Lub tshuab hluav taws xob hloov hluav taws xob yog lub zog 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 hloov cov transistors rau thiab tawm kom tswj tau qhov tso zis hluav taws xob ruaj khov. Lub zog hloov hluav taws xob feem ntau yog tsim los ntawm pulse width modulation (PWM) tswj IC thiab MOSFET. Nyob rau hauv lub switching regulator Circuit Court, thaum lub hloov nyob rau hauv lub on -off xeev, lub raj ua hauj lwm alternated nyob rau hauv ob lub xeev ntawm kev txiav -off thiab saturation. Los ntawm kev paub txog triode, thaum lub triode ua haujlwm nyob rau hauv qhov kev txiav -tawm lub xeev, txawm hais tias qhov voltage poob ntawm lub raj yog loj, tab sis qhov tam sim no ntws los ntawm lub raj yog yuav luag xoom; Thaum lub raj ua haujlwm nyob rau hauv lub xeev saturated, qhov tam sim no ntws los ntawm lub raj yog loj, tab sis qhov voltage poob ntawm lub raj yog kwv yees li xoom. Yog li ntawd, thaum lub regulating raj ua hauj lwm nyob rau hauv lub switching xeev, nws tus kheej lub hwj chim yog heev tsawg. Nyob rau hauv tib lub zog tso zis, qhov ua tau zoo ntawm kev hloov hluav taws xob tswj hluav taws xob yog siab dua li ntawm cov khoom siv hluav taws xob tswj hwm, feem ntau ncav cuag li 85 feem pua. Vim nws qhov kev siv tsawg, qee zaum txawm tias lub dab dej kub tsis siv, thiab cov khoom siv hluav taws xob hloov feem ntau tsis muaj lub zog loj zaus transformer, uas txo nws qhov hnyav thiab ntim 2.
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