Taw qhia rau tus ua haujlwm ntawm AC / DC hloov fais fab mov
Lub zog hluav taws xob tseem ceeb ntawm AC / DC lub zog muaj cov khoom siv hluav taws xob hauv hluav taws xob (EMI), ib lub zog ntawm cov hluav taws xob lim (EMI) Ntu kev tiv thaiv kev tiv thaiv Circuit Court, tso tawm cov kev tiv thaiv kev tiv thaiv Circuit Court, tawm tsam Circuit Court luv, thiab lwm yam.
Lub hauv paus ntsiab lus ntawm AC tawm retification thiab lim Circuit Court
Xob Laim Circuit Court: Thaum muaj kev tawm tsam hluav taws xob thiab qhia tawm hauv lub hwj chim rau cov mov1, mov2, FDG1 siv rau kev tiv thaiv. Thaum cov hluav taws xob thov hla cov varistor ntau tshaj nws cov kev ua haujlwm hluav taws xob, nws cov kev tiv thaiv hluav taws xob ntau dua, ua rau muaj lub zog hluav taws xob siab yuav tsum tau noj ntawm qhov sib txawv. Yog tias qhov tam sim no dhau lawm, F1, F2, F3 yuav hlawv tawm qhov kev tiv thaiv hluav taws xob ntawm lub nraub qaum.
Tawm tswv yim Lim Circuit Court: Lub dual π - L1, C3, thiab C3, thiab C3 feem ntau yog siv rau cov khoom siv hluav taws xob uas tsim hluav taws xob los ntawm kev cuam tshuam nrog lub zog hluav taws xob. Thaum lub zog tig mus, C5 yuav tsum tau them. Vim tias qhov loj inistaneousous tam sim no, ntxiv RT1 (tus thermistor) tuaj yeem tiv thaiv kom tiv thaiv tawm sai. Vim tias lub zog instantaneously tau noj tag nrho los ntawm RT1 resistor, tom qab lub sijhawm RT1 txo qis (RT1 yog qhov kub thiab txias coefficient caij). Txij ntawm no, lub zog tau siv los ntawm nws yog qhov tsawg heev, thiab tom qab Circuit Coam tuaj yeem ua haujlwm ib txwm muaj.
Recuitification thiab lim Circuit Circuit Court: Qhov voltage yog recified los ntawm C5 kom tau txais ib qho tsis yog DC voltage. Yog tias muaj peev xwm ntawm C5 txo qis, tso zis acpos ripple yuav nce.
Lub hauv paus ntsiab lus ntawm DC cov tswv yim lim Circuit Court
1. Inputing Circuit Court: Lub dual Π - siv cov pob zeb siv hluav taws xob thiab tseem muaj kev cuam tshuam nrog lub zog hluav taws xob thiab muaj kev cuam tshuam nrog lub zog hluav taws xob tsim los ntawm kev sib cuam tshuam nrog lub hwj huam sib kis. C3 thiab C4 yog Capacitors Kev Nyab Xeeb, Thaum L2 thiab L3 yog hom sib txawv hom inductors.
2. R2, R2, R3, Z1, C6, Z1, R4, RT2, RT1, C7 tsim ib qho anti surrge Circuit Court. Thaum lub sijhawm pib pib, vim yog muaj ntawm C6, Q2 tsis ua, thiab cov ntawv tam sim no hauv RT1. Thaum lub voltage ntawm C6 ncav cuag cov nqi tswj hwm muaj nuj nqis ntawm Z1, Q2 kev coj ua. Yog tias muaj kev xau nyob rau hauv C8 lossis luv luv ntawm cov dej ntws hauv RT1 thaum lub sijhawm pib pib, ua rau Q1 coj thiab Q2 kom tsis txhob ua qhov chaw voltage. RT1 yuav hlawv tawm hauv lub sijhawm luv luv los tiv thaiv cov dej hauv qab.
