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Brief analyse is electroacoustic parts of an apparatus and the design of electric sound system

Brief analyse is electroacoustic parts of an apparatus and the design of electric sound system

[introduction] before the relation between the factor that the article told about sound of sound of a few images and objective index and electroacoustic products plan, craft. Share electroacoustic parts of an apparatus to affect audio to everybody now index of a few technologies.   There was an article to relate the concern between element of audio of a few influences and objective index and electroacoustic products plan, craft before. Share electroacoustic parts of an apparatus to affect audio to…

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Magnetic sensor realizes electric machinery to control positional feedback

Magnetic sensor realizes electric machinery to control positional feedback

[introduction] the main feedback system that article key introduction is based on switch of Huo Er effect, provide the specification that asks about general job principle and sensor, revealed Ying Feiling BLDC to use switch of effect of special Huo Er.   Graph the 1 the simplest application give a demonstration that showed switch of suddenly Er effect feedbacks. Sensor of 3 suddenly Er is separated by 120° photo corner, spark through rotor magnet. Every 60° obtains these sensor a…

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How does PCB design affect performance of power source EMC?

How does PCB design affect performance of power source EMC?

[introduction] electronic engineer most propbably knows everybody, when the design, PCB design holds very significant position. It is with power source exemple, PCB design can affect ability of noise of the EMC function of power source, output, interference rejection directly, it is basic function even. The PCB wiring of power source part and other hardware have a bit different, how should design? The article uncovers secret for you.   Most propbably of each electronic engineer knows, when the design, PCB…

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The 3 PCB circuit of amplifier of high speed operation designs skill

The 3 PCB circuit of amplifier of high speed operation designs skill

[introduction] printed circuit board (PCB) wiring has crucial effect in high speed circuit, but it often is circuit design process is final one of a few measure. Wiring of high speed PCB has the problem of a lot of respects, about this title already somebody compose many document. The article basically discusses the wiring issue of high speed circuit from the angle of practice.   Printed circuit board (PCB) wiring has crucial effect in high speed circuit, but it often…

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Component of suddenly Er sensor uses a dominant position mediumly in home appliance equipment

Component of suddenly Er sensor uses a dominant position mediumly in home appliance equipment

[introduction] to be in market of current intelligence home appliance retains competition ability, design personnel must make full use of the technology of avery kind of that they can use, include to be not contact sensor. These sensor can improve the function that home appliance designs and outward appearance, the satisfaction that adds customer thereby is spent. Compare with mechanical technology photograph, sensor of use blame contact has as energy-saving as use microprocessor effect not only, and enhanced dependability and…

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Share defend encyclopedia of yuan of understanding of parts of an apparatus in circuit

Share defend encyclopedia of yuan of understanding of parts of an apparatus in circuit

[introduction] the ceaseless progress as the society, the development of content couplet net, setting applies outdoor electronic product, continuously fast growth, electronic product received extremely wide application, no matter be common cause, still be business is used civil perhaps, had arrived deep each domains, of environment of the diversification that this also caused product function, application complication.   As ceaseless progress of the society, the development of content couplet net, setting applies outdoor electronic product, continuously fast growth, electronic product…

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How to eliminate the scintilla that relay produces when contact movement?

How to eliminate the scintilla that relay produces when contact movement?

[introduction] as a result of relay of contact beat or leave those who shut is flashy the change that all can cause perceptual load, produce gas discharge phenomenon, but the electric current that contact connects relay is lesser, electric arc won’t appear between contact, but ” of discharge of scintilla of meeting occurrence “ , because inductance exists in contact circuit,this is, can appear on the inductance when disconnecting overvoltage, it and power source voltage are added on contact clearance…

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The magnetism cell that uses at EMC – magnetism bead piece (below)

The magnetism cell that uses at EMC – magnetism bead piece (below)

[introduction] go up a basic parameter that we explained magnetism bead, the young associate that need reviews can click the magnetism cell that uses at EMC – magnetism bead piece (on) look, below piece we analyse the key the method that reduces damp of system of section filter wave to reach magnetism bead to slant in dc the influence below buy.   Adjust the method of damp of filter wave system   This section introduction adjusts a few kinds the…

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The magnetism cell that uses at EMC – magnetism bead piece (go up)

The magnetism cell that uses at EMC – magnetism bead piece (go up)

[introduction] a kind magnetism bead is numerous magnetism component, magnetism bead is divided again to wear a heart magnetism bead is mixed stick a magnetism bead. Author individual thinks to wear a heart magnetism bead is more adjacent at inductance, its are relatively scarce also in applying actually, be in especially at present the requirement of product miniaturization trend, stick a magnetism bead to have an advantage more. The article sticks a magnetism bead to spread out around what express…

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The electromagnetism radiate of EMC study

The electromagnetism radiate of EMC study

[introduction] the radiate that what EMI pays close attention to is electromagnetism energy, include the interference of exterior electromagnetism environment to oneself system, and the interference of energy of oneself radiant electromagnetism to outside system. These interference cannot exceed a limit, exceeded this limit to be able to pose a problem, these disturb in the final analysis or the signal integrality that affected a system. What EMI pays close attention to is the radiate of electromagnetism energy, include the interference…

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