Linked Questions

18
votes
6answers
28k views

PCB 90 degree angles [duplicate]

Not a dup of which barely attends to the technical reasons for or against using 90 degree routes. As a hobbyist who's enrolling in an EE program in the fall, should I just get in the habit of ...
0
votes
1answer
113 views

PCB Trace Orientations [duplicate]

When inspecting a PCB earlier today it occurred to me that all traces you find on modern PCB's are confined to 45 degree increments with respect to the (typically square) board edges. What is the ...
39
votes
9answers
8k views

Can an FPGA design be mostly (or completely) asynchronous?

We had a very short FPGA/Verilog course at university (5 years ago), and we always used clocks everywhere. I am now starting out with FPGAs again as a hobby, and I can't help but wonder about those ...
39
votes
1answer
12k views

Sharp corners in PCB traces

Why does a typical PCB always has rounded tracks? What harm can a sharp edged PCB track can cause? Please explain!
10
votes
5answers
3k views

PCB routing T joint alternative

Whenever I come across this situation: I feel a strong urge to make a T - joint like this: However 90 degrees are usually frowned upon. As such what's a better alternative to this T-joint? If I ...
8
votes
3answers
3k views

Why are DIY PCB components placed at right angles?

I'm learning PCB CAD. I want to know why components seem to be placed at right angles and orthogonal to the PCB (assuming that it's rectangular). Since the traces are secondary to the placement of ...
1
vote
4answers
2k views

Feedback on PCB layout for Half-Bridge

This is my first ever PCB layout design. I did this in EAGLE and I'm looking for some feedback. Note that this is my first ever PCB layout so I don't know any "rules of thumb". The circuit is simply a ...
2
votes
1answer
340 views

If I have an obtuse trace, will the complementary acute angle cause issues?

I was wondering if the complement of an obtuse trace would cause issues when routing, would it be better to have a 90 degree trace or one that comes in like this? or 90 degrees EDIT: Added a third ...
1
vote
1answer
236 views

What signal loss can I expect by routing a 20 dBm 900MHz signal in a 90° curve in a PCB?

I would like to change a PCB to add a (not straight angle) 90° curve in a 900MHz signal path. From my understanding my PCB designer is simply using the correct impedance, routing the signal on the ...
2
votes
0answers
166 views

Text LCD doesn't function normally on mixed-signal PCB?

I have power supply, analog part and microcontroller part on one 2-layer PCB board, very simple. The LCD is on the microcontroller part. It works normally when I have it on a separate board with only ...