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求教什么是平衡点?
2019-03-27 11:26
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电路设计
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本帖最后由 兵长一米六 于 2014-9-11 15:01 编辑
pcb中的平衡点是什么,它有什么作用
在allegro软件中,该如何添加平衡点呢? 求大神告知 此帖出自
小平头技术问答
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5条回答
qwqwqw2088
1楼-- · 2019-03-27 19:25
< 平衡点是软件添加的么,可能是我理解错了
背一段书:选择PCB板材必须在满足设计需求和可量产性及成本中间取得平衡点。设计需求包含电气和机构这两部分。通常在设计非常高速的PCB板子(大于GHz的频率)时这材质问题会比较重要。例如,现在常用的FR-4材质,在几个GHz的频率时的介质损(dielectric loss)会对信号衰减有很大的影响,可能就不合用。就电气而言,要注意介电常数(dielectric constant)和介质损在所设计的频率是否合用。
加载中...
兵长一米六
2楼-- · 2019-03-28 01:04
精彩回答 2 元偷偷看……
加载中...
爽肤水
3楼-- · 2019-03-28 04:06
地方和风格和你发个和你
加载中...
asasq22
4楼-- · 2019-03-28 08:24
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hgy10086
5楼-- · 2019-03-28 13:40
我也想知道 楼主搞懂了吗?分享点资料呗
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背一段书:选择PCB板材必须在满足设计需求和可量产性及成本中间取得平衡点。设计需求包含电气和机构这两部分。通常在设计非常高速的PCB板子(大于GHz的频率)时这材质问题会比较重要。例如,现在常用的FR-4材质,在几个GHz的频率时的介质损(dielectric loss)会对信号衰减有很大的影响,可能就不合用。就电气而言,要注意介电常数(dielectric constant)和介质损在所设计的频率是否合用。
阳光软件园
所有软件资料都随时更新,急需软件可以去看看,基本上能找到你想要的!
zhangqg.51.net
cax2one.3322.org
e-mail:
even2one@vip.sina.com;even2one@sohu.com;even2one@tom.com
将以上任意链接连接起来输入IE 窗口即可进入网站
下面是一部分软件,更多软件在我们的软件列表,如需要请到列表中去找!
ACTRAN v14.0 Win32_64.&.Linux-ISO 3DVD
Agilent.IC-Cap.v2008-ISO 1CD
AMESim/AMESet R9 1DVD(液压传动系统高级建模与仿真环境)
AMETank v7.6 Windows 1CD(储罐设计软件)
Analytical.Graphics.STK.Pro.v10.0 2DVD(先进的宇宙航天分析工具,专为航天和防御专业人员设计)
AnyCASTING.v4.0.Win32_64-ISO 1CD
ASAP Pro 2009 V1R1 1CD
ASAP 9CD(正版光源库)
Aspen Technology AspenONE Suite v8.6 Win7_8-ISO 3DVD
AutoForm R2 Plus v4.4 Final-ISO 1DVD
AVEVA Marine 12.1 SP2.2 1DVD(最先进的船舶设计软件)
AVL.Workspace.Suite.2013.0.Win32_64.&.Linux-ISO 3DVD
AVL CRUISE 2011.3 Win32_64-ISO 1CD
AVL.Fire.2013.0.Win32_64.&.Linux32_64-ISO 4DVD
AVL.SWIFT.v3.1.1-ISO 1CD
B&K PULSE v12.5-ISO 2CD(振动分析软件)
Bentley AutoPIPE Vessel (Microprotol) V8i v33.01.00.11 1CD
CAESAR II 2013 R1 v6.10 WinXP_7-ISO 1DVD(管道应力分析软件)
CAM-TOOL v4.0-ISO 1DVD(简/繁体中文版)
CarSim v8.1 Build 8141-ISO 1CD
CFDRC v2008-ISO 1CD
Code-V 10.4 SP1-ISO 1CD
Coade CADWorx 2014-ISO 1CD
CFturbo v9.2.5 1CD
Design Data SDS/2 v7.025 1CD
Deform.2D/3D.v10.2-ISO 1CD
DNV Phast v6.7-ISO 1DVD(石化事故后果模拟软件)
DNV Phast Risk v6.7-ISO 1DVD(原名Safeti, 现在更名为Phast Risk)
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iMOLD v12 SP0-ISO 1CD(solidworks专用模具设计软件)
Intec.Simpack.v9.6.Win32_64.&.Linux32_64-ISO 4CD
Intergraph PDS v2011-ISO 1DVD
Intergraph TANK 2014 SP1 v6.00.01-ISO 1CD
Jason v8.3 Win32-ISO 1DVD
JMatPro v7.0 1CD(材料性能模拟软件)
KBC Petro-SIM Suite v4.0 SP2-ISO 1CD
LensVIEW 2003.1-ISO 1CD
LightTools v8.1.0 RC1 Win32_64-ISO 2DVD(光学软件)
LMS Raynoise v3.0 1CD(大型声场模拟软件系统)
Lucidshape v1.72 1CD
MAGMASOFT v4.4-ISO 1CD(完全破解版,铸造仿真软件)
Maxsurf v13.01-ISO 1CD(计算机辅助船舶设计和建造软件)
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TruckSim v8.1-ISO 1CD
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Winsim.Design.II.v9.31 Working 1CD
WorkNC G3 v21.0-ISO 1CD(多语言版)
ZEMAX v2009.06.09 1CD
华铸CAE 10.0 铸钢 1CD
压力容器计算软件SW6-2011 单机版 1CD
Latest crack software ftp download
cad/cam/cae/eda/optical crack ftp download software
Part of Software
----------------------------------------------------------------------
Do not put any replies here. WE will not check any replies here on the forum.
If you are interested in or want to get more software list ,please go
cax2one.3322.org
zhangqg.51.net
e-mail:
even2one@vip.sina.com;even2one@sohu.com;even2one@tom.com
AUTOFORM V4.1.1 ISO 1CD
SURFWARE.SURFCAM.V2007
GIBBSCAM.2007 V8.9
DP.Technology.ESPRIT.2008.Plus 1CD
MOLDPLUS_METRIC_V9.2_FOR_MASTERCAM X2
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solidcam_v2008 FOR SOLIDWORK
icam.compost.v17
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IMOLD 2008 FOR SOLIDWORKS
CGTECH.VERICUT.V6.3
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K-MOLD V9.5
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Nemetschek.PlanDesign.2006.Multilanguage
DEPOCAM 2006
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VERO MACHINING STRATEGIST 8.027
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