4. A possible coupling of magnetic field lines, similar to figure 1. To sum up, the cloth board should follow the following principles: Complete grounding should be ensured below the lead. Sensitive leads should be arranged vertically. If leads must be parallel, ensure adequate spacing or use protective wires. Grounding via The main problem with [...]
Then I'll find out why. I'll look at the board. Want to want to go, should be no problem! Then go into meditation and sleep at night thinking about it. The next day, suddenly thought of a problem, FLASH is not as long also have a problem. To solve the problem There's no reason FLASH [...]
[5G commercially opened, communication circuit board is remarkably elastic] PCB circuit board is divided into seven categories by application: communication, computer, consumer electronics, industrial control medical, automotive electronics, aerospace and packaging substrate. Thanks to the construction of 3/4g communication network and the wide application of automotive electronics, the PCB output value in the communication and [...]
There are many ways to solve EMI problems. Modern EMI suppression methods include EMI suppression coating, EMI suppression parts and EMI simulation design, etc. Starting from the most basic PCB layout, this paper discusses the role and design skills of PCB layering and stacking in controlling EMI radiation. Power busbar The jump of IC output [...]
The environmental protection mechanical treatment method is to use the circuit board recycling equipment to deal with these waste circuit boards. The mechanical equipment solution method is to crush the waste circuit board into fine particles, and then realize the separation method according to the difference in physical properties, which generally includes crushing, grinding, sorting [...]
I don't know if you have encountered the kind of copper foil particularly thick circuit board, soldering iron when the tin does not melt, the iron on the temperature of the moment to be scattered by the copper foil. Long time of heating can only leave a lump of small tin beads on the pin, [...]
For the setting of PCB wiring line width, two major issues should be considered: One is the amount of current flowing through it. For example, for the power line, we need to consider the current flowing through the circuit when it works. If the current flowing through is large, the line should not be too [...]
How to see the PCB anode and cathode 1. Large-area copper foil line is ground wire. The ground copper foil is usually thicker than the normal wire, and is connected everywhere on the circuit board. 2. The metal shell of components is ground wire. Some components have metal enclosures, such as switchgear, that enclose grounding [...]
In order to reduce crosstalk between lines, the spacing between lines should be large enough. When the spacing between the center of lines is not less than 3 times the width of lines, 70% of the electric fields will not interfere with each other, which is called the 3W rule. To achieve 98 percent of [...]
Six things to consider when passing a PCB schematic to layout. All the examples mentioned were developed with the Multisim design environment, but the same concepts apply when using different EDA tools. Initial schematic transfer Device information, meshes, layout information, and initial wire-width Settings are also transferred during the transfer of the schematic to the [...]