Cov ntsiab lus thiab cov yam ntxwv ntawm kev siv hluav taws xob ntau zaus hloov hluav taws xob
Main Circuit Court
Tag nrho cov txheej txheem los ntawm AC lub zog daim phiaj tawm tswv yim rau DC cov zis, suav nrog: 1. Input filter: Nws txoj haujlwm yog lim tawm cov clutter uas twb muaj lawm nyob rau hauv daim phiaj fais fab, thaum tseem cuam tshuam cov lus tawm tswv yim ntawm cov clutter generated los ntawm lub tshuab mus rau pej xeem lub hwj chim daim phiaj. . 2. Rectification thiab filtering: ncaj qha rectify AC zog daim phiaj rau smoother DC fais fab mov rau theem tom ntej ntawm kev hloov dua siab tshiab. 3. Inverter: Hloov kho DC fais fab mus rau hauv high-frequency AC zog, uas yog ib feem ntawm lub siab zaus. Qhov ntau zaus, qhov sib piv me me ntawm ntim, qhov hnyav, thiab cov zis hluav taws xob. 4. Tso zis rectification thiab filtering: Muab ruaj khov thiab txhim khu kev qha DC fais fab mov raws li qhov yuav tsum tau ua.
tswj Circuit Court
Ntawm qhov tod tes, cov qauv raug coj los ntawm qhov kawg tso zis, piv nrog cov qauv txheej txheem, thiab tom qab ntawd lub inverter yog tswj los hloov nws cov zaus lossis mem tes dav kom ua tiav cov zis ruaj khov. Ntawm qhov tod tes, raws li cov ntaub ntawv muab los ntawm kev ntsuas Circuit Court, ntau yam kev tiv thaiv kev ntsuas yog muab los ntawm kev tswj Circuit Court rau tag nrho lub tshuab tom qab kev txheeb xyuas los ntawm kev tiv thaiv Circuit Court.
Kev kuaj xyuas Circuit Court
Ntxiv nrog rau kev muab ntau yam tsis sib xws uas tam sim no khiav hauv kev tiv thaiv Circuit Court, nws kuj muab ntau yam ntaub ntawv ntsuas ntsuas.
Pab txhawb zog
Muab cov kev xav tau sib txawv ntawm cov khoom siv hluav taws xob sib txawv rau txhua lub voj voog ib leeg. Lub hauv paus ntsiab lus ntawm kev hloov hluav taws xob tswj hluav taws xob yog qhov hloov K yog rov qhib thiab tawm ntawm qee lub sijhawm. Thaum hloov K yog qhib, input fais fab E yog muab los thauj RL los ntawm kev hloov K thiab lim Circuit Court. Thaum lub sijhawm hloov pauv tag nrho, lub zog E muab lub zog rau lub nra; Thaum hloov K raug rho tawm, cov khoom siv hluav taws xob nkag E cuam tshuam cov khoom siv hluav taws xob. Nws tuaj yeem pom tias cov khoom siv hluav taws xob input muab lub zog rau cov khoom thauj tsis tu ncua. Txhawm rau kom cov khoom thauj tau txais cov khoom siv hluav taws xob tas mus li, qhov hloov hluav taws xob ruaj khov hluav taws xob yuav tsum muaj cov khoom siv hluav taws xob uas khaws ib feem ntawm lub zog thaum lub hloov pauv tau qhib thiab tso tawm mus rau qhov chaw thau khoom thaum lub hloov pauv. Nyob rau hauv daim duab, lub Circuit Court tsim ntawm inductor L, capacitor C2, thiab diode D muaj cov haujlwm no. Inductance L yog siv los khaws lub zog. Thaum lub tshuab hluav taws xob raug kaw, lub zog khaws cia hauv inductance L raug tso tawm mus rau lub load los ntawm diode D, tso cai rau lub load kom tau txais lub zog tas mus li thiab ruaj khov. Vim tias diode D ua kom cov load tam sim no tsis tu ncua, nws yog hu ua freewheeling diode. Qhov nruab nrab qhov hluav taws xob EAB ntawm AB tuaj yeem qhia tau raws li hauv qab no: EAB=TON / T * E, qhov twg TON yog lub sijhawm hloov pauv txhua lub sijhawm, thiab T yog lub luag haujlwm ntawm qhov hloov pauv (xws li cov lej ntawm qhov hloov ntawm lub sijhawm TON thiab lub sijhawm tawm TOFF). Raws li tuaj yeem pom los ntawm qhov sib npaug, hloov qhov sib piv ntawm kev hloov ntawm lub sijhawm mus rau lub voj voog ua haujlwm kuj hloov qhov nruab nrab ntawm qhov hluav taws xob ntawm AB, yog li ntawd, cia li hloov qhov piv ntawm TON thiab T nrog kev hloov pauv hauv kev thauj khoom thiab cov khoom siv hluav taws xob muaj peev xwm tswj tau cov zis. voltage V0 tsis hloov. Hloov lub sij hawm TON thiab lub luag hauj lwm lub voj voog piv, uas yog, hloov lub voj voog ua haujlwm mem tes, yog ib txoj hauv kev hu ua "Time Ratio Control" (TRC).
