Fa'apefea ona fa'aoga le DC/DC Converter?

I le taimi nei, e tele ituaiga o DC/DC converters o loʻo i luga o le maketi, o le resonant converter o se ituaiga o DC/DC converter topology, e ala i le puleaina o le switching frequency e ausia ai se output voltage resonance circuit e tumau. O resonant converters e masani ona faʻaaogaina i faʻaoga maualuga voltage e faʻalelei ai waveforms, faʻaleleia le power factor, ma faʻaitiitia ai le switching losses e mafua mai i high frequency power switches e pei o MOSFETs ma IGBTs. E taua le maitauina o le LLC circuit e masani ona faʻaaogaina i resonant converters aua e mafai ai ona zero voltage switching (ZVS) ma zero current switching (ZCS) i le operating range, lagolagoina high switching frequencies, faʻaitiitia le footprint o vaega, ma faʻaitiitia ai le electromagnetic interference (EMI).

Ata fa'ata'ita'i o le resonant converter

O se resonant converter ua fausia i luga o se resonant inverter e faʻaaogaina se fesoʻotaʻiga o ki e liua ai se voltage input DC i se sikuea wave, lea e faʻaaogaina i se resonant circuit. E pei ona faʻaalia i le Ata 2, o le resonant circuit e aofia ai se resonant capacitor Cr, se resonant inductor Lr ma se magnetizing inductor Lm o le transformer i le faasologa. O le LLC circuit e faamama ese soʻo se harmonics maualuga e ala i le mitiia filifilia o le malosiaga maualuga i se square wave resonant frequency tumau ma faʻasaʻoloto le sinusoidal voltage e ala i le magnetic resonance. O lenei AC waveform e faʻateleina pe faʻaitiitia e se transformer, faʻasaʻo, ona faʻamama lea e faʻatupu ai le DC output voltage ua liua.

Fa'aliliuga DC/DC resonant a le LLC ua fa'afaigofieina

O le root mean square (RMS) current o le capacitor o se tasi lea o mea taua e mafaufau i ai pe a filifilia se resonant capacitor Cr talafeagai mo se DC/DC converter. E aʻafia ai le faʻatuatuaina o le capacitor, voltage ripple, ma le faʻatinoga atoa o le converter (e fuafua i le topology o le resonant circuit). O le faʻasalalauina o le vevela e aʻafia foʻi e le RMS current ma isi mea e leiloa i totonu.