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Usoro Fan5902 maka ịgbatị ojiji batrị ekwentị mkpanaaka

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Dobavljač prijenosnih elektrana

Batrị anwụọla ma ọ bụ na-anakarị chajị, kedu nke na-akawanye njọ? Taa, ekwentị mkpanaaka (karịsịa smart phones) na-ewu ewu ngwa ngwa n&39;ụwa niile, ụbọchị asaa n&39;izu, awa 24 kwa ụbọchị, ndị mmadụ na-edebe ịntanetị. Ndị ahịa na-adị ka ha na-eduzi oku olu mgbe niile, na-eziga ma nata ozi-e, zipu ozi ederede na ohere ịntanetị, amaghị. Agbanyeghị, njirimara ekwentị mkpanaaka ndị a niile ga-eri ike batrị, n&39;etiti blinks, na batrị bụ naanị otu ike.

Kedu otu m ga-esi gbatịa ekwentị mkpanaaka m? N&39;ezie, n&39;ụzọ doro anya na-eji batrị buru ibu iji dozie nsogbu ahụ, ma onye ọrụ na-achọ mgbe niile ka ekwentị dị ọkụ, na-eme ka ọ dị nro, na-adịchaghị mma, ya mere mmụba nke batrị ahụ adịghị anabata onye ọrụ. Ndị injinia na-emepụta ihe na-aga n&39;ihu na-emepụta usoro nke imeziwanye njikwa njikwa ike, na-elekwasị anya n&39;akụkụ atọ nke na-elekwasị anya na ike oriri. Na ekwentị mkpanaaka, na mgbakwunye na baseband processor na redio transceiver ugboro ugboro, akụkụ atọ nke ike ampilifaya (PA), ngosi ihuenyo na ngwa / image processor, n&39;otu n&39;otu.

Gịnị mere akụkụ atọ a ga-abụ ihe a na-elekwasị anya? Ihe kpatara ya bụ na ndị mmadụ na-ekwu okwu na ịntanetị ugbu a. N&39;oge a, a na-agbanye ihuenyo ngosi mgbe niile; na mgbakwunye, PA ga-arụ ọrụ ruo mgbe ọdụ ọdụ na-ebufe oku olu na data; N&39;ikpeazụ, ikiri ihe nkiri ịntanetị ma ọ bụ ngwa ndị ọzọ, ngwa The processor ga-anọgide na-agba ọsọ. Netwọk 3G PA dị ukwuu karịsịa mgbe mgbaàmà adịghị ike, n&39;ihi na ọ chọrọ ka ike mmepụta ike jikọọ na ọdụ ọdụ, ma debe usoro ihe achọrọ iji hụ na akara ngosi 3G adịghị mkpa.

Oriri ike nke 3GPa metụtara ike nrụpụta, ka ike nrụpụta ka ukwuu, ka a na-eri karịa ugbu a na batrị. Mgbe mgbama ebugharị na-arụpụta karịa, rie ihe ugbu a karịa. Enwere teknụzụ ọhụrụ abụọ na-ebelata ike PA: DC-DC ntụgharị na nsuso envelopu (envelopetracking).

Ojiji nke DC-DC Ntụgharị na smart ekwentị na-abawanye, ya na-arụ ọrụ ụkpụrụ bụ ibelata ike ọkọnọ voltaji nke 3GPa ma achọrọ mmepụta ike larịị chọrọ, na nwere ike dị ukwuu ibelata larịị nke ike oriri. Ngwọta a nwere ike iweta uru abụọ - nke mbụ bụ ịgbatị oku / ojiji, nke abụọ na-ebelata okpomọkụ. FAN5902 nke semiconductor na-efe efe bụ ihe ntụgharị 800mA, 6MHz buck DC-DC emere ka ọ bụrụ 3GPa, nke nwere ike belata oriri ike, gbasaa njikọ / oge okwu.

