Answer by Ahad Zolfaghari for Should chassis ground be attached to digital...
In my opinion, The reason that way works well on PC, is the fact that there is only one board and also close to the power supply. My own application is one DC power supply, but several PCBs in distant...
View ArticleAnswer by David for Should chassis ground be attached to digital ground?
Connect the PCB signal ground directly to chassis ground through mounting holes the return current may not through the power cable since chassis ground may have lower impedance for return current. If...
View ArticleAnswer by Ben Philipson for Should chassis ground be attached to digital ground?
I am totally in favor of the last suggestion of David Kessner. I mainly deal with analog design on micro volt level where it is very easy to destroy the design by tying different ground signals...
View ArticleAnswer by user3624 for Should chassis ground be attached to digital ground?
This is a very complex issue, since it deals with EMI/RFI, ESD, and safety stuff. As you've noticed, there are many ways do handle chassis and digital grounds-- everybody has an opinion and everybody...
View ArticleAnswer by draeath for Should chassis ground be attached to digital ground?
The chassis ground is for safety only. From what I understand it's best to keep the actual ground plane of the circuit isolated, meaning that the chassis and digital grounds only connect at/outside of...
View ArticleAnswer by Brian Carlton for Should chassis ground be attached to digital ground?
There is never a need to use a 0 \$\Omega\$ resistor. That's a common CYA from someone who wanted to two or more of 1) tie them together at a single point 2) wasn't sure, and wanted to be able to do...
View ArticleShould chassis ground be attached to digital ground?
I'm working on a PCB that has shielded RJ45 (ethernet), RS232, and USB connectors, and is powered by a 12V AC/DC brick power adapter (I do the 5V and 3.3V step down on board). The entire design is...
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