Fan5902 nzira yekuwedzera nharembozha kushandiswa kwebhatiri

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - ପୋର୍ଟେବଲ୍ ପାୱାର ଷ୍ଟେସନ୍ ଯୋଗାଣକାରୀ

Bhatiri rakafa kana rinowanzochajwa, izvo zviri kunyanya kunetsa? Nhasi, nharembozha (kunyanya mafoni akangwara) ari kukurumidza kufarirwa pasi rese, mazuva manomwe pasvondo, maawa makumi maviri nemana pazuva, vanhu vanochengeta online. Vatengi vanoita kunge vanogara vachifonera manzwi, kutumira uye kugamuchira maemail, kutumira mameseji uye kuwana Internet, havamboziva. Nekudaro, ese aya maficha enharembozha achadya simba rebhatiri, pakati pekupenya, uye bhatiri isimba rimwe chete.

Ndingawedzera sei nharembozha yangu? Ehe, dzidziso inoshandisa bhatiri rakakura kugadzirisa dambudziko, asi mushandisi anogara achida kuti foni ive yakareruka, uye yakapfava, yakaderera, saka kuwedzera kwebhatiri hakugamuchirwi nemushandisi. Madhizaini mainjiniya anoenderera mberi nekugadzira nzira yekuvandudza mashandiro esimba rekutonga, uye kutarisa pazvikamu zvitatu zvekutarisa pakushandiswa kwesimba. Munharembozha, kuwedzera kune baseband processor uye radio frequency transceiver, zvikamu zvitatu zvinogona kudyiwa nemagetsi amplifier (PA), ratidza skrini uye application / mufananidzo processor, zvichiteerana.

Sei zvikamu zvitatu izvi zvichave zvinotariswa? Chikonzero ndechekuti vanhu vava kutaura neinternet. Panguva ino, iyo skrini yekuratidzira inogara yakavhurwa; uyezve, PA inofanirwa kushanda kudzamara iyo base chiteshi ichitumira manzwi emafoni uye data; Chekupedzisira, kuona online mafirimu kana mamwe maapplication, maapplication Iyo processor inofanirawo kuramba ichimhanya. Iyo 3G network PA inonyanya kukura kana chiratidzo chisina simba, nekuti inoda simba rakawanda rekubuda rekubatanidza kune base station, uye chengetedza mutsara zvinodiwa kuti uve nechokwadi chekuti chiratidzo che3G hachina basa.

Iko kushandiswa kwesimba kwe3GPa kune hukama neiyo inobuda simba, iyo yakakura simba rekubuda, iro razvino mubhatiri rinopedzwa. Kana iyo inofambiswa chiratidzo ichiwedzera kubuda, shandisa yakawanda ikozvino. Kune maviri matekinoroji matsva anoderedza PA simba rekushandisa: DC-DC inoshandura uye envelope yekutevera (envelopetracking).

Kushandiswa kweiyo DC-DC inoshandura munharembozha iri kuwedzera, misimboti yayo yekushanda ndeyekudzikisa magetsi emagetsi e3GPa kune ese anodiwa emagetsi ekubuda, uye anogona kudzikisa zvakanyanya mwero wekushandiswa kwesimba. Iyi mhinduro inogona kuunza mabhenefiti maviri - yekutanga ndeyekuwedzera kufona / kushandiswa, yechipiri inoderedzwa kupisa kupisa. Iyo FAN5902 yeinobhururuka semiconductor ndeye 800mA, 6MHz buck DC-DC inoshandura yakagadzirirwa ku3GPa, inogona kuderedza kushandiswa kwesimba, kuwedzera kubatana / nguva yekutaura.

FAN5902 inoshanda nebaseband processors uye 3GPA kuderedza kushandiswa kwemagetsi. Iyo baseband processor inoisa iyo inobuda simba level yePA zvinoenderana neruzivo rwakagamuchirwa kubva pachigadziko chiteshi, uye wozoishandura kune yekudzora voltage yeFAN 5902, uye yoibuditsa kuPA. Nekugadzirisa zvine simba magetsi ekupa magetsi uye yazvino yePA, FAN5902 inogona kuwedzera ingangoita gumi neshanu muzana mbozha nhare uye nguva yekushandisa data.

Iyo skrini yekuratidzira ndiyo yechipiri yakakura mashandisirwo emagetsi chikamu mushure mePA, nekuti mushandisi ari pamhepo kubhurawuza, kuverenga email kana kuona nharembozha / Youtube? Vhidhiyo, iyo skrini yekuratidzira inogara iri mudunhu. TFTLCD parizvino yakakosha kuratidza tekinoroji, uye ichena LED yekupa backlight. Maitiro aya anonyanya kuoneka muhukuru LCD kuratidza skrini musika, saka zvinoreva kuti kune yakawanda chena LED yekupa iyo inoshanda backlight kune yekuratidzira skrini, izvo zvinoreva kuti zvinodikanwa kupa yakakura mafungu e LED uye kuratidza skrini pachayo.

Mumafoni epamusoro-soro uye mafoni akachenjera, DynamicbacklightControl, DBC uye AutoMinousControl, ALC haigoni kungoita simba rekushandisa zvakanyanya sezvinobvira, asiwo inowedzera ruzivo rwevashandisi. Iyo ALC inofanirwa kushandisa ambient light sensor (AmbientlightSensor) kuona kusimba kwechiedza chenzvimbo yakatenderedza uye kuseta iyo LED ikozvino maererano nealgorithm mu LED driver kana application processor. Naizvozvo, iyo LED ikozvino ichaiswa zvinoenderana nemwenje mamiriro.

