Kev piav qhia ntxaws txog tsib yam ntxwv ntawm kev tswj fais fab mov
1. Tsawg zog noj thiab ua haujlwm siab. Nyob rau hauv lub hloov tswj fais fab mov Circuit Court, transistor V yog zoo siab los ntawm lub excitation teeb liab thiab ua hauj lwm alternately nyob rau hauv lub on off thiab off on switching xeev. Kev hloov pauv ceev yog ceev, thiab qhov zaus feem ntau nyob ib ncig ntawm 50kHz. Hauv qee lub tebchaws thev naus laus zis, nws tuaj yeem ncav cuag ntau pua lossis ze li 1000kHz. Qhov no txo cov kev siv hluav taws xob ntawm kev hloov pauv hloov V, txhim kho kev ua haujlwm ntawm lub zog hluav taws xob, thiab tuaj yeem ncav cuag 80 feem pua
2. Me me thiab lub teeb yuag. Los ntawm daim duab schematic ntawm kev hloov pauv tswj fais fab mov, nws yog qhov tseeb tias tsis muaj lub zog loj zaus transformer siv ntawm no. Vim tias qhov txo qis hauv lub zog dissipated ntawm lub raj hloov V, cov cua kub loj dua kuj raug tshem tawm. Vim yog ob qho laj thawj no, qhov hloov pauv tswj fais fab mov muaj qhov ntim me me thiab lub teeb yuag.
3. Dav voltage stabilization ntau. Cov zis hluav taws xob ntawm qhov hloov hluav taws xob tswj hluav taws xob tau hloov kho los ntawm lub luag haujlwm lub voj voog ntawm lub teeb liab excitation, thiab cov kev hloov pauv ntawm cov teeb liab input voltage tuaj yeem them nyiaj los ntawm kev hloov pauv ntau zaus lossis qhov dav dav. Txoj kev no, thaum lub zog hluav taws xob hluav taws xob hluav taws xob hloov pauv loj heev, nws tseem tuaj yeem ua kom muaj qhov hluav taws xob ruaj khov. Yog li ntawd, qhov voltage stabilization ntau ntawm lub switching fais fab mov yog dav heev, thiab cov nyhuv voltage stabilization yog zoo heev. Tsis tas li ntawd, muaj ob txoj hauv kev los hloov lub voj voog lub luag haujlwm: pulse width modulation thiab zaus hloov kho. Nyob rau hauv txoj kev no, kev hloov hluav taws xob tswj tsis tau tsuas yog muaj qhov zoo ntawm ntau yam kev tswj hluav taws xob, tab sis kuj muaj ntau txoj hauv kev kom ua tiav qhov kev tswj hwm hluav taws xob. Cov neeg tsim qauv tuaj yeem hloov pauv ntau hom kev hloov pauv tswj cov khoom siv hluav taws xob raws li qhov yuav tsum tau ua ntawm kev siv tswv yim.
4. Qhov ua tau zoo ntawm kev lim dej tau zoo heev, ua rau muaj kev txo qis hauv lub peev xwm thiab ntim ntawm cov lim lim capacitor. Kev ua haujlwm zaus ntawm kev hloov hluav taws xob tswj hluav taws xob yog tam sim no ua haujlwm ntawm 50kHz, uas yog 1000 npaug ntawm cov kab hluav taws xob tswj hluav taws xob, uas txhim kho cov lim dej ua haujlwm tom qab kev kho dua los ntawm yuav luag 1000 zaug. Los ntawm kev siv ib nrab nthwv dej rectification ua raws li capacitor filtering, qhov ua tau zoo kuj tau txhim kho los ntawm 500b zaug. Thaum siv lub tshuab hluav taws xob tswj hluav taws xob nrog tib qhov hluav taws xob tso tawm hluav taws xob, lub peev xwm ntawm lub tshuab lim capacitor tsuas yog 1/500-1/1000 ntawm cov lim capacitor hauv cov kab hluav taws xob tswj hluav taws xob.
5. Cov ntaub ntawv hloov tau yooj yim thiab sib txawv. Piv txwv li, muaj tus kheej excitation thiab nws tus kheej excitation, dav modulation thiab zaus modulation, ib qho kawg thiab ob xaus, thiab hais txog. Cov neeg tsim qauv tuaj yeem ua kom muaj zog ntawm ntau hom circuits los tsim kev hloov cov khoom siv hluav taws xob uas tuaj yeem ua tau raws li qhov sib txawv ntawm daim ntawv thov.
