-mode filter in the port has pros and cons. We now discuss some key points regarding a common-mode filter in order to make the best decision.
1. It is usually added to just make up for poor filtering in the PSU, so it ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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