Ua ntej tshaj plaws, hais txog seb lub zog puas tuaj yeem khaws cia, cia saib qhov sib txawv ntawm qhov zoo tagnrho transformers thiab cov kev khiav hauj lwm transformers:
1. Kev txhais thiab cov yam ntxwv ntawm cov transformers zoo tagnrho
Hom kev kos duab zoo tagnrho transformers
Ib qho zoo tagnrho transformer yog ib qho khoom siv hluav taws xob zoo tagnrho. Nws xav tias: tsis muaj hlau nplaum to, tsis muaj tooj liab poob thiab hlau poob, thiab infinite self-inductance thiab kev sib nrig sib inductance coefficients thiab tsis hloov nrog lub sij hawm. Raws li cov kev xav no, qhov zoo tshaj plaws transformer tsuas yog paub txog kev hloov pauv ntawm qhov hluav taws xob thiab tam sim no, tsis muaj lub zog cia lossis siv lub zog, tab sis tsuas yog hloov lub zog hluav taws xob nkag mus rau qhov kawg ntawm cov zis.
Vim tias tsis muaj qhov sib nqus nqus, qhov sib nqus ntawm qhov zoo tagnrho transformer yog tag nrho rau hauv cov tub ntxhais, thiab tsis muaj lub zog hlau nplaum tsim nyob rau hauv qhov chaw ib puag ncig. Nyob rau tib lub sijhawm, qhov tsis muaj tooj liab thiab hlau poob txhais tau hais tias lub tshuab hluav taws xob yuav tsis hloov hluav taws xob rau hauv hluav taws xob los yog lwm yam ntawm lub zog poob thaum lub sijhawm ua haujlwm, thiab nws yuav tsis khaws lub zog.
Raws li cov ntsiab lus ntawm "Circuit Principles": Thaum lub transformer nrog ib tug hlau core ua hauj lwm nyob rau hauv ib tug unsaturated core, nws magnetic permeability yog loj, yog li ntawd lub inductance yog loj, thiab cov tub ntxhais poob yog negligible, nws muaj peev xwm kwv yees li qhov zoo tagnrho. transformer.
Cia peb saib nws cov lus xaus dua. "Nyob rau hauv ib qho zoo tagnrho transformer, lub zog absorbed los ntawm thawj winding yog u1i1, thiab lub zog absorbed los ntawm lub thib ob winding yog u2i2 = -u1i1, uas yog, lub hwj chim input mus rau thawj sab ntawm lub transformer yog tso zis rau lub load los ntawm lub thib ob sab. Tag nrho lub zog absorbed los ntawm lub transformer yog xoom, yog li qhov zoo tagnrho transformer yog ib feem uas tsis cia lub zog los yog siv zog.
” Tau kawg, qee tus phooj ywg kuj tau hais tias nyob rau hauv flyback circuit, lub transformer tuaj yeem khaws lub zog. Qhov tseeb, kuv tau tshawb xyuas cov ntaub ntawv thiab pom tias nws cov khoom siv hluav taws xob tso tawm muaj lub luag haujlwm ntawm kev khaws cia lub zog ntxiv rau kev ua tiav cov hluav taws xob sib cais thiab qhov sib txuam voltage.Lub qub yog cov cuab yeej ntawm lub transformer, thiab tom kawg yog cov cuab yeej ntawm inductor.Yog li ntawd, qee cov neeg hu nws lub inductor transformer, uas txhais tau hais tias lub zog cia yog tiag tiag cov cuab yeej inductor.
2. Cov yam ntxwv ntawm transformers hauv kev ua haujlwm tiag tiag
Muaj qee qhov nyiaj ntawm lub zog cia hauv kev ua haujlwm tiag tiag. Nyob rau hauv qhov tseeb transformers, vim muaj tej yam xws li magnetic to, tooj liab thiab hlau poob, lub transformer yuav muaj ib tug tej yam nyiaj txiag cia.
Cov tub ntxhais hlau ntawm lub transformer yuav tsim hysteresis poob thiab eddy tam sim no poob nyob rau hauv qhov kev txiav txim ntawm alternating magnetic teb. Cov kev poob no yuav siv ib feem ntawm lub zog hauv daim ntawv ntawm lub zog hluav taws xob, tab sis kuj tseem yuav ua rau qee yam ntawm cov hlau nplaum hluav taws xob khaws cia hauv cov tub ntxhais hlau. Yog li ntawd, thaum lub transformer muab tso rau hauv lub lag luam los yog txiav tawm, vim hais tias ntawm kev tso tawm los yog cia ntawm magnetic teb zog nyob rau hauv lub hlau core, lub sij hawm luv luv overvoltage los yog surge tshwm sim yuav tshwm sim, ua rau muaj kev cuam tshuam rau lwm yam khoom nyob rau hauv lub system.
3. Inductor zog cia yam ntxwv
Thaum qhov tam sim no hauv Circuit Court pib nce, lubinductoryuav cuam tshuam qhov kev hloov ntawm tam sim no. Raws li txoj cai ntawm electromagnetic induction, ib tug self-induced electromotive quab yuam yog generated nyob rau hauv ob kawg ntawm inductor, thiab nws cov kev taw qhia yog opposite rau cov kev taw qhia ntawm tam sim no hloov. Lub sijhawm no, cov khoom siv hluav taws xob yuav tsum tau kov yeej tus kheej-induced electromotive quab yuam ua haujlwm thiab hloov cov hluav taws xob hluav taws xob mus rau hauv lub zog sib nqus hauv lub inductor rau kev khaws cia.
Thaum qhov tam sim no nce mus txog lub xeev ruaj khov, qhov chaw sib nqus hauv inductor tsis hloov lawm, thiab tus kheej-induced electromotive quab yuam yog xoom. Lub sijhawm no, txawm hais tias tus inductor tsis nqus lub zog los ntawm lub zog hluav taws xob, nws tseem tuav lub zog sib nqus ntawm lub zog khaws cia ua ntej.
Thaum qhov tam sim no nyob rau hauv Circuit Court pib txo, lub magnetic teb nyob rau hauv lub inductor kuj yuav tsis muaj zog. Raws li txoj cai ntawm electromagnetic induction, lub inductor yuav tsim ib tug self-induced electromotive quab yuam nyob rau hauv tib txoj kev raws li qhov tam sim no txo, sim tswj qhov loj ntawm qhov tam sim no. Nyob rau hauv cov txheej txheem no, lub zog magnetic teb nyob rau hauv lub inductor pib tawm thiab hloov mus rau hauv hluav taws xob lub zog los pub rov qab rau hauv Circuit Court.
Los ntawm nws cov txheej txheem cia lub zog, peb tuaj yeem nkag siab yooj yim tias piv nrog lub tshuab hloov pauv, nws tsuas muaj lub zog tawm tswv yim thiab tsis muaj lub zog tso tawm, yog li lub zog khaws cia.
Cov saum toj no yog kuv tus kheej xav. Kuv vam tias nws yuav pab tau txhua tus neeg tsim qauv ntawm lub thawv hloov pauv kom nkag siab txog cov transformers thiab inductors! Kuv kuj xav qhia rau koj qee qhov kev paub txog science:me me transformers, inductors, thiab capacitors disassembled los ntawm cov khoom siv hauv tsev yuav tsum raug tso tawm ua ntej kov lossis kho los ntawm cov kws tshaj lij tom qab hluav taws xob tawm!
Kab lus no yog los ntawm Is Taws Nem thiab cov ntawv pov thawj yog los ntawm tus sau thawj
Post lub sij hawm: Oct-04-2024