I-PocketPD Kungumbono omncane omuhle: a ukunikezwa kwamandla ebhentshini Inikwa amandla yi-USB-C futhi ingena ngokoqobo ephaketheni lakho, idizayinelwe ukuthi ihambe nawe noma yikuphi ngaphandle kokudela ukulungiswa okuhle kwe-voltage kanye nesimanje. Iqale njengephrojekthi yomthombo ovulekile ngemuva inqubo ende yokuphindaphinda, ukucwenga kokubili i-hardware ne-firmware ngosizo lomphakathi ukuze uthole okuningi kuzinga Lokuletha Amandla e-USB futhi, ikakhulukazi, kumodi ye-PPS (I-Programmable Power Supply).
Ngeshaja yesimanje noma ibhange lamandla elihambisanayo, lamandla “umceli” Ixoxisana ngephrofayela engcono kakhulu futhi ikunikeza okukhiphayo okungalungiseka ngokugcwele, ngokuvikela okuhlanganisiwe kanye nesixhumi esibonakalayo esicacile esisekelwe kusikrini se-OLED nezilawuli ezibonakalayo. Awekho ama-frills ayinkimbinkimbi: izinkinobho, isifaki khodi nokufunda idatha yesikhathi sangempela ukwenza okudingayo ngaphandle kokuphazamiseka.
Iyini i-PocketPD futhi kungani ihlukile?
Isihluthulelo se-PocketPD ukuthi ayinazo iziguquli ze-buck/boost ebhodini: isekela ngokuqondile izingxoxo ze-PPS I-USB-C isetshenziselwa ukucela i-voltage oyifunayo kanye namanje eshajani. Lokhu kuvumela idizayini elula futhi ehlangene kakhudlwana, elahlekelwa amandla amancane nokushisa okuncane, ekahle njengomthombo wamandla ophathekayo noma ukuhlola ibhentshi lapho udinga ukuxilonga izinkinga ensimini. Ngaphezu kwalokho, isebenza njengomhloli wephrofayela ye-PD 3.0okwenza kube ithuluzi eliwusizo eliphindwe kabili kulabo abasebenza nge-USB-C.
Ifilosofi yayo yokusebenzisa i-pragmatic: uma uxhuma ishaja yesimanje noma ibhethri nge-PPS (eziningi ezivela ezinkampanini ezidumile ezifana I-Anker, i-Ugreen noma i-Baseus (sebevele bayayisekela), idivayisi ikuvumela ukuthi ucele i-voltage enembile kanye namanani amanje. Futhi uma i-PPS ingatholakali, I-firmware iwela kahle kuphrofayela ejwayelekile ye-5V (PDO) futhi ikuvumela ukuthi ulungise iphrofayili ngokucindezela isikhathi eside inkinobho ye-Volt/Amp ukuze ulondoloze ukusetshenziswa cishe kunoma yisiphi isimo.
Indima ye-PPS ngaphakathi kwe-USB Power Delivery
Imodi Ukunikezwa kwamandla okuhlelekayo Yethulwe nge-USB PD 3.0 ukuze kulungiswe kahle ukushajwa kwebhethri ngokunciphisa ukulahleka kokuguqulwa. Empeleni, i-PPS ivumela idivayisi edlayo ukuthi icele i-voltage eqondile kanye nomkhawulo wamanje oyidingayo emthonjeni. ukulungisa amanani ngezinyathelo ezinhle kakhuluNgakho-ke, nge-PocketPD ungaziphatha njengomthombo wangempela webhange, ukulawula imingcele kalula futhi ngaphandle kokwengeza izigaba zokuguqulwa ezingadingekile.
Inothi elibalulekile: umthamo wangempela uncike kuso sonke isixhumanisi seketango. Amandla okugcina anqunyelwe ingxenye ebuthakathaka.Isibonelo, uma ishaja yakho iletha u-5 A kodwa ikhebula ligunyazwe u-3 A kuphela, isistimu ngeke idlule ku-3 A. Ngokufanayo, ububanzi be-voltage ye-PPS luyahlukahluka kuye ngokuthi ishaja: Amanani ajwayelekile angu-3,3–11 V noma 3,3–21 VFuthi i-PocketPD ivumelana nalokho okuxoxwa ngumthombo ngamunye.
