Hloov fais fab module DC chopping
Lub tshuab hluav taws xob hloov hluav taws xob yog lub ntim ntim ntawm cov khoom sib cais ntawm cov khoom siv hluav taws xob hloov hluav taws xob, ua rau lub ntim me me thiab ntau dua lub zog ceev module fais fab mov. Nws sab hauv Circuit Court kuj yog lub zog hloov hluav taws xob.
piav qhia luv luv
Hloov cov khoom siv hluav taws xob tuaj yeem muab faib ua ob pawg: AC / DC thiab DC / DC. DC / DC converters tam sim no tau ua tiav modularization, thiab cov txheej txheem tsim tshuab thiab cov txheej txheem tsim khoom tau paub tab thiab tsim qauv hauv tsev thiab txawv teb chaws, thiab tau lees paub los ntawm cov neeg siv khoom. Txawm li cas los xij, lub modularization ntawm AC / DC, vim nws tus kheej cov yam ntxwv, ntsib ntau txoj kev thiab kev tsim teeb meem hauv cov txheej txheem ntawm modularization.
dc kev
DC / DC hloov dua siab tshiab yog cov txheej txheem ntawm kev hloov pauv DC qhov hluav taws xob ruaj khov rau hauv qhov sib txawv DC voltage, tseem hu ua DC chopping. Muaj ob txoj hauv kev uas cov choppers ua haujlwm: ib qho yog ua kom lub mem tes dav modulation hom Ts tsis hloov thiab hloov T (universal), thiab lwm yam yog ua kom lub zaus hloov kho hom T tsis hloov thiab hloov T (nruab nrab cuam tshuam). Cov circuits tshwj xeeb tau muab faib ua pawg hauv qab no:
(1) Buck Circuit Court - ib tug phaw chopper nrog qhov nruab nrab tso zis voltage Uo tsawg tshaj li qhov input voltage Ui thiab tib polarity.
(2) Boost Circuit Court - boost chopper, nrog rau qhov nruab nrab tso zis voltage Uo ntau tshaj qhov input voltage Ui thiab tib polarity.
(3) Buck Boost Circuit Court - ib pob los yog boost chopper nrog qhov nruab nrab qhov hluav taws xob tso zis Uo ntau dua lossis tsawg dua li qhov input voltage Ui, opposite polarity, thiab inductive kis tau tus mob.
(4) Cuk Circuit Court - ib tug phaw los yog boost chopper nrog ib tug tso zis nruab nrab voltage Uo ntau tshaj los yog tsawg tshaj li input voltage UI, opposite polarity, thiab capacitor kis tau tus mob.
AC / DC
AC / DC hloov dua siab tshiab yog cov txheej txheem ntawm kev hloov AC rau DC, thiab cov kev taw qhia fais fab tuaj yeem ua tau bidirectional. Lub hwj chim ntws los ntawm lub hwj chim qhov chaw mus rau lub load yog hu ua "rectification", thiab lub hwj chim ntws los ntawm lub load mus rau lub hwj chim qhov chaw yog hu ua "active inverter". AC / DC converter input yog 50/60Hz AC zog. Vim qhov xav tau kev kho thiab lim dej, cov lim dej loj loj yog qhov tseem ceeb. Nyob rau tib lub sijhawm, vim yog cov qauv kev nyab xeeb (xws li UL, CCEE, thiab lwm yam) thiab cov kev txwv ntawm EMC cov lus qhia (xws li IEC, FCC, CSA), EMC lim thiab siv cov khoom siv uas ua tau raws li cov qauv kev nyab xeeb yuav tsum tau ntxiv rau cov khoom siv. AC input sab, uas txwv qhov miniaturization ntawm AC / DC fais fab mov ntim. Tsis tas li ntawd, vim muaj qhov muaj zog hauv siab, high-voltage Qhov kev txiav txim ntawm cov hloov pauv tam sim no nce qhov nyuaj ntawm kev daws teeb meem EMC electromagnetic compatibility, uas tso siab rau cov kev xav tau siab rau kev tsim cov khoom siv hauv high-density installation circuits. Vim tib lub laj thawj, qhov hluav taws xob siab thiab cov hluav taws xob siab tam sim no nce kev siv hluav taws xob thiab txwv cov txheej txheem modularization ntawm AC / DC converters. Yog li ntawd, nws yog ib qho tsim nyog yuav tau txais kev siv lub zog ua kom zoo tshaj plaws tsim qauv kom ua tiav qee qhov kev txaus siab hauv nws txoj haujlwm ua haujlwm.
Kev hloov pauv AC / DC tuaj yeem muab faib ua ib nrab yoj Circuit Court thiab puv nthwv dej raws li txoj kev xaim ntawm lub voj voog. Raws li tus naj npawb ntawm lub zog theem, nws tuaj yeem muab faib ua ib theem, peb theem, thiab multiphase. Raws li kev ua haujlwm quadrant ntawm lub voj voog, nws tuaj yeem muab faib ua ib lub quadrant, ob lub quadrant, peb quadrant, thiab plaub quadrant.
