| Electronics > Beginners |
| USB connector design |
| << < (3/3) |
| Karel:
--- Quote from: T3sl4co1l on April 27, 2018, 11:20:01 am ---Basically no appnote gets this. So you end up with everyone using literally the flimsiest possible ground connection. It's embarassing. For 99% of what you're doing with USB: GROUND THE SHELL! Ground it hard, in multiple points, to the ground plane. And obviously, use a ground plane, too! Tim --- End quote --- I can confirm this. I burned myself once. Now I always connect the shell to the groundplane. No resistors, no capacitors, no ferrites. |
| T3sl4co1l:
--- Quote from: ataradov on April 27, 2018, 04:36:38 pm ---On the host side only. If you ground it on the device side, then the current will flow through the shield, eliminating any positive EMI effects it may have. --- End quote --- :palm: :palm: :palm: :palm: :palm: :palm: :palm: Dude, that's precisely what it's there to do! --- Quote ---Also, it appears that there is really no consensus on this at all. And whatever opinion is expressed here by anyone can't be 100% true without a really good justification. --- End quote --- I haven't read a single book, since vacuum tubes were in vogue, that ever claimed open shields was a good thing. Do you connect your cable TV without the shield? Audio/video cables? HDMI cables? Do you connect your Ethernet with one wire in each pair floating? Tim |
| Navigation |
| Message Index |
| Previous page |