Waqtigan xaadirka ah, waxaa jira noocyo badan oo ka mid ah beddelayaasha DC / DC ee suuqa, beddelaha resonant waa nooc ka mid ah beddelaha DC / DC topology, iyadoo la xakameynayo inta jeer ee beddelka si loo gaaro wareegga resonance korontadu joogto ah.Beddelayaasha resonant waxaa caadi ahaan loo isticmaalaa codsiyada danab sare si loo fududeeyo mowjadaha mowjadaha, loo hagaajiyo qodobka awoodda, iyo in la yareeyo khasaaraha beddelka ee ay sababaan furayaasha tamarta soo noqnoqda sida MOSFETs iyo IGBTs.Waxaa muhiim ah in la ogaado in wareegga LLC-ka inta badan loo isticmaalo beddelayaasha resonant sababtoo ah waxay awood u siinaysaa beddelka tamarta eber (ZVS) iyo eber beddelka hadda (ZCS) ee kala duwanaanta hawlgalka, waxay taageertaa isbeddellada beddelka sare, waxay yaraynaysaa raadadka qaybaha, waxayna yaraynaysaa korantada korantada. faragelinta (EMI).
Jaantuska jaantuska beddelaha resonant
Beddeliyaha resonant wuxuu ku dul dhisan yahay rookaha resonant kaas oo adeegsada shabakad furayaasha si uu korontada galinta DC u rogo mowjad labajibbaaran, ka dibna lagu dabaqo wareegga resonant.Sida ku cad sawirka 2, wareegga resonant wuxuu ka kooban yahay capacitor resonant Cr, inductor resonant Lr iyo magnetizing inductor Lm ee transformer-ka oo taxane ah.Wareegga LLC waxa uu shaandheeyaa hab kasta oo harmonics-sare ah iyada oo si xushmad leh u nuugaya awoodda ugu badan ee mawjadda labajibbaaran ee go'an ee soo noqnoqoshada iyo sii daynta danab sinusoidal iyada oo loo marayo resonance magnetic.Qaabka hirarka AC waxa lagu xoojiyay ama la dhimay is beddelka, la hagaajiyay, ka dibna la sifeeyay si loo dhaliyo korantada wax soo saarka DC ee la beddelay.
La fududeeyay LLC resonant DC/DC beddelka
Xididka celceliska labajibbaaran (RMS) ee hadda ee capacitor waa mid ka mid ah halbeegyada muhiimka ah ee la tixgeliyo marka la dooranayo capacitor resonant ku habboon Cr beddelaha DC/DC.Waxay saamaysaa isku halaynta capacitor, qulqulka danab, iyo waxqabadka guud ee beddelaha (waxay kuxirantahay topology ee wareegga resonant).Diidmada kulaylka waxaa sidoo kale saameeya RMS hadda iyo khasaaraha kale ee gudaha.
Dielectric polypropylene filim
PCB lagu rakibi karo
ESR hoose, ESL hoose
Soo noqnoqoshada sare
Waqtiga boostada: Seb-15-2023