Yuav ua li cas xaiv diodes tsim nyog rau siab - voltage Zog Tshuab?

一, Cov yam ntxwv ntawm kev kawm thiab cov yam ntxwv tseem ceeb ntawm kev siab {{voltage diodes
1. Kev faib tawm los ntawm cov khoom siv thiab cov qauv
Silicon raws li siab - voltage xaiv ntawm ob peb txhiab lub sij hawm rov qab (microsecond theem), haum rau lub zog hluav taws xob rectification.
Silicon carbide (sic) siab - lub sij hawm rov qab mus rau nanoseconds tau ncav cuag 200 degree} zaus} zaus hloov pauv cov xwm txheej.
Iav passivated (GPP) Diode: los ntawm kev tua lub khob iav nyob rau ntawm lub khob sib txawv thiab noo noo tsis tau zoo dua, nrog ib qho hluav taws xob tsis kam ntawm 600v-1200v.
2. Kev cais los ntawm kev ua haujlwm
OSTOFTING DIODE: Hloov AC rau DC, nrog cov tsis sib xws ntawm qhov siab tshaj plaws Rectified tam sim no (yog tias) thiab rov qab rov qab sijhawm (TRR).
Fast rov qab ua hauj lwm Diode (FRD): TRD tsawg dua lossis sib npaug nrog 50ns, haum rau high- zaus scoring cov khoom siv thiab inverters.
SCHOTTKY Diode (SBD): Forward Voltage Txo (0.3-0.5V), tsis muaj kev sib txuas rov qab los ntawm 200v), tsis muaj kev sib txuas lus rov qab los ntawm cov kev sib txuas lus rov qab los ntawm cov kev sib txuas lus rov qab los ntawm kev hloov pauv.
Voltains Transient Diode (TVS): Lub sijhawm teb tsawg dua lossis sib luag, siv rau kev tiv thaiv xob laim thiab tiv thaiv kev tiv thaiv.
2, rau cov tub ntxhais tsis xaiv rau xaiv high- voltage diodes
1. Volfage resistance (vrrm / vbr)
Kev Txhais Lus: Qhov siab tshaj plaws Rov qab ua dua siab tshaj plaws Peak voletage (VRRM) yuav tsum yog 1.5-2 npaug siab dua li qhov siab tshaj plaws hluav taws xob kom tsis txhob tawg ntawm kev sib hloov.
Xaiv cov hauv paus ntsiab lus:
DC sab ntawm photovoltaic inverter: 1500v system yuav tsum muaj 1700V Diode (xws li Tíike Tianrun G3S170 series).
Rail Transit Traction System: Lub 300V system yuav tsum muaj 3300v sic diode (xws li Taike Tianrun G3S330 Series).
2. Flow muaj peev xwm (yog / IFSSM)
Kev Txhais Lus: Qhov nruab nrab ratified tam sim no (yog tias) yuav tsum yog 1.5 npaug siab dua li qhov system nruab nrab tam sim no; Lub ncov nthwv tawm tam sim no (IFSM) xav tau kev cuam tshuam kom nrawm nyob rau lub sijhawm pib lossis tsheb luv.
Xaiv cov hauv paus ntsiab lus:
Kev muaj lub cev muaj zog tsav: xaiv yog tias ntau dua lossis sib npaug rau 2 zaug ntsuas tam sim no, yog tias muaj ntau dua lossis sib npaug ntawm 10 zaug ntsuas.
Photovoltaic inverter: Xaiv yog ntau dua lossis sib npaug rau 1.5 zaug cov zis tshaj plaws tam sim no, yog tias muaj ntau dua lossis sib npaug (8/20 μ S wavvorm).
3. Hloov nrawm (TRR / tuj / tawm)
Kev Txhais Lus: lub sijhawm rov qab rov qab (TRR) txiav txim siab hloov chaw uas poob rau hauv high {{0 zaus} zaus scenarios; Lub TUJ / lub sijhawm cuam tshuam rau cov kab ke teb ceev.
Xaiv cov hauv paus ntsiab lus:
Switching power supply (>10KHZ): Xaiv cov nrawm nrawm dodes nrog Trr tsawg dua lossis sib npaug nrog 50ns (xws li asemi mur1660AC, trr {} ns ns ns).
Silicon carmide inverter: Xaiv sic dod
4. Qhov Zoo Voltage Poob (Vf)
Lus Txhais: Thaum coj mus ua, qhov voltage ntawm ob qho xaus ncaj qha cuam tshuam cov kab ke ua haujlwm.
Xaiv cov hauv paus ntsiab lus:
Tsis muaj voltage tsawg thiab xws li 48v DC systems): Yuav tsum muab rau cov schottky dongy diodes nrog VF tsawg dua lossis sib npaug nrog 0.5v.
High voltage scenerarios (xws li saum 1000v): Xaiv SIC qhov tsawg dua lossis sib npaug ntawm 2.5V, uas tuaj yeem txhim kho kev ua tau zoo los ntawm 3-5% piv rau silicon diodes.
