Due to the repeated impacts of the pandemic and various external factors, the industry continues to be sluggish, intensifying competition, and more and more brands and dealers have been forced to exit. Especially in the terminal market, demand has shrunk, with both store traffic and sales experiencing a significant decline, marking a harsh winter. Coupled … Read more
1. PCB Protection Design Principles• Shielding Measures: Use metal enclosures, conductive coatings, or shielding covers to shield the equipment, reducing electromagnetic radiation and interference.• Grounding Design: Reasonably layout a low-impedance grounding network to avoid ground loop interference, ensuring the device grounding terminal is well connected to the earth.• Layout Optimization: Separate analog, digital, power, and … Read more
Abstract In today’s world, information technology is developing rapidly, and modern people are constantly exposed to the Internet. The advancement of computer technology promotes social progress, and the development of computer networks enables information sharing to be widely used in fields such as finance and trade. Computer networks have characteristics such as open architecture. However, … Read more
Mathematics in War: Military Cryptography! After a year of systematic and specialized study, as a student majoring in Mathematics and Applied Mathematics, I have never stopped exploring the mysteries of mathematics. Taking advantage of summer social practice, we walked together, embarking on the door of cryptography with great interest. Throughout history, the application of mathematics … Read more
1. Layout 10 Rules for Component Layout: 1. Follow the principle of “large first, small later, difficult first, easy later,” meaning important circuit units and core components should be laid out first. 2. The layout should refer to the schematic diagram, arranging major components based on the main signal flow direction of the board. 3. … Read more
1. Reasons Why the Microcontroller Cannot Download Programs 1. Check if the hardware connections are correct, and if the power supply is connected properly. On the correct basis, is there any broken line on the board? Pay attention to whether P1.5, P1.6, P1.7, the RST pin, and the download interface are connected correctly. By the … Read more
Solder Bridging An excess conductive pathway formed by solder between wires. The bridging phenomenon is a type of soldering problem in PCBs, referring to the excessive solder that causes PCB pads to connect together. Unlike tombstone defects, bridging is not easily detected. However, it can cause fatal damage to the PCB. Tombstone refers to a … Read more
V-cut During PCB splicing, the V-shaped dividing line between two single boards and between a single board and the process edge forms a “V” shape; it is called V-cut because it is broken and separated after soldering. Purpose of V-cut The main purpose of designing V-cut is to facilitate operators in separating the boards after … Read more
PCB design is both a science and an art. There are many technical specifications related to trace width, layer stacking, schematics, etc. However, when it comes to the artistic aspects of component placement in PCB design, the issue becomes interesting. In fact, there are very few restrictions on component placement, and there are no “absolutely … Read more
Many PCB products inevitably encounter component damage and failure after being launched. The best practice for this situation is to take preventive measures during PCB design to reduce the failure probability of fragile components during operation. Below, we will discuss which parts of the PCB are most likely to be damaged, hoping to help our … Read more