FAN5902 na-arụ ọrụ na baseband processors na 3GPA iji belata oriri ike. Ihe nrụpụta baseband ga-edozi ọkwa nrụpụta nke PA dị ka ozi enwetara site na ọdụ ọdụ, wee tụgharịa ya na voltaji njikwa nke FAN 5902, wee wepụta ya na PA. Site na ịhazigharị voltaji ọkọnọ ike na nke PA ugbu a, FAN5902 nwere ike ịgbatị opekata mpe 15% oku ekwentị yana oge ojiji data.

Ihuenyo bụ nke abụọ kasị ukwuu ike oriri akụrụngwa na-esote PA, n&39;ihi na onye ọrụ na- online nchọgharị, na-agụ email ma ọ bụ na-ekiri mobile TV / Youtube? Vidiyo, ihuenyo ngosi na-adị na steeti mgbe niile. TFTLCD bụ teknụzụ ngosipụta dị ugbu a, ọ bụkwa LED ọcha iji nye ọkụ azụ. Nke a na-emekarị bụ ihe doro anya na size LCD ngosi ahịa ihuenyo ahịa, n&39;ihi ya, ọ pụtara na e nwere ọzọ na-acha ọcha LED na-enye a nti backlight na ihuenyo ngosi, nke pụtara na ọ dị mkpa na-enye ibu mmiri iyi maka LED na ngosi ihuenyo n&39;onwe ya.

Na ekwentị mkpanaaka dị elu na ekwentị nwere ọgụgụ isi, DynamicbacklightControl, DBC na AutoMinousControl, ALC nwere ike ọ bụghị naanị na-eme ka ike dị ka o kwere mee, kamakwa kwalite ahụmịhe onye ọrụ. ALC kwesịrị iji ihe mmetụta ọkụ ambient (AmbientlightSensor) chọpụta ike ọkụ nke gburugburu gburugburu wee tọọ LED ugbu a dịka algọridim na onye ọkwọ ụgbọ ala ma ọ bụ ngwa ngwa. Ya mere, LED ugbu a ga-edozi dị ka ọnọdụ ọkụ si dị.

Mgbe gburugburu gbara ya gburugburu gbara ọchịchịrị, a na-edobe ọkụ ọkụ LED ka ọ dị ala, ebe anwụ na-aga kpọmkwem, a na-etinye ya na nke kachasị. N&39;aka nke ọzọ, DBC technology nwere ike na-achịkwa LED ugbu a dị ka oyiyi / video ọdịnaya na ngosi ihuenyo: Ọ bụrụ na ọdịnaya nke a idaha na fim ahụ adịghị, mgbe ahụ LED ugbu a dịkwa ala; ọ bụrụ na ọnọdụ na-egbuke egbuke,. DBC na-eme ihe dị ugbu a dị ka mgbama mgbama obosara obosara (PWM) nke ihe nrụpụta ihe onyonyo ma ọ bụ onye ọkwọ ụgbọ ala IC na-ebupụta, na-agbanwe ọdịnaya ihe nkiri egosipụtara.

Ọnụọgụgụ 3 (a) na-egosi ikpe ALC na DBC na-arụ ọrụ nke semiconductor na-efe efe nwetara site na mmemme ngwanrọ enwetara ihuenyo iji gosipụta ọkwa nchapụta ìhè ambient (aka ekpe) yana LED ugbu a kwekọrọ. Ọ bụ ezie na a kọwaghị ya nke ọma, a ka nwere ike ịhụ "mkpisi ngosi na-acha anụnụ anụnụ" nke PWM dị n&39;èzí na ọkwa PWM static na-abawanye ma ọ bụ na-ebelata dị ka ihe oyiyi ma ọ bụ ihe nkiri. Fan5702 nke semiconductor na-efe efe bụ onye ọkwọ ụgbọ ala mgbapụta 180mA nke nwere interface I2C, nke nwere ike ịnye ọrụ ALC na DBC site na nhazi.