Ububanzi bokuphumayo, amamodi e-CV/CC, nobumbudumbudu bokulungisa
Ngokunikezwa kwamandla okuhambisanayo, ungakwazi ukulungisa i-voltage isuka ku-3,3V iye kwephezulu evunyelwe ishaja (imvamisa engu-20–21V). 20 mV izinyatheloizinga lokulawula elijwayelekile lamandla aselabhorethri. Okwamanje, umkhawulo olungisekayo uqala ku-1 A futhi ukhuphukele kwephezulu etholakalayo ye-PPS. 50 mA izinyathelo, ilungele ukuvikela ama-prototypes azwelayo noma ukugcina izivivinyo ngaphakathi kwemikhawulo ephephile.
Kuyafaneleka ukugqamisa isici esithile semodi ye-PPS kule phrojekthi: Umkhawulo wamanje ongaphansi kuka-1 A awusekelwe e-DC lapho usebenza ku-PPS. Uma udinga ukuhlola imithwalo ephansi kakhulu ngokulawula okuhle kwamanje, kuzomele ucabangele lo mkhawulo endleleni yakho yokuhlola ukuze ugweme izimanga.
Ihambisana namashaja, amabhange kagesi nemoto
Ukuhlukahluka kwe-PocketPD kubonakala ekuphakeleni kwayo: Isekela okokufaka kwe-USB-C phakathi kuka-3,3 no-21 V kuze kufike ku-5 ALokhu kuvula umnyango wokusebenza ngamashaja odongeni, amabhange kagesi, namashaja ezimoto. Ezimeni zenkundla, ukuthwala ibhange lamandla le-PPS esikhwameni sakho kuxazulula izinkinga eziningi ngaphandle kokuncika kugridi kagesi, futhi endaweni yokusebenzela, ishaja ye-PD enhle izokunikeza i-headroom edingekayo ukuze uthole izivivinyo ezinzima kakhulu.
Uma unokungabaza mayelana nokuhambisana, kungcono ukuthi uhlole imininingwane yeshaja: lokho kukhuluma nge-PD 3.0 (noma kamuva) nge-PPSAmashaja angenayo i-PPS azoqhubeka nokusebenza ngephrofayela ye-5V PDO, kodwa uzolahlekelwa ukulungiswa okuqhubekayo kwamandla kagesi. Futhi ungakhohlwa: Sebenzisa izintambo eziqinisekisiwe Ngokuqina okudingayo; kuyicala lakudala lekhebula eliwumgogodla wesistimu futhi likukhawulele ngaphandle kwakho nokuqaphela.
Isibonisi, izilawuli, nememori yephrofayili
I-interface ixazululwa nge-a Isibonisi esingu-0,96, OLED Inikeza ukufundwa kwe-voltage ecacile, yamanje, nesimo, futhi ifaka izilawuli ezibonakalayo (isifaki khodi nezinkinobho) zokuzulazula kwepharamitha okuqondile. Kulula ukuyisebenzisa, ngokusabela ngokushesha futhi awekho amamenyu ayinkimbinkimbi, okuyinhlanganisela enkulu uma ukala futhi ungafuni ukuchitha isikhathi.
Imininingwane esebenzayo: iphrofayili ekhethiwe (i-voltage kanye nomkhawulo wamanje) Ilondolozwe kumemori ye-flash ye-microcontroller futhi ibuyiselwe lapho iqalwa kabusha. Lokhu kusho ukuthi ungavala, uvule futhi, futhi uqhubeke lapho ogcine khona—into leyo, ekusetshenzisweni kwansuku zonke, ebongeka kakhulu kunalokho ongase ukucabange.
