Kev kuaj mob thiab kev saib xyuas kev ntsuas thaum ntsib qhov txawv txav ntawm qhov hluav taws xob hloov hluav taws xob
Kev tu cov txheej txheem rau kev hloov hluav taws xob muab hluav taws xob tsis muaj qhov tso tawm
Txoj kev kuaj mob yuam kev thiab cov kauj ruam
Lub luag haujlwm tseem ceeb ntawm kev daws qhov teeb meem no yog los txiav txim siab seb qhov txhaum puas nyob ntawm qhov hloov pauv, hloov lub hauv paus, lossis hloov lub raj. Txoj kev tshwj xeeb yog ntsuas cov khoom siv thiab lub hauv paus voltage ntawm lub raj hloov. Tej zaum yuav muaj ntau yam xwm txheej:
(1) Lub collector voltage ntawm lub hloov raj yog 0V, uas yog 1.4 npaug qis dua lub mains voltage. Lub raj hloov tsis muaj qhov ua haujlwm voltage. Yog tias qhov hluav taws xob yog 1.4 npaug, nws qhia tau hais tias qhov ua haujlwm voltage ntawm lub raj xa hluav taws xob yog qhov qub, thiab nws qhia tau tias AC220V thiab rectifier lim circuit ua haujlwm ib txwm.
(2) Lub hauv paus voltage ntawm lub raj hloov pauv yog 0V (nrog rau lub sijhawm pib). Qhov no qhia tau hais tias qhov pib Circuit Court tsis muab qhov pib (conductive) voltage rau lub hauv paus ntawm lub raj hloov, lossis tias cov khoom cuam tshuam ntawm lub hauv paus thiab emitter puas lawm. Qhov pib Circuit Court, hloov raj emitter, thiab lwm yam khoom yuav tsum tau kuaj xyuas. Yog tias qhov hluav taws xob nyob nruab nrab ntawm 0.6 thiab 0.7 (nrog rau lub sijhawm pib), nws qhia tau hais tias qhov pib Circuit Court, emitter, thiab cov khoom ntawm qhov hloov pauv yog qhov qub. Thaum qhov hluav taws xob siab tshaj 0.7V, nws qhia tau hais tias qhov pib hluav taws xob yog qhov qub, tab sis lub qhov hluav taws xob hloov hluav taws xob emitter junction los yog nws cov khoom qhib los yog tus nqi kuj nce.
(3) Lub raj hloov hluav taws xob muaj qhov ua tau zoo: lub hauv paus voltage ntawm lub raj hloov pauv yog 0.6-0.7V, thiab cov khoom siv hluav taws xob ntau dua 250V, qhia tias lub raj hloov pauv muaj cov haujlwm ua haujlwm. Qhov txhaum tshwm sim hauv qhov kev tawm tswv yim zoo, suav nrog cov lus pom zoo resistor, capacitor, freewheeling diode, thiab cov lus pom zoo winding ntawm kev hloov pauv hloov pauv, nrog rau kev sib txuas ntawm lawv.
Maintenance Techniques Instantaneous Voltage Output of Switching Power Supply
(1) Pseudo load txoj kev
(2) Ntsuas seb cov khoom tiv thaiv puas puas
(3) Txoj kev txiav tawm
(4) Txoj kev Hypotension. Thawj lub ntsiab lus uas yuav tsum tau hais txog yog lub peev xwm muaj zog ntawm Minrong hloov hluav taws xob, uas tuaj yeem hais tias ua tiav raws li kev nyab xeeb thiab kev nrhiav. Nws tuaj yeem hais tias cov pej xeem melting hloov hluav taws xob muaj qhov zoo xws li kev ua haujlwm siab, kev nyab xeeb siab, thiab kev poob qis, uas tsis tuaj yeem sib cais los ntawm kev koom tes muaj zog. Ib yam li ntawd, lub peev xwm ua tau zoo ntawm Minrong Switching Power Supply yog sib cais los ntawm Minrong Electric txoj kev ua raws li kev nyab xeeb thiab kev ua raws li cov neeg siv khoom.
Voltage drop detection method rau txhua qhov chaw ua haujlwm. Tom qab txiav txim siab qhov twg ntawm cov khoom siv hluav taws xob hloov pauv tsis raug los ntawm cov txheej txheem saum toj no, cov txheej txheem tshuaj xyuas rau txhua ntu yog raws li hauv qab no:
(1) Txheeb xyuas qhov ntsuas pulse width modulation circuit thiab cov lus pom zoo Circuit Court. Muaj ob txoj hauv kev los hloov cov khoom siv hluav taws xob electrolytic hauv cov lus pom zoo ntawm lub zog hloov pauv tam sim no, ib qho yog 0. 016UF0. Qhov txhaum ntawm 039uf capacitor yog tsawg heev thiab tuaj yeem raug tshem tawm los ntawm kev saib xyuas. Lwm hom yog electrolytic capacitor ntawm ib ncig ntawm 10uF. Lub capacitor no tuaj yeem hloov ncaj qha thaum kho.
(2) Thaum tsis muaj AC voltage regulator, rau overvoltage tiv thaiv faults, rau kev nyab xeeb yog vim li cas, qhov yooj yim Cheebtsam nyob rau hauv Circuit Court tsim los ntawm kev ua hauj lwm voltage ntawm lub mem tes dav modulation Circuit Court yuav tsum tau hloov ua ntej, uas yog, lub filtering capacitor ( electrolytic capacitor los ntawm ob peb micrometers mus rau 100uF), kom pom tias cov khoom siv hluav taws xob hloov pauv mus rau qhov qub.
