Remember when I first did PCB Layout, multi-layer board prototyping costs were very high, and the delivery time was about seven or eight days. Due to cost and time considerations, I often only considered using double-sided boards for routing. Then, holding many design rules that would often “conflict” with each other or experience-based rules circulating … Read more
Copper foil is the main material used in PCBs, primarily for transmitting current and signals. The copper foil on a PCB can also serve as a reference plane to control the impedance of transmission lines or as a shielding layer to suppress electromagnetic interference. During the PCB manufacturing process, characteristics such as the peel strength … Read more
PCB Copper Pour refers to the area filled with copper in a PCB layer. This layer can be on the top, bottom, or any internal layer of the PCB, and PCB copper pour can be used for grounding, reference, or to isolate specific components or circuits from the rest of the elements on that layer. … Read more
(There are benefits at the end of the article, don’t miss out!) As electronic devices develop towards higher performance and smaller sizes, the precision and performance requirements for PCBs are also increasing. High multilayer PCBs can provide more routing layers, allowing for more complex and dense circuit designs, thus meeting the demands for high-frequency and … Read more
In the consideration of PCB EMC design, the first aspect involves the setting of layers; the number of layers on the board consists of power, ground, and signal layers. In product EMC design, in addition to the selection of components and circuit design, good PCB design is also a very important factor. The key to … Read more
DC-DC Remote Feedback Design for RK3588 Core Power Supply The 100ohm feedback resistor needs to be placed close to the output capacitor. One end of the resistor connects to the DC-DC output capacitor, while the other end connects to the VOUT feedback pin of the PMIC, and simultaneously to the farthest load of the same … Read more
While browsing through old items, I found a second-hand router I bought back in college. It can be seen that its condition is already quite worn, reminiscent of battle damage. After all, it was a second-hand item bought many years ago, and I couldn’t bear to throw it away despite moving multiple times, which has … Read more
Author: Xiaoyu, Typesetting: Xiaoyu WeChat Official Account: Chip Home (ID: chiphome-dy) 01 CPU vs FPGA It vividly expresses the computational logic of CPU and FPGA. The CPU tends to be multifunctional and usually executes instructions serially. Although it has multiple cores, each core still executes in a serial manner, the design of the CPU is … Read more