pcb wizard

Capacitance modelCapacitance parallel high frequency characteristicsInductance ModelInductance characteristicsMirror image surface ConceptHigh frequency AC current loopThrough-hole (VIA) examplePCB Board Layer SegmentationBuck power supply: Power partial current and voltage waveformExample of a step-down power supply layout errorCircuit equivalent diagramPCB Trace-via Inductance estimationPlacement of pad (PAD) and bypass capacitorExample of step-down power supply typesettingExample of step-down

Most of the components are compiled from the Http://www.3dcontentcentral.cn/default.aspx website and modified according to the circumstances of the 3D module-soildworks source files (excluding the IC section), just create step format can be imported into the ad. Of course, 3D Library and step files I do not contribute, after all, it is not easy to tidy up, we do their own, clothed.Step file is too big, can only send Baidu cloud disk link, you need to download it yourself. Http://pan.baidu.com/s/

PCB highlights: August 5, 2014 13:04 Ground Line Design 1.1 classified analog, digital, shell, and system land 1.2 grounding mode: Single Point Grounding (F 1.3 increase the ground line, increase the running current, and increase the anti-noise capability> 3 m Electromagnetic compatibility: 2,. 1 adopts the #-shaped wiring, that is, vertical wiring mode and metal hole reducing are adopted to avoid long distance parallel. 2.2 wire width is suitable. S

generated with the schematic diagram. The flying line displayed on the PCB can greatly help layout and cabling. Do not use the X or Y keys to flip the component during component layout; otherwise, the component cannot be welded. One way to strip two-layer panels is: one side only follows the horizontal line and the other side only follows the vertical line. Do not add irrelevant overholes near the pad. In the design rule, the widt

setkernel_cap_t cap_effective, cap_inheritable, cap_permitted; int keep_capabilities:1; struct user_struct *user; struct rlimit rlim[rlim_nlimits];//process-related resource throttling information unsigned short used_math;// Whether to use the FPU char comm[16];//process running executable file name //file System Information int Link_count, TOTAL_LINK_ Count; Null if no TTY process is located in the control terminal, if the control terminal is not required, then the pointer is emptystruct

1. Purpose: Due to the many interfaces, the service side changes the interface, will cause the service to deactivate the update, causes the client not to use or the error,In this evaluation "Web Center" This server side, interface interface parameters increase or decrease, whether the client impact2. Evaluation content: Add single-value parameter to the service side, reduce the single value parameter of the server, MoD object increment parameter, MoD object to reduce the parameter,(The JSON data

field in the CSV is by the MongoDB default Fled3 field (Preferably the number of fields in the CSV, the number of field names to be imported, and the amount of field names that match the number of fields, in the same order) 7.MongoDB exported JSON, and then import, do not go in? Because the export JSON will be the primary key _id that is ojbectid, output together, if you import the database again, there will be a primary key conflict Best solution: Import to another collection, and then t

Create FUNCTION [dbo].[splittable](@s varchar(Max),--string to be split@split varchar(Ten)--Data Separators)RETURNS @re TABLE(IDint IDENTITY(1,1), colvarchar(Max))--Create a temporary table save the split character asBEGIN DECLARE @splitlen int SET @splitlen=LEN(@split+'a')-2 while CHARINDEX(@split,@s)>0 BEGIN INSERT @re VALUES( Left(@s,CHARINDEX(@split,@s)-1)) SET @s=STUFF(@s,1,CHARINDEX(@split,@s)+@splitlen,"') END INSERT @re VALUES(@s) RETURNENDEx

Tags: number of calls to write list key CLR Bubuko Nat Object DivUsing the CLR to write functions: scalar functions, table-valued functions are well understood, if the aggregate function is not so well understood,Here is a description of the CLR function, in fact, the key is to explain the aggregate functionUsing the CLR to write aggregate function keys is to understand how the CLR interacts with SQL for data,The first step: the function of the functions in the aggregation functionStep Two: aggr

problems that were not solved before, At that time the card in the user interface to select the direction of the stamp hole increased (up and down)and the actual position of the stamp hole before the logic and non-judgmental jam, resulting in a little progress.looking back, it was simple,make a note of this point. 1. Vertical line definition: 80--100 or 260--2802 horizontal line definition: 3. Two form centers as a central dividing line,4. Calculate the angle of the split line to determine wheth

