Ukadaulo Wochaja Wokhala ndi Kuchaja Kogwira Ntchito Kwambiri
Mu nthawi yomwe mafoni am'manja, ma laputopu, mapiritsi, ma watchwatch, komanso zida za IoT zakhala gawo la zochita zathu za tsiku ndi tsiku, kufunikira kwa kuchaja mwachangu komanso kogwiritsa ntchito mphamvu zochepa kukukulirakulira. Komabe, "mofulumira" kokha sikokwanira. Ma charger amakono amafunika kukhala ogwira ntchito bwino kwambiri: kuchepetsa mphamvu zomwe zimawonongeka ngati kutentha, kusunga thanzi la batri, kukhala otetezeka kugwiritsa ntchito, komanso kukhalabe otetezeka ku chilengedwe. Ukadaulo wochaja bwino kwambiri tsopano ulipo kudzera mu kuphatikiza kwa zatsopano mu zida za semiconductor, kapangidwe ka magetsi, miyezo yolumikizirana mwanzeru, komanso kasamalidwe ka kutentha kowonjezereka.
Kodi Ultra-Efficient Imatanthauza Chiyani?
Mwachidule, mphamvu ya charger ndi chiŵerengero cha mphamvu yochokera pakhoma kupita ku mphamvu yomwe imaperekedwa ku batri la chipangizocho. Mphamvu zambiri zikatayika ngati kutentha, mphamvu ya charger imachepa. Cholinga cha charger chogwira ntchito bwino kwambiri:
1. Kusinthasintha kwakukulu (kutentha kochepa).
2. Kuwongolera kuyitanitsa kosinthika malinga ndi momwe batire ilili komanso kutentha kwake.
3. Mphamvu yokhazikika komanso yolimba popanda kusinthasintha koopsa.
4. Kukula kocheperako komanso magwiridwe antchito apamwamba.
5. Kugwirizana kokhazikika kuti muchepetse zinyalala zamagetsi.
Mwa kuyankhula kwina, kuyatsa bwino kwambiri ndi kuphatikiza kwa kugwiritsa ntchito mphamvu moyenera, liwiro, chitetezo, ndi kukhazikika.
Kusintha kwa Charger: Kuchokera ku Linear kupita ku Switching
Ma charger akale nthawi zambiri ankagwiritsa ntchito ma linear regulators osavuta, koma anali owononga ndalama chifukwa magetsi ochulukirapo ankatha ngati kutentha. Pamene mphamvu zinkawonjezeka, makampaniwa anayamba kugwiritsa ntchito switching power supplies (SMPS): zomangamanga zomwe zimayatsa ndi kuzimitsa ma transistors mwachangu, zomwe zimathandiza kuti mphamvu zizitha kutumizidwa kudzera mu inductors/transformers bwino kwambiri. Kuchokera pamenepo, ukadaulo unasintha kukhala ma topologies apamwamba kwambiri monga:
– Kubwerera m'mbuyo (kofala kwambiri pa ma adapter ang'onoang'ono).
- Forward, LLC resonant, ndi quasi-resonant (yogwira ntchito bwino pa mphamvu yayikulu).
- Kukonzanso kogwirizana, kusintha ma diode ndi ma MOSFET kuti achepetse kutayika kwa mphamvu.
Ma topology ogwirizana monga LLC amathandiza kuchepetsa kutayika kwa kusinthana ndikuwongolera magwiridwe antchito, makamaka m'ma charger amphamvu kwambiri monga ma laputopu ndi ma charger okhala ndi ma port ambiri.
Udindo Waukulu wa GaN ndi SiC: Ma Semiconductors a Next Generation
Chimodzi mwa zinthu zazikulu kwambiri padziko lonse lapansi zoyatsira ma charger chabwera chifukwa chogwiritsa ntchito zipangizo zatsopano za semiconductor, makamaka Gallium Nitride (GaN) ndipo, m'magwiritsidwe ena, Silicon Carbide (SiC). Poyerekeza ndi ma transistors achikhalidwe okhala ndi silicon, GaN ili ndi zabwino izi:
- Kusintha mwachangu, kotero zigawo zosagwira ntchito (zosinthira, zotulutsira, ma capacitor) zitha kuchepetsedwa.
- Kutaya mphamvu kumachepetsa, kotero kutentha kumachepa.
– Mphamvu yamagetsi imakhala yochuluka kwambiri, zomwe zimathandiza kuti chojambulira chikhale chocheperako koma champhamvube.
