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Uyini ehlukanisayo voltage

voltage abahlukanisi kabanzi electronics ngoba bavumela indlela elilungile ukuba ukuxazulula inkinga voltage isiqondiso. Kukhona izixazululo ahlukahlukene kwendikimba kusukela elula, efana ezinye izibani odongeni, ukuba ngokwanele okuyinkimbinkimbi njengendawo bayeke ukulawula amabhodi normalizers Windings we amapayipi voltage.

Uyini ehlukanisayo voltage? Ekwakhiweni elula - umshini, kuye ngokuthi ukudluliswa isilinganiso (ngokuhlukile) elawula lo voltage okukhiphayo isihlobo ekufakeni.

Ngasekuqaleni ezitolo ngokuvamile ungathola isibani, udonga isibani, eyenzelwe izibani ezimbili. Sici Its ekhethekile ukuthi izibani ngokwabo siklanyelwe usebenza nge voltage 127 volts. wonke Uhlelo ixhunywe yasendlini amandla isokhethi nge 220 nokuthi isebenza ngempumelelo. Ayikho izimangaliso! Into wukuthi indlela yokuxhuma babashayeli kwakhiwa lutho kodwa njengoba a ehlukanisayo voltage. Masikhumbule theory eyisisekelo kagesi, okungukuthi, uxhumano kuqondane and serial abathengi. Njengoba yaziwa, e ezilandelanayo imodi usuke amperage alinganayo, futhi voltage ushintsho (umthetho khumbula Ohm sika). Ngakho-ke, isibonelo nge uhlobo olufanayo isibani isibani axhunyiwe e chungechunge, okunikeza nokuncipha supply voltage izikhathi ezimbili (110). Futhi, ehlukanisayo voltage ingatholakala idivayisi, ihambisa isignali komunye antenna kuma-TV amaningi. Eqinisweni, izibonelo eziningi.

Ake sicabangele elula voltage ehlukanisayo ngesisekelo the resistors ezimbili R1-R2. Ukumelana ixhumeke chungechunge ku iziphetho ukutholakala enikeziwe input voltage U. Kusukela iphuzu phakathi umqhubi ohlanganisa resistors, kukhona okuphumayo ezengeziwe. Okungukuthi, kuvela semikhawulweni amathathu, amabili - kukhona ezikhumulweni yangaphandle (phakathi inani voltage U) kanye isilinganiso ukwakha U1 U2.

Ukubala of the ehlukanisayo voltage, usebenzisa umthetho Ohm sika. Njengoba mina = U / R, U iwumkhiqizo wamanje ku ukumelana. Ngakho, leyo ndawo-R1 ne voltage kuyinto U1, kuyilapho u-R2 ukuba U2. I lwamanje ke elilingana (uxhumano serial). Banikezwe umthetho ngoba iketango ephelele, siyabona ukuthi supply isamba U U1 + U2.

Uyini wamanje ngaphansi kwalezi zimo? Generalizing ezothando, sithola:

I = U / (ngo-R1 + u-R2).

Kule singakwazi ukuthola ukubaluleka voltage (U ephumayo) eMhlanganweni ekhishwa ehlukanisayo (lokhu kungaba kokubili U1, U2):

U ophumayo = U *-R2 / (ngo-R1 + u-R2).

Ukuze abahlukanisi nge resistances adjustable kukhona ezinye izici ezibalulekile okumele kubhekwe at the stage of isiphetho, futhi ukusebenza.

Okokuqala, lezi zixazululo ayikwazi ukusetshenziswa ukuze ulungise voltage abathengi enamandla. Ngokwesibonelo, ngale ndlela kuyinto engenakwenzeka ukuba amandla motor kagesi. Esinye sezizathu - kuba Resistor uyakwazisa ngokwabo. Ukumelana kilowatts uma ngabe zikhona, amadivayisi omkhulu ngokweqile kwakuqeda ingxenye amandla umxhwele njengoba ukushisa.

Ixhunyiwe umthwalo ukumelana ukubaluleka akufanele kube ngaphansi kuka- ukumelana kagesi busebenze we ehlukanisayo, ngaphandle kwalokho kudingeka recalculate ohlelweni lonke. Kungakuhle umehluko ehlukanisayo R R umthwalo kufanele ibe nkulu ngangokunokwenzeka. Kubalulekile ngokunembile ukhethe amagugu R1 R2, kusukela amahlelo ngokweqile kuhilelani ngokweqile voltage iconsi, futhi ngeke overheat liphansi kakhulu, ukumosha amandla bafudumale.

Ukubala ehlukanisayo ukubaluleka ngokuvamile akhethiwe isikhathi sayo samanje (isb, 10) mkhulu exhunyiwe umthwalo amperage. Ngaphezu kwalokho, ukwazi samanje kanye voltage, ukumelana kuhlanganiswe ibalwa (ngo-R1 + u-R2). Ngaphezu kwalokho, amatafula olandelayo ezikhethiwe ejwayelekile amagugu R1-R2 (ekubukeni kwamandla abo handling ikhono ukugwema ukushisa ngokweqile).

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