Izidingo zokugcina ukusebenza kwamasekethe ahlanganisiwe

1. Ukunemba okuphezulu kokugcinwa kokukhokhiswa ngokweqile

Uma ushaja ngokweqile, ukuze uvimbele ukwanda kokucindezela kwangaphakathi okubangelwa ukunyuka kwezinga lokushisa, isimo sokushaja kufanele simiswe. I-IC yesondlo izobona i-voltage yebhethri, futhi lapho kutholwa ukushajwa okweqile, ukushajwa ngokweqile kuthola amandla ama-MOSFEts, okuwenza avimbe futhi ayeke ukushaja. Njengamanje, kufanele sinake ukunemba okuphezulu kwe-voltage yokuthola ukushaja. Uma ushaja ibhethri, into esemqoka yomsebenzisi ukugcina ibhethri lishajwe ngokugcwele futhi acabangele izindaba zokuphepha. Ngakho-ke, lapho i-voltage evumelekile ifinyelelwa, isimo sokushaja kufanele sinqunywe. Ukuze kuhlanganiswe lezi zimo ezimbili, kudingeka izitholi ezinembayo. Ukunemba komtshina manje sekungama-25mV futhi kudinga ukuthuthukiswa.

2. Yehlisa ukusetshenziswa kwamandla kwe-IC

Njengoba isikhathi sihamba, i-voltage yebhethri ye-lithium ngemva kokushajwa izokwehla kancane kancane ize ibe ngaphansi kwenani elijwayelekile lokucaciswa, lapho ibhethri idinga ukushajwa khona. Uma ibhethri liqhubeka nokusetshenziswa ngaphandle kokushajwa, lingase lingasebenziseki ngenxa yokuchitheka ngokweqile. Ukuze uvimbele ukuchitheka ngokweqile kwebhethri, i-IC yokulungisa ihlola umthamo webhethri. Uma i-voltage yebhethri iphansi kunevoltheji etholwayo yokukhipha ukuchichima ngokweqile, xhuma i-MOSFET yamandla ohlangothini lokushajwa ukuze uyeke ukushajwa. Nokho, ibhethri ngokwalo lisenokukhishwa kwemvelo futhi ligcina ukusetshenziswa kwe-IC kumanje, ngakho gcina ukusetshenziswa kwe-IC okwamanje kube kuncane.

3. Ukugcinwa kwesekethe okudlulele/okufushane, ukutholwa kwamandla kagesi aphansi, ukunemba okuphezulu

Uma imbangela ye-short circuit ingaziwa, yeka ukukhishwa ngokushesha. Ukutholwa kwesikhathi eseqile kusebenzisa i-Rds(ON) yamandla e-MOSFET njengesithintelo esishintshayo ukuze kuqashwe ukwehla kwamandla kagesi. Uma i-voltage ingaphezulu kwe-voltage yokuthola i-overcurrent, misa ukukhipha. Ukuze kwenziwe amandla MOSFETRds() ukushaja okusebenzayo kwamanje kanye nohlelo lokusebenza lwamanje lokushaja, inani lokuvimba kufanele libe phansi ngangokunokwenzeka, i-impedance yamanje icishe ibe ngu-20m~30m, i-voltage yamanje ingaba phansi.

4. Ukumelana nokucindezela okuphezulu

Uma iphakethe lebhethri lixhunywe kushaja, amandla kagesi aphezulu avela ngokushesha, ngakho-ke i-IC yokulungisa idinga ukuhlangabezana nezidingo zokumelana nomthamo ophezulu.

5. Ukusetshenziswa kwamandla webhethri okuphansi

Ngesikhathi sokulungiswa, ukusetshenziswa kwamandla amile kwehla ngo-0.1 A.

6.0 V ibhethri

Phakathi nenqubo yokugcina, amanye amabhethri angase ehlele ku-0V ngenxa yezizathu zesikhathi eside noma ezingavamile, ngakho-ke izidingo ze-IC yokulungisa zingashajwa futhi ku-0V.

Gcina amathemba okuthuthukiswa kwamasekethe ahlanganisiwe

Njengoba kushiwo ngenhla, i-IC yokulungisa ikusasa izothuthukisa ukunemba kokutholwa kwamandla kagesi, inciphise ukusetshenziswa kwamandla kwe-IC yokulungisa, ithuthukise ukuvinjelwa kokusebenza kabi neminye imisebenzi. Itheminali yeshaja enamandla amakhulu okumelana nogesi nayo igxile ocwaningweni nasekuthuthukisweni. Mayelana nokupakisha, i-SOT23-6 kancane kancane ishintshela ekufakweni kwe-SON6, futhi kuzoba khona ukupakishwa kwe-CSP kanye nemikhiqizo ye-COB esikhathini esizayo ukuze kuhlangatshezwane nezidingo zamanje zokulula nokufinyeza.

Ngokusebenza, ukunakekela i-IC akumele kuhlanganise yonke imisebenzi. Ngokusho kwedatha yebhethri ye-lithium ehlukile, i-IC yokulungisa eyodwa ingaziswa, njengokulungiswa kokukhokhiswa ngokweqile noma ukugcinwa kokukhipha ngokweqile, okunganciphisa kakhulu izindleko nesikali.

Imojula yomsebenzi, yiqiniso, i-crystal eyodwa iyimigomo efanayo, njengabakhiqizi befoni ephathekayo ababhekene nayo manje isifunda esihlanganisiwe, isifunda sokushaja kanye nokuphathwa kwamandla IC, kanye nezinye izifunda ezizungezile kanye ne-logic ye-IC chip yakha i-chip ekabili, kodwa manje ngifuna gcina i-impedance yesifunda evulekile yamandla e-MOSFET, ikwindla nokunye ukuhlanganiswa kwe-IC, ngisho nangamakhono akhethekile ku-microcomputer ye-chip eyodwa, imali nayo iphezulu kakhulu, ukwesaba kwe-IBe. Ngakho-ke, kuthatha isikhathi ukuxazulula ukugcinwa kwekristalu eyodwa ye-IC.