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SiC MOSFET FIT leads the impact with grid oxide dependability

SiC MOSFET FIT leads the impact with grid oxide dependability

[introduction] besides function, dependability and consistence are the topic with SiC MOSFET most discussion. We bear consistence definition for parts of an apparatus the ability of specific special pressure event, for example, short circuit ability or pulse electric current handle ability. Dependability points to the stability that parts of an apparatus issues in the normal operating conditions inside target life. The phenomenon related to dependability includes the drift of certain and electric parameter or the stoppage that destroy a gender….

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For embedded equipment builds safe defense line, these design a point, you must look!

For embedded equipment builds safe defense line, these design a point, you must look!

[introduction] include hardware and inside the equipment of buy software is us what often say is embedded system, these equipment can finish a function or a group of jobs independently, a lot of memory in them emphasize wanted information, still can execute the crucial function that affects the mankind and environment likely. Now, embedded the main goal that equipment already atttacked into the hacker. As a result of a lot of by embedded the small package of equipment drive and…

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Detailed understands the working principle of MEMS VOA smooth attenuator

Detailed understands the working principle of MEMS VOA smooth attenuator

[introduction] MEMS (Micro Electro Mechanical System, system of personal computer cable) the technology is applied extensively in fiber-optic communication system, the union of MEMS technology and optical technology, call MOEMS the skill normally. Most commonly used MOEMS parts of an apparatus includes WSS of select switch of DGE of equalizer of TOF of adjustable and OS of smooth attenuator VOA, smooth switch, optical filter, dynamic gain, wavelengh and matrix smooth switch OXC.   MEMS (Micro Electro Mechanical System, system of…

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The application of sensor of temperature of intelligent adjustment subway

The application of sensor of temperature of intelligent adjustment subway

[introduction] current society, subway development is rapid, already became people short distance to give a the mainest vehicle. And environmental sensor is having mainer and mainer effect on the subway, sensor of use temperature and humidity, carbon dioxide sensor, PM2. The environmental sensor such as 5 dust sensor, can make sure the subway stands inside and the empty temperamental quantity on the subway is in kilter all the time.   Current society, subway development is rapid, already became people short…

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Of transistor small shrink problem

Of transistor small shrink problem

[introduction] in semiconductor industry, “ is small shrink (Scaling) ” is a term that often appears, say for example, we often hear concerned transistor in the news of semiconductor industry small shrink (namely accept rice class (Nano-scale) measure is narrow to atomic level) information.   In semiconductor industry, “ is small shrink (Scaling) ” is a term that often appears, say for example, we often hear concerned transistor in the news of semiconductor industry small shrink (namely accept rice class…

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How to simplify power source keeps apart a design, satisfy EMI objective easily?

How to simplify power source keeps apart a design, satisfy EMI objective easily?

[introduction] electronic system needs to carry out segregation, its action is the influence that protects personnel and equipment not to get tall tension, perhaps be the ground connection return that eliminates PCB to go up not to need merely. In various application, include equipment of factory and industrial automation, medical treatment, communication and consumption kind product, it is element of a basic design.   Electronic system needs to carry out segregation, its action is the influence that protects personnel and…

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How to reduce in all interference of modular radiate electromagnetism?

How to reduce in all interference of modular radiate electromagnetism?

[introduction] in all because be put in voltage drop in ground connection circuit,modular radiate is (pursue as follows) , certain place has high potential in all modular voltage, cable and these are received outside becoming when place joins, can be in arise below modular voltage drive in all in all modular electric current, make the antenna of radiation electric field. Because what voltage drop of the existence in ground connection system causes,this majority is. In all the radiation function that…

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Without trouble, tall gain: Compose builds the amplifier of low noise appearance that has sensitivity of class of offer dog days

Without trouble, tall gain: Compose builds the amplifier of low noise appearance that has sensitivity of class of offer dog days

[introduction] compose builds the voltage that has sensitivity of class of offer dog days to measure a system to be able to encounter a lot of designs to challenge. Current and best operation amplifier (exceed low noise AD797 for instance) can achieve the noise performance under 1nV/ Hz (1 KHz) , but the noise function that noise limitted low frequency to be able to come true is about 50 NV P-p (0.1 Hz comes 10 Hz frequency paragraph inside) ….

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The character of sensor of village cropland AMR reachs a dominant position

The character of sensor of village cropland AMR reachs a dominant position

[introduction] AMR sensor is a kind of tie-in magnet is used, the magnetoresistive variation that uses specific direction magnetic field to bring realizes detected magnetism sensor. The article introduced AMR (magnetic) the main character of sensor, advantage, difference that with its he sends feeling kind, wait quite.     01 essentials   AMR sensor is a kind of tie-in magnet is used, the magnetoresistive variation that uses specific direction magnetic field to bring realizes detected magnetism sensor.   The product…

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Appearance amplifier noise

Appearance amplifier noise

[introduction] because appearance amplifier basically is used at enlarge tiny and accurate signal, accordingly, be necessary to know the effect of source of all and relevant noise. Following face figures show appearance amplifier model 1 times.     Input voltage noise has two source. The first origin expresses to be the noise source V that carries series with the inputNI, in be like circuit of groovy operation amplifier same. This noise reflects output end by G of appearance amplifier gain….

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