Tags: no implementation color 9.png src is graphics col imageIn the Engineering CAM processing Circular panel is a headache problem, the need for engineers to design their own cutting edge to meet the board and the board after the Gong board side no internal angle, otherwise it will affect the Assembly 1. Original single PCS circular board In addition, if you do not use a stamp hole connection, the mining v-cut connection must be cut-edge treatment Two. For trimming the graphics after processi

Tags: har get dynamic must cut EXE set tput val I. SQL cross-Library Execute SQL Get return value DECLARE @Dblink nvarchar( -) DECLARE @sql nvarchar(MAX) DECLARE @layer INT SET @Dblink = 'P2.fp_db.dbo.' Select @sql='SELECT top 1 @layer =layer from' + @Dblink + 'mktxhglb WHERE pdctno="'at00101ca0" " execsp_executesql@sqlN'@layer int Output',@layerOutputSELECT @layer Use: sp_executesql Rule requirements: 1. require dynamic SQL and dynamic SQL parameter list must be nvarchar 2. The parameter li

}, stringsplitoptions.removeemptyentries); ListNewList(); for(inti =0; I ) {Resultdatalist.add (NewResultdata (i +1, Strs[i])); } returnresultdatalist; } /// ///Populating data Methods/// /// /// /// Public Static voidSqlsplit_fillrow (Object obj, outSqlInt32 SerialNumber, outSqlString StringValue) {Resultdata Resultdata=(resultdata) obj; SerialNumber=Resultdata.serialnumber; StringValue=Resultdata.stringvalue; } /// ///D

Address: http://blog.ednchina.com/ishock/190136/message.aspx CycloneIII design wizard-Article 1. chip selectionThe company began to use the CycloneIII chip, so it intends to read the official documentation of Altera, AN466: Cyclone III Design Guidelines, and write a series of blog posts. According to the organization framework of the article, in addition to summarizing the content of the original document, I will also add a lot of my own experiences.

Recently, due to project needs, I have designed and developed a Windows Forms-based wizard Development framework that I have now open up and released a NuGet installation package. One of the more embarrassing things is that when I released the NuGet installation package, I found that there was already a. NET, which is called the Microsoft Visual Studio Wizard framework. I did not delve into it, just from th

I used to have a miniature portable electronic address Book. I always thought it was good until one day it stopped running. The person who sold the product was unable to retrieve my contact address list, but proposed a replacement. That's when I learned the importance of the data. This shiny little invention is nothing compared to the data stored in it. In the first installment of this series, I introduced the development environment for the Eclipse plug-in and developed a simple plugin. In the

Note If you are using the"Delphi.7.second. Edition. v7.2"Version, due to simplified optimization, the dialog wizard and Application Wizard wizards are removed. To try this wizard, installFull Delphi7. Delphi has two wizards to guide users to create applications. The dialog wizard (dialog box

Eclipse Wizard to implement dynamic pages and tree topologies This article first analyzes the implementation of the Eclipse Wizard mechanism, including page loading and logoff, page Verification, wizard execution Process, wizard target operation, and so on. Currently, the content of the Eclipse

Background introduction to the WebSphere Portal Configuration Wizard The Configuration Wizard in the WebSphere Portal has always been a favorite tool for users to help simplify the configuration process by manually modifying a large number of configuration parameters in the configuration file, and now just follow the configuration Wizard to fill in the simple in

Altium Designer uses the wizard to paint the package library The methods have been summed up very well by the predecessors. Cite the results of the predecessors, in case the time is long forgotten. First of all, I would appreciate the work of our predecessors.For example, Altium designer6.9 draws a BTS7960 package.First, open Altiumdesigner, first build a package library file.Then select TOOLS--IPC Footprin