Lub hauv paus ntawm Linear Power Supplies
Piv nrog rau kev hloov cov khoom siv hluav taws xob, cov khoom siv hluav taws xob linear ib txwm raug thuam rau lawv qhov kev hloov pauv qis. Tab sis txij li thaum muaj technology, nws yuav tsum muaj nws siv. Thiab piv rau cov khoom siv hluav taws xob hloov hluav taws xob, cov cuab yeej siv hluav taws xob ntawm cov khoom siv hluav taws xob yog qhov paub tab ntau dua li nws. Qhov hu ua hav zoov yog tsim nyog. Txij li thaum muaj ib yam dab tsi tshwm sim, nws yuav tsum muaj nws qhov tshwj xeeb.
Lub linear tswj fais fab mov yog ib hom DC tswj fais fab mov uas tau siv ua ntej. Raws li lub xeev ua haujlwm ntawm cov kav dej tswj kav, peb feem ntau faib cov kev tswj fais fab rau hauv ob pawg: linear tswj fais fab mov thiab hloov hluav taws xob tswj hluav taws xob. Cov yam ntxwv ntawm linear regulated DC fais fab mov yog: cov zis voltage yog qis dua qhov input voltage; cov lus teb ceev ceev, cov zis ripple yog me me; lub suab nrov tsim los ntawm kev ua haujlwm tsawg; qhov ua tau zoo yog tsawg (LDO uas feem ntau pom tam sim no tshwm los daws qhov teeb meem kev ua haujlwm); Kev tsim hluav taws xob loj (tshwj xeeb tshaj yog cov khoom siv hluav taws xob siab), uas ua rau lub suab nrov tsis ncaj rau lub cev.
Cov yam ntxwv ntawm linear regulated DC fais fab mov yog: cov zis voltage yog qis dua qhov input voltage; cov lus teb ceev ceev, cov zis ripple yog me me; lub suab nrov tsim los ntawm kev ua haujlwm tsawg; qhov ua tau zoo yog tsawg (LDO uas feem ntau pom tam sim no tshwm los daws qhov teeb meem kev ua haujlwm); Kev tsim hluav taws xob loj (tshwj xeeb tshaj yog cov khoom siv hluav taws xob siab), uas ua rau lub suab nrov tsis ncaj rau lub cev. Tsis tas li ntawd, qhov kev hloov pauv ntawm cov kab hluav taws xob hauv lub zog ua haujlwm hauv lub xeev loj, yog li nws tsim kom muaj cua sov ntau thiab muaj kev ua haujlwm tsawg (kwv yees li 35 feem pua). Nws yuav tsum tau ntxiv ib lub dab dej loj loj, thiab tseem xav tau lub tshuab hluav taws xob loj loj zaus. Thaum ua ntau yam ntawm qhov voltage, cov zis transformer yuav loj dua. Kev hloov lub raj ntawm lub zog hloov hluav taws xob ua haujlwm hauv lub xeev saturated thiab txiav tawm, yog li tus nqi calorific me me, qhov ua tau zoo yog siab (tshaj li 75 feem pua) thiab qhov loj-volume transformer raug tshem tawm.
txoj cai ua haujlwm
Cov txheej txheem ua haujlwm ntawm lub hauv paus tseem ceeb ntawm cov khoom siv hluav taws xob tawm yog tias cov khoom siv hluav taws xob nkag tau pib ruaj khov los ntawm qhov pre-stabilized voltage Circuit Court, thiab tom qab ntawd hloov mus rau hauv DC fais fab mov los ntawm kev sib cais thiab kev kho ntawm lub ntsiab ua haujlwm transformer, thiab tom qab ntawd tswj los ntawm kev tswj Circuit Court thiab ib-chip micro-processing maub los. Cov txheej txheem hloov kho tau raug kho kom zoo los ua kom nws tso tawm qhov siab-precision DC voltage qhov chaw.
Fais fab Transformer thiab Rectification: Hloov 380V AC mus rau DC xav tau.
Pre-stabilization Circuit Court: Siv cov ntsiab lus relay lossis thyristor cov ntsiab lus los kho ua ntej thiab pib ua kom ruaj khov ntawm cov tswv yim AC lossis DC voltage, yog li txo lub zog noj ntawm cov khoom hloov kho thiab txhim kho kev ua haujlwm. Nws kuj ua kom ntseeg tau tias qhov tso zis hluav taws xob yog qhov siab-precision thiab high-precision Stablize.
Linear adjustment element: Finely adjusted filtered DC voltage to make the input voltage raws li qhov yuav tsum tau muaj tus nqi thiab raug.
Filtering yoj: Lub pulsating nthwv dej, cuam tshuam, thiab suab nrov ntawm DC fais fab mov yog tiv thaiv thiab absorbed mus rau qhov loj tshaj plaws, thiaj li yuav xyuas kom meej tias cov zis voltage ntawm DC fais fab mov muaj tsawg ripple, tsis tshua muaj suab nrov, thiab tsawg cuam tshuam.
Tib-chip microcomputer tswj qhov system: ib leeg-chip micro-processing maub los sib piv, txiav txim, xam, txheeb xyuas thiab ua cov cim ntau yam pom, thiab tom qab ntawd teeb tsa cov lus qhia tswj kom ua rau tag nrho cov hluav taws xob stabilization system ntawm DC stabilized fais fab mov ua haujlwm ib txwm. , ntseeg tau thiab sib haum xeeb. .
Cov khoom siv hluav taws xob sib txuas thiab siv hluav taws xob siv hluav taws xob: muab cov khoom siv hluav taws xob siab thiab cov khoom siv hluav taws xob xav tau rau kev ua haujlwm hauv hluav taws xob rau DC voltage stabilization system.
Voltage sampling thiab voltage adjustment: txheeb xyuas qhov tso zis voltage tus nqi ntawm DC stabilized fais fab mov thiab teem thiab kho cov zis voltage tus nqi ntawm DC stabilized voltage fais fab mov.
Sib piv thiab amplifying Circuit Court: Tom qab sib piv cov zis voltage tus nqi ntawm DC stabilized fais fab mov nrog qhov voltage ntawm qhov siv qhov chaw kom tau qhov yuam kev voltage teeb liab, amplify lub tswv yim thiab tswj lub linear hloov lub caij los xyuas kom meej stability ntawm cov zis voltage.
Kev kuaj xyuas tam sim no: Tau txais cov txiaj ntsig tam sim no ntawm DC stabilized fais fab mov rau kev txwv tam sim no lossis cov ntaub ntawv tiv thaiv kev tiv thaiv.
Tsav Circuit Court: lub hwj chim amplifier circuit teeb tsa los tsav cov khoom siv tau.
Zaub: Zaub ntawm tus nqi tso zis voltage thiab tso zis tam sim no tus nqi ntawm DC tswj fais fab mov.
