Asali&Sabon ic LMR14030SDDAR mai canza canji hadedde guntu Kayan Lantarki Curcuits
Halayen Samfur
| TYPE | BAYANI |
| Kashi | Haɗin kai (ICs) PMIC - Masu Gudanar da Wutar Lantarki - Masu Gudanar da Canjawar DC DC |
| Mfr | Texas Instruments |
| Jerin | SAUKI SWITCHER® |
| Kunshin | Tape & Reel (TR) Yanke Tape (CT) Digi-Reel® |
| SPQ | 75Tube |
| Matsayin samfur | Mai aiki |
| Aiki | Mataki-Ƙasa |
| Kanfigareshan fitarwa | M |
| Topology | Baka |
| Nau'in fitarwa | daidaitacce |
| Adadin abubuwan da aka fitar | 1 |
| Wutar lantarki - Input (min) | 4V |
| Wutar lantarki - Input (Max) | 40V |
| Voltage - Fitarwa (min / Kafaffen) | 0.8V |
| Wutar lantarki - Fitarwa (Max) | 28V |
| Yanzu - Fitowa | 3.5A |
| Mitar - Canjawa | 200kHz ~ 2.5MHz |
| Mai gyara aiki tare | No |
| Yanayin Aiki | -40°C ~ 125°C (TJ) |
| Nau'in hawa | Dutsen Surface |
| Kunshin / Case | 8-PowerSOIC (0.154", Nisa 3.90mm) |
| Kunshin Na'urar Mai bayarwa | 8-SO PowerPad |
| Lambar Samfurin Tushen | Saukewa: LMR14030 |
Bambanci
Bambanci tsakanin DC ɗin da aka tsara na sauya wutar lantarki da samar da wutar lantarki ta hanyar ma'ana
Babban bambancin su shine tsarin samar da wutar lantarki na linzamin kwamfuta a cikin bututu (ko dai bipolar ko MOSFET) yana aiki a cikin layin layi, yayin da wutar lantarki mai sauyawa a cikin bututu yana aiki a cikin yanayin sauyawa.
1. Ma'anar wutar lantarki da aka kayyade ta DC
Mai sauya wutar lantarki yana da alaƙa da wutar lantarki mai layi.Canja wutar lantarki shine ta hanyar bututun mai sarrafa kewayawa don wucewa tashoshi mai sauri da yankewa.Ƙarfin DC zuwa babban ƙarfin AC mai ƙarfi zuwa mai canzawa don jujjuya wutar lantarki, ta haka yana samar da saitin da ake buƙata ko rukunin ƙarfin lantarki!Don sanya shi a sauƙaƙe, samar da wutar lantarki mai sauyawa shine taransifoma.Ana samun canjin wutar lantarki ta hanyar: gyarawa zuwa DC - jujjuya zuwa wutar lantarki da ake buƙata AC (yawanci don daidaita wutar lantarki) - sannan a gyara shi zuwa fitarwar wutar lantarki ta DC.
2. Ma'anar samar da wutar lantarki mai layi
Lantarki na layi shine na'ura mai canzawa wanda zai fara rage girman ƙarfin wutar lantarki na alternating current sannan ya gyara shi ta hanyar da'irar gyara don samun bugun kai tsaye.Daga nan sai a tace don samun wutar lantarki ta DC mai dan karamin wuta.Don cimma babban madaidaicin wutar lantarki na DC, dole ne a daidaita shi ta hanyar da'irar mai sarrafa wutar lantarki.
Na biyu, da bambanci tsakanin ka'idar aiki na DC kayyade canza wutar lantarki da kuma mikakke wutar lantarki
Ka'idar aiki na sauya wutar lantarki.
