Kugeza ubu, hari ubwoko bwinshi bwihindura DC / DC kumasoko, resonant ihinduranya ni ubwoko bwa DC / DC ihindura topologiya, mugucunga imirongo yo guhinduranya kugirango igere kumurongo uhoraho wa voltage resonance.Impinduka za resonant zisanzwe zikoreshwa mumashanyarazi menshi kugirango yorohereze imivurungano, atezimbere imbaraga, kandi agabanye igihombo cyo guhinduranya cyatewe numuyoboro mwinshi wumuriro nka MOSFETs na IGBTs.Ni ngombwa kumenya ko umuzunguruko wa LLC usanzwe ukoreshwa mu guhinduranya resonant kuko ituma zeru zeru zeru (ZVS) na zeru zeru (ZCS) murwego rwo gukora, igashyigikira imirongo myinshi yo guhinduranya, igabanya ikirenge cyibigize, kandi ikagabanya amashanyarazi. kwivanga (EMI).
Igishushanyo mbonera cya resonant ihindura
Ihinduranya rya resonant ryubatswe kuri reveron inverter ikoresha umuyoboro woguhindura kugirango uhindure ingufu za DC winjiza mumurongo wa kare, hanyuma ugashyirwa kumurongo wa resonant.Nkuko bigaragara ku gishushanyo cya 2, umuzunguruko wa resonant ugizwe na capacitor ya resonant Cr, resonator inductor Lr hamwe na inductor ya magnetizing Lm ya transformateur murukurikirane.Umuzunguruko wa LLC uyungurura ibyaribyo byose murwego rwohejuru muguhitamo gukuramo imbaraga ntarengwa kumurongo uhamye wa resonant yumurongo no kurekura voltage ya sinusoidal ikoresheje magnetiki resonance.Iyi flake ya AC yongerewe cyangwa igabanywa na transformateur, ikosorwa, hanyuma ikayungurura kugirango itange ingufu za DC zahinduwe.
Byoroheje LLC resonant DC / DC ihindura
Imizi isobanura kwaduka (RMS) ikigezweho ya capacitori nimwe mubintu byingenzi bigomba kwitabwaho muguhitamo capacator ikwiye ya Cr / DC ihindura.Ihindura ubushobozi bwa capacitor kwizerwa, voltage ripple, hamwe nibikorwa rusange byahinduye (bitewe na topologiya yumuzingi wa resonant).Gukwirakwiza ubushyuhe nabyo bigira ingaruka kuri RMS igezweho nibindi bihombo byimbere.
Filime ya polypropilene dielectric
PCB ishobora kuboneka
ESR yo hasi, ESL yo hasi
Umuvuduko mwinshi
Igihe cyo kohereza: Nzeri-15-2023