Izakhiwo zangaphakathi nezinto zikagesi
Enhliziyweni yesistimu kukhona a I-Raspberry Pi RP2040 (Cortex-M0+) eno-16 MB wememori ye-flash ye-QSPI, enesibopho somqondo, i-UI, nokulawula ukuxoxisana. Iphrosesa yephrothokholi ye-USB PD isetshenziswa njengobuchopho bephrothokholi ye-USB PD. AP33772 sump isilawuli, esisingatha inkhulumomphendvulwano nesilayishi ukuze sishune kahle amapharamitha e-PPS ngokunemba nokwethembeka.
Ngomzila wamandla nezilinganiso, umklamo uhlanganisa inzwa yamanje kanye ne-voltage onboard kanye no-5 A (23 V max.) “ideal diode” uhlobo lokushintsha komthwalo, okunciphisa ukwehla kwamandla kagesi futhi kuthuthukise ukusebenza kahle. Le ndlela, kuhlanganiswe nokungabikho kwama-converter e-DC-DC ebhodini, inciphisa ukushisa futhi yenza kube lula indlela phakathi komthombo kanye nesekhethi yakho ngaphansi kokuhlolwa.
Ukuvikela nokuvikeleka
Njengoba iwumthombo wamandla osetshenziswa kuma-prototypes nezinto zikagesi ezibucayi, ukuvikela bekubalulekile. Ekufakeni, kukhona I-TVS/ESD ku-DC, i-USB 2.0 ne-VBUS ukumboza iziqongo kanye nokukhishwa; nokuphumayo, i-TVS/ESD ku-VOUT kanye ukuvikelwa kwe-flyback diode Ngemithwalo ye-inductive, ngaphezu kokuvikelwa kumasekethe amafushane, i-reverse yamanje, kanye nezinguqulo ezibhaliwe, futhi i-voltage ehlehlayo esitimeleni.
Sekukonke, isistimu yezokuphepha yakhelwe ukuze amaphutha amancane angonakalisi isikhathi sakho noma alimaze ihadiwe yakho. Noma kunjalo, izincomo zomenzi zicacile: Hlonipha imikhawulo yeshaja yakho, ikhebuli, kanye ne-PocketPD ngokwayo.futhi njalo uqinisekise ukucushwa ngaphambi kokuxhuma imithwalo ebucayi.
Ukuklama ngokomzimba, ukuhlanganisa kanye nokuchithwa
I-chassis kanye ne-encoder knob kukhona I-3D iphrintiwe Yenziwe ngezinto ezinokushisa okuphezulu (i-PETG ezinguqulweni ezibhaliwe), isebenza kahle esimweni sezulu esishisayo sasehlobo noma ngaphansi kwamabhentshi okuhlola anzima. Idizayini ibeka phambili ubulula kanye nokulungiseka okujwayelekile komhlaba womenzi.
Isici esisodwa esithakazelisayo yizibuthe ezihlanganiswe ngemuva: Isetshenziselwa ukuyinamathisela ezindaweni zensimbi. (njengebha yomthengisi wasebhange) futhi, ngenhlanhla, yenza njenge i-passive heat sinkukusiza ukukhipha ukushisa ngesikhathi sokusetshenziswa isikhathi eside. Lesi sici esilula siwusizo kakhulu kuma-workshops namalabhorethri lapho udinga khona ukuthi umthombo wamandla utholakale kalula futhi ubonakale ngokucacile.
Ukuxhumana kokuphumayo nokuhluka
Njengokwejwayelekile, i-PocketPD iza nayo amatheminali amabhanana athengiswa ngaphambiliisilungele ukusetshenziswa nezinsimbi ezijwayelekile. Izinhlobo ezimbili nazo zinikezwa: eyodwa enebhulokhi isikulufu esingalahleka engeziwe, futhi enye ehlanganisa izixhumi ezimbili ezengeziwe ezingakhokhiwe ukuze ukwazi ukukhetha oyithandayo: Anderson Powerpole PP15/45 o I-XT60Kuyindlela eguquguqukayo yokuyivumelanisa ne-ecosystem yakho ngaphandle kokukuphoqa ukuba ufike ezingeni elilodwa.
