Umdwebo wesekethe yokuphatha ukushaja olula wephakethe lebhethri le-lithium-ion

Njengoba kuboniswe emfanekisweni umjikelezo wokuphatha ukushaja kwebhethri ye-lithium.

Ikakhulukazi yakhiwe i-lithium battery charger chip TP4056 kanye namadivayisi angaphandle ahlukene.

I-TP4056 iyichip eyenzelwe ukushaja nokuphathwa kwebhethri ye-lithium yeseli elilodwa. Kudinga kuphela izingxenye ezimbalwa ezihlukene zangaphandle ukuze kwakhiwe futhi kuqedelwe. Ngakho-ke, kuvame ukwenziwa ngokuqondile kumamojula we-elekthronikhi adayiswa ngabasabalalisi abakhulu be-elekthronikhi, okusiza kakhulu ama-electronics ahlukahlukene Asetshenziswa abathanda.

Isingeniso se-TP4056

I-TP4056 iyibhethri le-lithium-ion yeseli elilodwa eliphelele elineshaja yomugqa yamanje yamanje/ezinzile. Iphakethe le-SOP8 elinosinki wokushisa phansi kanye nenani elincane lezingxenye zangaphandle lenza i-TP4056 ibe inketho efanelekile yokusetshenziswa okuphathekayo. I-TP4056 ingafaneleka ukunikezwa kwamandla e-USB nokusebenza kwamandla we-adaptha.

Ngenxa yokwakheka kwangaphakathi kwe-PMOSFET kanye nesekethe yokushaja ephikisana nokuhlehla, ayikho i-diode yokuvimba yangaphandle edingekayo. Ukusabela okushisayo kungalungisa okwamanje ukushaja ukuze kuvimbe izinga lokushisa le-chip ngaphansi kokusebenza kwamandla aphezulu noma izimo zokushisa eziphakeme ze-ambient. I-voltage yokushaja igxilwe ku-4.2V, futhi yamanje yokushaja ingasethwa ngaphandle nge-resistor. Lapho ukushaja kwamanje kwehlela ku-1/10 yenani elimisiwe ngemva kokufinyelela i-voltage yokugcina yokuntanta, i-TP4056 izomisa ngokugcwele umjikelezo wokushaja.

Uma i-voltage yokufaka (i-adaptha yokuxhumana noma ukunikezwa kwamandla e-USB) isusiwe, i-TP4056 ingena ngenkuthalo esimweni samanje esiphansi, inciphisa ukuvuza kwamanje kwebhethri ibe ngaphansi kuka-2uA. I-TP4056 ingaphinda ibekwe kumodi yokuvala shaqa uma kukhona ugesi, ukuze kwehliswe ukunikezwa kwamandla ku-55uA. Ezinye izici ze-TP4056 zihlanganisa ukutholwa kwezinga lokushisa kwebhethri, ukuvala i-under-voltage, ukushajwa kabusha okusebenzayo namaphinikhodi amabili wesimo se-LED ukukhombisa ukushaja nokuqedwa.