Uyini umehluko phakathi kokumelana kwangaphakathi nokuvikelwa?

Ukuze uqonde ama-nuances wokumelana kwangaphakathi nokuvikelwa, kubalulekile ukuqaphela ukuthi ukungcola kuphetha ku-AC (ukushintshana kwamanje), ngenkathi ukumelana kwangaphakathi kuhlotshaniswa ne-DC (eqondile yamanje). Naphezu kwezimo zabo ezahlukahlukene, ukubalwa kwazo kulandela ifomula efanayo, r = v / i, lapho r ukumelana kwangaphakathi noma ukubulawa, v kungubani voltage, futhi okwamanje.

Ukumelana kwangaphakathi: Isithiyo sokugeleza kwe-elektroni

Imiphumela yokumelana yangaphakathi evela ekushayweni kwama-elektroni ane-conductor ionic lattice, iguqula amandla kagesi abe ukushisa. Cabanga ukumelana kwangaphakathi njengohlobo lokuxabana okuvimba ukunyakaza kwe-elektroni. Ezimweni lapho kuhlangana khona ukugeleza kwamanje ngento emelana nalokho, kwakha i-voltage Drop. Lokhu kwehla kuhlala esigabeni nalawo mamuva, okubonisa ubudlelwane obuqondile phakathi kokugeleza kwamanje kanye nokumelana kwangaphakathi okuhlangane nakho.

Ukuvimbela: Umqondo obanzi uhlanganisa ukumelana kwangaphakathi

Ukuphazamiseka kufanekisela igama eliphelele elihlanganisa zonke izinhlobo zokuphikisana nokugeleza kwe-elektroni. Lokhu kufaka hhayi ukumelana kwangaphakathi, kepha futhi kuphendula. Kungumqondo onobubi etholakala kuyo yonke imibuthano nezakhi.

Kubalulekile ukuhlukanisa phakathi kokuphendula nokungaphandle. Ukuphendula ngokuqondile kubhekisele ekuphikisweni okunikezwayo ku-AC kwamanje yi-Inductor kanye nama-capacitors, izinto ezihlukahluka ezinhlotsheni zebhethri ezihlukile. Lokhu okuguquguqukayo kubonakala emigabeni ehlukile kanye namagugu kagesi abonisa uhlobo lwebhethri ngalinye.

Ukuze sinciphise ukungavikeleki, singaphendukela kwimodeli yeRandle. Le modeli, eboniswe kuMdwebo 1, ihlanganisa u-R1, R2, eceleni kwe-C. Ngokwengeziwe, c isho i-capacitor enobumba oluphindwe kabili. Ngokuphawulekile, imodeli yeRandles ivame ukungafaki ukuphendula okuzayo, njengomthelela wayo ekusebenzeni kwebhethri, ikakhulukazi emafrikhwensi aphansi, kuncane.

Umdwebo 1: Imodeli yeRandles yebhethri le-acid eliholayo

Ukuqhathaniswa kokumelana kwangaphakathi nokungaphakathi

Ukucacisa, ukuqhathanisa okuningiliziwe kokumelana kwangaphakathi nokuvikelwa kuchazwe ngezansi.

Isici sempahla kagesi	Ukumelana Kwangaphakathi (R)	I-Imperance (z)
Umjikelezo wesicelo	Kusetshenziswe ikakhulukazi kumasekethe asebenza ngokuqondile (DC) eqondile.	Isetshenziswe kakhulu kumasekethe enzelwe ukushintshana kwamanje (AC).
Ubukhona besekethe	Ibonakalayo kuzo zombili izindlela zokushintshana kwamanje (ac) kanye nemibuthano yamanje (DC) eqondile.	I-Explusive to Ukushintshana kwamasekethe wamanje (ac), hhayi okwamanje ku-DC.
Ukudabuka	Isuka ezintweni ezivimba ukuhamba kwamanje kagesi.	Kuvela ekuhlanganiseni kwezinto ezimelana futhi usabele ku-Electric yamanje.
Isisho Sezinombolo	Kuvezwe kusetshenziswa izinombolo zangempela ezichazayo, ngokwesibonelo, ama-ahms angama-5.3.	Kuvezwe ngokusebenzisa izinombolo zangempela nezakhi ezibonakalayo, eziboniswe nge-'R + ik'.
Imvamisa ukuthembela	Inani layo lihlala lihlala lingakhathalekile ukuthi imvamisa ye-DC yamanje.	Inani layo liyashintshashintsha ngokuvama okuguqukayo kwe-AC yamanje.
Isigaba Isici	Ayikhombisi noma yisiphi izici ze-anglesi noma ze-caplitution.	Kubonakaliswa yi-angle yesigaba esichazayo nobukhulu.
Ukuziphatha enkampanini ye-electromagnetic	Kukhombisa kuphela ukuhlakazwa kwamandla lapho kuvezwa inkambu ye-electromagnetic.	Kukhombisa ukuhlukaniswa kwamandla kanye namandla okugcina amandla enkambu kagesi ka-electromagnetic.

Ukunemba ekulinganiseni kwebhethri lokumelana kwebhethri

Njengomhlinzeki wezixazululo ochwepheshe ngokuqapha kanye nokuphatha amabhethri e-Backup, Ukugcizelela kwe-Dfun ekulinganiseni kokumelana kwangaphakathi kwebhethri nezinqubo ezisunguliwe zezimboni, ugqozi lokudweba kusuka kumadivayisi amukelwe kabanzi anjenge-fluke noma hiki. Izindlela ezinamandla azenza amadivaysi, ezaziwa ngokunemba kwazo kanye nokwamukelwa kwamakhasimende agcwele, sinamathela kumazinga anjenge-IEE1491-2012 ne-IEE1188.

Iee1491-2012 isiqondisa ekuqondeni ukumelana kwangaphakathi njengepharamitha enamandla, idinga ukulandelela okuqhubekayo ekuphambukeni okuvela kusisekelo. Okwamanje, i-IEE1188 Standard isekela umkhawulo wesenzo, ukululeka ukuthi ukumelana kwangaphakathi kudlula i-20% yomugqa ojwayelekile, ibhethri kufanele libhekwe ngokubuyiselwa esikhundleni noma ngaphansi komjikelezo ojulile.

Ukusuka kulezi zimiso, indlela yethu yokulinganisa ukumelana kwangaphakathi ifaka phakathi kwebhethri kwimvamisa elungisiwe futhi yamanje, elandelwa yi-voltage Sampling. Ukucutshungulwa okulandelayo, okubandakanya ukulungiswa kabusha nokuhlunga ngokusebenzisa umjikelezo we-amplifier osebenzayo, kuveza isilinganiso esifanele sokumelana kwangaphakathi. Ngokumangazayo, le ndlela imvamisa iphetha ngaphakathi kwama-milliseconds ayi-100, iqhosha uhla oluhlekisayo lwe-1% kuya ku-2%.

Ekuphetheni, ukunemba ekulinganiseni ukumelana kwangaphakathi kuqinisekisa ukuqapha okusebenzayo kwamabhethri, kufaka isandla ekufeni kwawo. Lo mhlahlandlela uhlose ukusiza labo abangase bakuthole kuyinselele ukuhlukanisa phakathi kokumelana nokungaphakathi, lula ukuqonda okuqondayo kwalezi zindawo zikagesi. Ngemininingwane ephelele nokuqonda okuphelele, ungahlola izinsiza ezengeziwe kusuka I-DFUN tech.