Qhov zoo thiab qhov tsis zoo ntawm Schottky diode
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Qhov zoo thiab qhov tsis zoo ntawm Schottky diode
Qhov zoo
SBD muaj qhov zoo ntawm kev hloov pauv ntau zaus thiab qis rau pem hauv ntej, tab sis nws qhov rov qab tawg qhov hluav taws xob yog qhov qis, feem ntau tsis siab tshaj 60V, thiab qhov siab tshaj plaws tsuas yog txog 100V, uas txwv nws cov ntawv thov ntau yam. Piv txwv li, nyob rau hauv SMPS thiab PFC circuits, lub nruam tam sim no diode ntawm lub hwj chim hloov ntaus ntawv, lub siab zaus rectifier diode ntawm ntau tshaj 100V rau transformer theem nrab, lub siab ceev diode ntawm 600v -1.2kv rau RCD tsis Circuit Court thiab cov 600V diode rau PFC boost Circuit Court, tsuas yog siv ceev ceev epitaxial diode (Fred) thiab ultra ceev rov qab diode (ufrd) yog siv. Lub sijhawm rov qab los ntawm TRR ntawm ufrd kuj tseem dhau 20ns, uas tsis tuaj yeem ua tau raws li qhov xav tau ntawm SMPS ntawm 1MHz ~ 3MHz hauv thaj chaw xws li chaw nres tsheb. Txawm hais tias SMPS nrog 100kHz nyuaj hloov, vim qhov loj conduction poob thiab hloov pauv ntawm ufrd thiab lub plhaub siab kub, yuav tsum muaj lub tshuab hluav taws xob loj, uas ua rau qhov ntim thiab qhov hnyav ntawm SMPS, uas tsis yog nyob rau hauv txoj kab nrog txoj kev loj hlob ntawm miniaturization. thiab nyias. Yog li ntawd, txoj kev loj hlob ntawm high voltage SBD saum 100V yeej ib txwm yog ib lub ntsiab lus tshawb fawb thiab ib tug kub lub ntsiab lus. Nyob rau hauv xyoo tas los no, SBD tau ua tiav kev vam meej. 150V thiab 200V high-pressure SBD tau muab tso rau hauv kev ua lag luam, thiab ntau tshaj 1kV SBD ua los ntawm cov ntaub ntawv tshiab kuj tau ua tiav tiav, yog li txhaj tshuaj tshiab thiab tseem ceeb rau hauv nws daim ntawv thov.
ua tsis tau
Qhov loj tshaj qhov tsis zoo ntawm Schottky diode yog nws qhov qis rov qab tsis zoo thiab qhov rov qab xau loj tam sim no. Piv txwv li, qhov ntsuas rov qab tsis zoo voltage ntawm Schottky diode ua los ntawm silicon thiab hlau tsuas yog 50V, thaum tus nqi ntawm qhov rov qab xau tam sim no yog qhov zoo ntawm qhov kub thiab txias, uas yooj yim kom nce nrawm nrog qhov kub thiab txias. Hauv kev tsim qauv tsim, peb yuav tsum tau them sai sai rau qhov kev txhawj xeeb zais ntawm nws cov thermal runaway. Txhawm rau zam cov teeb meem saum toj no, qhov rov qab tsis zoo ntawm Schottky diode yuav tsawg dua li nws cov nqi ntsuas hauv kev siv tiag. Txawm li cas los xij, cov thev naus laus zis ntawm Schottky diodes kuj tau txhim kho, thiab nws qhov kev ntsuas qhov hluav taws xob rov qab tuaj yeem ncav cuag 200V.