Yog vim li cas voltage stabilization fais fab mov thiaj li nrov
Kev tswj fais fab kev faib tawm txoj kev, raws li hom tso zis fais fab mov DC tswj fais fab mov thiab AC tswj fais fab mov; raws li kev sib txuas ntawm kev tswj xyuas hluav taws xob nrog cov khoom siv hluav taws xob tswj hluav taws xob thiab cov khoom siv hluav taws xob sib txuas; Raws li kev khiav hauj lwm lub xeev ntawm kev hloov raj linear tswj fais fab mov thiab switching tswj fais fab mov; Raws li hom Circuit Court yog muab faib ua ib qho yooj yim tswj fais fab mov thiab tawm tswv yim tswj fais fab mov, thiab lwm yam.
Switching tswj fais fab mov qhov zoo thiab qhov tsis zoo
Qhov zoo:
"Switching tswj fais fab mov" thiab "series hloov hom tswj fais fab mov" piv rau lub zog txuag; hloov mus rau cov kev hloov pauv hauv cov khoom siv hluav taws xob muaj peev xwm; Ntau yam ntawm cov zis voltage adjustable; ib lub raj hloov tau yooj yim tau txais ntau qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv hluav taws xob; me me, lub teeb yuag thiab lwm yam zoo, thiab tau txais kev pom zoo. Qhov zoo, thiab tau siv dav dav.
(1) Kev siv hluav taws xob me me, kev ua haujlwm siab
(2) Me me, lub teeb yuag
(3) Kev tswj hwm qhov dav dav
(4) filtering efficiency yog zoo heev, thiaj li hais tias lub peev xwm thiab ntim ntawm lub lim capacitor yog heev txo.
(5) Cov ntaub ntawv hloov pauv hloov pauv
Lub hauv paus ntsiab lus ntawm kev ua haujlwm: rectified thiab lim DC voltage yog muab los ntawm R1 mus rau lub hauv paus ntawm lub regulator raj, thiaj li hais tias lub regulator raj conduction, lub voltage nyob rau hauv lub V1 conduction los ntawm lub RP, R2 ua rau lub V2 conduction, ua raws li los ntawm V3 kuj. conduction, uas yog lub emitter thiab collector ntawm V1, V2, V3 voltage yog tsis hloov lawm (lub luag hauj lwm ntawm lub voltage regulator raj yog raws nraim tib yam li lub luag hauj lwm ntawm lub regulator). Kho RP, koj tuaj yeem tau txais qhov tso zis hluav taws xob zoo, R1, RP, R2 thiab R3 piv txiav txim siab qhov txiaj ntsig qhov hluav taws xob ntawm qhov hluav taws xob no.
Qhov sib txawv ntawm linear tswj fais fab mov thiab switching fais fab mov
Hloov cov kev tswj fais fab yog los ntawm DC mus rau hauv siab zaus mem tes, thiab tom qab ntawd hloov hluav taws xob hluav taws xob kom ua tiav qhov kev hloov pauv hluav taws xob thiab kev tswj hluav taws xob. Cov kab hluav taws xob tswj hluav taws xob ncaj qha txuas ncaj qha rau hauv series nrog kev hloov pauv hloov tau los faib cov khoom siv hluav taws xob DC kom ua tiav qhov kev hloov pauv hluav taws xob thiab kev tswj hluav taws xob, uas yog qhov tseem ceeb sib npaug rau kev sib txuas ntawm qhov sib txawv ntawm cov resistor hauv series.
Switching tswj fais fab mov siab efficiency, thiab yuav boosted los yog phaw. Linear tswj fais fab mov tuaj yeem txo qis qhov voltage, thiab ua haujlwm qis. Switching tswj fais fab mov yuav ua rau muaj kev cuam tshuam ntau zaus, linear tswj fais fab mov tsis cuam tshuam.