5. Thermal Performance (TJM / RHT)
Kev txhais: Qhov ntau tshaj plaws kub tshaj plaws (TJM) Lub thermal kuj (Rth) txiav txim siab cov cua sov dissipation efficiency.
Xaiv cov hauv paus ntsiab lus:
Kev kub siab loj module: xaiv rau-247 pob khoom siv nrog Rth tsawg dua lossis sib npaug rau 0.5℃rau 0.5℃/ w.
Kaw Ib Cheeb Tsam Daim Ntawv Thov: Xaiv cov khoom siv nrog TJM ntau dua lossis sib npaug nrog 175℃thiab tshwj xeeb siv chaw.
6. Kev ntseeg tau ntawv pov thawj
Cov Qauv Tseem Ceeb:
Kev Nyab Xeeb Kev Nyab Xeeb: UL (North America), Tuv (Lub teb chaws Yelemees), CQC (Suav teb.
Kev ntsuam xyuas lub neej: kuaj rau 1000 teev siv hatrb (kub rov qab bias).
Kev tsim nyog cia siab: Zam kev zam kev siv axial plug - hauv ntim thiab ua ntej xaiv SMT ntim (xws li DFN8 × 8).
3, High Voltage Diero Kev Xaiv Kev Xaiv Cov Txheej Txheem thiab Kev Ntsuam Xyuas
1. Xaiv cov txheej txheem
Yuav tsum tsom xam cov: qhia meej cov kab ke xws li voltage, tam sim no, zaus, thiab qhov kub thiab txias.
Ntaus kev faib tawm: Xaiv Rectifier, yoo rov qab, TVs thiab lwm hom raws li kev ua haujlwm.
Parameter txuam: tshuaj ntsuam cov khoom siv sib tw raws cov txheej txheem tseem ceeb raws li cov tub ntxhais tseem ceeb (voltage resistance, tam sim no ntws, nrawm).
Derating qauv: Voltage muab tso los ntawm 1.5-2 zaug, tam sim no sib txawv los ntawm 1.2-1.5 zaug.
Kev ntseeg tau qhov tseeb: Txheeb xyuas qhov tseeb ntawm cov cuab yeej los ntawm nres (kev ntsuas lub neej ntev).
2. Cov ntawv thov cov ntawv thov
Rooj plaub 1: DC Sab Kev Tiv Thaiv ntawm photovoltaic inverter
Qhov yuav tsum tau: Lub kaw lus 1500v yog qhov yuav tsum tau ua kom muaj kev ntxhov siab tam sim no ntawm 20ka nrog kev ua tau zoo ntawm ntau dua lossis sib npaug ntawm 98%.
Txoj Haujlwm Xaiv:
Rectifier: Taike Tianrun 1700V / 50A SIC DIODE (G3S750P), VF {} v, trr=8 ns.
Kev Tiv Thaiv Surge: Toshiba HN1D05Fe TV Diode (Vr=400 v, IPP 05 ka).
Cov nyhuv: cov txheej txheem ua tau zoo zuj zus los ntawm 2%, Surge kev tiv thaiv lub sijhawm tsawg dua los yog sib luag rau 1ns.
Rooj plaub 2: kev tsheb ciav hlau hloov mus
Qhov yuav tsum tau: 3300v system, hloov zaus 5kHz, yuav tsum tau tiv thaiv 100 {3 3}} Circuit Court tam sim no.
Txoj Haujlwm Xaiv:
Rectification Module: Taike Tianrun 3300V / 50A Sic Diode (G3S33050p), ifsm {4} Ka.
Fast Rov qab tau Diode: Asemi Mur3060PT (600v / 30A, Trr =35 ns).
Cov nyhuv: Lub kaw lus ntim yog txo los ntawm 30%, thiab hloov cov poob yog txo los ntawm 40%.
4, yav tom ntej cov qauv hauv siab nyob rau hauv lub siab voltage diode
1. Cov lus lag luam nrov ntawm dav bandgap semiconductors
Sic diodes muaj cov hluav taws xob ntau tshaj 300v thiab rau pem hauv ntej voltage poob mus rau 1.5v, ua rau lawv haum rau nruab nrab voltage contribution salt 80kv.
Gallium nitride (Gan) diodes tau nkag mus rau lub siab - voltage teb, nrog lub sijhawm rov qab rov qab los tsawg dua 1ns.
2. Cov Cuab Yeej Muaj Tseeb Xaiv
Tus neeg xa khoom muab cov platform sim online (xws li Taike Tianrun Sic Xaiv), uas yuav pom zoo cov cuab yeej ua ke tom qab cov qauv ua ke.
Cov thev naus laus zis thev naus laus zis yog siv los twv xyuas lub neej thiab tsis ua tiav cov khoom siv hauv qab kev ua haujlwm dhau.
3. Modularization thiab Kev Sib Koom Tes
Diode thiab igbet / Mosfet tau muab tso ua ke rau ib qho module (xws li infineon easypack series), injectifying system tsim.
Nias POB NTIM ETHENT Qhov poob siab tsis kam thiab sov dissipation ua tau zoo ntawm high {{voltage cov khoom siv.