A na-ejikọta ihe mmetụta ọkụ ambient na ngwa ngwa ma ọ bụ ihe nrụpụta baseband, na-enweta ntinye ma chọpụta ọkwa LED dị ugbu a dị ka algọridim nke ọnọdụ ọkụ mpụga. A na-ezigara data a na FAN 5702 site na interface I2C, wee tọọ LED ugbu a dịka ozi ahụ siri dị. Emebere PWM / EN pin nke FAN5702 maka PWM, ma jikọọ ya na onye ọkwọ ụgbọ ala LCD IC.

Nke ikpeazụ na-eziga akara PWM na FAN 5702 dị ka ihe onyonyo / ọdịnaya vidiyo si dị na ihuenyo ngosi. Ọgụgụ 4 na-egosi modul sistemu nke FAN5702 nke ALC na DBC n&39;otu oge. Ihuenyo ekwentị mkpanaaka na-eji ALC na DBC chekwaa ihe ruru 50% nke oriri ike.

Akụkụ nke atọ kasị ukwuu ike oriri bụ ngwa / ihe onyonyo ihe; ọ bụrụ na agbanyere ihuenyo ngosi, chipset ga-arụ ọrụ nke ọma. Otú ọ dị, ọ bụghị mgbe nile na ike zuru oke. Dịka ọmụmaatụ, mgbe chipset na-agba ọsọ na ọkwa ike dị ala, enwere ike iji teknụzụ mgbanwe mgbanwe voltaji (DVS) rụọ ọrụ.

Nke a bụ ihe ngwọta nke dabara adaba maka ekwentị mkpanaaka na ngwaahịa eletrọnịkị ndị ọzọ enwere ike ibugharị n&39;ihi na enwere ike ibelata voltaji ọkụ ha ka ọ bụrụ voltaji dị ala ma na-enye ohere ka chipset rụọ ọrụ na ugboro ole dị ala, si otú a na-enyere aka belata oriri ike. N&39;ebe a, nchikota nke ike (P) na ugboro ugboro (f) na isi voltaji (V) nke isi voltaji (V) bụ nha. Ya mere, ngwa ngwa ngwa ngwa nke onye nrụpụta, ka ike na-esiwanye ike.

Na ka isi voltaji na-ebelata, ike oriri na-ebelata site square ọsọ. Enwere ike ịkwado ihe nhazi ngwa site na Fan5365. FAN5365 bụ 6MHz, 800mA / 1A nzọụkwụ DC-DC ntụgharị nwere interface I2C.

Ọ nwere ike ịnye mmetụta nchekwa ike kacha mma. Enwere ike iji interface I2C mee ihe na-agbanwe agbanwe na voltaji na nso 12.5mV ruo 1.

975V iji zute ikike nhazi chọrọ nke chipset. Mgbe onye ọrụ na-elele vidiyo na webụ, FAN 5365 nwere ike ịnye 1.2V isi voltaji maka ngwa ngwa iji nweta ike nhazi kachasị, ma ozugbo emechara ihe nkiri ahụ, voltaji ga-adaba na 0.

8V, tinye ala na-arụ ọrụ steeti. Enwere teknụzụ dị mfe ma ọ bụ mgbagwoju anya dị iche iche ugbu a, nke nwere ike melite arụmọrụ njikwa ike nke ekwentị mkpanaaka (karịsịa smart phones). Site na ijikọ otu ma ọ bụ ihe ngwọta njikwa ike atọ niile nke PA, ihuenyo ngosipụta na isi ihe nrụpụta, n&39;otu n&39;otu, nwere ike ịchekwa ike, gbasaa oge ọrụ mkpanaka.

Atụmatụ ndị a sitere na ahụmịhe na onye ọrụ ekwentị mkpanaaka, n&39;ihi na ndị ọrụ na-eche banyere ya, anaghị apụta na ekwentị mkpanaaka, enweghị m fanye ekwentị na-enweghị ekwentị mkpanaaka ugboro ugboro.

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