Ic Information Electronic News

[introduction] “2018 thirteenth ” of exhibition of traffic of Shanghai international orbit by Shanghai explain connect country of subway group, Shanghai to exhibit exhibition center to be sponsorred jointly, will in November 7-9 day pulls open heavy curtain in Shanghai. “2018 thirteenth ” of exhibition of traffic of Shanghai international orbit by Shanghai explain connect country of subway group, Shanghai to exhibit exhibition center to be sponsorred jointly, will in November 7-9 day pulls open heavy curtain in Shanghai.  …

Read More Read More

[introduction] in all modular inductance (Common Mode Choke) , also cry in all modular choke, it is to be in to close the semmetry on magnetism annulus is circled make way the coil with contrary, v/LIT all over the ground same number. Ideal in all modular choke is right L (or N) with E between in all modular interference has inhibition, and interference of wrong to what exist between L and N standard does not have inductance inhibition.   But…

Read More Read More

[introduction] IGBT(insulation bar ambipolar model transistor) , be by dynatron of BJT(ambipolar knot crystal) with MOS(effect of insulation bar field is in charge of) compound fully control of composition – voltage drive type – power semiconductor device, its have the feature that involves oneself. Tell simply, it is a blame connects the switch that breaks namely, IGBT does not have the function of enlarge voltage, guide when connecting can regard as lead, open a way should be made when disconnecting….

Read More Read More

[introduction] when designing power source, if why handle transient state tension,designing one of challenges that personnel faces is. Protective circuit does not suffer prep above integrated circuit (voltage of IC) rated input (VIN) it is very important that voltage peak value is destroyed. When handling transient state tension, design personnel can choose to use the DC/DC converter with input voltage wider range to protect voltage of all transient state in systematic front, perhaps use the DC/DC converter with input inferior…

Read More Read More

[introduction] normally, when defining a kind of new parts of an apparatus or appliance to allow in order to reach strict car mark, our group can see other need the system of same function, and we are met the design crosses all parts of an apparatus of these application. The group that this is us develops new-style ALM2402 (the amplifier of operation of double big electric current that designs for car application only (carry is put) ) when the situation…

Read More Read More

[introduction] perhaps you know switch power source, also understand switch power source to string together modular choke, in all modular choke, but how to know to modular choke is strung together in select switch power source certainly, in all modular choke? So, the article teachs you how to choose namely. Perhaps you know switch power source, also understand switch power source to string together modular choke, in all modular choke, but how to know to modular choke is strung together…

Read More Read More

[introduction] in most lab environment, the equipment such as analyzer of signal generator, spectrum is Chan Duanyi implement, those who be used at measuring high speed to differ minute of amplifier driver and converter is lack fidelity. Accordingly, the even number that measures amplifier driver rank the parts of an apparatus with lack fidelity additional need, wait like Ba Lun and attenuator, test the one part of the setting as whole, join with checking Chan Duan the instrument the difference…

Read More Read More

[introduction] the relevant knowledge that the article will come to introduce carry to put self-excitation, understand the phasic compensation that carry puts first above all, the phasic compensation that carry puts is to let carry put can work normally, often increase electric capacity of one phasic compensation between the input in circuit and output. The phasic compensation that carry puts Can work normally to let carry put, circuit middling increases electric capacity of one phasic compensation between input and output….

Read More Read More

[introduction] analysed on the upright voltage when constant of modulation of bridge arm PWM, arm playing the bridge opens modulation way is undee, discuss to turn over electromotive force accordingly to detected at 0 o’clock too method. In PWM modulation signal liberal position ends hour to undertake sampling to carrying voltage, turn over electromotive force to pass certainly by software algorithm at 0 o’clock. The circumstance of lead commutation or lag commutation exists when moving in the light of electric…

Read More Read More

[introduction] we first for say capacitance, say character of low frequency of large electric capacity is good, small electric capacity is high frequency and characteristic good, so become the word for inverse ratio according to the size of capacitive reactance and capacitance C and frequency F, it is large electric capacity not only low frequency character is good, high frequency character is better, because frequency is taller, the size is larger, capacitive reactance is lower, high frequency whether to pass…

Read More Read More