Zotsatira zake ndi chizolowezi chofuna ma charger ang'onoang'ono a GaN omwe amapereka mphamvu ya 65W, 100W, komanso 140W. Kugwira ntchito bwino kumeneku sikuti kumangopangitsa kuti kuyatsa kukhale kotsika mtengo komanso kumathandiza kuti chipangizocho ndi adaputala zikhale pamalo otentha bwino.
Miyezo Yoyatsira Mwanzeru: Kutumiza Mphamvu ya USB ndi PPS
Kuchita bwino sikungokhudza zigawo zokha, komanso kukhudza mphamvu ya chojambulira ndi chipangizocho kuti chigwirizane ndi magetsi ndi magetsi abwino kwambiri. Apa ndi pomwe USB Power Delivery (USB-PD) imagwira ntchito. USB-PD imalola zipangizo kupempha mawonekedwe abwino amagetsi, monga 5V, 9V, 15V, kapena 20V, zomwe zimathandiza kuti magetsi asinthidwe kuti achepetse kutayika kwa mphamvu mu chingwe.
Chotsogola kwambiri ndi PPS (Programmable Power Supply)—chinthu chomwe chili mu USB-PD chomwe chimalola kusintha kwa ma voltage pang'ono (masitepe ang'onoang'ono). Ndi PPS, chojambulira chimatha kupereka ma voltage pafupi ndi zosowa zenizeni za batri, zomwe zimapangitsa kuti kusintha kwabwino kwambiri mkati mwa foni ndikuchepetsa kutentha. Maukadaulo ambiri amakono "ochaja mwachangu" amagwiritsa ntchito lingaliro ili, ponseponse kuti azitha kuchaja mwachangu komanso kuti kutentha kusamayende bwino.
Kusamalira Kutentha: Chinsinsi cha Kuchita Bwino Kwambiri
Pafupifupi mphamvu zonse zomwe zimatayika mu charger zimakhala kutentha. Chifukwa chake, charger yogwira ntchito bwino kwambiri iyenera kukhala ndi kapangidwe kabwino ka kutentha, kuphatikizapo:
- Kapangidwe kabwino ka PCB kuti muchepetse kukana ndi malo otentha.
- Chophimba chomwe chimathandiza kuyeretsa kutentha.
- Zosefera kutentha ndi chitetezo zomwe zimayang'anira zigawo zazikulu.
- Njira yochepetsera mphamvu (yochepetsa mphamvu) pamene kutentha kuli kokwera kwambiri.
Liwiro la kuchaja nthawi zambiri silimachepetsedwa ndi mphamvu yotulutsa, koma ndi luso la makinawo lotha kusamalira kutentha. Pamene kutentha kukukwera, batire nthawi zambiri imachepetsa mphamvu yolowera kuti ikhale yotetezeka. Chaja yogwira ntchito bwino imathandiza kupewa kutentha kwambiri poyamba, zomwe zimapangitsa kuti kuchaja mwachangu kukhale kwa nthawi yayitali.
Kuchaja Moyenera Madoko Ambiri
Ma charger amakono nthawi zambiri amakhala ndi ma doko angapo (USB-C ndi USB-A) kuti azitha kuyitanitsa zida zingapo nthawi imodzi. Vuto ndi kugawa mphamvu mwanzeru popanda kuchepetsa kwambiri magwiridwe antchito. Ma charger ogwira ntchito bwino kwambiri amagwiritsa ntchito:
- Kugawa mphamvu zamagetsi, kuyika patsogolo zida zina.
- Kuwongolera katundu kuti magetsi asagwere bwino pamene chipangizocho chatsekedwa/kulumikizidwa.
- Kuzindikira chingwe ndi mbiri kuti mphamvu isagwiritsidwe ntchito pazida zosathandizidwa.
Kuchita bwino pazochitika za madoko ambiri sikuti kumangokhudza manambala a labotale okha, komanso kukhazikika kwa zotulutsa panthawi yogwiritsa ntchito zenizeni.
Ma Algorithm a Batri ndi Kuchaja: CC-CV kupita ku Kuchaja Kwapang'onopang'ono
Mu zipangizo, mabatire a lithiamu nthawi zambiri amachajidwa pogwiritsa ntchito njira ya CC-CV (Constant Current – Constant Voltage): poyamba ndi mphamvu yamagetsi yapamwamba, kenako mphamvu ikafika podzaza, kusintha kukhala mphamvu yamagetsi yosasintha ndikuchepetsa mphamvu yamagetsi. Kuchaja kogwira ntchito bwino kwambiri kumagwiritsa ntchito njira zina monga:
- Kuchaja sitepe kuti kutentha ndi liwiro zigwirizane.
