Nigute ushobora gukoresha Resonant DC / DC Guhindura?

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 biterwa no guhinduranya amashanyarazi menshi nka MOSFETs na IGBTs.Ni ngombwa kumenya ko umuzunguruko wa LLC usanzwe ukoreshwa mu guhinduranya resonant kuko ituma zeru zeru zeru (ZVS) hamwe 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

Ihindurangingo ya resonant yubatswe kuri reveron inverter ikoresha umuyoboro woguhindura kugirango uhindure ingufu za DC mumashanyarazi ya kare, hanyuma bigashyirwa kumurongo wa resonant.Nkuko bigaragara ku gishushanyo cya 2, umuziki wa resonant ugizwe na capacitor ya resonant Cr, inductor inductor Lr hamwe na inductor ya magnetizing Lm ya transformateur murukurikirane.Umuzunguruko wa LLC ushungura ibintu byose biri murwego rwohejuru muguhitamo gukuramo imbaraga ntarengwa kumurongo uhoraho wa resonant yumurongo uhoraho 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 cya capacitori nimwe mubintu byingenzi bigomba kwitabwaho muguhitamo capacator ikwiye Cr ya DC / 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.