In general, the direction of wave soldering on the printed circuit board should be parallel to the long side of the printed circuit board and perpendicular to the short side of the printed circuit board.
The two long edges of PCB should be parallel, and the non-parallel edges should be added to facilitate the equipment transmission in the production and processing process.
The layout of printed circuit boards using automatic plug-in technology should meet the technical requirements of automatic plug-in machines.
Experienced power developers know that EMI suppression in the PCB design process can save a lot of time for EMI suppression design in the final process to the greatest extent. This article will explain to you the specification steps in PCB EMI design, int
Wiring is the most important process in PCB design. This will directly affect the performance of PCB board. In the process of PCB design, wiring generally has such three levels of division: the first is the cloth, the most basic requirements of PCB design
High speed digital circuit analysis generally only deals with multilayer PCB with complete plane layer. 2D field extraction analysis is used to consider only signal reflux in adjacent planes, and the hole is only treated as R-L-C of a lumped parameter.
The key to the success or failure of RF circuit PCB design is how to reduce the circuit radiation, so as to improve the anti-interference ability, but in the actual layout and routing of some problems are in conflict with each other, so how to find a comp
For the signal transmission between the integrated blocks on a printed circuit board, the situation of Td Trd should be avoided. The larger the printed circuit board, the less fast the system speed
For the signal transmission between the integrated blocks on a printed circuit board, the situation of Td Trd should be avoided. The larger the printed circuit board, the less fast the system speed
For the research and development of switching power supply, PCB design occupies a very important position. A poor PCB, poor EMC performance, output noise, weak anti-interference ability, even the basic function has defects.
Characteristic impedance is related to PCB wire layer, PCB material (dielectric constant), wire width, distance between wire and plane and other factors, and has nothing to do with wire length.
ESD sensitive circuits should be placed near the center of the circuit, so that other circuits can provide some shielding for them.
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