Yuav ua li cas cov tuam txhab hluav taws xob tsim cov tsev qiv ntawv xaiv rau diodes?

Ib, Architecture tsim ntawm xaiv cov qauv tsev qiv ntawv: plaub- qauv sib xyaw ua ke
Raws li JEDEC cov qauv thiab cov kev cai tshwj xeeb ntawm kev lag luam hluav taws xob, nws raug nquahu kom siv plaub - qhov kev faib tawm qhov nruab nrab ntawm "kev thov cov khoom siv hluav taws xob tsis zoo ntim daim ntawv qib kev ntseeg tau":

Daim ntawv thov scenario dimension
Fais fab hluav taws xob converters: tsom rau lub sij hawm rov qab (<50ns) and surge resistance (>10 npaug tam sim no)
Tshiab lub zog tsim system: ua ntej xaiv Schottky diodes nrog qis rau pem hauv ntej voltage poob (VF<0.5V)
Ultra high voltage transmission: must meet the high voltage withstand capacity (>10kV) ntawm IEC 60071-1 tus qauv
Energy storage system: Pay attention to junction temperature characteristics (Tjmax>175 ℃) and cycle life (>100000 cycles)
Dimension ntawm hluav taws xob parameter
Qhov tseem ceeb parameter matrix yuav tsum muaj xws li: VRRM (rov qab repetitive ncov voltage), IF (AV) (nruab nrab rectified tam sim no), IR (rov qab leakage tam sim no), trr (rov qab lub sij hawm), Cj (hluav taws xob capacitance)
Parameter redundancy tsim: VRRM Ntau dua lossis sib npaug rau 1.5 x siab tshaj qhov rov qab voltage ntawm lub kaw lus, IF (AV) Ntau dua lossis sib npaug rau 1.2 x siab tshaj qhov kev khiav haujlwm tam sim no ntawm lub kaw lus
Cov ntaub ntawv kawm ntawm lub tshuab hluav taws xob cua: Los ntawm kev nce lub diode VRRM los ntawm 1200V rau 1600V, cov khoom siv tsis ua haujlwm raug txo los ntawm 82%
Encapsulation daim ntawv dimension
Lub zog yuav tsum tau muaj zog: Txais DPAK, TO-247 thiab lwm yam khoom cua sov dissipation optimized ntim
Qhov chaw txwv qhov xwm txheej: siv SOD-123, 0402 thiab lwm cov pob micro
Ib puag ncig kev vibration: nyiam xaiv ntsaws- hauv pob khoom nrog tus pin reinforcement (xws li DO-201AD)
Reliability theem dimension
Qib Tub Rog: Ua tau raws li MIL-STD-883 tus qauv thiab tsim nyog rau nuclear fais fab nroj tsuag tswj txee
Qib muaj: AEC-Q101 tau ntawv pov thawj, haum rau cov tshuab hloov hluav taws xob cua
Kev lag luam qib: tsuas yog siv tau rau cov tshuab hluav taws xob sab hauv tsev
2, Cov txheej txheem xaiv tseem ceeb: Rau qib kev txiav txim siab -txoj kev ua
1. Kev txheeb xyuas qhov yuav tsum tau ua
Siv ib qho photovoltaic inverter ua piv txwv:

Input voltage ntau: 400-1000VDC
Cov zis tam sim no: 50A
Ua haujlwm zaus: 20kHz
Environmental kub: -40℃~ +85 degree
2. Ntaus hom sib txuam
Xaiv raws li kev ua haujlwm zaus:

<1kHz: Ordinary rectifier diode (1N4007)
1kHz-50kHz: Fast Recovery Diode (MUR860)
50kHz: Schottky diode (SS510)

3. Kev txheeb xyuas qhov ntsuas ntsuas ntsuas
Qhov tseem ceeb parameter xam:

Rov qab voltage: VRRM Ntau dua lossis sib npaug rau 1.5 × 1000V=1500V
Nruab nrab tam sim no: IF (AV) Ntau dua lossis sib npaug rau 1.2 × 50A=60A
Kev suav poob: Ptotal=VF × IF + trr × f × Vr ² (yuav tsum tau<50W)
4. Kev siv lub derating tsim
Txais yuav peb -theem derating nkhaus:

