Archive

• Why are processors square and not round?

  Archive

  Friends who know something about hardware almost know that shape of processor is a square metal plate, and of course there is also a rectangular version. The top surface is flat and smooth, while bottom surface has metal contacts ...

  2023-03-18【Archive】

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• Why are there always two capacitors in circuit 0.1uF and 0.01uF?

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  1. Traversal and separation The two concepts of Bypass Capacitor and Decoupling Capacitor are common in circuits, but not easy to understand. To understand these two words, you need to go back to English context. Bypass means dr...

  2023-03-18【Archive】

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• Explain PCB copy process in detail, it's amazing

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  The technical process for implementing a copy PCB board is to simply scan PCB for copying, record detailed location of components, and then remove components to make a BOM and organize material procurement. scanned to an image and...

  2023-03-18【Archive】

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• Why are circuit boards mostly green? See what these 20+ engineers have to say

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  Why are circuit boards mostly green? This is a detail that power engineers rarely think about. Today on Zhihu, I saw that more than 20 engineers gave some answers. Let's see what each engineer said. Point 1 It is mainly coated wi...

  2023-03-18【Archive】

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• 7 things you need to know about high-speed linking and routing

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  What knowledge and skills should engineers have when designing high-speed circuits? Below is a detailed description of seven technical aspects to answer them one by one. 01 Power Supply Diagram and Wiring Digital circuits ofte...

  2023-03-18【Archive】

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• Under what circumstances will there be 220 V between neutral line and ground line?

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  The three ends of live wire, neutral wire and ground wire are called phase wires, and three ends of three-phase electricity are connected together and are called neutral wires, also called "neutral wires". The reason it is called ...

  2023-03-18【Archive】

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• "Clear at a glance" inside power supply

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  The power supply does not look like a processor, you can see specifications and performance; power supply is not like a video card, class is determined by key GPU. In addition to power requirements, a good power supply must al...

  2023-03-18【Archive】

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• Why can't crystal oscillator be placed on edge of the PCB?

  Archive

  01 Problem description For driving recorder, you need to add an external adapter during test, and it was found to exceed standard when car is turned on and tested. Radiation test data is as follows: 02 Emission source analysis...

  2023-03-18【Archive】

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• Why can't copper and aluminum wires be twisted together when wiring?

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  Briefly about advantages and disadvantages of copper and aluminum wire: With same area, load on copper wire is greater than on aluminum one. Copper wire is more flexible than aluminum wire. Copper wire has a lower resistivity than...

  2023-03-18【Archive】

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• Diodes, triodes, MOS tubes, commonly used physical package map (including exact dimensions)

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  Electronic components have different types of packaging. Although different types of components have a similar appearance, their internal structure and use are very different. For example, TO220 package components can be triodes,...

  2023-03-18【Archive】

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