Qhov cuam tshuam ntawm qhov kub ntawm kev ua yeeb yam thiab lub neej ntawm kev sib txuas lus hloov hom Fais Fab Khoom
Lub ntsiab tivthaiv hloov kev sib txuas lus fais fab yog qhov hloov zuj zus nrog kev txhim kho lub zog hluav taws xob kev xav thiab thev naus laus zis thiab hluav taws xob hluav taws xob. Lub rectifier siv cov tshuab hloov khoom siv muag muag tau txo qis kev noj, qhov ntsuas kub tsawg dua, thiab qhov hnyav tsis tu ncua, thiab kev ntseeg tau ntau dua. Tab sis thaum twg muaj qhov kub ambient los ntawm 10 degree, lub neej ntawm lub zog tseem ceeb txo los ntawm 50%. Qhov laj thawj rau kev poob sai hauv kev siv nyiaj yog vim qhov ntsuas kub. Qoj ua tsis tiav tshwm sim los ntawm ntau cov micro thiab macro tshuab kev ntxhov siab, cov khoom siv sab hauv cov khoom siv hluav taws xob hauv tsheb sib txuas lus tsis tu ncua thaum ua haujlwm. Yog li ntawd, kom ntseeg tau kub tshav kub dissipation ntawm cov khoom siv yog qhov tsim nyog muaj kev ntseeg tau rau kev ntseeg tau thiab kev ntseeg tau.
Kev sib raug zoo ntawm kev ua haujlwm kub thiab kev ntseeg tau thiab lub neej ntawm cov hluav taws xob hluav taws xob sib xyaw
Lub zog hluav taws xob yog hluav taws xob hloov pauv hluav taws xob uas siv qee lub zog hluav taws xob thaum lub zog hloov dua siab tshiab, uas yog ces hloov mus ua cua sov thiab tso tawm. Qhov ruaj khov thiab kev laus tus nqi ntawm cov hluav taws xob sib txuas yog qhov sib haum xeeb rau qhov kub thiab txias. Cov khoom siv hluav taws xob hluav taws xob hluav taws xob yog tsim ntawm ntau cov ntaub ntawv semiconductor. Vim tias qhov kev poob ntawm cov khoom siv fais fab thaum lub sijhawm ua haujlwm tsis txaus ntseeg, cov cua sov ua rau muaj kev ntxhov siab ntau dua thiab tseem ua rau muaj kev ntxhov siab sib txawv, uas ua rau muaj kev tsis ua haujlwm. Yog tias muaj fais fab kev ua haujlwm muaj kev ua haujlwm nyob rau hauv kev tsis txaus siab txog thaum lub sijhawm ntev, nws yuav ua rau qaug zog uas yuav ua rau txhawm rau txhawm rau ua kom tawg. Vim yog lub zog qaug zog lub neej ntawm cov semiconductors, nws yog qhov yuav tsum tau uas lawv yuav tsum ua haujlwm hauv ib qho ruaj khov thiab tsawg kub ntau.
Nyob rau tib lub sijhawm, hloov pauv sai sai uas tuaj yeem tsim qhov kub thiab txias ua qhov sib txawv hauv lub semiconductor, ua rau thermal ntxhov siab thiab thermal poob siab. Tshaj tawm cov khoom siv rau cov cua tshuab kev ntxhov siab, thiab thaum qhov kub tau sib txawv dhau lawm, cov kab nrib pleb yuav tshwm sim hauv cov khoom sib txawv ntawm cov khoom siv. Ua rau yug ua tsis tiav ntawm cov khoom. Qhov no tseem yuav tsum muaj cov khoom siv hluav taws xob ua haujlwm hauv lub qhov cuam tshuam tau yooj yim, txo cov kev hloov pauv sai sai, ua kom cov haujlwm ntev ua haujlwm ntawm cov tib yam.
Tus cawv ntawm kev ua haujlwm ntawm kev kub siab ntawm cov rwb thaiv tsev muaj peev xwm ntawm kev hloov pauv
Tom qab thawj lub winding ntawm lub transformer yog energized, lub sib nqus flux tsim los ntawm cov coil ntws los ntawm cov tub ntxhais hlau. As the iron core itself is a conductor, an induced potential is generated in a plane perpendicular to the magnetic field lines, forming a closed loop on the cross-section of the iron core and generating current, which is called "eddy current". Qhov no 'EDDY tam sim no' nce qhov poob ntawm cov hloov pauv thiab ua rau cov hlau tseem ceeb ntawm tus transformer kom sov, ua rau muaj qhov nce ntawm qhov chaw kub. Qhov poob tshwm sim los ntawm eddy dej yog hu ua "hlau poob". Ib qho ntxiv, cov xov tooj liab siv rau cov cua winding muaj, uas siv qee qhov ntawm lub zog thaum tam sim no ntws los ntawm lawv. Qhov kev poob no ua cua sov thiab yog hu ua "tooj liab poob". Yog li hlau thiab tooj liab poob yog lub ntsiab ua rau muaj kev kub siab ntau hauv kev ua haujlwm hloov tshiab.
