Where to set Protel 995e before PCB wiring

Before wiring, we usually need to set the wiring rules. The general settings include the following items. Now we take the setting in prote1 as an example to briefly introduce it. (1) Safe spacing setting. The setting of safety distance corresponds to the clearance constraint item in routing, which specifies the distance that must be […]

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The influence of wiring width on PCB wiring

In PCB wiring, this situation often occurs: when routing through a certain area, due to the limited wiring space in this area, thinner lines have to be used, and after passing through this area, the lines will return to the original width. The change of line width will cause impedance change, so reflection will occur, […]

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Some matters needing special attention in PCB wiring

PCB wiring is very important in the whole PCB design, how to achieve fast and efficient wiring, and make your PCB wiring look tall, is worth studying. Sorted out the PCB wiring needs to pay attention to the seven aspects, come to fill the gaps quickly! 1. Common ground processing of digital circuit and analog […]

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Eight aspects to be checked after PCB wiring design

PCB design refers to the design of printed circuit board. The design of printed circuit board is based on the circuit schematic diagram to realize the functions required by the circuit designer. The design of printed circuit board mainly refers to the layout design, which needs to consider the layout of external connections, the optimal […]

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Why avoid sharp angle and right angle wiring in PCB wiring

If it is a RF line, if it is a right angle at the corner, there will be discontinuity, and discontinuity will easily lead to the generation of high-order modes, which will affect the radiation and conduction properties. If the RF signal line is right angled, the effective line width at the corner will increase, […]

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Analysis of PCB wiring rules and skills of high frequency circuit

High frequency circuits often have high integration and high wiring density. The use of multilayer board is not only necessary for wiring, but also an effective means to reduce interference. In pcblayout stage, reasonable selection of a certain number of layers of PCB size can make full use of the middle layer to set the […]

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PCB layout planning and design skills

PCB (printed circuit board), Chinese name for printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, is the support of electronic components, is the provider of electrical connection of electronic components. Because it is made by electronic printing, it is called “printed” circuit board. With the requirement […]

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Analysis of three kinds of wiring methods in PCB wiring

Layout is one of the most basic work skills of PCB design engineer. The quality of routing will directly affect the performance of the whole system, and most of the high-speed design theory will be realized and verified by layout. Therefore, wiring is very important in high-speed PCB design. Next, we will analyze the rationality […]

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What is the effect of right angle routing on signal transmission

Right angle wiring is generally avoided in PCB wiring, and it has almost become one of the standards to measure the quality of wiring. How much impact will right angle wiring have on signal transmission? In principle, right angle routing will change the line width of transmission line, resulting in the discontinuity of impedance. In […]

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Analysis of disassembly of low frequency electrotherapy instrument

Find the right solution, disassembly is very simple. This fish leaping low-frequency electrotherapy instrument needs to be disassembled from the front “tianlinggai”. During the disassembly process, an electric iron is needed to remove the battery and the connection interface of the electrotherapy piece from the main board. The other parts are disassembled step by step, […]

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