- Zoletsa kutentha zomwe zimatsatira molondola kwambiri.
- Kukonza bwino kwa batri kuyambira 20–80% kuti batri likhale ndi moyo wautali.
Mafoni ena amagwiritsanso ntchito mabatire a ma cell awiri kapena ma charger pump kuti azitha kutulutsa mphamvu zambiri komanso kutentha kochepa. Kwenikweni, kugwira ntchito bwino kumachitika pamene charger ndi chipangizocho zikugwira ntchito ngati makina amodzi.
Mphamvu Yoyimirira ndi Kugwira Ntchito Bwino Mukasachaja
Chojambulira chomwe chimakhalabe cholumikizidwa mu chotulutsira mawaya ngakhale sichikugwiritsidwa ntchito chimadya mphamvu zochepa (mphamvu yoyimirira). Malamulo apadziko lonse lapansi amafuna kuti ma adapter azikhala ndi mphamvu zochepa zoyimirira. Mu ma charger ogwira ntchito bwino kwambiri, ma control circuitry amakono amatha kulowa mu njira yosungira ndalama, kuchepetsa kutuluka kwa madzi ndikukhala okonzeka kuzindikira chipangizo chikalumikizidwa.
Ngakhale zingawoneke ngati zazing'ono, kuchepetsa mphamvu yoyimirira kumakhudza kwambiri mabanja ndi maofesi mamiliyoni ambiri.
Chitetezo: Gawo la Kuchita Bwino
Kugwiritsa ntchito bwino kwambiri sikuyenera kuwononga chitetezo. Ma charger ogwira ntchito bwino kwambiri nthawi zambiri amakhala ndi zigawo zoteteza monga:
- Chitetezo cha magetsi ochulukirapo, magetsi ochulukirapo, komanso mafupifupi
- Chitetezo cha kutentha kwa adaputala ndi kutentha kwa cholumikizira
- Kuteteza magetsi komwe kumakwaniritsa miyezo (monga IEC)
- Chitetezo ku kukwera kwa magetsi
Zipangizo zotetezeka zimagwira ntchito bwino, ndipo kukhazikika kumathandiza kuti zinthu ziziyenda bwino mwa kuchepetsa mavuto omwe amayambitsa kutentha kapena kutseka magetsi mwadzidzidzi.
Zotsatira Zachilengedwe ndi Tsogolo la Ochaja
Ukadaulo wochaja bwino kwambiri umagwirizananso ndi zolinga zokhazikika. Kugwiritsa ntchito bwino kwambiri kumatanthauza kuti magetsi sagwiritsidwa ntchito molakwika. Kukhazikitsa malamulo monga USB-C ndi USB-PD kumathandiza kuchepetsa kufunikira kwa ma charger angapo, motero kuchepetsa zinyalala zamagetsi.
Tikayang'ana patsogolo, tiwona zinthu zingapo zofunika:
1. GaN ikutsika mtengo komanso yofala kwambiri, zomwe zimapangitsa kuti ma charger ang'onoang'ono komanso amphamvu kwambiri akhale muyezo.
2. USB-PD yokhala ndi ma profile amphamvu kwambiri komanso kukonza bwino.
3. Kuphatikiza nzeru: chojambulira chomwe chimazindikira momwe chimagwiritsidwira ntchito ndikukonza bwino nthawi yochajira batri.
4. Kuchaja opanda zingwe kogwira mtima, kokhala ndi maginito abwino komanso mphamvu yosinthira.
5. Chilengedwe cha mphamvu zapakhomo: ma adapter olumikizidwa ku kasamalidwe ka mphamvu zanzeru kuti azichajidwa pamene mitengo yamagetsi ili yotsika kapena pamene pali mphamvu yochulukirapo kuchokera ku ma solar panels.
Kutseka
Ukadaulo wochapira bwino kwambiri sumangokhudza "kuthamanga." Ndi kusintha kwa zinthu zonse: kuyambira pa zipangizo zamagetsi monga GaN, ma topology amakono osinthira mphamvu, miyezo yolankhulirana mwanzeru monga USB-PD ndi PPS, mpaka kuyang'anira kutentha kwambiri komanso chitetezo chachitetezo. Zotsatira zake ndi njira yosavuta yochapira, zida zokhalitsa, kugwiritsa ntchito mphamvu zochepa, komanso kuwononga chilengedwe. Pamene liwiro la zatsopano likupitirira kufulumira, ma charger amtsogolo adzakhala ochepa, anzeru, komanso ogwira ntchito bwino - zomwe zimapangitsa kuti kuchapira kukhale gawo losavuta la moyo wathu wa digito, osati vuto.
