Re: [PEDA] GND Plane Neck
So is there nobody who knows how to do this? Tim -Original Message- From: Tim Fifield [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 10, 2002 11:17 AM To: Protel EDA Form Subject: [PEDA] GND Plane Neck I have 3 GND planes (3 different net names on the sch) I need to neck together on a PCB and cannot figure out how to do it on the schematic and PCB nicely, without errors, and without placing a zero ohm resistor down. Does anybody know how to do this on the schematic and PCB? I seem to recall a thread about a virtual short; is that what I'm looking for? Tim Fifield, CET International Rectifier - Automotive * Tracking #: 968D2A22F110544F910DCAC8AE1AB70A02F9C6E4 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] GND Plane Neck
Hi, In the design rules 'Other' section, you can allow short circuits between different nets. This should allow you to join the planes together wihtout creating errors. Hope this helps. Paul -Original Message- From: Tim Fifield [mailto:[EMAIL PROTECTED]] Sent: 11 September 2002 13:31 To: Protel EDA Forum Subject: Re: [PEDA] GND Plane Neck So is there nobody who knows how to do this? Tim -Original Message- From: Tim Fifield [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 10, 2002 11:17 AM To: Protel EDA Form Subject: [PEDA] GND Plane Neck I have 3 GND planes (3 different net names on the sch) I need to neck together on a PCB and cannot figure out how to do it on the schematic and PCB nicely, without errors, and without placing a zero ohm resistor down. Does anybody know how to do this on the schematic and PCB? I seem to recall a thread about a virtual short; is that what I'm looking for? Tim Fifield, CET International Rectifier - Automotive * Tracking #: 968D2A22F110544F910DCAC8AE1AB70A02F9C6E4 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] GND Plane Neck
Paul, Emanuel, I like both of those ideas! I have a few questions. 1. With regards to the design rule. If I allow the nets of the three GND planes to be able to short together, would the neck be the last thing I place so the polygons don't completely short when repouring. (Assuming the corners of the polygons are placed together) Now that I think about it I could just draw them so they don't touch when repouring. 2. With the Lomax Virtual Short. (I like this idea better because it allows me to place a component on the schematic.) Will the board house have a problem with this? Will they just separate the pads by the standard minimum spacing? Perhaps I should make a note on a drawing somewhere indicating that I actually want the planes shorted. Well, I think I answered my own questions but I open for thoughts/comments. Tim -Original Message- From: Emanuel Zimmermann [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 11, 2002 9:57 AM To: Protel EDA Forum Subject: Re: [PEDA] GND Plane Neck Tim, Sorry for missing the original post, but theres a lot of traffic on this forum that makes me not reading every letter! In fact its a job for the Lomax virtual short. Abd introduced this idea of a two pin SMD component with its pads nearby touching each other (separated by say 0.01mil) and a design rule allowing this small gap just for this component a while ago. I personally prefer the zero ohm resistor because it allows the bare board be tested with separated nets guaranteeing a star point topology in your grounds. With the Lomax virtual short you'll loose this ability! Hope this helps, Emanuel Tim Fifield wrote: So is there nobody who knows how to do this? Tim -Original Message- From: Tim Fifield [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 10, 2002 11:17 AM To: Protel EDA Form Subject: [PEDA] GND Plane Neck I have 3 GND planes (3 different net names on the sch) I need to neck together on a PCB and cannot figure out how to do it on the schematic and PCB nicely, without errors, and without placing a zero ohm resistor down. Does anybody know how to do this on the schematic and PCB? I seem to recall a thread about a virtual short; is that what I'm looking for? Tim Fifield, CET International Rectifier - Automotive * Tracking #: 968D2A22F110544F910DCAC8AE1AB70A02F9C6E4 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -- MPL AG www.mpl.ch Emanuel Zimmermann [EMAIL PROTECTED] Manager RD Phone: +41 (0)56 483 34 34 Taefernstrasse 20 Fax: +41 (0)56 493 30 20 CH-5405 Daettwil * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] GND Plane Neck
Tim Fifield wrote: Paul, Emanuel, snip Well, I think I answered my own questions Hmmyes!) BR Emanuel * Tracking #: 5AA09DBFCD7D564ABB2023E091BAFC1F95CD736D * -- MPL AG www.mpl.ch Emanuel Zimmermann [EMAIL PROTECTED] Manager RD Phone: +41 (0)56 483 34 34 Taefernstrasse 20 Fax: +41 (0)56 493 30 20 CH-5405 Daettwil * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] GND Plane Neck
Paul, the short circuit design rule does not work, this was established through a number of users many moons ago. Sincerely, Brad Velander. Lead PCB Designer Norsat International Inc. Microwave Products Tel (604) 292-9089 (direct line) Fax (604) 292-9010 email: [EMAIL PROTECTED] http://www.norsat.com Norsat's Microwave Products Division has now achieved ISO 9001:2000 certification -Original Message- From: Paul Holland [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 11, 2002 5:54 AM To: Protel EDA Forum Subject: Re: [PEDA] GND Plane Neck Hi, In the design rules 'Other' section, you can allow short circuits between different nets. This should allow you to join the planes together wihtout creating errors. Hope this helps. Paul * Tracking #: 51F9C37DDE39EB4F8DC508C203DB99D87A889174 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
