Ka ọ dị ugbu a, e nwere ọtụtụ ụdị nke DC / DC converters na ahịa, resonant Ntụgharị bụ ụdị nke DC / DC converter topology, site ịchịkwa ngbanwe ugboro iji nweta a mgbe nile mmepụta voltaji resonance circuit.A na-ejikarị ndị ntụgharị resonant eme ihe na ngwa voltaji dị elu iji mee ka ebili mmiri dị nro, kwalite ihe ike, ma belata mfu ngbanwe nke ọkụ ọkụ ugboro dị elu dị ka MOSFET na IGBT kpatara.Ọ dị mkpa iburu n'obi na a na-ejikarị sekit LLC eme ihe na ndị ntụgharị resonant n'ihi na ọ na-eme ka ntụgharị voltaji efu (ZVS) na ntụgharị efu ugbu a (ZCS) na mpaghara arụ ọrụ, na-akwado mgbanwe mgbanwe dị elu, na-ebelata akara ukwu nke components, ma na-ebelata electromagnetic. nnyonye anya (EMI).
Eserese atụmatụ nke ihe ntụgharị resonant
A na-ewu ihe ngbanwe resonant na resonant inverter nke na-eji netwọk nke switches iji gbanwee voltaji ntinye DC n'ime ikuku square, nke a na-etinye na sekit resonant.Dị ka egosiri na eserese 2, sekit resonant nwere resonant capacitor Cr, inductor resonant Lr na magnetizing inductor Lm nke transformer n'usoro.Sekit LLC na-ehichapụ harmonics usoro ọ bụla dị elu site na ịhọpụta ike kachasị elu n'otu oge resonant square ebili mmiri na-ahapụ voltaji sinusoidal site na resonance magnet.A na-ebuli ma ọ bụ belata AC ebili mmiri a site na transformer, mezie ya, wee kpochaa ya iji mepụta voltaji mmepụta DC agbanwere.
Simplified LLC resonant DC/DC ntụgharị
Mgbọrọgwụ mean square (RMS) ugbu a nke capacitor bụ otu n'ime ihe dị mkpa a ga-atụle mgbe ị na-ahọrọ capacitor resonant kwesịrị ekwesị Cr maka onye ntụgharị DC/DC.Ọ na-emetụta ntụkwasị obi capacitor, voltaji ripple, na arụmọrụ zuru oke nke onye ntụgharị (dabere na topology nke sekit resonant).Mgbasa ọkụ na-emetụtakwa RMS ugbu a na mfu ndị ọzọ dị n'ime.
Polypropylene film dielectric
PCB dị ike
ESR dị ala, obere ESL
Ugboro ugboro
Oge nzipu: Sep-15-2023