Lub hauv paus ntsiab lus ua haujlwm ntawm kev hloov hluav taws xob thiab kev faib tawm
Cov txheej txheem ua haujlwm ntawm kev hloov hluav taws xob hloov pauv tau yooj yim to taub, hauv cov khoom siv hluav taws xob linear, cia lub hwj chim transistor ua haujlwm nyob rau hauv hom linear, nrog rau cov khoom siv hluav taws xob linear txawv ntawm pWM hloov hluav taws xob yog cia lub zog transistor ua haujlwm. nyob rau hauv lub xeev thiab off-xeev, nyob rau hauv ob lub xeev no, ntxiv rau lub hwj chim transistor ntawm cov khoom volt-ampere yog heev me me (nyob rau hauv lub xeev, lub voltage yog tsawg, tam sim no loj; off-state, qhov voltage yog siab, tam sim no me me) / fais fab ntaus ntawv Cov khoom volt-ampere ntawm lub hwj chim ntaus ntawv yog qhov poob tshwm sim ntawm lub hwj chim semiconductor ntaus ntawv. Piv nrog rau cov khoom siv hluav taws xob tawm, pWM hloov cov khoom siv hluav taws xob ua haujlwm tau zoo dua los ntawm "taws", piv txwv li chopping lub input DC voltage rau hauv pulses ntawm amplitude sib npaug rau qhov input voltage amplitude. Lub luag haujlwm lub voj voog ntawm cov mem tes yog hloov kho los ntawm tus maub los ntawm lub zog hloov hluav taws xob. Thaum cov input voltage raug txiav mus rau hauv AC square nthwv dej, nws qhov amplitude tuaj yeem raug tsa los yog qis dua los ntawm lub tshuab hloov pauv. Tus naj npawb ntawm cov zis hluav taws xob pab pawg tuaj yeem nce ntxiv los ntawm kev nce tus naj npawb ntawm cov windings thib ob hauv lub transformer. Thaum kawg cov AC waveforms tau kho thiab lim kom tau txais DC cov zis hluav taws xob. Lub hom phiaj tseem ceeb ntawm tus maub los yog ua kom cov zis voltage ruaj khov thiab cov txheej txheem zoo ib yam li cov kab hluav taws xob ntawm cov maub los. Qhov no txhais tau hais tias cov kev ua haujlwm ntawm cov tswj hwm, qhov kev siv hluav taws xob thiab qhov yuam kev amplifier, tuaj yeem tsim tau tib yam li cov kab hluav taws xob regulator. Qhov txawv yog tias qhov tso zis ntawm qhov yuam kev amplifier (qhov yuam kev voltage) dhau los ntawm lub zog hluav taws xob / mem tes dav hloov pauv chav ua ntej tsav lub hwj chim raj. Hloov cov khoom siv hluav taws xob muaj ob hom kev ua haujlwm tseem ceeb: kev hloov pauv mus rau pem hauv ntej thiab txhawb kev hloov pauv. Txawm hais tias kev npaj ntawm lawv cov khoom sib txawv me ntsis, cov txheej txheem kev khiav hauj lwm sib txawv heev thiab txhua tus muaj nws tus kheej zoo rau ib daim ntawv thov tshwj xeeb.
Kev faib tawm ntawm cov khoom siv hluav taws xob hloov
Cov neeg nyob rau hauv lub tshav pob ntawm switching fais fab mov technology yog ib sab ntawm txoj kev loj hlob muaj feem xyuam rau lub hwj chim hluav taws xob cov cuab yeej, sab ntawm txoj kev loj hlob ntawm switching inverter technology, ob qho tib si txhawb ib leeg los txhawb lub switching fais fab mov rau ntau tshaj ob tug lej loj hlob tus nqi. txhua xyoo ntawm lub teeb, me me, nyias, tsis tshua muaj suab nrov, muaj kev ntseeg siab, tiv thaiv kev cuam tshuam ntawm kev loj hlob. Kev hloov hluav taws xob tuaj yeem muab faib ua AC / DC thiab DC / DC ob pawg, kuj tseem muaj AC / ACDC / AC xws li inverter DC / DC converter tau tam sim no ua tiav cov qauv, thiab cov txheej txheem tsim tshuab thiab cov txheej txheem tsim khoom hauv tsev thiab txawv teb chaws tau matured. thiab standardised, thiab tau lees paub los ntawm cov neeg siv, tab sis cov modularity ntawm AC / DC, vim nws tus kheej cov yam ntxwv ua rau cov txheej txheem ntawm modularity, ntsib ib tug complex technology thiab txheej txheem tsim teeb meem. Cov qauv thiab cov yam ntxwv ntawm ob hom kev siv hluav taws xob hloov pauv tau piav qhia hauv qab no.
