Taw qhia rau Electromagnetic Compatibility Tsim Txheej Txheem Ntawm Cov Khoom Siv Loj Hloov Hloov Lub Zog
Yog tias muaj kev cuam tshuam hluav taws xob hluav taws xob (EMI) qhov teeb meem hluav taws xob zoo li cas, tab sis kuj tau yooj yim rau hauv cov khoom siv hluav taws xob (EMC) qhov teeb meem hluav taws xob muaj peev xwm hloov kho lub zog hluav taws xob. Kab lus no tsom rau kev tshuaj ntsuam ntawm hluav taws xob hluav taws xob hluav taws xob hloov kho lub zog hluav taws xob hloov kho, thiab cov kev ntsuas txhim kho.
Cov khoom siv hluav taws xob hluav taws xob tsim los ntawm kev hloov kho siab hloov cov khoom siv fais fab tuaj yeem faib ua ob pawg: kev cuam tshuam thiab cuam tshuam hluav taws xob. Kev cuam tshuam los ua kev ntxhov siab txog AC lub zog los nrog cov zaus hauv qab 30mHz; Kev cuam tshuam hluav taws xob tawm ntawm qhov chaw, nrog ntau zaus nyob ntawm 30 txog 1000 MHz.
Kev Ntsuam Xyuas Ntawm Cov Khoom Siv Hluav Taws Xob Hauv Electromagnetic Cov Txom Nyem Hauv Cov Khoom Loj Hloov Hloov Hluav Taws Xob
Lub Rectifier thiab fais fab hloov pauv ntawm Circuitor, thiab cov peev txheej ntawm hluav taws xob D1 rau hauv lub sijhawm hluav taws xob Qhov kev tsom xam tshwj xeeb yog raws li hauv qab no.
Qhov kev txiav txim siab zoo tsim tawm tsim lub sijhawm thaum lub sijhawm kho cov txheej txheem ntawm cov txheej txheem Rectifier yuav tsim kev cuam tshuam nrog cov kab kev ntxhov siab raws lub zog hluav taws xob.
Hloov lub zog tiv thaiv kev ua haujlwm hauv kev ua haujlwm siab thiab txiav cov xeev. Txhawm rau kom txo tau cov khoom ploj, txhim kho hluav taws xob ceev thiab tag nrho kev txuag nyiaj, qhib thiab kaw nrawm ntawm hloov cov trantersors tau nrawm dua thiab sai dua. Feem ntau, tsis pub dhau ob peb micreesconds, hloov chaw transistors qhib thiab kaw qhov kev sib raug zoo no, ua rau hluav taws xob muaj kev cuam tshuam nrog qhov chaw thiab AC cov kab ntxiv.
Nyob rau tib lub sij hawm raws li qhov siab hloov pauv T1 ua rau muaj kev hloov pauv fais fab uas hluav taws xob hluav taws xob uas hluav taws xob hluav taws xob hluav taws xob. Muab faib ua ke thiab muaj peev xwm ntawm lub transformer oscillate thiab ob peb lub ac tswv hluav taws xob ntawm cov theem ntawm cov kev hloov pauv, kev ua kev ntxhov siab.
Thaum cov zis hluav taws xob yog qhov tsawg, cov zis ua kom muaj zog ntawm lub xeev siab hloov chaw thiab yog kuj yog qhov cuam tshuam ntawm hluav taws xob cuam tshuam.
Vim yog cov parasitic inductance thiab junction capacitance ntawm Diod ua, nrog rau cov cawv muaj kev rov qab tam sim no, nws ua haujlwm ntawm cov hluav taws xob ntau thiab cov kev hloov pauv tam sim no. Lub sijhawm rov qab dua ntawm Diode, qhov ntau dua qhov cuam tshuam ntawm kev cuam tshuam ntawm oscillation, uas yog hom kev cuam tshuam nrog hom kev sib txawv.
