Abubuwan da suka dace don LP87524BRNFRQ1 VQFN-HR26 Abubuwan Sabuwar Asalin Gwajin Haɗaɗɗen Wuta Mai Rarraba Chip IC LP87524BRNFRQ1

1.

Aikin mai canzawa

Mai juyawa shine na'urar da ke juyar da sigina zuwa wata sigina.Sigina wani nau'i ne ko mai ɗaukar bayanan da ke wanzuwa, kuma a cikin kayan aikin kayan aiki na atomatik da tsarin sarrafawa ta atomatik, ana canza sigina sau da yawa zuwa wata siginar da aka kwatanta da ma'auni ko adadin ƙididdiga don haɗa nau'ikan kayan aiki guda biyu tare, don haka mai sauya sau da yawa shine tsaka-tsakin hanyar haɗi tsakanin kayan aiki biyu (ko na'urori).

2.

Yadda ake buck converters aiki

Mai canza buck shine tsarin samar da wutar lantarki, nau'in na'urar da ke dauke da maɓalli (yawanci MOSFET) don kunna da'irar da sauri da kashewa, wannan saurin sauyawa yana samar da igiyoyin murabba'i, idan an saita zagayowar aikin na sauya zuwa 50%, watau canji yana kan 50% na lokaci, matsakaicin ƙarfin lantarki zai zama 50% na shigarwar.

Ya kamata a sassauta igiyar murabba'in don samar da iko mai amfani kuma galibi ana amfani da inductor da capacitors a cikin jerin don cimma wannan aikin.Wannan haɗin an san shi da LC low-pass filter, inda halayen inductor ke fitar da halin yanzu kuma capacitor yana tsayayya da canje-canje a cikin wutar lantarki.Haɗin haɗin gwiwa yana samar da ingantaccen ƙarfin lantarki mai sauƙi tare da ƙananan ripple.Misali, idan ƙarfin shigarwar ya kasance 10V kuma mai kunnawa yana amfani da zagayowar aikin 50%, ƙarfin fitarwa zai zama 5V.

Wani abin da ake buƙata na mai sauya buck shine diode ko wani maɓalli wanda aka haɗa a layi daya tare da inductor.Wannan shi ne don rama aikin inductor, inda halin yanzu a cikin inductor ba za a iya canza shi nan take ba, yana kare bututun masu sauyawa daga lalacewa ta hanyar wuce gona da iri.

Mai sauya buck shima ya ƙunshi ƙarin kewayawa don tabbatar da ingantaccen ƙarfin fitarwa.Mai juyawa yana amfani da tsarin sarrafa madauki mai rufaffiyar tare da ra'ayi mara kyau don saka idanu kan fitarwar wutar lantarki da kuma daidaita zagayowar aiki na masu sauyawa don daidaita ƙarfin fitarwa.

3.

Abubuwan ƙira don masu canza canjin kuɗi

Masu sauya buck suna da inganci sosai, tare da wasu na'urori suna samun ingantacciyar inganci fiye da 95%.

Masu sauya buck sun fi tsada fiye da masu sarrafa linzamin kwamfuta a manyan matakan wutar lantarki, inda farashin sanyaya na mai sarrafa layin zai iya zama ƙasa da farashin amfani da mai sauya buck.

fitowar mai sauya buck yana ƙunshe da amo, wanda ke nufin cewa fitarwar mai sarrafa linzamin kwamfuta ya fi kwanciyar hankali kuma ya fi dacewa da aikace-aikacen da ke buƙatar ƙaramar ƙarar fitarwa.

masu daidaita layi na iya ba da amsa da sauri don shigarwa da canje-canjen fitarwa idan aka kwatanta da masu canza canjin kuɗi.