Search found 17 matches

by doug12745
31 Aug 2019, 17:55
Forum: DipTrace PCB Layout
Topic: Net connectivity problem
Replies: 6
Views: 1358

Re: Net connectivity problem

In my post of yesterday, I stated that "Net Connectivity Errors" were dependant of whether or not the copper planes were visible. That apparently is not true. The net connectivity errors I experienced mysteriously just went away. I have no idea why the errors were there in large numbers and then jus...
by doug12745
30 Aug 2019, 14:02
Forum: DipTrace PCB Layout
Topic: Net connectivity problem
Replies: 6
Views: 1358

Re: Net connectivity problem

Alex, Discovered the answer to the Net Connectivity Errors question. If you are using copper pour inner planes for VCC and ground, these pours must be VISIBLE on the PCB layout page or a "broken" error will be reported. I would think that having the copper pour visible or hidden would be a visual ed...
by doug12745
30 Aug 2019, 12:38
Forum: DipTrace PCB Layout
Topic: Net connectivity problem
Replies: 6
Views: 1358

Re: Net connectivity problem

Alex, You state above that "reports that some nets are broken then they are really broken." Can you explain what "broken" really means? Can any additional information be found as to the reason "broken" is issued for a circuit or trace? I've examined most of these traces and they look good. However, ...
by doug12745
07 May 2019, 13:27
Forum: DipTrace PCB Layout
Topic: Bypass Caps and Power Planes
Replies: 1
Views: 729

Re: Bypass Caps and Power Planes

I found my answer in an app note from Texas Instruments (scaa082a.pdf). This document is very comprehensive and I recommend it as a reference for PCB layout people. ByPassCaps.jpg Poor placement of bypass caps occurs when the IC draws current through vias from the power and ground planes rather from...
by doug12745
06 May 2019, 13:47
Forum: DipTrace PCB Layout
Topic: Bypass Caps and Power Planes
Replies: 1
Views: 729

Bypass Caps and Power Planes

I have a general PCB layout question and hope that maybe the more experienced forum members might share their thoughts and experiences on this. My question: I am trying to place bypass caps across VCC and GND on my IC's. My PCB consists of two signal layers (top & bottom), and internal power and gro...
by doug12745
02 May 2019, 22:58
Forum: DipTrace Schematic Capture
Topic: Read about Templates?
Replies: 1
Views: 1335

Read about Templates?

I am unfamiliar with the term ”Templates” when used in the context of PCB Design and Layout.I see this term in used in some of the menu items in the schematic capture program. And I see a template appears when copying or saving a component to ”my library”. When hovering the mouse over the template i...
by doug12745
02 May 2019, 18:11
Forum: DipTrace Schematic Capture
Topic: Understanding Power & GND - Part 2
Replies: 5
Views: 2191

Re: Understanding Power & GND - Part 2

Finally got it, Tom. Thanks for your detailed 5-steps above. It was a strange situation. Prior to your last response, I removed inductor L1 completely leaving that circuit section open. The nets on both sides continued to change together even with L1 missing. I then decided to delete the wiring surr...
by doug12745
01 May 2019, 16:17
Forum: DipTrace Schematic Capture
Topic: Understanding Power & GND - Part 2
Replies: 5
Views: 2191

Re: Understanding Power & GND - Part 2

TomG, I tried your suggestion, however, the inductor I have placed evidently does not break the path into two separate nets. I named the power port before the inductor to "VBus" and then renamed the power port on the right to "VCC" (see below). Then I displayed the names of each net and they both sh...
by doug12745
01 May 2019, 12:29
Forum: DipTrace Schematic Capture
Topic: Understanding Power & GND - Part 2
Replies: 5
Views: 2191

Understanding Power & GND - Part 2

Related to a post I made a few minutes ago, I am having difficulty understanding how to specify two voltage sources and to separate them. In my project, I have a USB powered circuit. Power entering through the USB is +5V known as VBus. VBus is filtered through a ferrite bead and three capacitors the...
by doug12745
01 May 2019, 01:03
Forum: Bug reports
Topic: 4k monitor display bug
Replies: 10
Views: 6102

Re: 4k monitor display bug

If you are using Win10, there are two settings you can try. One under display settings lets you change the magnification and display resolution. This isn't ideal. Second, under fonts, you can change the sizes of various letterings. I played around with both and finally arrived at a reasonable settin...