Sicela uqaphele ukuthi, njengoba kushiwo, Zonke izindlela zokuphuma zihlanganyela ujantshi ofanayo kwangaphakathi; okungukuthi, awawona amashaneli azimele. Lokhu kubalulekile uma uzama ukugwema ukuxhumeka ngesikhathi esisodwa okungase kwethule impendulo engafuneki noma amaluphu aphansi angahlanzekile.
Imininingwane ebalulekile
Kulabo abafuna ukuya ngqo ephuzwini, nasi isifinyezo sezobuchwepheshe samaphoyinti afaneleka kakhulu. Khumbula ukuthi ukungezwani okukhulu okungaxoxiswana ngakho Kuya ngeshaja yakho ye-PPS futhi yamanje ikhawulwa into ebuthaka kakhulu kuketango (ishaja/ikhebula):
- Ukungena: Uhlobo lwe-USB3,3–21 V kufika ku-5 A
- Ukuhamba: 3,3–20/21 V kufika ku-5 A (kuya nge-PPS etholakalayo)
- izindlela: CV (20 mV/step) kanye CC (50 mA/step, ubuncane obungu-1 A ku-PPS)
- Isikrini: 0,96″ OLED
- I-MCU: I-RP2040 + 16 MB QSPI
- Iphrothokholi ye-IC: I-AP33772 (Isinki yePD)
- Ukuvikela: i-short circuit, i-reverse current, i-TVS/ESDi-flyback; okuhlukile kuhlanganisa i-reverse voltage
- Ubukhulu: 86 × 55 × 21 mm; isisindo: 63 g
Ngokuphathelene nezinga lokushisa lokusebenza, kukhona izinkomba kububanzi obubili kumanothi obuchwepheshe ahlukene: 0-80 ºC y 0-45 ºCUma uzoyigcizelela eduze komkhawulo ongaphezulu, yincike kuzibuthe/kusinki wokushisa bese uqapha okukuzungezile ukuze ugcine amamajini anengqondo.
Umthombo ovulekile ngempela: i-firmware, i-hardware, ne-casing
Ingxenye yesofthiwe ishicilelwe ngaphansi Ilayisense ye-MITukuhlanganisa amalabhulali angokwezifiso kanye nezinsiza zomphakathi zezinkampani zangaphandle. I-schematic ne-PCB zakhiwe ngo I-KiCad 9.x futhi izokhishwa ngaphansi CC BY-SA 4.0Ngenkathi ikesi eliphrintiwe le-3D liyatholakala ukuze wenze ngendlela othanda ngayo. Lokho kusho ukuthi, Ungafunda, ulungise, futhi ufake isandla kokubili kukhodi kanye nakugesi kanye nomakhenikha.
Uma ungathanda ukufunda okwengeziwe nge-PPS, kunezinkomba emphakathini eziya kokuqukethwe kusuka I-GreatScott! kanye ne-ElectricArc240Lezi ziwusizo kakhulu ekuqondeni okuyisisekelo futhi uzisebenzise kumaphrojekthi akho. Inqolobane ihlanganisa... Gerber amafayela kanye firmware Ilungele ukuthi uzenzele iyunithi uma uthanda i-DIY.
Ukusetshenziswa kwenkundla kanye nephrofayili yobungcweti
Iqembu elilandela i-PocketPD livela emhlabeni wezinzwa ezikude nezinsimbi zasenkambu. Leso sizinda sichaza izinqumo zokuklama ezifana ekhetha ukulawula ngokomzimbaukufundeka okucacile, uzibuthe wangemuva, nomzimba ohlangene, ngaphandle kokuziqhayisa, Isebenza uma uyidinga.Kungakhathaliseki ukuthi uchwepheshe, ungumfundi wonjiniyela, noma umenzi, leli ithuluzi eliguquguqukayo elingeke lithathe isikhala esiningi kubhaka wakho.