Rated voltage: Ua haujlwm voltage Tsawg dua lossis sib npaug rau 60% VRRM
Rated tam sim no: Ua haujlwm tam sim no Tsawg dua lossis sib npaug li 70% IF (AV)
Qhov kub thiab txias: Tj Tsawg dua lossis sib npaug rau 80% Tjmax
5. Kev ntsuam xyuas tus neeg muag khoom
Tsim ib qho kev ntsuas ntsuas uas suav nrog 6 qhov ntev:

Quality System: ISO/TS 16949 Certification
Inefficiency: FIT tus nqi<100
Kev xa khoom muaj peev xwm: L / T<8 weeks
Tus nqi sib tw: Tus nqi hloov pauv<± 5%
Kev Pabcuam Kev Pabcuam: Pab Pawg FAE hauv cheeb tsam
Sustainability: Ua raws li RoHS / REACH cov qauv
6. Kev tswj lub neej
Siv tag nrho cov txheej txheem saib xyuas:

Kev xaiv theem: Tsim cov qauv ntsuas kev ntxhov siab ntawm cov cuab yeej
Kev sim ntau lawm theem: Ua HALT (siab acceleration life test)
Ntau lawm theem: Siv SPC (Statistical Process Control)
Kev khiav hauj lwm thiab txij nkawm theem: Tsim kom muaj kev ntsuam xyuas kev noj qab haus huv algorithm

3, Cov ntaub ntawv thov raug
Case 1: Xaiv cov diodes rau offshore cua fais fab converters
A 5MW offshore cua turbine inverter Ameslikas siv MUR1560 ceev rov qab diode, tab sis nyob rau hauv ntsev tsuag ib puag ncig:

Rov qab to tam sim no surges 300%
Qhov ntsuas kub ntawm qhov sib txuas tshaj li tus qauv los ntawm 25 degree
Kev ua tsis tiav txhua xyoo nce mus txog 12%
Los ntawm kev xaiv optimization:

Hloov mus rau SiC JBS diode (C4D20120H)
Ntxiv nickel plating txheej ntim
Optimize tshav kub dissipation txoj kev tsim
Tom qab siv cov nyhuv:
Kev ua haujlwm tau nce 1.8%
MTBF nce los ntawm 4000h rau 25000h
65% txo cov nqi tu
Case 2: Bidirectional DC / DC Converter rau Zog Cia System
Thawj txoj kev npaj rau 100kW / 200kWh lub zog cia:

Siv 10 1N5822 Schottky diodes nyob rau hauv parallel
Kev faib tawm tsis sib xws (qhov sib txawv siab tshaj 40%)
Optimization Plan:

Hloov mus rau ib qho STPS80SM120Y (80A / 120V)
Ua kom cov kev sib koom tam sim no los ntawm 0.1 Ω
Optimize PCB layout
Tom qab siv cov nyhuv:
Kev sib koom tam sim no yuam kev<5%
Kev ua haujlwm tau zoo tau nce los ntawm 92% mus rau 95.5%
Txo qhov ntim los ntawm 40%
4, Nruam optimization mechanism
Cov ntaub ntawv kaw -loop system
Tsim kom muaj "kev xaiv cov lus qhia tawm tswv yim" cov ntaub ntawv txuas:
Kev sim ntau lawm theem: Sau ntau tshaj 1000 cov ntaub ntawv xeem
Ua haujlwm thiab txij nkawm theem: Sau ntau tshaj 5000 teev ntawm cov ntaub ntawv ua haujlwm
Optimizing xaiv cov qauv los ntawm kev kawm tshuab
Technology iteration tswj
Tsim ib txoj hauv kev rau cov cuab yeej hloov tshiab:
Lub sij hawm luv luv (1-3 xyoos): SiC/GaN ntaus ntawv nkag mus rau 30%
Lub sijhawm nruab nrab (3-5 xyoos): Ua tiav AEC-Q200 ntawv pov thawj rau tag nrho cov khoom siv
Lub sij hawm ntev (5-10 xyoo): Tsim kom muaj kev ywj pheej thiab tswj tau lub zog hluav taws xob ntau lawm kab
Kev tswj hwm kev paub
Tsim ib lub hauv paus kev paub 3D:
Kab rov tav: Npog 12 pawg loj ntawm cov khoom siv fais fab
Vertical: suav nrog tag nrho cov txheej txheem ntawm kev tsim qauv xaiv kev ntsuas tsis ua haujlwm
Qhov tob: Sau ntau tshaj 200 daim ntawv thov raug