Nta ntawm monolithic switching fais fab mov
(1) TOPSWitch-II suav nrog oscillator, yuam kev amplifier, mem tes dav modulator, rooj vag Circuit Court, high voltage fais fab hloov raj (MOSFET), bias Circuit Court, overcurrent tiv thaiv Circuit Court, overheat tiv thaiv thiab lub hwj chim-on reset circuit, kaw / pib-restart circuit . Nws siv lub high-frequency transformer kom cais tawm tag nrho cov zis davhlau ya nyob twg los ntawm daim phiaj, uas muaj kev nyab xeeb thiab txhim khu kev qha. Nws yog tam sim no-tswj switching fais fab mov nrog qhib-drain output. Vim yog siv CMOS circuits, lub zog siv ntawm lub cuab yeej txo qis.
(2) Tsuas muaj peb lub davhlau ya nyob twg: tswj lub davhlau ya nyob twg C, qhov chaw S, thiab ntws D, uas tuaj yeem muab piv nrog peb lub davhlau ya nyob twg linear regulators, thiab tuaj yeem tsim lub flyback switching fais fab mov yam tsis muaj lub zog zaus transformer hauv txoj kev yooj yim tshaj plaws. Txhawm rau ua kom tiav ntau yam kev tswj hwm, kev tsis ncaj ncees thiab kev tiv thaiv kev ua haujlwm, C thiab D yog cov khoom siv ntau yam, paub txog ib tus pin nrog ntau lub zog. Siv lub davhlau ya nyob twg tswj raws li piv txwv, nws muaj peb lub luag haujlwm: ①Qhov voltage VC ntawm lub davhlau ya nyob twg no muab kev tsis ncaj ncees rau lub on-chip shunt regulator thiab lub rooj vag tsav tsheb theem; ② IC tam sim no ntawm lub davhlau ya nyob twg tuaj yeem kho lub luag haujlwm lub voj voog; ③ Lub davhlau ya nyob twg no kuj tseem siv los ua lub zog hluav taws xob Cov ntsiab lus txuas nrog lub tshuab hluav taws xob tsis siv neeg rov pib dua / nyiaj npib capacitor, zaus ntawm kev pib rov pib tsis siv neeg yog txiav txim siab los ntawm lwm tus bypass capacitor, thiab lub voj tswj tau them.
(3) Qhov ntau ntawm input AC voltage yog qhov dav heev. 220V ± 15%. Lub input zaus ntau ntawm cov khoom siv hluav taws xob hloov pauv yog 47 ~ 440Hz.
(4) Tus nqi ntawm qhov hloov zaus yog 100KHz, thiab qhov hloov pauv ntawm lub luag haujlwm lub voj voog yog 1.7 feem pua rau 67 feem pua. Lub zog muab hluav taws xob yog kwv yees li 80 feem pua, mus txog 90 feem pua, uas yog ze li ob npaug ntawm cov kab hluav taws xob sib xyaw ua ke tswj fais fab. Nws qhov ntsuas kub ua haujlwm yog 0-70 degree Qhov siab tshaj qhov sib txuas ntawm lub nti yog Tjm =135 degree .
(5) Lub hauv paus ntsiab lus ua haujlwm ntawm TOPSwitch-II yog siv cov lus tawm tswv yim tam sim no IC los kho lub luag haujlwm piv D kom ua tiav lub hom phiaj ntawm kev tswj hluav taws xob. Piv txwv li, thaum qhov tso zis voltage VOT ntawm kev hloov hluav taws xob yog tshwm sim los ntawm qee qhov laj thawj, optocoupler tawm tswv yim Circuit Court yuav ua rau Ic↑ → yuam kev voltage Vrt → D↓ → Vo↓, kom Vo tseem tsis hloov. rov qab.
(6) Lub peripheral Circuit Court yog qhov yooj yim thiab tus nqi qis. Externally tsuas yog yuav tsum tau txuas rectification lim, siab zaus transformer, thawj tiv thaiv Circuit Court, tawm tswv yim Circuit Court thiab tso zis Circuit Court. Kev siv cov chips zoo li no tuaj yeem txo qhov cuam tshuam ntawm electromagnetic cuam tshuam los ntawm kev hloov cov khoom siv hluav taws xob.
