Izixazululo zokushaja nezisebenza kahle kakhulu zikhokhiswa ngokungenantambo

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Zentral elektriko eramangarrien hornitzailea

Isingeniso Ukunika amandla izinhlelo zokusebenza eziningi ezahlukene ezivela ezimbonini eziningi. Kuzinhlelo zokusebenza eziningi ezinjalo, kunzima ukusebenzisa noma ukusebenzisa isixhumi sokushaja. Isibonelo, eminye imikhiqizo kufanele ivale i-casing yangaphandle ukuze ivikele izingxenye ze-elekthronikhi ezibucayi endaweni enokhahlo, noma ivumele ukuhlanzwa okulungile noma ukubulala amagciwane.

Eminye imikhiqizo ingase ibe mincane kakhulu, ayikwazi ukuthwala isixhumi. Ngaphezu kwalokho, uma uhlelo lokusebenza olunamandla ebhethri luhlanganisa izingxenye ezinyakazayo noma ezijikelezayo, sicela ukhohlwe ukukushaja lokhu. Ukushaja okungenantambo kubalulekile kulezi zinhlelo zokusebenza nakwezinye, kuthuthukisa ukwethembeka nokuqina.

Isistimu yamandla angenawaya iwukubuka konke, njengoba kukhonjisiwe kuMfanekiso 1, isistimu yamandla angenawaya inezingxenye ezimbili, okuyisekethi yokudlulisela kanye nesekhethi eyamukelayo, kukhona igebe phakathi. Isifunda sokudlulisa sihlanganisa ikhoyili yokudlulisa, isifunda esamukelayo sihlanganisa ikhoyili eyamukelayo. Isekhethi yokuthumela izungeza inkambu kazibuthe enemvamisa ephezulu ezungeze ikhoyili yokudlulisela.

Indawo kazibuthe ihlanganiswe ikhoyili eyamukelayo bese iguqulwa ibe amandla kagesi, angashajwa ebhethrini noma ekuphakeleni kwamandla kwamanye amasekhethi. Umfanekiso 1: Uhlolojikelele Lwesistimu Yeshaja Yebhethri Yomsakazo Lapho uklama isistimu yokushaja yamandla angenantambo, amapharamitha angukhiye angamandla okushaja wangempela emandleni amasha kumabhethri. Ubukhulu bamandla atholiwe buncike ezintweni eziningi, okuhlanganisa ubukhulu bamandla okudlulisa, ibanga, kanye nokuhlelwa kwekhoyili yokudlulisela (okubizwa nangokuthi ikhoyili), kanye nezingxenye zokudlulisa nokwamukela.

Umgomo obalulekile wanoma yimuphi umklamo wokuphakelwa kwamandla okungenazintambo ukuqinisekisa ukuthi amandla adingekayo anikezwa esimweni esibi kakhulu sokudluliswa kwamandla. Kodwa-ke, kubalulekile futhi ukuvimbela ukushisa nokweqile kagesi kowamukelayo ngaphansi kwezimo ezinhle kakhulu. Lokhu kubaluleke kakhulu uma izidingo zamandla okukhiphayo ziphansi kakhulu, isibonelo, uma ibhethri selishajwe ngokugcwele noma seliseduze nokushajwa okugcwele, lokhu kubaluleke kakhulu.

Ezimweni ezinjalo, amandla atholakalayo avela ohlelweni olungenantambo aphezulu, kodwa amandla adingekayo aphansi kakhulu. Lawa mandla engeziwe ngokuvamile aphumela ku-voltage ogeleza kakhulu, noma asebenzisa la mandla engeziwe ukuze awenze ashise. Uma amandla adingekayo kumamukeli ephansi, kunezindlela ezimbalwa zokubhekana nezinkinga zamandla amaningi.

I-rectifier voltage ingasetshenziswa ngamandla e-Zener diode noma i-transient voltage suppressor clamp. Nokho, lesi sixazululo ngokuvamile sikhulu, futhi ukushisa kubonakala kukhulu kakhulu. Cabanga ukuthi akukho mpendulo evela kumamukeli, khona-ke amandla amakhulu we-transmitter angancishiswa, kodwa lokhu noma kuzokhawulela amandla okwamukela atholakalayo, noma kufinyeze ibanga lokudlulisela.

Ungakwazi futhi ukuthumela ulwazi lwamandla owamukelayo kumthumeli ukuze ulungise amandla okudlulisela ngesikhathi sangempela. Izinga lamandla angenantambo njenge-wireless charging alliance (WirelessPowerConsortium) Izinga le-QI lisebenzisa le ndlela. Kodwa-ke, ungasebenzisa futhi isixazululo esihlangene nesisebenzayo ukuxazulula izinkinga ezinjalo ngaphandle kokuvala izindlela eziyinkimbinkimbi zokuxhumana zedijithali.

