Cov ncauj lus kom ntxaws piav qhia ntawm linear regulated fais fab kev lag luam
Txoj kab hluav taws xob ruaj khov xa mus rau ntawm no yog hais txog DC ruaj khov fais fab uas lub raj tswj kev ua haujlwm hauv lub xeev linear. Kho lub raj ua haujlwm rau kev ua haujlwm hauv lub xeev linear tuaj yeem nkag siab raws li hauv qab no: RW (saib cov txheeb xyuas hauv qab) yog txuas ntxiv mus sib txawv, uas yog, linear. Nyob rau hauv hloov hom fais fab khoom, txawm li cas los xij, nws yog txawv. The switching tube (in switch mode power supplies, we usually refer to the adjustment tube as the switching tube) works in two states: on - with very low resistance; Tawm - cov kev tawm tsam yog ntau heev. Lub raj ua haujlwm nyob rau hauv lub xeev / tawm lub xeev yog pom tseeb tsis yog nyob rau hauv ib lub xeev linear.
Linear ruaj khov fais fab mov yog ib hom dc ruaj khov hluav taws xob muab cov siv tau siv thaum ntxov. Cov yam ntxwv ntawm Lrear Regulated DC Fais Fab Khoom Siv yog: Cov zis hluav taws xob qis dua qhov kev tawm suab; Cov lus teb nrawm nrawm thiab cov zis me me; Tsawg suab nrov tsim los ntawm kev ua haujlwm; Tsawg efficiency (LDD, uas feem ntau pom tam sim no, yog tsim los daws cov teeb meem muaj txiaj ntsig); High cua kub tiam, tshwj xeeb tshaj yog los ntawm high-fais fab muaj zog ntau zog, tsis ncaj ntxiv cov suab nrov thermal mus rau lub kaw lus.
Ua haujlwm ua haujlwm: Cia peb siv daim duab txuas mus ntxiv no los qhia txog txoj cai tswjfwm kev tswj hwm hauv txoj kev tswj hwm kev tswj hwm.
Raws li muaj nyob hauv daim duab hauv qab no, cov sib txawv tsis kam tiv taus RL thiab cov hluav taws xob cuam tshuam nrog Circuit Court, thiab cov zis hluav taws xob yog:
Uo {= ui UI × RL / (RW + RL), yog li los ntawm kev kho qhov loj ntawm RW, cov zis voltage tuaj yeem hloov tau. Thov nco ntsoov tias nyob rau hauv qhov sib npaug no, yog tias peb tsuas saib ntawm tus nqi ntawm kev hloov kho, tab sis yog tias peb saib RW thiab RL ua ke, nws yog linear. Kuj tseem nco ntsoov tias peb daim duab tsis piav qhia txog RW cov coj ua zaum kawg raws li kev txuas nrog sab laug, tab sis sab xis. Txawm hais tias tsis muaj qhov sib txawv tsis muaj tseeb los ntawm cov qauv, ntawm txoj cai zoo kawg nkaus qhia txog cov ntsiab lus ntawm cov neeg muaj peev xwm ua haujlwm "
Cia txuas ntxiv: Yog tias peb hloov cov kev tawm tsam zoo nkauj nyob rau hauv daim duab nrog lub trantor lossis field protistor, peb yuav ua tiav lub hom phiaj ntawm voltant ruaj khov. Qhov kev hloov pauv no lossis daim teb hluav taws xob hloov pauv yog siv los kho cov kev tawm voltage loj, yog li nws yog hu ua kev kho tshuab.
