Yuav ua li cas xaiv Schottky diodes rau cov khoom siv kho mob hnav?

1, Cov ntsiab lus tseem ceeb: Ua kom raug raws li kev siv hluav taws xob tsawg thiab kev xav tau ntawm cov khoom siv coj los siv
1. Forward voltage poob (VF): txiav txim siab zog conversion efficiency
Lub pem hauv ntej voltage poob ntawm Schottky diodes ncaj qha cuam tshuam rau lub zog noj ntawm circuits. Piv txwv li, nyob rau hauv 5V fais fab rectification, yog SR360 (3A / 60V) nrog VF=0.4V yog siv, qhov kev ua tau zoo tuaj yeem txhim kho los ntawm 5%, txuag ze li ntawm 50% ntawm cov cua sov tsim piv rau cov raj silicon. Rau cov khoom siv coj los siv xws li cov hlua tes ntse thiab cov ntsuas ntshav qabzib, lawv lub peev xwm roj teeb feem ntau yog nyob nruab nrab ntawm 100-500mAh, thiab qis VF diodes tuaj yeem txuas ntxiv lub roj teeb lub neej. Siv lub plawv ntsuas ntsuas ntsuas raws li piv txwv, yog siv SS14F (1A/40V) nrog VF=0.3V, piv rau cov raj silicon nrog VF=0.7V, lub zog siv tau txo los ntawm 57%, thiab lub sijhawm siv ib zaug xwb yuav luag ob npaug.

2. Rov qab xau tam sim no (IR): cuam tshuam qhov kev ntseeg siab ntawm qis- tsim hluav taws xob
Qhov rov qab xau tam sim no nce exponentially nrog qhov kub thiab txias, uas tuaj yeem ua rau lub cev tsis muaj zog lossis lub roj teeb nws tus kheej tawm hauv qhov kub thiab txias (xws li thaum hnav los ntawm tib neeg lub cev). Piv txwv li, BAT54S (0.2A / 30V) muaj IR ntawm 5 μ A ntawm 25 degree, tab sis tuaj yeem nce siab tshaj 100 μ A ntawm 85 degree. Rau cov khoom siv ECG uas yuav tsum tau saib xyuas lub sijhawm ntev, kev siv diodes nrog IR siab tuaj yeem ua rau lub hauv paus ntawm qhov ntsuas thiab cuam tshuam cov ntaub ntawv raug. Yog li ntawd, cov qauv IR qis (xws li RB531XN, IR)= 0.03mA@10V ) Ntau qhov tsim nyog rau cov xwm txheej rhiab heev.

3. Rov qab Voltage Endurance (VR): Ua kom muaj kev nyab xeeb ntawm Circuit Court
Wearable devices feem ntau siv cov khoom siv hluav taws xob tsawg (3.3V-5V), tab sis kev hloov pauv hloov pauv (xws li hluav taws xob hluav taws xob lossis hluav taws xob hloov pauv) yuav tsum xav txog. Piv txwv li, nyob rau hauv USB PD ceev them interface, MBR3045PT (30A / 45V) tuaj yeem tiv taus 12V / 3A cov zis nrog lub tshav kub poob ntawm tsuas yog 1.2W, ua rau nws tsim nyog rau kev tsim hluav taws xob me me. Rau cov khoom siv kho mob (xws li cov twj insulin), nws yog ib qho tsim nyog yuav tsum xaiv tus qauv nrog VR Ntau dua lossis sib npaug li 2 npaug ntawm qhov ua haujlwm voltage (xws li SS56, 5A / 60V, VR=60V) kom tsis txhob muaj hluav taws xob tawg ua rau lub voj voog.

4. Ntim loj thiab thermal tsis kam: ntsuas kev ua tau zoo thiab qhov chaw txwv
Wearable li yog qhov tsis tshua muaj siab rau PCB cheeb tsam thiab tuab. Piv txwv li, Dior's SDT2U60CP3 siv X3-DSN1406-2 pob, uas tsuas yog 3.4% qhov loj ntawm cov pob khoom SMB, txo qhov hnyav los ntawm 99%, thiab ua tiav qhov poob qis nrog VF=0.51V. Rau cov qauv siv high-density xws li ntse earplugs, pob SMAF (xws li SS14F) muaj qhov tuab ntawm 0.5 hli nkaus xwb thiab tuaj yeem txuas ncaj qha rau ntawm lub rooj tsav xwm hloov tau yooj yim (FPC), txuag qhov chaw thaum txhim kho cov cua sov.

