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    thuthukisa isifunda

    Isikhathi sokuthumela: May-08-2023

    Kokubili i-buck circuit kanye ne-boost circuit yiziyingi ezibalulekile ekwakhiweni kwehadiwe, ikakhulukazi kohlakaniphileAma-ONUfuthiOLTamadivaysi. Umsebenzi we-VOICE kuI-ONUidizayini isebenzisa i-boost circuit ukuze ikhulise ngokuqondile amandla kagesi futhi inikeze amandla kumafoni angaphandle. Indlela engcono kakhulu yokuqonda i-boost circuit ukuqonda ngokugcwele i-voltage kanye namandla engxenye ngayinye yesekethe, Ukuhlangabezana nezinkinga ezithile kungakhomba ngokucacile iphuzu lenkinga. Isibonelo, kwenzekani lapho i-inductance inyuka? Kwenzekani lapho i-capacitance ikhula? Uyini umthelela wemvamisa yokusebenza? Okulandelayo, inkampani yethu izokuchazela.
    Okokuqala, ake sikhulume ngomgomo oyisisekelo wokusebenza wesekethe ye-BOOST: Emfanekisweni ongezansi, i-MOS transistorshintsha. Inqobo nje uma ijubane lishesha ngokwanele (imvamisa yokushintsha iphezulu ngokwanele), isikhathi sokuvula nesokuvala (isikhathi sokushaja nokukhipha) silawulwa kahle, futhi kuhlanganiswe ne-capacitor yesihlungi okukhiphayo, i-Vo eqinile ingatholakala (izwi voltage yethu ehlakaniphileI-ONUngokuvamile ingu-48V), okuyi-voltage ephumayo.

    wps_doc_1

    Lapho i-shintshaivuliwe, i-inductor L imisiwe, i-diode iyanqanyulwa, futhi i-Vi ishaja i-inductor L. I-voltage emaphethelweni womabili we-inductor ithi Vi (imvamisa ingu-12VI-ONUukunikezwa kwamandla kagesi). Lapho i-shintshaiba i-non conductive, ngoba i-inductor L isivele ikhokhisiwe futhi kukhona okwamanje egeleza kuyo, okwamanje emikhawulweni yomibili ye-inductor ayikwazi ukushintsha ngokuzumayo. Ngakho-ke, i-voltage izodonswa ukwenza i-diode ekuziphatheni okufanele. I-voltage ephumayo i-Vo ihlala njalo, futhi ukwehla kwe-voltage ye-diode conduction yi-Vd, ngakho-ke i-voltage ekugcineni kwe-inductor yi-Vo + Vd, futhi i-voltage ekugcineni kwesobunxele ye-inductor ifaka amandla Vi. Lesi isifunda sokuthuthukisa, ngakho-ke i-Vo+Vd>Vi, i-inductance iyakhishwa ngalesi sikhathi, ihlinzeka amandla kumthwalo, futhi ishaja i-capacitor yesihlungi esiphumayo.
    Lapho i-shintshaiba i-non conductive, ngoba i-inductor L isivele ikhokhisiwe futhi kukhona okwamanje egeleza kuyo, okwamanje emikhawulweni yomibili ye-inductor ayikwazi ukushintsha ngokuzumayo. Ngakho-ke, i-voltage izodonswa ukwenza i-diode ekuziphatheni okufanele.
    I-voltage ephumayo i-Vo ihlala njalo, futhi ukwehla kwe-voltage ye-diode conduction yi-Vd, ngakho-ke i-voltage ekugcineni kwe-inductor yi-Vo + Vd, futhi i-voltage ekugcineni kwesobunxele ye-inductor ifaka amandla Vi. Lesi isifunda sokuthuthukisa, ngakho-ke i-Vo+Vd>Vi, i-inductance iyakhishwa ngalesi sikhathi, ihlinzeka amandla kumthwalo, futhi ishaja i-capacitor yesihlungi esiphumayo.
    Okungenhla ukubuka okufushane kwe-BOOST Circuit, okungasebenza njengereferensi yawo wonke umuntu. Inkampani yethu ineqembu eliqinile lezobuchwepheshe futhi ingahlinzeka ngezinsizakalo zobuchwepheshe kumakhasimende. Njengamanje, inkampani yethu inemikhiqizo ehlukahlukene: ehlakaniphilewena, imojuli ye-optical yokuxhumana, i-optical fibre module, i-sfp optical module,oltimishini, Ethernetshintshanezinye izinto zenethiwekhi. Uma udinga, ungaba nokuqonda okujulile.



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