Cov ntsiab lus tseem ceeb ntawm Kev Hloov Cov Khoom Siv Hluav Taws Xob
Nrog rau kev tsim hluav taws xob hluav taws xob thev naus laus zis, kev sib raug zoo ntawm cov khoom siv hluav taws xob hluav taws xob thiab tib neeg txoj haujlwm thiab lub neej tau dhau los ua ze. Cov khoom siv hluav taws xob tsis tuaj yeem ua yam tsis muaj lub zog muaj zog. Xyoo 1980s, cov khoom siv hluav taws xob hauv computer tau hloov pauv mus rau hauv cov khoom siv hluav taws xob hloov pauv, ua rau hloov cov khoom siv hluav taws xob hauv computer. Hauv xyoo 1990, cov khoom siv hluav taws xob hloov pauv tau nkag mus rau ntau yam khoom siv hluav taws xob thiab hluav taws xob, thiab tau siv dav hauv cov khoom siv hluav taws xob rau cov kev pab cuam - tswj cov keyboards, kev sib txuas lus, cov khoom siv hluav taws xob tshawb nrhiav, cov cuab yeej tswj hwm, thiab lwm yam, uas tau txhawb nqa txoj kev loj hlob sai ntawm kev hloov hluav taws xob siv tshuab. Hloov fais fab mov yog ib hom kev siv hluav taws xob uas siv cov cuab yeej hluav taws xob niaj hnub siv hluav taws xob los tswj lub sijhawm sib piv ntawm kev qhib thiab tawm ntawm lub transistor hloov, tswj cov zis hluav taws xob ruaj khov. Hloov fais fab mov feem ntau yog tsim los ntawm pulse width modulation (PWM) tswj IC thiab MOSFET. Piv nrog rau cov khoom siv hluav taws xob linear, tus nqi ntawm ob qho tib si hloov khoom siv hluav taws xob nce ntxiv nrog kev nce ntawm cov khoom siv hluav taws xob, tab sis lawv qhov kev loj hlob txawv. Tus nqi ntawm cov khoom siv hluav taws xob linear yog qhov tseeb siab dua li ntawm qhov hloov hluav taws xob hloov hluav taws xob ntawm qee qhov tso zis hluav taws xob, uas yog tus nqi thim rov qab. Nrog rau kev txhim kho thiab kev tsim kho tshiab ntawm lub zog hluav taws xob thev naus laus zis, kev hloov hluav taws xob thev naus laus zis yog qhov hloov tshiab tas li, thiab qhov kev hloov pauv ntawm tus nqi no tau nce zuj zus mus rau qhov qis tso zis hluav taws xob kawg, muab ntau qhov chaw loj hlob rau kev hloov cov khoom siv hluav taws xob. Qhov siab -ntau zaus kev txhim kho ntawm cov khoom siv hluav taws xob hloov pauv yog cov kev taw qhia ntawm lawv txoj kev loj hlob. Kev siv ntau zaus ua rau cov khoom siv hluav taws xob hloov me me thiab ua rau lawv nkag mus rau ntau yam ntawm daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv siab -tech fields, txhawb cov miniaturization thiab lub teeb yuag ntawm high{16}}tech khoom. Tsis tas li ntawd, kev txhim kho thiab kev siv cov khoom siv hluav taws xob hloov pauv yog qhov tseem ceeb hauv kev txuag hluav taws xob, kev txuag nyiaj txiag, thiab kev tiv thaiv ib puag ncig.
Hloov fais fab mov yog siv los tswj cov hlab hloov pauv los ntawm cov kab hluav taws xob kom siab - nrawm rau / tawm. Nws hloov cov tam sim no ncaj qha mus rau hauv siab - zaus hloov tam sim no thiab muab nws rau transformers rau kev hloov pauv, yog li tsim ib lossis ntau pawg ntawm qhov xav tau voltages! Yog vim li cas rau kev hloov mus rau siab - zaus AC lub zog yog tias qhov ua tau zoo ntawm siab - zaus AC lub zog hauv transformer transformer circuits yog ntau dua 50HZ. Yog li ntawd, kev hloov pauv hloov pauv tuaj yeem ua rau me me thiab tsis kub heev thaum lub sijhawm ua haujlwm! Tus nqi qis heev. Yog tias 50HZ tsis hloov mus rau qhov siab zaus, ces qhov hloov hluav taws xob hloov pauv tsis muaj nuj nqis !! Kev hloov pauv hloov pauv tsis yog qhov tsis meej. Lawv tsuas yog transformers xwb! Qhov no yog lub zog hloov hluav taws xob. Hloov cov khoom siv hluav taws xob feem ntau tuaj yeem muab faib ua ob hom: cais thiab tsis cais. Hom kev rho tawm yuav tsum muaj qhov hloov pauv hloov pauv, thaum hom tsis cais tawm yuav tsis tas muaj ib qho.
