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It depends. For high-speed logic or RF circuits, a ground plane is necessary. For others, ground or power plane is not required.
You should, echter,
Lees verder: Signal and Power Integrity Fundamentals on High-Speed PCB
#PCB-ontwerp
The PCB has a pulse oximeter mounted on the surface, and it’s tolerance is 0.6mm. The problem is the pulse oximeter needs to touch the bottom case at all times. How to best mount the PCB in the case without putting too much stress on the pulse oximeter? Will screws with flexible washers be all right? Sadly separating pulse oximeter from main PCB is not an option.
I’m designing a new PCB where I have a whack of connectors that have to line up with the metalwork. There are some problematic connectors. All 4 pins are round. I want to have the holes as small as possible while allowing for good solder adhesion over the full length of the pin. I’m looking for guidance on how much clearance around the component lead I should have in order to get good solder wetting and adhesion.
I have a THERMAL problem when designing a power LED ALUMINUM PCB. I have 10 5W UV power LEDs.Coldwater flows through water heat sink continuously. The problem is the PCB is cold, maar LED-lampen zijn nog steeds hot? Can anyone give me some advice.
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