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One article talks with transparent electrostatic discharge (ESD) protection

Updated: 2022-03-17
Views: 6639

I have always wanted to tell you about the theory of ESD, which is classic. However, because the theoretical is too strong, any theory is one by one. If you do not draw eggs, you will not draw David. Let's talk about what is the electrostatic discharge (ESD: Electrostatic Discharge)? This should be the main culprit tha……

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What is Hall effect (Hall)? Hall effect sensor work principle analysis

Updated: 2022-03-17
Views: 6681

Integrated circuit (Hall Effect IC), Hall Effect Sensor IC, Hall Sensor, Hall circuit, Hall IC. Hall is sometimes translated into Huo Er, so it can also be called Huo Er integrated circuit. The following is referred to as Hall IC. Hall IC is usually divided into digital Hall IC and linear Hall IC according to the outpu……

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3D packaging will become the main process! Advanced packaging of chip giants!

Updated: 2022-03-17
Views: 6860

I. 3D packaging will become the main process from: Recently, the research director of the Taiwan Institute of Industrial and Technology of China will predict that TSMC will dominate the chip manufacturing industry for five years. After that, 3D packaging will become the main process challenge. In the past ten years, va……

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Why is the power MOS tube burned? Come in and see!

Updated: 2022-03-17
Views: 6507

The working status of MOS in the controller circuit: the process of opening (from the transition process from the deadline), the transition status, the process of turning off (from the transition process from the diversion to the deadline), and the deadline. The main loss of MOS also corresponds to these states, switch……

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Deep analysis! Power semiconductor on the car (2)

Updated: 2022-03-17
Views: 6421

The power-driven system is mainly used in the inverter DC-AC, and the DC electricity conversion of the charging battery 12V is converted into an AC electric drive motor of the drive motor 220V. Dozens of IGBTs need to be used on the motor control system. After output high voltage from the battery, it needs to be change……

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It's time to understand oxidation

Updated: 2022-03-17
Views: 5921

In the IEEE SPECTRUM Chinese version of "Science and Technology Observation" in May 2002, the late Lester F. East-Man and Umesh K.Mishra (Umesh K.Mishra) Speaking of a bold technology in the power semiconductor industry at the time: Nitride (GAN). They expressed an optimistic view on the prospects of the emerging broad……

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Dry! PLC on -site installation and debugging throughout the process of combat experience

Updated: 2022-03-17
Views: 6008

The installation and debugging of the PLC control system involves various tasks, and it can only be carried out in order. One ring is closely linked to one ring. A little carelessness will cause the debugging failure, which will not only delay the construction period, but even damage the equipment. This article introdu……

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The principle of shallow analysis of PWM control motor speed

Updated: 2022-03-17
Views: 6289

The principle of frequent DC motors is electromagnetic magnetic: the power -powered wire will produce a magnetic field. That is, the electromagnetic induction rotation magnetic field drives the rotor. The motor is composed of stator and rotor, one generates a rotary magnetic field, one is the magnetic pole, and the rot……

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What is the difference between synchronous rectification and non -synchronous rectification?

Updated: 2022-03-17
Views: 6375

The switching power supply is charged inductive and inductive energy storage when the power tube is turned on; when the power tube is turned off, the induction releases energy, thereby achieving voltage transformation. When the power tube is cut off, the energy release of energy requires a current circuit. The selectio……

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The damping oscillation of the switching power supply

Updated: 2022-03-17
Views: 5994

In the first two issues, the RCD circuit is inevitably mentioned. From this I thought of our most commonly used circuit, Buck circuit. Buck oscillating wave -shaped buck circuit The SW waveform in front of the inductance, everyone must have measured it. In general, there are nothing in the following two: whether it is ……

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The strongest summary: 27 simulation circuit basic knowledge!

Updated: 2022-03-17
Views: 6695

01 What is the content of Kirhoff's theorem? Kirhoff's current law: At any point in the circuit, the algebra that flows into and out of the node current is zero……

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Super semiconductor

Updated: 2022-03-17
Views: 6092

Author: gregg H. Jessen in the Chinese version of "Science and Technology Observation" in the May 2002 issue of IEEE SPECTRUM, the late Leist F. East-Man (Umesh K.Mishra) talked about a bold technology in the power semiconductor industry at the time: Nitride (GAN). They expressed an optimistic view on the prospects of ……

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