Kev txhim kho thiab Kev Hloov Hloov Hom DC Fais Fab Khoom
Tus kheej zoo siab oscillating laub-rub transistor ib leeg-transformer DC converter tsim los ntawm GH. Roger hauv xyoo 1955 yog qhov pib ntawm kev paub txog kev hloov pauv ntau zaus tswj circuits. Xyoo 1957, Jen Sen ntawm Tebchaws Meskas tau tsim tus kheej-zoo siab thawb-rub Ob chav transformer, xyoo 1964, Asmeskas cov kws tshawb fawb tau npaj lub tswv yim ntawm kev tshem tawm cov kev hloov pauv hloov hluav taws xob ntawm lub zog zaus transformer, uas tau txais txoj hauv kev rau kev txo qis. qhov loj thiab qhov hnyav ntawm cov khoom siv fais fab.
Nyob rau xyoo 1969, vim yog kev txhim kho ntawm qhov kev tiv thaiv hluav taws xob ntawm lub zog hluav taws xob silicon transistors thiab lub sijhawm luv ntawm diode rov qab lub sijhawm, 25 kHz hloov hluav taws xob thaum kawg tau ua.
Tam sim no, cov khoom siv hluav taws xob hloov pauv tau siv dav hauv yuav luag txhua yam khoom siv hluav taws xob xws li ntau yam khoom siv davhlau ya nyob twg thiab cov khoom siv sib txuas lus uas tau tswj hwm los ntawm cov khoos phis tawj hluav taws xob vim lawv qhov me me, lub teeb yuag thiab kev ua haujlwm siab. hom fais fab.
Ntawm cov khoom siv hluav taws xob hloov pauv tam sim no ntawm kev ua lag luam, 100kHz fais fab mov ua los ntawm bipolar transistors thiab 500kHz fais fab mov ua los ntawm MOS-FET tau muab tso rau hauv kev siv, tab sis lawv zaus yuav tsum tau txhim kho ntxiv.
Txhawm rau kom qhov hloov pauv ntau zaus, nws yog ib qho tsim nyog yuav tsum tau txo qis kev hloov pauv, thiab txhawm rau txo qis kev hloov pauv, cov khoom siv hluav taws xob ceev yuav tsum tau ua.
Txawm li cas los xij, raws li kev hloov pauv ceev, surges lossis suab nrov tuaj yeem tsim los ntawm kev faib cov inductance thiab capacitors hauv Circuit Court lossis cov nqi khaws cia hauv diodes. Nyob rau hauv txoj kev no, nws yuav tsis tsuas cuam tshuam rau cov khoom siv hluav taws xob nyob ib puag ncig, tab sis kuj txo qis kev ntseeg siab ntawm lub hwj chim ntawm nws tus kheej.
Ntawm lawv, txhawm rau tiv thaiv qhov hluav taws xob hluav taws xob uas tshwm sim nrog kev qhib thiab kaw ntawm qhov hloov, RC lossis LC buffers tuaj yeem siv tau, thiab rau qhov tam sim no surge tshwm sim los ntawm kev khaws cia ntawm lub diode, ib qho sib nqus tsis sib nqus ua los ntawm amorphous. magnetic core tuaj yeem siv tau.
Txawm li cas los xij, rau cov zaus siab tshaj 1MHz, yuav tsum siv lub resonant Circuit Court, kom qhov hluav taws xob ntawm qhov hloov lossis qhov tam sim no los ntawm kev hloov pauv yog sine yoj, uas tuaj yeem tsis tsuas yog txo qis kev poob, tab sis kuj tswj qhov tshwm sim ntawm surges. Txoj kev hloov no yog hu ua resonant switching.
Tam sim no, kev tshawb fawb ntawm hom kev hloov hluav taws xob hloov hluav taws xob no yog qhov ua tau zoo heev, vim tias txoj kev no tuaj yeem txo qhov kev hloov pauv mus rau xoom yam tsis muaj kev hloov pauv ceev heev, thiab lub suab nrov kuj tseem me me, uas xav tias yuav dhau los ua ib qho ntawm qhov siab. frequencies ntawm switching zog mov. txoj kev loj.
Tam sim no, ntau lub teb chaws hauv ntiaj teb tab tom ua haujlwm rau kev tshawb fawb txog kev siv ntau-terahertz converters.
