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Month: April 2018

Planar transformer is helpful for DC/DC converter design

Planar transformer is helpful for DC/DC converter design

[introduction] long-term since, transformer is the pain spot of personnel of DC/DC converter design and difficulty all the time. Because of their bulk big, price is expensive and make hard. Through reading chrestomathy piece article, you can understand planar transformer is how to raise quality to reduce converter of low power DC/DC to design cost. What do planar transformer and annular transformer have to distinguish? Transformer is the main core that any DC/DC converter design, it is the crucial component…

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Turn for advanced processor and MCU choice USB receive driver: These 3 crucial technologies think, do you know?

Turn for advanced processor and MCU choice USB receive driver: These 3 crucial technologies think, do you know?

[introduction] the market grows day and day to the demand of expensive processing capability and low power comsumption, driving processor and MCU to develop to the advanced technology node that uses technology of 5 accept rice. Move to using 1.2V power source and apply to shift and computational application and traditional market (like medical treatment, industry and telecommunication) processor, USB2 interface is a challenge. Because the working voltage of USB2 interface is inferior, need converter ability undertakes notting have seaming…

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Derivation capacitance is passed feeling the transfer function of accelerometer

Derivation capacitance is passed feeling the transfer function of accelerometer

[introduction] in the part in this series, we discussed quality – bedspring – damper (or quality – damper – bedspring) the structure can be used at measuring acceleration. To make pledge gauge block displacement and the acceleration that bring to bear on become direct ratio, should choose qualitative gauge block appropriately – bedspring – the different parameter of damper system. The article will use classical and mechanical notional derivation quality – bedspring – the transfer function of damp system. In…

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The objective structure of 3 kinds of main electric machinery reachs his to use circuit

The objective structure of 3 kinds of main electric machinery reachs his to use circuit

[introduction] although ” the sort of electric machinery ” these a few words say simple, but the development as the technology, electric machinery has become increasing appearance is changed, because this classifies a method to also present diversification trend, can wait according to domain of structure of the power source sort, principle that produces torsion, electric machinery and application undertake classified. What sort does electric machinery have? Although ” the sort of electric machinery ” these a few words say…

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The product of power source of drive of whole set grid of demand of contented and current power supply

The product of power source of drive of whole set grid of demand of contented and current power supply

[introduction] the foundation that power source is electronic equipment, among them grid driver is the key that stability provides facility power source. Grid driver is amplifier of a kind of power, it accepts the low power input that comes from controller chip, it is high power transistor (for example IGBT or power MOSFET) input of drive of grid generation tall electric current. The article will introduce the technical idea of grid drive power source and DC-DC converter for you, and…

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Use oscillograph measures the operating ring road of power source to answer

Use oscillograph measures the operating ring road of power source to answer

[introduction] although can use special device to carry out frequency,answer an analysis, but also can use newer oscillograph to measure power source operating ring of the road answer. Source of use oscillograph, signal and automation software, can undertake metrical quickly and appear with familiar Bodetu. This makes evaluate abundant to measure and have circuit function and model comparative becoming easy. The frequency that Bodetutong passes system of two graphs scale is answered — amplitude graph and phasic graph (the phase…

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Contrast has the spectrum of signal of infinite and discontinuous dot twice

Contrast has the spectrum of signal of infinite and discontinuous dot twice

[introduction] think of a problem today,  there are two to be contained here many more boundless bit more discontinuous signal. They are located in 0, 1 between. ? The first signal is from 0 begin to go to 1 advancement,  the half of every ongoing and odd distance, amplitude reduces an in part. ? The 2nd signal is from 0 toward 1 advancement, advance every time the half of odd distance. The rectangular pulse signal that a width appears to…

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The NRZ that how uses power supply of only power source arrives AMI converter

The NRZ that how uses power supply of only power source arrives AMI converter

[introduction] pass in the digital data that passes cable in be defeated, often use pass date to invert alternately (AMI) encode, because this is planted,encode did not shed weight continuously. Besides, the bandwidth of AMI signal also should be compared equivalent clear (RZ) yard is small. Below normal circumstance, to produce such as AMI such ambipolar weaveform, need is used losing two power source. Pass in the digital data that passes cable in be defeated, often use pass date to…

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Type of retrorse puncture of a few kinds of infra-red LED

Type of retrorse puncture of a few kinds of infra-red LED

[introduction] basis The odd photon avalanche of the gules LED that place of Using LED As A Single Photon Detector[1] introduces is retrorse effect of puncture electric current, ? In Bo Wen The odd photon phenomenon in the retrorse puncture process that checks a few LED [2] In have a test to a few kinds of LED of at hand, ? Discover only two infra-red LED can appear phenomenon of retrorse avalanche puncture, other LED does not have this kind of circumstance. ?…

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Exceed TPS61299 of converter of step up of electric current of small static state — can apparel the reliable partner of equipment

Exceed TPS61299 of converter of step up of electric current of small static state — can apparel the reliable partner of equipment

[introduction] the progress as the technology, can apparel the function with the sort of individual electron product and compositive place is increasingly rich, for example glasses of annulus of hand of intelligent watch, intelligence, AR, more and more person selected choose are bought use this kind of product. To promote an user the experience further, lengthen can apparel a when the service life of the batteries in equipment becomes developer to be faced with serious challenge. TI is new the…

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