Ni gute wakoresha DC/DC Converter?

Kuri ubu, hari ubwoko bwinshi bwa DC/DC converters ku isoko, resonant converter ni ubwoko bwa DC/DC converter topology, binyuze mu kugenzura frequency yo guhindura kugira ngo habeho circuit ya voltage resonance ihoraho. Resonant converters zikunze gukoreshwa mu bikorwa bya voltage nyinshi kugira ngo zoroshye waveforms, zinoze power factor, kandi zigabanye igihombo giterwa na switch high power frequency nka MOSFET na IGBTs. Ni ngombwa kumenya ko LLC circuit ikoreshwa mu bihindura resonant kuko ituma zero voltage switching (ZVS) na zero current switching (ZCS) mu rwego rw'imikorere, zishyigikira frequency yo guhindura, zigabanya footprint y'ibice, kandi zigagabanya interference ya electromagnetic (EMI).

Imbonerahamwe y'icyitegererezo cy'ihinduranya ry'amajwi

Ihinduranya ry’amajwi ryubatswe ku cyuma gihinduranya amajwi gikoresha urusobe rw’amajwi kugira ngo gihindure voltage y’injira rya DC mo umuraba kare, hanyuma kigashyirwa ku muraba uriho. Nkuko bigaragara ku Ishusho ya 2, umuraba uriho ugizwe na capacitor ya resonant Cr, inductor ya resonant Lr na inductor Lm ya magnetizing ya transformer mu buryo bukurikiranye. Urubuga rwa LLC rushungura harmonics zo mu rwego rwo hejuru binyuze mu gufata imbaraga ntarengwa ku muraba uriho kandi rukarekura voltage ya sinusoidal binyuze muri resonance ya magnetic. Iyi waveform ya AC yongerwa cyangwa ikagabanywa na transformer, igakosorwa, hanyuma ikayungururwa kugira ngo ikore voltage ya DC yahinduwe.

Ihinduranya ry'imashini ya LLC Resonant DC/DC

Konsoliteri ya DC/DC yoroshye ya LLC ihindura imiterere y'umubiri

Umuriro w’impinduka z’umuzi (RMS) wa capacitor ni kimwe mu bintu by’ingenzi bigomba kwitabwaho mu gihe cyo guhitamo capacitor ikwiye ya resonant Cr kuri converter ya DC/DC. Igira ingaruka ku bwizerwe bwa capacitor, ku kuzura k’amashanyarazi, no ku mikorere rusange ya converter (bitewe n’imiterere y’urusobe rw’amashanyarazi). Gusesagura ubushyuhe nabyo bigira ingaruka ku muriro wa RMS n’ibindi bihombo by’imbere.