1. shigar da wutar AC tace ta hanyar gyarawa cikin DC;
2. Ta hanyar babban mitar PWM (ƙwaƙwalwar nisa na bugun jini) ko ƙwanƙwasa mitar bugun jini (PFM), za a ƙara DC zuwa farkon na mai canzawa;
3. Na biyu na mai canzawa yana haifar da ƙarfin lantarki mai girma, wanda aka gyara kuma an tace shi zuwa kaya;
4. An mayar da sashin fitarwa zuwa tsarin sarrafawa ta hanyar wani yanki don sarrafa tsarin aikin PWM don cimma daidaiton fitarwa.
Ka'idar aiki na samar da wutar lantarki mai layi.
1.Linear samar da wutar lantarki yafi hada da mitar gidan wuta, fitarwa rectifier tace, kula da kewaye, kariya kewaye, da dai sauransu ...
Lantarki mai layi shine ƙarfin AC na farko ta hanyar wutar lantarki ta transfoma, sannan ta hanyar tace mai gyara kewaye don samun wutar lantarki ta DC mara ƙarfi.Don cimma babban daidaiton ƙarfin lantarki na DC, dole ne a daidaita ƙarfin fitarwa ta hanyar amsawar wutar lantarki.Wannan fasahar samar da wutar lantarki ta balaga sosai kuma tana iya samun babban kwanciyar hankali tare da ɗimbin ɗimbin yawa kuma ba tare da tsangwama da hayaniyar da ke canza wutar lantarki ba.Duk da haka, rashin amfaninsa shi ne cewa yana buƙatar mai girma da girma mai girma, girma da nauyin da ake bukata na capacitor da ake bukata suma suna da girma sosai, kuma yanayin amsawar wutar lantarki yana aiki a cikin yanayin layi, don haka akwai raguwar ƙarfin lantarki akan daidaitawa. tube, a cikin fitarwa na babban aiki na yanzu, wanda ya haifar da amfani da wutar lantarki na bututun daidaitawa yana da girma, ƙananan juzu'i, amma kuma don shigar da babban ɗakin zafi.Wannan wutar lantarki ba ta dace da kwamfutoci da sauran buƙatun kayan aiki ba, sannu a hankali za a maye gurbinsu ta hanyar sauya wutar lantarki.
DC kayyade sauya wutar lantarki da samar da wutar lantarki ta layi a cikin halayen bambancin.
Babban amfani da rashin amfani na sauya wutar lantarki
Abũbuwan amfãni: Ƙananan girman, nauyi (ƙara da nauyin kawai 20-30% na samar da wutar lantarki mai layi), babban inganci (yawanci 60-70%, yayin da wutar lantarki mai layi kawai 30-40%), nasu anti-tsangwama , da fadi da kewayon fitarwa ƙarfin lantarki, modularity.
Rashin hasara: Saboda babban ƙarfin wutar lantarki da aka samar a cikin da'irar inverter, akwai wani adadin tsangwama ga kayan aikin da ke kewaye.Ana buƙatar kariya mai kyau da ƙasa.
Siffofin samar da wutar lantarki na layi.
Babban kwanciyar hankali, ƙananan ripple, babban aminci, mai sauƙi don yin fitarwa ta hanyoyi da yawa a ci gaba da daidaita wutar lantarki.Rashin hasara shine cewa suna da girma, girma, kuma basu da inganci.Wannan nau'in wadatar wutar lantarki kuma akwai nau'ikan abubuwan da yawa, daga yanayin fitarwa za'a iya zuwa da wadatar wutar lantarki, da kuma saitin wutar lantarki na yanzu a cikin ingantaccen wutar lantarki, da na yanzu (m-bard) tushen wutan lantarki.Za a iya raba ƙimar fitarwa zuwa ƙayyadaddun wutar lantarki mai ƙayyadaddun fitarwa, nau'in daidaitawa na band, da potentiometer suna ci gaba da daidaitawa da yawa.Daga fitarwa, ana iya raba nuni zuwa nau'in nuni da nau'in nuni na dijital.
DC kayyade sauya wutar lantarki da samar da wutar lantarki ta layi a cikin halayen bambancin.