Ukuze ulawule ngempumelelo ukudluliswa kwamandla ukusuka kumthumeli ukuya kumamukeli kuzo zonke izimo, isamukeli samandla angenantambo se-LTC4120 sihlanganisa ubuchwepheshe obunelungelo lobunikazi be-PowerbyProxi, futhi i-PowerByProxi inguzakwethu we-Lineart. I-PowerByProxi ithole ubuchwepheshe obunelungelo lobunikazi be-dynamic coordination control (DHC) ukuze kuzuzwe ukushaja okungathinteki kahle, futhi akukho ukushisa noma ukukhipha isisu ngogesi kumamukeli. Ngalobu buchwepheshe, amandla afinyelela ku-2W angadluliselwa ebangeni elingu-1.

2 cm. Ngokulungisa imvamisa yokukhala komamukeli kusukela kusimo "Sokushuna", i-DHC iqinisekisa ukuthi amandla adingekayo anganikezwa ezimeni ezimbi kakhulu, futhi ungakhathazeki ngokuthi kunenkinga ekulayishweni okungcono kakhulu. Lokhu kuvumela uhlelo lokushaja okungenantambo olusekelwe ku-LTC4120 ukuthi ludlulise amandla esimeni sebanga elide kanye nokungahambi kahle kwamakhoyili.

Ngaphezu kwalokho, uhlelo olusekelwe ku-LTC4120 kuphela olulawulwa yi-LTC 4120, njengokuba khona, kukhona ukudluliswa kwamandla okuphazamisa okungenzeka uma kukhona. Uyini umphumela wokusebenza wesistimu esekelwe kusistimu? Umfanekiso 2 ubonisa ibhethri elamukelwe ngesamukeli samandla angenawaya i-LTC4120 nebanga phakathi kwekhoyili yokudlulisela kanye nekhoyili eyamukelayo kanye nokuqondanisa maphakathi nendawo nendawo, ngamandla okushaja amukela amandla angenantambo we-LTC4120. Uma ibanga lingu-10mm, amandla okushaja angu-2W angatholakala, futhi ukungahambi kahle phakathi kwamakhoyili kungaba kukhulu ngaphandle kokwenza amandla akhona ehle.

Nakuba kunama-transmitter amaningi ahlukene angenantambo atholakalayo, idatha eboniswe kuMfanekiso 2 isuka kusidlulisi esiyisisekelo se-DC-AC. Lesi sidlulisi esiyisisekelo siyidizayini yesithenjwa yomthombo ovulekile. Ukuze uthole ulwazi olwengeziwe ngalesi sidlulisi sohlobo lwe-push-pull transmitter kagesi, ungangena kuwebhusayithi ka-Linellet futhi ubuke imihlahlandlela yohlelo lokusebenza ehlobene.

Umfanekiso 2: Izinto ezimbalwa okufanele zicatshangelwe lapho kuthunyelwa ibanga - ukuthola ukuhlaziywa kwamandla Khetha isidlulisi. Isidlulisi singamandla okulondoloza (lapho umamukeli singekho)? Ingabe isidlulisi sihlukanisa isamukeli esisebenzayo kanye nesakhiwo sangaphandle sensimbi esingahlobene? Ingabe i-peripheral circuit iya ku-EMI? I-Basic Transmitter iyisisombululo esilula, sentengo ephansi. Njengoba kusetshenziswa ukuhlunga kwe-passive resonant, i-spectrum ye-EMI ilawulwa kahle ku-transmitter base frequency (cishe 130kHz).

Kodwa-ke, isidlulisi sidlulisa amandla aphelele kungakhathaliseki ukuthi i-LTC4120 ikhona, ngakho-ke amandla okulondoloza aphakeme kakhulu. I-transmitter nayo ayihlukanisi i-LTC4120 nezinto zangaphandle zensimbi, ngakho-ke izinto zensimbi ezingahlobene zingashiswa ama-eddy currents. Ku-PowerByProxi, ungathenga ama-transmitter amabili alungele uku-cemented: i-Proxi-Point ne-Proxi-2D.

Ibanga lokudlulisela lalaba bathumeli kanye nokusebenza okufanayo kokubekezelela okunye kucishe kufane nesidlulisi esiyisisekelo. Kodwa-ke, lawa ma-transmitters athuthuke kakhulu angathola ukuthi ngabe isamukeli esisebenzayo esisuselwa ku-LTC4120 sikhona yini. Lesi sici sinika amandla ama-transmitters amabili ukuthi anciphise amandla ayisipele lapho umamukeli singekho, futhi uma kungekho lutho olungahlobene nensimbi yangaphandle, lezi zithumeli ziyanqanyulwa.

