Ic Information Electronic News

[introduction] in without brush dc machine BLDC in control, no matter still do not have sensor electric machinery to carrying sensor, classics regular meeting uses lead part / guide current flow angle (Lead Angle) . Because electric machinery coil is perceptual load, the to load voltage that goes up at coil relatively so, the electric current in coil can have certain when delay, the efficiency of electric machinery of this meeting influence and generation noise shake etc.   The echelon…

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[introduction] MOSFET is used extensively in imitate circuit and digital circuit, the life with us is inseparable. The advantage of MOSFET depends on: Above all drive circuit is simpler. The drive electricity that MOSFET needs is smaller than BJT much, and normally OK and direct by CMOS or drive of circuit of drive of TTL of collector open a way; Next the switch rate of MOSFET is rapidder, can work with higher rate, because do not have charge memory effect;…

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[introduction] electrostatic discharge (ESD – ElectroStatic Discharge) can bring ruinous consequence to electronic parts, it is one of main reasons that create integrated circuit be no longer in force. Develop ceaselessly as integrated circuit craft, the measure of CMOS circuit is ceaseless and narrow, the bar oxygen ply of pipe is thinner and thinner, the area scale of chip is larger and larger, MOS is in charge of can susceptive electric current and tension are less and less also, and…

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[introduction] MOS field effect is in charge of namely metal – oxide – canal of semiconductor field effect, english abbreviate is MOSFET(Metal-Oxide-Semiconductor Field-Effect-Transistor) , belong to insulation bar model.     Its are main the characteristic is there is layer of insulation of silicon of a 2 oxidations between metallic grid and raceway groove, because this has very tall input resistance (highest can amount to 1015Ω) . It also divides canal of N raceway groove and canal of P raceway…

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[introduction] just as its name implies, suo Xianghuan (PLL) use phase discriminator compares feedback signal and referenced signal, be together the phasic lock of two signal surely. Although this kind of character has the land of a lot of use force, but rate of the most commonly used nowadays Yu Pin synthesizes PLL, act as normally on transducer / in next transducer this brace up (LO) , converter of modulus of appropriative perhaps high speed (ADC) or digital-to-analogue converter (the…

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[introduction] in the process that designing LED drive circuit, need design personnel is particularly attentive, each original is deciding service life, the article explains the sticks a capacitance note in LED drive circuit.   In the process that designs LED drive circuit, need design personnel is particularly attentive, each original is deciding service life, the article explains the sticks a capacitance note in LED drive circuit.   Stick a capacitance full name to be called multilayer (laminose, fold a layer)…

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[introduction] make as mobile Internet, big data, super computation, intelligence, the new theory such as cerebral science, new technology is in progress of whole economy society present state of a prosperity, artificial intelligence theory considered to obtain great ground progress with industrial application, again and again of scientific research great achievements, companies of large quantities of outstanding artificial intelligence grow quickly.   Make as mobile Internet, big data, super computation, intelligence, the new theory such as cerebral science, new technology…

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[introduction] in recent years, with AI, 5G, in the each application link that the intelligent extensive that the technology such as IoT comprises is permeating wisdom city construction ceaselessly quickly in the technology, the industrial catenary that conducts wisdom town subsequently jumps over fine direction more greatly forward outspread extend.   In recent years, with AI, 5G, in the each application link that the intelligent extensive that the technology such as IoT comprises is permeating wisdom city construction ceaselessly quickly…

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[introduction] the installing hole in PCB is the important element in electronic design. Every PCB stylist can know the utility of PCB installing hole and basic design. And, when installing hole and ground join, can save a few needless troubles after installation.   How to use PCB Kong Lai to reduce EMI?   Just as its name implies, PCB installing hole conduces to secure PCB crust to go up. Nevertheless this is its physical machinery utility, in addition, in electromagnetism…

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[introduction] the process that coupling points to to signal is delivered to the 2nd class by the first class, when making clear, be not being added commonly often is to point to communication coupling. Retreating Ou is to point to pair of power source to take further filter wave step, the signal between two class passes purify the influence that power source disturbs each other. Coupling constant is to show coupling capacitance value and impedance of input of the 2nd…

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