2, Daim ntawv thov scenario adaptation: sib txawv xaiv los ntawm kev tswj fais fab rau kev tiv thaiv teeb liab
1. Kev tswj fais fab: kev kho kom zoo thiab txuas ntxiv tam sim no
Hloov fais fab mov (DC-DC converter): Xaiv tus qauv nrog VF qis thiab rov qab lub sij hawm luv luv (trr). Piv txwv li, OBC charger rau lub zog tshiab tsheb siv MBR20100CT (20A/100V), uas txo qhov siab - zaus rectification poob los ntawm 40% thiab txhawb kev hloov zaus tshaj 100kHz, txo qhov loj ntawm inductor. Hauv cov khoom siv coj los siv, cov thev naus laus zis zoo sib xws tuaj yeem siv rau wireless charging modules txhawm rau txhim kho lub zog hloov hluav taws xob.
Lithium roj teeb tiv thaiv Circuit Court: Nws yuav tsum tau tiv taus siab tam sim no pulses (xws li them overcurrent tiv thaiv). SBR10U30CT (10A / 30V) txais cov qauv trench nrog lub peev xwm tam sim no ntawm 40A, uas tsim nyog rau kev tiv thaiv lithium roj teeb pob los ntawm luv luv - cuam tshuam hauv Circuit Court.
2. Kev kuaj pom lub teeb liab: tsis tshua muaj suab nrov thiab siab rhiab heev
Bioelectric signal acquisition (ECG/EEG): Tsawg junction capacitance (Cj) thiab qis IR qauv yuav tsum raug xaiv los txo cov teeb liab distortion. Piv txwv li, BAT46WS (0.15A/100V) nrog Cj=2pF ntawm 1MHz tuaj yeem tiv thaiv siab - nrov nrov thiab txhim kho cov teeb liab - rau - suab nrov piv ntawm electrocardiogram signals.
Optical sensor (ntshav oxygen / lub plawv dhia): yuav tsum tau sib phim nrog LED tsav tsheb Circuit Court. Piv txwv li, hauv kev tsav tsheb ntawm LED ntsuab (520nm), siv Schottky diode nrog VF=0.3V tuaj yeem txo qhov tsav tsheb thiab txuas ntxiv lub neej ntawm LED.
3. Kev tiv thaiv Circuit Court: tiv thaiv kev sib txuas thiab ESD tiv thaiv
Kev sib txuas tiv thaiv kev thim rov qab: Xaiv tus qauv nrog VR Ntau dua lossis sib npaug li 2 npaug ntawm cov khoom siv hluav taws xob. Piv txwv li, nyob rau hauv 5V input Circuit Court, siv SS12 (1A/40V) tuaj yeem tiv thaiv diode tawg thaum lub hwj chim rov qab, thiab qhov hluav taws xob poob ntawm VF=0.55V muaj kev cuam tshuam me me rau hauv Circuit Court.
Kev tiv thaiv ESD: Nws yuav tsum tau siv ua ke nrog TVS diodes. Piv txwv li, nyob rau hauv lub USB interface, siv SMBJ5.0CA (5V TVS) nyob rau hauv parallel nrog SS14F (1A/40V) tuaj yeem tiv taus 8kV tiv tauj tawm thiab tiv thaiv qhov qis qis.

3, Kev Xaiv Kev Ua Haujlwm: Los ntawm Parameter Sib Piv rau Kev Siv Khoom Siv Zoo
1. Parameter Comparison Table: Kev soj ntsuam kev ua tau zoo ntawm cov qauv tsim
Qauv VF (@ 1A) IR (@ 25 degree) VR (V) Ntim Daim Ntawv Thov Scenario
SS14F 0.55V 300 μ A 40V SMAF fais fab rectifier, tiv thaiv kev sib txuas
BAT54S 0.3V 5 μ A 30V SOT -23 teeb pom kev pom, hluav taws xob qis
MBR20100CT 0.4V 1mA 100V TO-220 High Voltage Rectification, Tsav Tsav
SDT2U60CP3 0.51V 10 μ A 60V X3-DSN1406-2 ultra compact khoom
2. Supply Chain Optimization: Ntsuas tus nqi thiab kev ntseeg siab
Daim ntawv pov thawj lub tsheb: Rau cov khoom siv kho mob (xws li implantable sensors), nws yog ib qho tsim nyog yuav tau xaiv tus qauv uas tau dhau AEC-Q101 ntawv pov thawj (xws li SK34L, 3A/40V) kom ruaj khov ua haujlwm nyob rau hauv ib puag ncig ntawm -40℃mus rau 150℃.
Ntau qhov chaw muab khoom: Tsis txhob muaj kev pheej hmoo ntawm ib tus neeg muag khoom. Piv txwv li, SS14F yog tsim los ntawm ntau lub tuam txhab xws li Heketai thiab Ansenmei, thiab tuaj yeem hloov pauv cov saw hlau txuas.
Kev tswj hwm lub neej: Ua ntej xaiv cov qauv paub tab (xws li 1N5819, 1A / 40V) kom tsis txhob tsim cov kev hloov pauv vim kev tsim khoom.