Dab tsi yog qhov zoo ntawm kev sib txuas ntawm diodes hauv cov cuab yeej kho mob?

1, Kev hloov pauv tam sim no thiab nthuav dav: tawg los ntawm kev txwv kev ua haujlwm ntawm ib lub raj
Cov kev xav tau rau kev ua tam sim no muaj peev xwm ntawm cov cuab yeej kho mob tau dhau los ua nruj. Piv txwv li, portable defibrillators yuav tsum tau tiv taus ntau pua amperes ntawm tam sim no thaum lub sij hawm siab -voltage paug, thaum ib lub raj diodes raug txwv los ntawm cov ntaub ntawv thiab cov txheej txheem, thiab lawv cov ntsuas tam sim no feem ntau tsuas yog ob peb kaum tawm amperes. Los ntawm paralleling ntau diodes, linear superposition faib ntawm tam sim no tuaj yeem ua tiav. Siv peb lub diodes nyob rau hauv qhov piv txwv, txhua lub raj tsuas yog yuav tsum tau dais ib qho -feem peb ntawm tag nrho cov tam sim no, yog li zam qhov kev pheej hmoo ntawm thermal runaway tshwm sim los ntawm ib lub raj ntau dhau.

Qhov tseem ceeb technical parameter:

Kev sib koom tsim tam sim no: Nws yog ib qho tsim nyog los xaiv diodes ntawm tib tus qauv nrog qhov sib txawv ntawm tsawg dua ± 5% hauv lub xeev voltage (Vf) kom ntseeg tau tias kev faib tawm tsis sib xws ntawm tam sim no. Piv txwv li, nyob rau hauv lub photoelectric detection module ntawm ib tug ntshav analyzer, plaub BAS70 tsis tshua muaj to tam sim no diodes txuas nyob rau hauv parallel los tswj tag nrho cov tam sim no yuam kev nyob rau hauv ± 2%.
Thermal coupling effect: Parallel tube cores tsim ib txoj hauv kev thermal los ntawm lub substrate los yog lub dab dej kub, thiab qhov tsis zoo kub coefficient (NTC) tus yam ntxwv yuav txo tau cov load tam sim no ntawm siab -kub tubes. Kev sim cov ntaub ntawv qhia tau hais tias thaum lub ambient kub nce los ntawm 25℃mus rau 85 degree, tam sim no faib deviation ntawm parallel hlab yog txo los ntawm 15% mus rau 3%.
Kev lag luam thov rooj plaub:

CT scanner: Nws X-ray detector siv 16 SS14 Schottky diodes nyob rau hauv parallel, txo cov ncov tam sim no ntawm 200A mus rau 12.5A / raj. Nyob rau tib lub sijhawm, los ntawm tooj liab substrate tshav kub dissipation tsim, qhov kub ntawm lub raj tub ntxhais yog stabilized hauv qab 60 degree.
Portable ultrasonic ntsuas: Nyob rau hauv lub mem tes tiam Circuit Court, peb 1N4148 siab -ceev hloov diodes yog kev cob cog rua nyob rau hauv parallel kom luv lub sij hawm nce los ntawm 5ns mus rau 1.8ns, ua tau raws li qhov yuav tsum tau ntawm siab - zaus teeb liab kis tau tus mob.
2, Kev Txhim Kho Kev Txhim Kho Kev Txhim Kho: Tsim kom muaj Kev Tiv Thaiv Kev Tiv Thaiv Rov Qab
Lub zero tolerance yam ntxwv ntawm cov cuab yeej kho mob rau kev ua txhaum yuav tsum muaj kev cuam tshuam tseem ceeb kom muaj peev xwm ua rau muaj peev xwm ua txhaum. Kev sib txuas ntawm cov diodes ua kom muaj kev ntseeg tau zoo dua los ntawm kev tsim kho dua tshiab. Thaum qee lub raj tsis ua haujlwm vim yog kev tsim khoom tsis xws luag lossis kev laus, cov raj seem tuaj yeem txuas ntxiv rau cov khoom thauj tam sim no kom tsis txhob kaw cov khoom siv.

