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Electronic product design must follow the anti-static discharge (ESD) design rules, because most electronic products will be in an ESD environment 99% of the life cycle, ESD interference will cause the device to lock up, reset, data loss or reliability Sexual decline. Here is an introduction to the skills that engineers must master ESD protection to improve the reliability of electronic products.

Compared with double-sided PCB, the ground plane and power plane, as well as the closely arranged signal line-ground spacing can reduce common mode impedance and inductive coupling, making it 1/10 to 1/100 of double-sided PCB .

EETimes San Francisco reported that under the banner of "fighting China's unfair trade policies," the Trump administration announced a $60 billion tariff collection plan on Chinese products, and the semiconductor industry has made a series of responses.

To qualitatively judge the quality of FETs and transistors, you can borrow a multimeter for testing

Resistor is one of the most commonly used devices in electronic products. Basically, as long as it is an electronic product, there will be resistance inside.

On November 14 news, Qualcomm announced today that the company’s board of directors has rejected Broadcom’s initiative on November 6. They believe that Broadcom has underestimated the value of Qualcomm. In the next few weeks, a fierce battle of "barbarians at the door" may be launched between the two chip giants.

Resistors are the basic components in the circuit. After testing the conductivity of various materials and discovering the existence of electric current, early scientists gradually came up with the concept of resistance.

In the PCB design, a ground loop connected to the peripheral circuit was drawn, and the internal ground was connected with common mode inductors and differential mode inductors.

According to the different conduction mode, MOSFET is divided into enhancement type and depletion type. The so-called enhanced type refers to: when VGS=0, the tube is in an off state, and after adding the correct VGS, the majority of carriers are attracted to the gate, thereby "enhancing" the carriers in this area and forming a conductive channel .

Commonly used power cable technology 72 questions! worth collecting!

Impedance matching refers to an appropriate matching method between the signal source or transmission line and the load. Impedance matching is divided into low frequency and high frequency discussion.

Wireless medical equipment interface and safety