Kev ua haujlwm thiab kev faib tawm ntawm Kev Hloov Hluav Taws Xob Transformers
Ua ntej qhia txog kev hloov hluav taws xob hloov hluav taws xob, peb yuav tsum xub nkag siab lub tswv yim ntawm lub hwj chim transformers. Vim hais tias yav dhau los yog ib qho cuab yeej uas ntxiv lub raj hloov mus rau lub hwj chim transformer, nws qhov kev siv qub tsis tau hloov. Txawm li cas los xij, cov haujlwm ntawm hom tshiab ntawm transformer no txawv heev ntawm cov transformers zoo tib yam. Feem ntau, nyob rau hauv circuits, hom transformer no tsis tsuas yog muaj kev ua haujlwm ntawm kev hloov hluav taws xob los ntawm cov khoom siv hluav taws xob zoo tib yam, tab sis kuj muaj kev sib cais ntawm rwb thaiv tsev thiab cov khoom siv hluav taws xob sib txuas. Hom transformer no feem ntau yog siv los hloov cov khoom siv hluav taws xob ntawm ntau qhov hluav taws xob ntau zaus. Yog li dab tsi yog lub luag haujlwm tshwj xeeb ntawm cov khoom no? Nws kev faib tawm yog dab tsi? Tam sim no cia tus editor qhia nws rau koj.
Rau transformers, lawv yeej yog ib tug ntaus ntawv uas yuav hloov voltage. Feem ntau peb kuj hu nws lub hwj chim transformer. Txawm li cas los xij, qhov sib txawv ntawm lub zog hloov pauv hloov pauv thiab lwm yam hloov pauv yog tias nws muaj qhov hloov pauv hloov pauv ntxiv piv rau cov hloov pauv tsis tu ncua. Nyob rau hauv txoj kev no, tus kheej-excited intermittent oscillator yog tsim, uas nws muaj nuj nqi yog los kho cov input DC voltage rau hauv high-frequency mem tes voltage ua ntej outputting.
Ntxiv nrog rau cov haujlwm saum toj no, cov khoom no kuj muaj lub luag haujlwm tseem ceeb dua, uas yog kev sib kis thiab kev hloov pauv ntawm lub zog. Nyob rau hauv lub flyback Circuit Court, thaum peb ua qhov hloov, cov hloov pauv hloov pauv hluav taws xob rau hauv qhov chaw sib nqus thiab khaws cia rau kev ua haujlwm. Thaum peb disconnect lub raj hloov, ntawm qhov tsis sib xws, cov hlau nplaum kuj yuav hloov mus rau hauv hluav taws xob hluav taws xob.
Yog li yuav ua li cas nws ua haujlwm nyob rau hauv pem hauv ntej Circuit Court? Ua ntej, thaum peb ua cov txheej txheem kev ua haujlwm ntawm lub raj hloov, cov khoom siv hluav taws xob cuam tshuam yuav raug siv los muab cov khoom thauj ncaj qha, thaum tseem khaws cia lub zog los ntawm inductance. Thaum peb disconnect lub hloov raj, hluav taws xob hluav taws xob yuav raug xa mus rau lub load los ntawm lub zog cia inductor.
Thaum kawg, lub zog hloov hluav taws xob hloov pauv tuaj yeem hloov pauv qhov hluav taws xob DC xa mus rau hauv, yog li tso tawm ntau qhov ntau thiab tsawg ntawm cov hluav taws xob tsawg. Peb tau tham txog nws txoj haujlwm tiav lawm, yog li nws qhov kev faib tawm yog dab tsi?
Feem ntau hais lus, muaj ob pawg sib txawv ntawm kev hloov hluav taws xob hloov hluav taws xob, uas yog ib qho excitation thiab ob chav excitation. Cov qauv ntawm ob qhov kev faib tawm no txawv, thiab lawv cov qauv kev ua haujlwm kuj txawv heev. Ib hom excitation tuaj yeem nkag mus rau unipolar pulses thiab tso tawm rau pem hauv ntej thiab rov qab voltage; Qhov sib txawv ntawm ob hom excitation thiab input bipolar mem tes yog tias feem coob ntawm lawv tso zis bipolar mem tes voltage.
Los ntawm cov ntawv sau saum toj no, ntau tus phooj ywg tau nkag siab qee yam ntawm transformers. Rau kev hloov hluav taws xob hloov hluav taws xob, tsis yog nws ntxiv qhov sib txawv ntawm cov hluav taws xob hloov hluav taws xob, tab sis qee qhov ntawm lawv cov ntawv thov tseem muaj ntau dua. Tsis tas li ntawd, rau qee qhov kev siv tshwj xeeb, lub zog hloov hluav taws xob nrog cov cuab yeej no tuaj yeem hloov hluav taws xob raws li kev xav tau, ua tiav cov txiaj ntsig kev lag luam ntawm kev ua tau raws ntau hom kev xav tau ntawm qhov hluav taws xob.
