Yuav ua li cas kom tsis txhob cuam tshuam nrog switching tswj fais fab mov
Cov khoom siv hluav taws xob ruaj khov yog cov khoom siv hluav taws xob uas tuaj yeem muab cov khoom ruaj khov AC lossis DC lub zog rau lub nra, suav nrog ob pawg: AC stabilized fais fab mov thiab DC stabilized fais fab mov. Thaum muaj qhov hloov pauv tam sim no hauv qhov hluav taws xob lossis kev thauj khoom ntawm daim phiaj hluav taws xob, cov khoom siv hluav taws xob tswj hwm yuav them rau qhov voltage amplitude nrog cov lus teb ceev ntawm 10-30ms, stabilizing nyob rau hauv ± 2%.
Switching stabilized fais fab mov yog ib yam tshiab ntawm lub hwj chim mov. Nws muaj qhov zoo ntawm kev ua haujlwm siab, lub teeb yuag, adjustable voltage, thiab siab tso zis zog. Txawm li cas los xij, vim qhov kev ua haujlwm hauv Circuit Court nyob rau hauv lub xeev hloov, lub suab nrov kuj yog siab heev. Los ntawm daim duab hauv qab no, cia peb piav qhia luv luv txog lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm ib kauj ruam-down switching fais fab mov. Raws li pom nyob rau hauv daim duab, lub Circuit Court muaj hloov K (nyob rau hauv qhov tseeb circuits, nws yog ib tug transistor los yog teb-zoo transistor), freewheeling diode D, lub zog cia inductor L, filtering capacitor C, thiab lwm yam. fais fab mov muab lub zog rau lub load los ntawm kev hloov K thiab inductor L, thiab khaws qee lub zog hluav taws xob hauv inductor L thiab capacitor C.
Thaum lub sijhawm ua haujlwm ntawm lub tshuab hluav taws xob hloov hluav taws xob, qhov hloov pauv ntawm transistor thiab freewheeling diode (los yog lwm lub transistor hloov) ib txwm hloov ntawm kev coj ua thiab kev txiav tawm. KQ thiab KD tsis yog cov cuab yeej zoo tshaj plaws, thiab kev hloov pauv ntawm ob lub xeev yuav tsum muaj qee lub sijhawm, ua rau muaj kev cuam tshuam loj heev. Thaum lub sijhawm hloov pauv hauv lub xeev, yog tias qhov hloov pauv uas yuav tsum tau ua tsis yog qhov ua tau zoo tag nrho, thiab qhov hloov pauv uas yuav tsum tau muab tua tsis raug muab tua tam sim no, muaj txoj hauv kev ncaj qha los ntawm lub zog hluav taws xob mus rau hauv av, tsim ib qho kev hloov pauv tam sim no Is. Qhov tam sim no muaj feem xyuam rau yam xws li qhov sib txawv ntawm tam sim no Imax thaum lub transistor hloov pauv thiab tam sim no Icmin thaum nws raug tua, nrog rau lub sijhawm ntawm kev sib txuas ntawm cov keyboards KQ thiab KD. Vim muaj kev cuam tshuam ntawm kev faib hluav taws xob hauv Circuit Court, ringing oscillations tshwm sim ntawm lub waveform.
Cov hloov hluav taws xob ruaj khov radiates cuam tshuam rau qhov chaw thaum ua haujlwm. Qib ntawm cov suab nrov radiated yog inversely proportional rau qhov kev ncua deb ntawm cov hluav taws xob qhov chaw. Feem ntau, xaim yuav tsum tau ua ntawm qhov deb ntawm 5cm lossis ntau dua. Yog tias nws tsis raug tso cai hauv kev tsim kho, kev thaiv yuav tsum tau ntxiv. Lub zog hluav taws xob muaj zog yog tsim nyob ib puag ncig ntawm cov khoom siv hluav taws xob, thiab txhawm rau txo cov electromagnetic coupling ntawm cov tswv yim thiab cov kab tawm, lawv yuav tsum tau ceev kom deb ntawm ib leeg.
