Qhov sib txawv tseem ceeb ntawm High-Frequency thiab AC Hloov Cov Khoom Siv Hluav Taws Xob
Lub siab - zaus hloov fais fab mov yog tsim los them lub roj teeb thaum muab lub zog rau DC load. Yog tias lawv sib xyaw ua ke, nws yuav yog DC fais fab mov npo. DC fais fab mov vaj huam sib luag tuaj yeem muab lub zog rau kev tiv thaiv kev xa tawm, teeb liab, kev saib xyuas, teeb pom kev kub ceev, thiab kev ua haujlwm hauv Circuit Court breaker. Niaj hnub no, peb feem ntau nkag siab txog qhov sib txawv ntawm qhov siab - zaus hloov cov khoom siv hluav taws xob thiab AC hloov hluav taws xob khoom siv
1. Qhov sib txawv tseem ceeb ntawm siab - zaus hloov DC fais fab mov thiab AC hloov hluav taws xob yog nyob ntawm seb puas muaj qhov sib txawv ntawm cov kev taw qhia tam sim no. Qhov li ntawd -hu ua alternating tam sim no nyob rau hauv alternating ncig ntawm tam sim no thiab nws cov kev taw qhia hloov pauv. Nplhaib transformer yog AC hloov hluav taws xob, thiab cov zis ntawm lub transformer tsis muab faib ua cov ncej zoo thiab tsis zoo, uas tuaj yeem txuas tau dawb.
2. Direct tam sim no hais txog ib qho tam sim no uas nws cov kev taw qhia tsis hloov raws sij hawm tab sis nws qhov amplitude tuaj yeem sib txawv. Qhov kev txiav txim siab tso zis tam sim no kuj yog qhov tam sim no tsis tu ncua, xws li lub zog hloov hluav taws xob. Direct tam sim no yog sawv cev los ntawm cov tam sim no ncaj qha los yog ib txoj kab ncaj nraim, xws li DC12V-24V. High zaus hloov DC fais fab mov muab faib ua tus ncej zoo thiab tsis zoo. Yog hais tias qhov kev twb kev txuas yog thim rov qab, nws yuav hlawv tawm lub hwj chim mov.
Qhov tseeb, lub toroidal transformer kuj tseem tuaj yeem muab cov tam sim no ncaj qha thiab tsuas yog yuav tsum muaj ib feem - tus choj rectifier - kom tau raws li qhov yuav tsum tau ua. Qee lub sij hawm ntau lub lim dej capacitors tau ntxiv los ua kom cov khoom siv hluav taws xob ruaj khov thiab tsis muaj kev cuam tshuam.
3. Kev sib txuas lus tuaj yeem hloov mus rau tam sim no ncaj qha. Feem ntau, cov khoos phis tawj, xov tooj ntawm tes, thiab lwm yam khoom siv tau txuas ncaj qha rau hauv AC lub zog hluav taws xob, thaum peb cov xov tooj thiab khoos phis tawj siv DC lub zog. Yog li ntawd, muaj kev xav tsis thoob vim tias daim phiaj hluav taws xob siv hluav taws xob hloov pauv los tsim thiab xa hluav taws xob.
4. Kev sib txuas lus hloov pauv sinusoidally ntawm lub sijhawm, nce los ntawm 0 mus rau sab sauv txwv, tom qab ntawd maj mam txo qis ntawm qhov txwv sab saud mus rau 0, tom qab ntawd maj mam txo los ntawm 0 mus rau qhov tsis zoo sab saud, thiab tom qab ntawd rov qab mus rau 0. Peb cov khoom siv hluav taws xob xws li xov tooj thiab khoos phis tawj tuaj yeem paub txog qhov muaj peev xwm siab thiab qis. Vim nws cov sinusoidal fluctuations, alternating tam sim no generates siab thiab tsis muaj peev xwm, uas contradicts lub logic kev ntsuam xyuas ntawm cov khoom siv hluav taws xob.
