Vim li cas cov khoom siv hluav taws xob tswj tau dav siv
Muaj ntau txoj hauv kev faib cov khoom siv fais fab. Raws li hom tso zis fais fab, muaj DC tswj fais fab mov thiab AC tswj fais fab mov; Raws li kev sib txuas hom ntawm cov tswj Circuit Court thiab lub load, muaj series tswj fais fab mov thiab parallel tswj fais fab mov; Muaj linear tswj fais fab mov thiab switching tswj fais fab mov hauv lub xeev ua hauj lwm; yooj yim tswj fais fab mov thiab tawm tswv yim tswj fais fab mov muab faib ua Circuit Court hom, thiab hais txog.
qhov zoo:
"Switching tswj fais fab mov" piv nrog "series adjustable tswj fais fab mov", yog ntau npaum thiab txuag zog; nws muaj peev xwm hloov tau rau kev hloov pauv hauv lub zog loj; cov zis voltage tuaj yeem hloov kho ntau yam; ib lub raj hloov tau yooj yim tau txais ntau pawg ntawm cov qib sib txawv. Fais fab mov; me me, lub teeb yuag thiab ntau lwm yam zoo, thiab yog siv dav.
(1) Kev siv hluav taws xob tsawg thiab kev ua haujlwm siab
(2) Me me thiab lub teeb yuag
(3) Ntau yam kev tswj hwm qhov hluav taws xob
(4) Kev ua tau zoo ntawm kev lim dej tau zoo heev, thiab lub peev xwm thiab ntim ntawm lub lim capacitor raug txo kom tsawg.
(5) Daim ntawv Circuit Court yog hloov tau thiab muaj ntau yam
Lub hauv paus ntsiab lus ua haujlwm: Tom qab kho thiab lim, DC qhov hluav taws xob yog muab los ntawm R1 rau lub hauv paus ntawm txoj kev tswj lub raj, kom lub raj tswj tau qhib. Thaum V1 qhib, qhov hluav taws xob dhau los ntawm RP thiab R2 kom V2 tig rau, thiab tom qab ntawd V3 tseem qhib. Lub sij hawm no, V1, Lub emitter thiab collector voltages ntawm V2 thiab V3 tsis hloov lawm (nws muaj nuj nqi yog raws nraim tib yam li cov Zener raj). Los ntawm kev kho RP, qhov ruaj khov tso zis hluav taws xob tuaj yeem tau txais, thiab qhov piv ntawm R1, RP, R2 thiab R3 txiav txim siab tus nqi hluav taws xob ntawm qhov hluav taws xob no.
Qhov sib txawv ntawm linear tswj fais fab mov thiab switching fais fab mov
Lub switching tswj fais fab mov realizes voltage conversion thiab voltage stabilization los ntawm converting direct tam sim no mus rau high-frequency pulses, thiab ces ua electromagnetic conversion. Lub linear tswj fais fab mov yog txuas ncaj qha nyob rau hauv series nrog ib tug controllable hloov lub caij los faib cov input DC voltage kom paub qhov voltage hloov dua siab tshiab thiab voltage stabilization, uas yog qhov tseem ceeb sib npaug rau kev sib txuas ib tug kuj sib txawv resistor nyob rau hauv series.
Lub tshuab hluav taws xob hloov hluav taws xob muaj kev ua haujlwm siab, thiab nws tuaj yeem nce lossis nqis. Linear tswj cov khoom siv hluav taws xob tsuas tuaj yeem nqis los thiab muaj kev ua haujlwm tsawg. Hloov cov kev tswj fais fab yuav ua rau muaj kev cuam tshuam ntau zaus, thaum cov khoom siv hluav taws xob linear tswj yuav tsis cuam tshuam.