Reliability qauv validation:

Kev txhim kho MTBF: Thaum tib lub raj tsis ua hauj lwm tus nqi yog λ, qhov tsis ua hauj lwm tus nqi ntawm n-tube parallel system txo mus rau λ / n. Piv txwv li, nyob rau hauv lub input tiv thaiv Circuit Court ntawm ib tug electrocardiograph, ib tug dual raj parallel tsim yog siv los mus cuag lub sij hawm nruab nrab ntawm kev ua tsis tiav (MTBF) los ntawm 50000 teev mus rau 100000 teev.
Lub hauv paus ntsiab lus ntawm derating: Rau diodes nrog qhov kub tsis zoo coefficient ntau dua 2mV / K, tag nrho cov kev ntsuas tam sim no yuav tsum tau derated mus rau 80% ntawm qhov ntsuas ib leeg. Tom qab siv lub tswv yim no, tus nqi tsis ua haujlwm ntawm lub roj teeb tiv thaiv hluav taws xob hauv qee hom tshuaj insulin twj tso kua mis poob 67%.
Cov xwm txheej kev lag luam:

Sib nqus resonance imaging ntsuas: Nws gradient amplifier siv 24 MBR2045CT Schottky diodes nyob rau hauv parallel. Nyob rau hauv tas li 10kA surge tam sim no, txawm tias 3 tubes ua tsis tiav, lub kaw lus tseem tuaj yeem tuav tau 87.5% tso zis muaj peev xwm.
Endoscope txias lub teeb qhov chaw: dual fais fab mov yog tiav los ntawm kev sib txuas ntawm ob lub UVLEDs. Thaum lub teeb ci tseem ceeb ua tsis tiav, lub teeb ci thaub qab tuaj yeem hloov pauv tsis pub dhau 10 μs kom paub meej qhov kev phais kom pom tseeb.
3, Kev ua kom zoo dua qub: Siv cov kev cai tshwj xeeb hauv Circuit Court
Diode parallel kev sib txuas tsis yog tsuas yog siv rau kev ua haujlwm tam sim no, tab sis kuj tuaj yeem ua tau raws li qhov tshwj xeeb ua haujlwm ntawm cov cuab yeej kho mob los ntawm kev tsim ua ke. Piv txwv li, nyob rau hauv lub teeb liab nrhiav kom tau circuits, thaum uas tig mus diodes nrog txawv tsis muaj peev xwm nthuav lub dynamic ntau yam; Nyob rau hauv lub hwj chim tswj module, parallel Schottky diodes tuaj yeem txo qhov kev poob qis.

Tej yam kev thov scenarios:

Wide dynamic range nrhiav kom tau:
Hauv kev saib xyuas cov ntshav oxygen saturation, ob lub photodiodes uas muaj qhov sib txawv ntawm qhov sib txawv yog txuas nrog rau tib lub sijhawm: ib qho pom cov teeb liab tsis muaj zog (xws li capillary pulsation), thiab lwm qhov pom cov teeb liab muaj zog (xws li ambient teeb cuam tshuam). Extract cov teeb liab muaj txiaj ntsig los ntawm kev sib txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab nthuav dav qhov sib txawv ntawm 40dB txog 70dB.
Tsawg poob zog switching:
Qhov tiag - lub sij hawm moos (RTC) module siv BAT54C hom cathode dual channel Schottky diodes nyob rau tib lub sijhawm kom ua tiav kev hloov pauv tsis siv neeg ntawm lub zog thiab khawm roj teeb. Nws 0.22V ultra- qis rau pem hauv ntej voltage poob txuas ntxiv roj teeb lub neej los ntawm peb zaug, ua tau raws li qhov xav tau ntawm cov khoom siv kho mob mus txog 10 xyoo.
High-frequency suab nrov suppression:
Nyob rau hauv qhov hluav taws xob tawm ntawm lub defibrillator, peb BAV99 siab -ceev hloov diodes tau txuas nrog nyob rau hauv parallel los ua ib tug π - hom lim, uas yuav txo tau lub ncov electromagnetic cuam tshuam (EMI) los ntawm 50dB μ V rau 30dB μ V, nyob rau hauv ua raws li IEC 60601 kev nyab xeeb qauv-1.
4, Kev Lag Luam Trends thiab Kev Sib Tw
Nrog rau kev txhim kho cov cuab yeej kho mob mus rau miniaturization thiab kev txawj ntse, diode parallel thev naus laus zis tab tom ntsib txoj hauv kev tshiab thiab cov teeb meem:

Cov khoom siv tshiab: Gallium nitride (GaN) - raws li diodes tau siv rau high- zaus sojntsuam tsav tsheb Circuit Court ntawm portable ultrasonic instruments nrog kev hloov ceev ntawm 100V / ns thiab ib qho ultra- qis voltage poob ntawm 0.1V.
Integrated tsim: SOT-23 ntim dual channel Schottky diodes launched los ntawm manufacturers xws li Qiangmao integrate parallel chips rau hauv 0.8mm × 0.8mm chips kom tau raws li cov kev xav tau ntawm ultra me me li bracelets ntse.
Kev tswj cov cua kub kom zoo: Los ntawm kev siv cov ntaub ntawv hloov pauv theem (PCM) thiab microchannel tshav kub dissipation technology, qhov kub ntawm qhov sib npaug ntawm cov diodes ntawm 100A tam sim no raug txo los ntawm 15℃mus rau 5 degree, txhim kho cov cuab yeej siv tau zoo.