Txoj kev daws teeb meem ntawm kev hloov hluav taws xob
Kev hloov pauv hluav taws xob yog ib qho tseem ceeb ntawm ntau yam khoom siv hluav taws xob, thiab nws qhov kev ua tau zoo yog ncaj qha cuam tshuam nrog kev ntsuas ntawm cov khoom siv hluav taws xob thiab seb nws puas tuaj yeem ua haujlwm nyab xeeb thiab ntseeg tau. Vim hais tias cov khoom tseem ceeb hauv kev hloov pauv hluav taws xob ua haujlwm hauv lub xeev hloov pauv ntau zaus, lub zog siv me me, qhov hloov pauv tau siab, thiab qhov ntim thiab qhov hnyav tsuas yog 20 feem pua -30 feem pua ntawm cov khoom siv hluav taws xob linear. , yog li nws tau dhau los ua cov khoom tseem ceeb ntawm cov khoom siv hluav taws xob tswj hwm. Kev saib xyuas ntawm cov khoom siv hluav taws xob tsis zoo ntawm cov khoom siv hluav taws xob, raws li lub hauv paus ntsiab lus ntawm kev pib los ntawm kev yooj yim mus rau qhov nyuaj, qhov pib pib nrog lub hwj huam mov ua ntej, thiab tom qab ntawd kho lwm qhov tom qab lees paub tias lub hwj chim mov yog qhov qub, thiab cov khoom siv hluav taws xob tsis ua hauj lwm feem ntau. ntawm cov hluav taws xob tsis ua haujlwm ntawm cov khoom siv hluav taws xob. Yog li ntawd, kev nkag siab txog lub hauv paus ntsiab lus ntawm kev ua hauj lwm ntawm lub hwj chim mov thaum pib, thiab paub txog nws cov kev txawj tu thiab kev ua tsis zoo yuav pab txo lub sij hawm tu lub sij hawm ntawm cov khoom siv hluav taws xob tsis ua hauj lwm thiab txhim kho cov cuab yeej tu tus kheej.
1. Tsis muaj cov zis, fuse yog qhov qub
Qhov tshwm sim no qhia tau hais tias lub zog hloov pauv tsis ua haujlwm lossis tau nkag mus rau hauv lub xeev kev tiv thaiv. Ua ntej tshaj plaws, nws yog ib qho tsim nyog los ntsuas seb tus pin pib ntawm lub hwj chim tswj nti muaj qhov pib voltage. Yog tias tsis muaj qhov pib hluav taws xob lossis qhov pib voltage tsawg dhau, xyuas seb qhov pib resistor thiab cov khoom sab nraud txuas nrog tus pin pib puas. Yog tias lub hwj chim tswj nti yog ib txwm nyob rau lub sijhawm no, qhov kev tshuaj ntsuam saum toj no tuaj yeem pom sai. Yog tias muaj qhov pib hluav taws xob, ntsuas seb qhov tso zis hluav taws xob ntawm cov nti tswj tau muaj qhov siab lossis qib qis dhia thaum lub sijhawm pib. Yog tias tsis muaj qhov dhia, nws txhais tau hais tias cov nti tswj tau tawg, muaj teeb meem nrog cov khoom siv hluav taws xob peripheral oscillation Circuit Court lossis cov kev tiv thaiv Circuit Court, thiab kev tswj yuav raug hloov ua ntej. Chip, thiab tom qab ntawd xyuas cov khoom siv peripheral; yog tias muaj dhia, nws feem ntau yog qhov tsis zoo lossis puas lub raj hloov.
2. Insurance hlawv lossis kib
Feem ntau xyuas cov lim dej loj ntawm 300V, lub diodes ntawm tus choj rectifier, thiab cov raj hloov. Teeb meem nrog kev tiv thaiv kev cuam tshuam Circuit Court kuj yuav ua rau fuses hlawv thiab blacken. Nws yuav tsum tau muab sau tseg tias lub fuse burnout tshwm sim los ntawm kev puas tsuaj ntawm lub hloov raj yuav feem ntau hlawv tawm tam sim no nrhiav tau resistor thiab lub hwj chim tswj nti. NTC thermistors kuj tau yooj yim hlawv tawm ua ke nrog lub fuse.
3. Muaj qhov tso zis hluav taws xob, tab sis cov zis hluav taws xob siab dhau lawm
Qhov kev ua tsis tiav no feem ntau yog los ntawm cov qauv kev tswj hwm hluav taws xob thiab kev tswj xyuas hluav taws xob hluav taws xob. DC tso zis, sampling resistor, yuam kev sampling amplifier xws li TL431, optocoupler, hwj chim tswj nti thiab lwm yam circuits ua ke ua ib lub voj kaw kaw, ib qho teeb meem yuav ua rau cov zis voltage nce.
4. Cov zis hluav taws xob tsawg dhau lawm Ntxiv rau qhov kev tswj hwm hluav taws xob hluav taws xob yuav ua rau cov zis hluav taws xob qis, kuj tseem muaj cov laj thawj hauv qab no uas tuaj yeem ua rau cov zis hluav taws xob tsawg:
ib. Lub zog hloov hluav taws xob muaj qhov cuam tshuam luv luv (tshwj xeeb tshaj yog DC / DC converter luv luv lossis kev ua haujlwm tsis zoo, thiab lwm yam). Lub sijhawm no, tag nrho cov khoom siv hluav taws xob hloov hluav taws xob yuav tsum raug txiav tawm kom paub qhov txawv ntawm qhov hloov hluav taws xob hloov hluav taws xob lossis cov khoom siv hluav taws xob tsis raug. Yog hais tias qhov hluav taws xob tso tawm ntawm lub disconnected load Circuit Court yog ib txwm, nws txhais tau hais tias lub load yog hnyav heev; lossis yog tias nws tseem txawv txav, nws txhais tau hais tias qhov hloov hluav taws xob hloov hluav taws xob tsis raug.
b. Qhov tsis ua haujlwm ntawm rectifier diode thiab lim capacitor ntawm qhov tso zis voltage kawg tuaj yeem txiav txim los ntawm txoj kev hloov pauv.
c. Kev ua haujlwm tsis zoo ntawm lub raj hloov pauv yuav ua rau qhov tsis ua haujlwm ntawm lub raj hloov mus ua haujlwm ib txwm, uas yuav ua rau muaj kev tiv thaiv sab hauv ntawm cov khoom siv hluav taws xob thiab txo lub peev xwm thauj khoom.
