pcb wizard

1. File-->page SetupPrinter paper A column is the printing paper settings, no longer wordy.The main is the scaling column: ScaleMode selection: ScaledprintThe following scale fills 1, which represents 1:1 of the proportional print. such as 1:2, then click the Advanced tab in Figure 1 to enter the print content settings.Under the Printoutlayers project, remove the top overlay (right-click-->delete)The following is shown in Project Setup 2.I do the general is a single-layer board, so, generally on

The actual results of the PCB effect (note slot edge) in the different layers of the hole shape are drawn in different layers of the slot shape (note the slot edge)Many friends asked in the use of Altium designer PCB design, want to open a slot on the board or dig a hole how to operate, is the use of keep-out layer or mechanical layer, today, here to answer, both in the actual operation are used (and large

Last Update Time: 2010-02-06 09:56:45 There is a horn socket in the Red Circle : After the memory is unplugged, there is still a layer of stuck Plastic Parts blocking the circuit board near the horn Outlet Take a picture of the opening part of the plastic slice as follows: Should it be a BIOS battery? I split the black plastic hard shell at the place where I inserted the headset. Can I see it (the next two pictures)? I wonder if this will affect the speaker's voice? Th

special instructions, in addition to the shape to give an effective shape, such as the inner groove, and the inner groove at the intersection of the outer shape of the line should be deleted, no leakage of the groove, design in the mechanical layer and the keepout layer groove and hole is generally based on the production , if you need to process into a metal hole, please special remarks.3, if the most prudent way to do metallization slots is to put together multiple pad, this practice must be

 Author: Wang Huidong, a hi-tech team member In the "Skin of the PCB," the article, we have proposed when the thickness of the plate in 1.6mm and above, how to avoid the use of false eight layer of the stack, resulting in increased PCB costs. I feel the answer is very enthusiastic ha, it seems that the problem is still more typical. Would like to intercept some of the answers put here, but the relations

Formula for propagation delay of cabling in PCB The first half is information from altera. The propagation latency (tPD) is the time required to transmit a signal from one point to another. Transmission Line propagation delay is a function of the relative dielectric constant of materials. Propagation delay of micro-Strip Layout You can use formula 5 to calculate the propagation delay of the strip layout. Formula 5: Delayed propagation in the line

Address: http://www.sig007.com/usesoft/74.html Schematic Design Software: orcad can be used, and supports a large number of netlist, which is basically industry standard. PCB layout Software 1. Protel, now push alicloud designer. The mainstream of low-end design in China is basically useless in foreign countries. It is easy to learn and suitable for beginners.High Computer Configuration Requirements. People who use Protel in China still have

General principles of PCB Board component layout:The general principles that designers need to follow in the layout of PCB boards are as follows.(1) Components preferably single-sided placement. If you need to place components on both sides, placing pin components on the bottom layer (Bottom layer), it is best to place the components one-sided. It is possible to cause the circuit board is not easy to place,

Circuit Design: This is a very big concept, from the voltage intensity can be divided into strong electric circuit design and Weak Current Circuit Design; from the design tool can be divided into manual drawing and electronic auxiliary design, the circuit types can be divided into analog circuit design and digital circuit design. Icdesign: The IC Design refers to the chip design, that is, the design of the circuit on a crystalline silicon chip, which requires a high process and technology. Th

Linux drawing schematic and PCBThe famous Allegro and classic Protel 99SE under Windows are not supported by Linux operating systems, and it is unavoidable to look at schematics and PCBs for Linux driver development.There are three general ways of doing this:1. Host uses Windows system, Linux installed in virtual machines such as VMware so that you can use the software under Windows to see the schematic and PCB;2. In turn, a Windows virtual machine is

Label: show only one layer1 SHIFT + s this shortcut can highlight the current layer and make other layers gray, see: 2. Hide a specified layer In the lower-right corner of the figure, right-click and an option bar will pop up. Select hide layers to select the layer you want to hide. 3. Right-click any position in the PCB diagram of the specified layer in view deployments and choose Options> boardlayers colors. On the board lay

When walking multilayer board, often need to hit the hole, then how to classify the hole? and look down.(1) Through-hole: this hole through the entire circuit board, can be used for internal interconnection or as a component of the installation of the locating hole (for connecting layer; Creating a drilling file, punching on the PCB and electroplating in the hole, usually much larger than the signal line);(2) Buried hole: refers to the printed circuit

1 Open WindowPADS inside open window is directly put copper skin in the solder layer inside is open window, but also can put a pad so fast and convenient is open window. Generally choose to put a pad is not prone to error.2 when there is an error, we need to turn all the layers open. There may be some network to pull the other layer, but the network is not connected. Therefore, in the detection of PCB connectivity, will be error. This time you need to

In the previous section, the design steps for PCB principles are described in one example, and this section further introduces some of the techniques in the design.Shield : place->directive (instruction)->compile mask to block block diagrams that are not usedAdd rule : Place->directive->paremeterset You can add PCB design rules to your schematic diagramEg: Add a patemeterset, as follows:650) this.width=650;

, 300mV noise needs to be filtered and attenuated to 50mV, which means that the magnetic beads to be divided into 250mV, assuming the load 50Ω,RAC/RL = 250/50, where RL = 50ω, get Rac = 250Ω;(2) power supply rated current 300mA, derating coefficient according to 0.75, then select the minimum rated current not less than 300ma/0.75= 400mA of magnetic beads;(3) The IC supply voltage must not be less than 3.0V, then the maximum voltage drop on the DC resistance RDC on the bead should be less than 0.

ring and the magnetic beads should be used. Their resistance to the high-frequency components in the line is about 10 to several hundred Ω, so it does not play an obvious role in the high-impedance circuit, it will be very effective in Low-Impedance Circuits (such as power distribution, power supply, or RF circuits. Iv. ConclusionFerrite is widely used in EMI control because it can degrade at a high frequency and make the low frequency pass through without any obstacles. Magnetic rings/magneti

Summary of PCB multilayer Design Reprinted: PCB multi-board design suggestions and examples (, 12) Design requirements: A. The component plane and welding plane are complete ground planes (shielded ); B. There is no adjacent parallel wiring layer; C. All signal layers should be adjacent to the ground plane as much as possible; D. The key signal is adjacent to the formation and does not span the

Install the Open Source PCB printed circuit board design software Fritzing in Ubuntu Fritzing is a set of software for designing Printed Circuit boards (Printed Circuit Board), especially for designers, artists, researchers and amateur players. Like Processing and Arduino, Fritzing developers design this software in the spirit of openness, simplicity, and sharing. Fritzing is a simple and easy-to-use software operation interface, this allows users to

wiring is initiated from the most complex devices connected on a single board. The most densely connected area on a single boardStart cabling. Loop minimum rule, that is, the signal line and its return loop area to be as small as possible, the smaller the ring area, external radiationThe less it gets, the smaller the interference from the receiving world. For this rule, in the ground plane division, we should consider the ground plane and the heavyTo signal the distribution of the line, to p

Tags: class Bubuko sel info varchar into IMA handle mergeOne of the blog posts in the "PCB MS SQL sorting application---adjacent data and the same merge processing" This article should also be used in conjunction with the same technique, to achieve the adjacent data interval value solutionExample:Original data: Before processingCalculate interval value: After processingSQL Code ImplementationDECLARE @table Table(RowNoINT, FlowtechnameVARCHAR( -))INSER