Txoj kev hloov hluav taws xob hloov hluav taws xob ua haujlwm Muaj peb lub zog hloov hluav taws xob xav tau.
Txoj haujlwm ua haujlwm ntawm kev hloov hluav taws xob
Cov txheej txheem ua haujlwm ntawm kev hloov hluav taws xob hloov pauv tau yooj yim to taub. Nyob rau hauv linear fais fab mov, lub hwj chim transistor yog tsim los ua hauj lwm nyob rau hauv ib tug linear hom. Tsis zoo li cov khoom siv hluav taws xob linear, pwm hloov hluav taws xob ua rau lub hwj chim transistor ua haujlwm hauv lub xeev thiab tawm. Nyob rau hauv lub xeev, cov khoom volt-ampere ntxiv rau lub hwj chim transistor yog qhov me me (thaum nws qhib, qhov hluav taws xob qis thiab qhov tam sim no loj; thaum nws raug tua, qhov hluav taws xob yog siab thiab tam sim no me me) / cov khoom volt-ampere ntawm lub tshuab hluav taws xob yog lub zog semiconductor poob tshwm sim ntawm lub cuab yeej. Piv nrog rau cov khoom siv hluav taws xob tawm, cov txheej txheem ua haujlwm tau zoo dua ntawm pwm hloov hluav taws xob yog ua tiav los ntawm "taws", uas yog, chopping lub input DC voltage mus rau hauv lub mem tes voltage uas nws amplitude yog sib npaug rau cov 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 nce lossis nqis los ntawm lub tshuab hloov pauv. Los ntawm kev nce tus naj npawb ntawm cov windings theem nrab ntawm lub transformer, tus naj npawb ntawm cov zis voltage pawg tuaj yeem nce ntxiv. Thaum kawg, cov AC waveforms no tau kho thiab lim kom tau txais DC tso zis voltage. Lub hom phiaj tseem ceeb ntawm tus maub los yog ua kom cov zis hluav taws xob ruaj khov, thiab nws txoj haujlwm yog zoo ib yam li cov kab ntawv ntawm tus maub los. Qhov ntawd yog hais tias, qhov kev ua haujlwm thaiv, kev siv hluav taws xob thiab kev ua yuam kev amplifier ntawm tus maub los tuaj yeem tsim los ua tib yam li ntawm cov kab hluav taws xob regulator. Qhov sib txawv ntawm lawv yog tias qhov tso zis ntawm qhov yuam kev amplifier (yuam qhov voltage) dhau los ntawm qhov voltage / mem tes dav hloov dua siab tshiab ua ntej tsav lub hwj chim transistor. Muaj ob hom kev ua haujlwm tseem ceeb ntawm kev hloov hluav taws xob: kev hloov pauv mus rau pem hauv ntej thiab txhawb kev hloov pauv. Txawm hais tias qhov kev npaj ntawm lawv ntau qhov chaw me me, cov txheej txheem ua haujlwm sib txawv heev, thiab txhua tus muaj nws tus kheej zoo hauv cov ntawv thov tshwj xeeb.
Peb tej yam kev mob ntawm switching fais fab mov
hloov
Lub zog hluav taws xob ua haujlwm hauv lub xeev hloov pauv tsis yog lub xeev linear
siab zaus
Cov khoom siv hluav taws xob hluav taws xob ua haujlwm ntawm cov khoom siv hluav taws xob ntau dua li cov zaus qis ze rau cov khoom siv ntau zaus
DC
Lub tshuab hluav taws xob hloov hluav taws xob tso tawm DC hloov AC thiab tuaj yeem tso zis ntau zaus AC xws li hluav taws xob transformers
Classification ntawm switching fais fab mov
Hauv kev hloov pauv hluav taws xob thev naus laus zis, tib neeg tab tom tsim cov khoom siv hluav taws xob muaj feem cuam tshuam thiab hloov pauv zaus hloov tshuab tib lub sijhawm. Ob leeg txhawb ib leeg los txhawb lub zog hloov pauv mus rau lub teeb, me me, nyias, tsis tshua muaj suab nrov, muaj kev ntseeg siab, kev loj hlob nyob rau hauv cov kev taw qhia ntawm anti-jamming. Hloov cov khoom siv hluav taws xob tuaj yeem muab faib ua ob pawg: AC / DC thiab DC / DC. Kuj tseem muaj AC / ACDC / AC xws li inverters. DC / DC converters tam sim no tau hloov kho, thiab cov txheej txheem tsim thiab cov txheej txheem tsim khoom tau ua tiav hauv tsev thiab txawv teb chaws. Standardization tau raug lees paub los ntawm cov neeg siv, tab sis lub modularization ntawm AC / DC, vim nws tus yam ntxwv, ntsib ntau nyuaj technical thiab txheej txheem tsim teeb meem nyob rau hauv tus txheej txheem ntawm modularization. Cov qauv thiab cov yam ntxwv ntawm ob hom kev siv hluav taws xob hloov pauv tau piav qhia hauv qab no.
