Yuav ua li cas yog qhov voltage tswj txoj kev ntawm brushless DC reducer

Lub brushless DC reducer tsis siv qhov kev hloov pauv tam sim no, tab sis siv lub inverter Circuit Court hloov cov kev taw qhia tam sim no. Thaum tswj lub DC brushless lub cev muaj zog, feem ntau siv lub inverter Circuit Court. Tsis tas li ntawd, tus nqi tam sim no kuj tuaj yeem hloov kho los ntawm kev hloov qhov ntxiv voltage ntawm txhua theem los ntawm inverter Circuit Court. Hauv kev tswj hluav taws xob, PWM (Pulse Width Modulation=Pulse Width Modulation) feem ntau yog siv. PWM yog ib txoj hauv kev hloov qhov hluav taws xob los ntawm kev kho qhov ntev ntawm cov mem tes ON / OFF lub sijhawm. Nws lub luag haujlwm tseem ceeb yog los kho qhov sib piv ntawm lub sijhawm mus rau off-time (lub luag haujlwm lub voj voog). Yog hais tias tus conductivity yog siab, tib cov nyhuv raws li qhov nce voltage yuav tau. Yog tias tus nqi ON raug txo, nws yuav muaj txiaj ntsig zoo ib yam li txo qhov voltage.

Kuj tseem muaj cov khoos phis tawj microcomputers nrog cov khoom siv tshwj xeeb uas tau teeb tsa los siv PWM. Thaum ua haujlwm sine yoj tswj, nws yog ib qho tsim nyog los tswj qhov voltage ntawm 3 theem, yog li cov software yuav nyuaj me ntsis dua li 120-degree energization tswj tsuas yog 2 theem. Lub inverter yog ib qho tseem ceeb rau kev tsav tsheb tsis muaj DC lub cev muaj zog. Inverters kuj tseem siv hauv AC motors, tab sis nws tuaj yeem txiav txim siab tias lub npe hu ua "inverter type" hauv cov khoom siv hauv tsev siv DC brushless motors. Hloov ON lub sijhawm dhau ib lub sijhawm, hloov tus nqi rms ntawm qhov voltage. Raws li ON lub sij hawm ntawm PWM tso zis piv rau cov zis voltage nce, tus nqi rms yog ze rau qhov thov voltage (ON).