Babban amfani da rashin amfani na sauya wutar lantarki
Abũbuwan amfãni: Ƙananan girman, nauyi (ƙara da nauyin kawai 20-30% na samar da wutar lantarki mai layi), babban inganci (yawanci 60-70%, yayin da wutar lantarki mai layi kawai 30-40%), nasu anti-tsangwama , da fadi da kewayon fitarwa ƙarfin lantarki, modularity.
Rashin hasara: Saboda babban ƙarfin wutar lantarki da aka samar a cikin da'irar inverter, akwai wani adadin tsangwama ga kayan aikin da ke kewaye.Ana buƙatar kariya mai kyau da ƙasa.
Bambanci tsakanin kayyade ikon sauya wutar lantarki na DC da kuma samar da wutar lantarki a cikin iyakokin aikace-aikace
1. Canja wutar lantarki kewayon aikace-aikace
Canja wutar lantarki don cikakken kewayon wutar lantarki, babu irin ƙarfin lantarki, zaku iya amfani da topology daban-daban don cimma buƙatun fitarwa daban-daban.Matsakaicin daidaitawa da ripple ɗin fitarwa ba su kai girman samar da wutar lantarki ba, kuma ingancin yana da girma.Yana buƙatar abubuwa da yawa na gefe da tsada mai tsada.Da'irar tana da ɗan rikitarwa.Canjawar wutar lantarki da aka sarrafa ta DC galibi tashi ne mai ƙarewa ɗaya, gaba ɗaya mai ƙarewa, rabin gada, ja-in-ja, da nau'ikan kewayar gada.Babban bambanci tsakaninsa da tsarin samar da wutar lantarki na linzamin kwamfuta shine cewa na'ura mai canzawa a cikin da'irar baya aiki a mitar aiki amma a yawancin kilohertz zuwa megahertz da yawa.Tushen wutar lantarki ba ya aiki a cikin layin layi, amma a cikin jikewa da yanki mai yankewa, watau a cikin yanayin sauyawa;Ana kiran nau'in sauyawa na DC da aka tsara tsarin samar da wutar lantarki.
2. Iyakar aikace-aikacen samar da wutar lantarki mai layi
Sau da yawa ana amfani da kayan wutar lantarki da aka tsara na layi a cikin aikace-aikacen ƙananan ƙarfin lantarki, kamar LDOs suna buƙatar saduwa da wani ɗan ƙaramin ƙarfin lantarki.Ƙididdigar ƙa'idodin ƙarfin lantarki da fitarwa sun fi kyau, ingantaccen aiki ya ragu, buƙatar abubuwan da ke kewaye ba su da ƙasa, kuma farashin yana da ƙasa.Da'irar abu ne mai sauƙi.
Game da Samfur
LMR14030 shine 40 V, 3.5 A mataki mai daidaitawa tare da MOSFET babban gefe.Tare da kewayon shigarwa mai faɗi daga 4 V zuwa 40 V, ya dace da aikace-aikace daban-daban daga masana'antu zuwa kera motoci don kwandishan wutar lantarki daga tushen da ba a kayyade ba.Matsakaicin halin yanzu na mai sarrafa shine 40 µA a cikin yanayin Barci, wanda ya dace da tsarin wutar lantarki.Matsakaicin ƙarancin 1 µA a yanayin kashewa na iya ƙara tsawaita rayuwar baturi.Madaidaicin kewayon mitar sauyawa mai daidaitawa yana ba da damar ko dai inganci ko girman bangaren waje don inganta shi.Madaidaicin madauki na ciki yana nufin cewa mai amfani yana da 'yanci daga aiki mai wahala na ƙirar madauki.Wannan kuma yana rage girman abubuwan waje na na'urar.Madaidaicin shigar da shigarwa yana ba da damar sauƙaƙe sarrafa mai sarrafawa da jerin ikon tsarin.Har ila yau, na'urar tana da fasalulluka na kariya kamar ƙayyadaddun kewaya-bi-sake-sake, da yanayin zafi da kuma rufewa saboda wuce gona da iri da kariyar wutar lantarki.