Kana nharaunda yakapoteredza yakasviba zvakanyanya, iyo LED ikozvino inoiswa kune yakaderera, nepo zuva rakananga, inoiswa kune yakanyanya. Kune rimwe divi, tekinoroji yeDBC inogona kudzora iyo LED ikozvino maererano nemufananidzo / vhidhiyo yemukati pane yekuratidzira skrini: Kana zvirimo zvechiitiko mufirimu zvakaderera, saka iyo LED ikozvino yakadererawo; kana chiitiko chacho chakajeka,. DBC inoronga zvazvino zvinoenderana neiyo pulse wide modulation (PWM) chiratidzo chinoburitswa nemufananidzo processor kana LCD mutyairi IC, uye kuchinja inoratidzwa bhaisikopo zvirimo.

Mufananidzo 3 (a) unoratidza iyo ALC neDBC inoshanda makesi anowanikwa neinobhururuka semiconductor kuburikidza neiyo skrini yekutora software chirongwa kuratidza ambient kupenya kwechiedza (kuruboshwe) uye inoenderana LED ikozvino. Kunyangwe zvisingatsanangurirwe zvizere, iyo "blue show stick" yekunze PWM inogona kuramba ichionekwa kuti iyo static PWM level inowedzera kana kuderera semufananidzo kana bhaisikopo zvirimo. Iyo fan5702 yeiyo inobhururuka semiconductor ndeye 180mA yekuchaja pombi LED mutyairi ane I2C interface, iyo inogona kupa ALC uye DBC mabasa kuburikidza nekumisikidza.

Iyo ambient light sensor yakabatana kune processor processor kana baseband processor, inogamuchira yekupinza uye inosarudza iyo yakakodzera LED ikozvino nhanho zvinoenderana nealgorithm yekunze kwemwenje mamiriro. Iyi data inotumirwa kuFAN 5702 kuburikidza neI2C interface, uye wozoisa iyo LED ikozvino maererano neruzivo. Iyo PWM / EN pini yeFAN5702 yakarongerwa PWM, uye yakabatana neLCD mutyairi IC.

Iyo yekupedzisira inotumira iyo PWM siginecha kuFAN 5702 zvinoenderana nemufananidzo / vhidhiyo yemukati pane yekuratidzira skrini. Mufananidzo 4 unoratidza system module yeFAN5702 yeALC neDBC panguva imwe chete. Foni inotaridza sikirini inoshandisa ALC neDBC kuchengetedza inosvika 50% yesimba rekushandisa.

Yechitatu yakakura simba rekushandisa chikamu ndeye application / mufananidzo processor; kana iyo skrini yekuratidzira yakavhurwa, chipset inomhanya zvizere. Zvisinei, haisi nguva dzose ine simba rakazara. Semuenzaniso, kana chipset ichimhanya padanho repasi remagetsi, dynamic voltage gadziriso tekinoroji (DVS) inogona kushandiswa.

Iyi ndiyo mhinduro yakanyatsokodzera nharembozha uye zvimwe zvinotakurika zvigadzirwa zvemagetsi nekuti simba ravo rekupa magetsi rinogona kudzikiswa kusvika kune yakaderera core voltage uye inobvumira chipset kushanda pane yakaderera frequency frequency, nekudaro ichibatsira kudzikisa simba rekushandisa. Pano, huwandu hweSimba (P) uye frequency frequency (f) uye iyo core voltage (V) yeiyo core voltage (V) yakaenzana. Naizvozvo, iyo inokurumidza kuwandisa kweiyo processor, iyo inowedzera simba rekushandisa.

Uye sezvo iyo yepakati voltage inoderedzwa, mashandisiro emagetsi anoderedzwa nekumhanya kweskweya. Iyo application processor inogona kupihwa simba neFan5365. FAN5365 ndeye 6MHz, 800mA / 1A nhanho DC-DC inoshandura ine I2C interface.

Inogona kupa yakanakisa kuchengetedza simba. Iyo I2C interface inogona kushandiswa dynamically kuronga voltage muhuwandu hwe12.5mV kusvika 1.

975V kuti isangane nekugadzirisa simba zvinodiwa zve chipset. Kana mushandisi achiona vhidhiyo pawebhu, iyo FAN 5365 inogona kupa 1.2V core voltage yeapuro processor kuti iwane yakanyanya kugadzirisa simba, uye kana bhaisikopo rapera, voltage inodonha kusvika 0.

8V, pinda muchikamu chepasi chekushanda. Parizvino kune akasiyana siyana akapusa kana akaoma matekinoroji, ayo anogona kuvandudza simba rese manejimendi kuita kwenharembozha (kunyanya smart phones). Nekubatanidza imwe kana ese matatu emagetsi manejimendi mhinduro dzePA, ratidza skrini uye processor core, zvichiteerana, inogona kuchengetedza simba, kuwedzera mafoni ekushanda maawa.

Aya madhizaini anobva kune nharembozha ruzivo rwemushandisi uye kudiwa, nekuti vashandisi vane hanya chaizvo, havaratidzike pane nharembozha, ini handifanire kubhadharisa mbozha mbozha pasina kazhinji nharembozha.