amakuru

Dukoresha kuki kugirango tuzamure uburambe.Mu gukomeza gushakisha kururu rubuga, wemera gukoresha kuki. Andi makuru.
Inductors mumashanyarazi ya DC-DC ihinduranya bigomba gutoranywa neza kugirango ugere ku guhuza neza ibiciro, ubuziranenge, n’imikorere y’amashanyarazi.Muri iyi ngingo, Umushinga wo gusaba umurima Smail Haddadi atanga ubuyobozi bwuburyo bwo kubara ibisobanuro bisabwa nubucuruzi- birashobora gukorwa.
Hariho porogaramu zigera kuri 80 zitandukanye za elegitoronike zikoresha ibikoresho bya elegitoroniki, kandi buri porogaramu isaba gari ya moshi ihamye ihamye, ikomoka kuri voltage ya bateri.Ibi birashobora kugerwaho nubuyobozi bunini, butakaza "umurongo", ariko uburyo bwiza ni ugukoresha “buck” cyangwa “buck-boost” igenzura, kuko ibi bishobora kugera kubikorwa no gukora neza birenze 90%.Ubwitonzi.Ubu bwoko bwo guhinduranya kugenzura bisaba inductor.Guhitamo ibice bikwiye birashobora rimwe na rimwe kuba amayobera, kubera ko kubara bisabwa byatangiriye mu nyigisho ya magnetiki yo mu kinyejana cya 19. Abashushanya bashaka kubona ikigereranyo aho bashobora "gucomeka" ibipimo byabo hanyuma bakabona inductance "ikwiye" hamwe nu rutonde rugezweho bityo ko bashobora guhitamo gusa mubice kataloge.Nyamara, ibintu ntabwo byoroshye: ibitekerezo bimwe bigomba gukorwa, ibyiza nibibi bigomba gupimwa, kandi mubisanzwe bisaba gusubiramo ibishushanyo byinshi. Nubwo bimeze bityo, ibice byuzuye ntibishobora kuboneka nkibipimo kandi dukeneye guhindurwa kugirango turebe uko inductors zitari nziza.
Reka dusuzume umugenzuzi w'amafaranga (Igicapo 1), aho Vin ari voltage ya batiri, Vout ni gari ya moshi yo hasi ya voltage yamashanyarazi, na SW1 na SW2 barazimya kandi bazimya ubundi buryo. Igereranya ryimikorere yoroshye ni Vout = Vin.Ton / . SW1 ifunguye kugirango yemere gukomeza umusaruro mugihe izimye.Birashoboka kubara ingufu zabitswe no kuzihuza ningufu zisabwa, ariko mubyukuri haribindi bintu bigomba kubanza gutekerezwa. Guhinduranya kwa SW1 na SW2 itera umuyaga muri inductor kuzamuka no kugwa, bityo bigakora "mpandeshatu mpandeshatu" ku gipimo mpuzandengo ya DC. capacitor ESR izabyara umusaruro wa voltage ripple.Niba ibi aribintu bikomeye, hamwe na capacitor na ESR yayo bigenwa nubunini cyangwa ikiguzi, ibi birashobora gushiraho agaciro ka ripple hamwe ninduction.
Mubisanzwe guhitamo capacator bitanga guhinduka.Ibyo bivuze ko niba ESR iri hasi, imiyoboro ihindagurika irashobora kuba ndende.Nyamara, ibi bitera ibibazo byayo.Urugero, niba "ikibaya" cya ripple ari zeru munsi yumutwaro runaka, na SW2 ni diode, mubihe bisanzwe, bizahagarika kuyobora mugice cyizunguruka, kandi uhindura azinjira muburyo bwa "disontinuous conduction". Muri ubu buryo, imikorere yo kwimura izahinduka kandi bigoye cyane kugera kubintu byiza leta ihagaze neza. Guhindura buck ya modern isanzwe ikoresha ikosora ikomatanya, aho SW2 ari MOSEFT kandi irashobora kuyobora imiyoboro y'amazi mubyerekezo byombi iyo ifunguye.Ibyo bivuze ko inductor ishobora guhindagurika nabi kandi igakomeza imiyoboro ikomeza (Ishusho 2).
Muri iki kibazo, impinga-to-peak ripple current ΔNashobora kwemererwa kuba hejuru, igashyirwaho nagaciro ka inductance ukurikije ΔI = ET / LE ni voltage inductor ikoreshwa mugihe T. Iyo E ari voltage isohoka . V. kubarwa muri iyi mibare.
Gushakisha muri make kuri kataloge birashobora kwerekana ibice byinshi ibipimo biriho bihuye numutwaro usabwa.Nyamara, ni ngombwa kwibuka ko ripple ihindagurika hejuru yagaciro ka DC, bivuze ko murugero ruvuzwe haruguru, inductor ihari izagera hejuru kuri 0.5 A hejuru yumuzigo uremereye.Hariho uburyo butandukanye bwo gusuzuma imiyoboro ya inductor: nkumubare wuzuye wuzuye wumuriro cyangwa igipimo cyuzuye cya magnetiki. Inductors zifite ubushobozi buke zipimwa kugirango ubushyuhe bwiyongere, ubusanzwe 40 oC, kandi birashobora kuba ikorera kumuyaga mwinshi niba ishobora gukonjeshwa. Kwiyuzuzamo bigomba kwirindwa kumuyaga wimpinga, kandi imipaka izagabanuka hamwe nubushyuhe.Ni ngombwa kugenzura witonze urupapuro rwerekana inductance kugirango tumenye niba bigarukira kubushyuhe cyangwa kwiyuzuzamo.
Igihombo cya Inductance nacyo ni ikintu cyingenzi kwitabwaho.Igihombo ahanini ni igihombo cya ohmic, gishobora kubarwa mugihe imiyoboro ihindagurika iba mike.Mu rwego rwo hejuru rwo hejuru, igihombo cyibanze gitangira kwiganza, kandi ibyo bihombo biterwa nuburyo imiterere yumuraba kimwe inshuro n'ubushyuhe, kubwibyo rero biragoye guhanura. Ibizamini nyabyo byakorewe kuri prototype, kuko ibi bishobora kwerekana ko imiyoboro yo hasi ikenewe kugirango ikorwe neza muri rusange.Ibyo bizasaba inductance nyinshi, kandi birashoboka ko DC irwanya-ibi ni itera. inzira.
TT Electronics 'ikora cyane ya HA66 ikurikirana nintangiriro nziza (Igishusho 3) .Ibice byayo birimo igice cya 5.3 µH, igipimo cyuzuye cyuzuye cya 2.5 A, umutwaro 2 wemerewe, hamwe na ripe ya +/- 0.5 A. Ibi bice nibyiza mubisabwa mumodoka kandi byabonye ibyemezo bya AECQ-200 mubisosiyete ifite sisitemu yubuziranenge ya TS-16949.
Aya makuru akomoka kubikoresho byatanzwe na TT Electronics plc kandi byarasuzumwe kandi birahuzwa.
TT Electronics Co., Ltd.
TT Electronics Co., Ltd.
TT Electronics Co., Ltd.
TT Electronics Co., Ltd.
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