Okunye futhi ukuthi i-PocketPD nayo isebenza njenge Umhloli wephrofayela ye-PDLokhu kuyasiza ekuqinisekiseni amashaja namakhebuli kanye nokuqinisekisa ukuthi yini oxoxisana nayo esimweni ngasinye. Lokhu kusebenza kokuphakelwa kwamandla okumbaxambili/kokuhlola kusebenza ikakhulukazi kumalebhu okufundisa nezinsiza zokunakekela, lapho isikhathi siwumongo futhi ungafuni ukuphatha uhhafu weshalofu lezisetshenziswa.
Ukukhiqiza, ukulawula izinga kanye nempahla
Ukukhiqiza nokuhlanganisa kuphathwa I-ElecrowOchwepheshe ekugijimeni kokuphrinta okusheshayo basheshise ukuthuthukiswa ngokuphindaphinda okuningi. Iyunithi ngayinye idlula ukuhlolwa komsebenzi ngaphambi kokushiya ukuqinisekisa ukuthi ifika esimweni esiphelele esivela efektri, into ethi, lapho sikhuluma ngokunikezwa kwamandla, ibonakala ekusetshenzisweni kokuqala.
Ukupakishwa kufune ukunciphisa imfucuza ngaphandle kokudela isivikelo. ukugwema igwebu ngokweqileI-casing ne-knob ziphrintiwe nge-3D nge-filament ephezulu yokushisa ukuze imelane nezimo ezifudumele namaseshini amade, isinqumo esisebenzayo nesimeme ngokuhambisana nomoya ovulekile.
Logistics kanye nokutholakala
Ngemuva kweqoqo ngalinye lokukhiqiza, ukuthunyelwa kuhanjiswa ngozakwethu wokugcwalisa we-Crowd Supply, I-Mouser Electronicsukusatshalaliswa komhlaba wonke. Uma ungathanda ukulandela izindaba zakamuva, ithimba limemezele inguqulo ethuthukisiwe futhi wabelane ngenqubekelaphambili nezibuyekezo ngokusebenzisa iziteshi zephrojekthi ukuze ungaphuthelwa lutho.
Ukuvuthwa kwephrojekthi, ubungozi kanye nokuziphendukela kwemvelo
Idizayini idlule imizuliswano eminingi isiqinisekiso sokuqina nokuthembekaUmsebenzi oyinhloko uzinzile isikhathi eside, futhi izibuyekezo ze-firmware zigxila kukho lawula ukuthuthukiswa nolwazi lomsebenzisi. Mayelana nokuhlinzekwa, kunomthethosivivinywa wezinto zokwakha oguquguqukayo onciphisa umthelela wokushoda kwesitoko okungenzeka ezingxenyeni ezibalulekile.
Njenganoma yimuphi umkhiqizo we-elekthronikhi, Kuhlale kunengozi ethile.Kodwa-ke, izinyathelo zokuvimbela zithathwe lapha, futhi ziye zaqinisekiswa ngokuqhutshwa ngempumelelo kwangaphambi kokukhiqiza. Ezingeni lomsebenzisi, “ingozi” enkulu yangempela ukuyimatanisa neshaja/ikhebuli engahambelani; yingakho sigcizelela: Khetha ukunikezwa kwamandla okulungile nekhebuli ukujabulela amandla ayo aphelele.
I-PPS, i-PD kanye ne-Quick Charge: imiqondo ecacisayo
Ngaphakathi kwe-zoo yezindinganiso zomthwalo, i-PD ne-QC yizona ezaziwa kakhulu. Ukulethwa Kwamandla we-USB Yisambulela esivumela ukuphuma kwamandla aphezulu ku-USB-C (kufika ku-100W kuzibuyekezo zakudala), ngamaphrofayili achazwe ngaphambilini futhi, kusukela ku-PD 3.0, imodi. I-PPS yokuhlela kahle. Esikhundleni salokho, Ukukhokha okusheshayo (I-Qualcomm) iwubuchwepheshe bokuphathelene obushaja ngokushesha omakhalekhukhwini; izinguqulo zakamuva zithuthukise ukuhambisana kwe-PD, kodwa ukugxila kwazo akukhona ekusebenzeni njengebhange lamandla.