Ngenxa ye-topology yohlobo lwebhake olusebenza kahle kakhulu kanye nobuchwepheshe be-DHC, ukusebenza kahle okuphelele kohlelo kucishe kube ngu-50% kuya ku-55%. Leli nani elisebenza kahle lingabalwa kusetshenziswa amandla okushaja ibhethri ahlukaniswe amandla okufaka e-DC kusidlulisi. Ukusebenza kahle sekukonke kanye nokuhlangana nomthwalo kunobudlelwano obukhulu.

Uma kushajwa ibhethri leseli elilodwa lishajwa ku-400 mA, izingxenye ezisuselwe ku-LTC 4120 zigcinwa ngaphakathi kwezinga lokushisa le-ambient elingu-10oC. Umamukeli osuselwe ku-LTC4120 uboniswa kuMfanekiso 3. Umfanekiso 3: I-LTC4120 I-Receiver Demonstration Circuit Board Izingxenye Olunye Uhlelo Lokulungisa I-LTC4120 Isistimu yokushaja okungenantambo esekelwe esikhaleni esihlaba umxhwele ingashaja ibhethri ku-400mA.

Ngokusekelwe kubhethri le-lithium elishajekayo ezinhlelweni eziningi ezibanjwa ngesandla, i-1S (igama elingu-3.7V) kanye ne-2S (igama elithi 7.4V) iphakethe lebhethri le-lithium-ion livame kakhulu.

Ukunwetshwa komjikelezo wempilo kanye nokuthuthukiswa komsebenzi wokuphepha nakho kudala indawo enkulu yemakethe yebhethri ye-lithium iron phosphate (Lifepo4). Ukwengeza, lolu hlobo lwephakethe lebhethri lunezinhlobonhlobo eziningi zokushaja okuqondiwe ngoba amakhasimende afuna ukwenza ukuhweba okuhle phakathi komthamo wokuqala webhethri, umjikelezo wempilo, kanye nokushintsha kwamandla okugcina kwesikhathi. Uma i-LTC4120 ingenawo amasekethe engeziwe, kungenzeka ukushaja ibhethri ye-lithium ion eyodwa nambili kanye nebhethri ye-ion ye-phosphate eyodwa, amabili kanye nama-3, ukuze kuhlangatshezwane nesidingo sama-voltage amaningi wokushaja okuqondiwe.

Amandla wokushaja angasethwa ku-50 mA kuya ku-400 mA, kuyilapho i-voltage yokushaja ingasethwa ku-3.5V kuya ku-11V. Ngokungeziwe ku-algorithm yokushaja kagesi engaguquki eyakhelwe ngaphakathi, i-LTC4120 futhi ihlinzeka ngemisebenzi ehlukahlukene yokuphepha kwebhethri.

Susa ukuphela kokuphepha komshini wokunyathelisa. Okokufaka kwe-NTC kunikezela ngokuqapha izinga lokushisa kwebhethri, futhi imise ngokuzenzakalelayo ukushaja lapho izimo zokushisa zingaphephile. Izikhonkwane ezimbili zesimo sokushaja zihlinzeka ngomjikelezo wokushaja nolwazi lwesimo sephutha.

Isiphetho Ezinhlotsheni eziningi zezinhlelo zokusebenza, ukushaja okungenantambo kubalulekile, kuthuthukisa ukwethembeka nokuqina. Kubalulekile ukubheka ukuthi mangakanani amandla namandla okumele adluliselwe ezindaweni eziningi, nokuthi mangakanani izinga. Nquma ukuthi uzobhekana kanjani namandla amakhulu omthwalo futhi okubi kakhulu izimo zokuhlangana phakathi kwama-transmitters nabamukeli ngokuvamile kulula kakhulu.

Ukuphatha amandla engeziwe atholakalayo ekulayishweni okulula noma ukungalayishi kanye nokuhlanganisa okuphezulu kungase kube inselele. Ukuze usize ukuphendula le nselele, i-Lao Lel ithuthukise i-LTC4120, ehlinzeka ngakho konke okudingayo ukuze ukhiqize amashaja ebhethri omsakazo ahlangene futhi asebenza kahle kakhulu. Ubuchwepheshe bayo be-DHC buvumela izikhala zokudlulisa ezibanzi kakhulu, ezingaphenduli kakhulu kukhoyili yokudlulisela ikhoyili eyamukelayo.

I-LTC4120 iyingxenye ebalulekile yesistimu yokushaja okungeyona yothintana naye. .