Data supports almost every aspect of today’s world, and the amount of data generated, processed, shared or otherwise processed is increasing year by year. It is estimated that 90% of the world’s data has been generated in the past two years, and more than 80% of organizations are expected to manage ZB-level data in 2025,…
The power circuit is an important part of an electronic product. The quality of the power circuit design directly affects the performance of the product. The power circuits of our electronic products mainly include linear power supplies and high-frequency switching power supplies. Theoretically, the linear power supply is how much current the user needs, and…
Many people like design. When designing, people must first master the most basic design skills, and then practice and study continuously. For friends who are determined to be engineers, drawing boards are hard skills. If you don’t practice, you will not succeed. Even if you can remember all the characteristic curves of MOS tubes, you…
1.Fault characteristics and repair of capacitor damage in industrial control circuit boards Faults caused by capacitor damage are the highest in electronic equipment, especially electrolytic capacitor damage is the most common. Capacitor damage is manifested as: Capacitance decreases; Complete loss of capacity; Leakage; Short circuit. Capacitors play different roles in circuits, and the faults they…
Many PCB board design enthusiasts, especially beginners, do not have a full understanding of the various layers in PCB design, and do not know their functions and uses. Here is a systematic explanation for everyone: 1.Mechanical mechanical layer, as the name implies, is the appearance of the entire PCB board for mechanical shaping. In fact,…
The creator of printed circuit board is Austrian Paul Eisler. In 1936, he first used printed circuit board in radio. In 1943, Americans mostly applied this technology to military radios. In 1948, the United States officially recognized this invention for commercial use. Since the mid-1950s, printed circuit boards have been widely used.Before the emergence of…
Differential signal pairs that are routed very close to each other will also be tightly coupled to each other. This mutual coupling will reduce EMI emissions. The main disadvantage of differential signal lines is that they increase the area of the PCB. This article introduces the routing strategies of using differential signal lines in PCB…
Summary of the ten common defects in PCB board design process 1.Unclear definition of processing level Single-sided board design is on the TOP layer. If it is not explained that it is done on the front and back, the board may not be easy to solder when the device is installed. 2.The distance between the…
1.Direct replacement Direct replacement means directly replacing the original IC with other ICs without any modification, and the replacement does not affect the main performance and indicators of the machine. The replacement principle is: the functions, performance indicators, packaging form, pin usage, pin number and interval of the replacement IC are the same. The same…
If the wiring does not require an extra layer, why use it? Wouldn’t reducing the layer make the board thinner? Wouldn’t the cost be lower if the board had one less layer? However, in some cases, adding a layer would reduce the cost. There are two different structures of PCB boards: core structure and foil…
(1) High-frequency circuits are often highly integrated and have high wiring density. The use of multilayer boards is necessary for wiring and is also an effective means to reduce interference. (2) The fewer bends in the leads between the pins of high-speed circuit devices, the better. It is best to use all-straight lines for the…
In the research of PCB reverse technology, reverse schematic diagram refers to reversely deducing the PCB circuit diagram based on the PCB file diagram or directly drawing the PCB circuit diagram based on the actual product, aiming to explain the principle and working condition of the PCB board. In addition, this circuit diagram is also…
After the PCB design is completed, it needs to be output to the board factory for processing, production, patching, and assembly. Faced with the fierce market competition trend, the cost of PCB circuit board materials is also on the rise. More and more manufacturers are monopolizing the market with low prices in order to enhance…
1.Laminate process reasons: Under normal circumstances, as long as the high temperature section of the laminate exceeds 30 minutes, the copper foil and the prepreg are basically completely combined, so the pressing generally does not affect the bonding strength between the copper foil and the substrate in the laminate. However, during the lamination and stacking…
Detection Circuit in PCB Reverse Design System 1 Introduction When electronic engineers are performing reverse design or repair work on electronic equipment, they first need to understand the connection relationship between the components on the unknown printed circuit board (PCB), so they need to measure and record the connectivity relationship between the pins of each…
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