Inzuzo ye-PPS ngaphezu kwamaphrofayili angashintshiwe ilele ku ukunciphisa ukulahlekelwa nokushisa ngokucela ngokuqondile lokho okudingekayo nganoma yisiphi isikhathi. Ngamabhethri, lokhu kusho ukucindezeleka okushisayo okuncane nokuphila isikhathi eside; ngethuluzi elifana ne-PocketPD, kusho ukulawula iphimbo elihle ngaphandle kokufaka iziguquli ezengeziwe ezihlanganisa isethi.
Amathiphu okuhambisana nezinto zokusebenza ezisekela i-PPS
Ayanda amashaja namabhange kagesi ane-PPS emakethe. Ngaphezu kwalezo esezivele zishiwo ku-Anker, Ugreen, noma i-Baseus, ama-smartphones amaningi aphezulu (njengamamodeli akamuva e-Samsung Galaxy) namakhompyutha aphathekayo esimanje ayayisekela, okusiza abakhiqizi beshaja bafake imodi kumadivayisi abo. Noma kunjalo, Njalo hlola imininingwane yobuchwepheshe. ukuze uqiniseke ukuthi unobubanzi obungu-3,3–11 V noma obu-3,3–21 V onentshisekelo kukho kanye nesimanje esidingekayo.
Uma uxhuma umthombo okungewona owe-PPS, i-PocketPD izoshintshela kuwo 5V PDOUngasebenza ngemithwalo engu-5V futhi ulungise amaphrofayela atholakalayo, kodwa uzolahlekelwa umlingo wokulungisa i-voltage eguquguqukayo. Isebenziseka ngokuphelele kuma-electronics angu-5V, kodwa uma umgomo wakho uwukuthi ngokuvamile phakathi kuka-3,3 no-20/21 V Ezinyathelweni ezingu-20 mV, uzodinga i-PPS nakanjani.
Ukuze ugweme ukudideka: I-GPD Pocket ayiyona i-PocketPD
Kuwebhu uzobona izinkomba I-GPD PocketI-7-inch mini-laptop ene-Windows 10, i-Atom x7 processor, 8 GB ye-RAM, isitoreji se-EMMC, i-WiFi-AC, ne-USB-A/C nezimbobo ze-microHDMI. Kuyidivayisi ethokozisayo ngokuya ngosayizi nokuklama, kodwa Ayihlobene ne-PocketPD Ngale kwegeyimu yegama, uma ufuna ugesi we-USB-C ohlelekayo one-PPS, gxila ku-PocketPD; uma ufuna ikhompuyutha encane, yebo, i-GPD Pocket yindaba ehlukile.
Leyo laptop, ngendlela, ivelele nge-alloy chassis yayo, isikrini sokuthinta esingu-1920 × 1200 IPS, ibhethri engu-7000 mAh, kanye nekhibhodi ehlangene ene-trackpoint, kodwa Akuhlangene ngalutho nakho ngemisebenzi yokuphakelwa kwamandla, ukuvikela noma ukuxoxisana kwe-PD esithinta lapha.
I-PocketPD ihlanganisa amandla kagesi amahle kanye nokulawula kwamanje nge-PPS, ukuvikela okuphelele, isixhumi esibonakalayo esicacile, ukuxhumeka okuvumelana nezimo, kanye nendlela yomthombo ovulekile ekhuthaza ukufunda, ukuguqulwa, nokuthuthukiswa. Ngeshaja/ikhebula ehambisanayo ye-USB-C PD 3.0+, Uphethe umthombo wasebhange ephaketheni lakho Ilungele ilabhorethri, amakilasi noma umsebenzi wasendle, ngokuthula kwengqondo kokukhiqiza ngokucophelela kanye nomphakathi ophushela iphrojekthi phambili.
